# The 100 largest corporate groups and holding companies in California

Tamtam tracks 270 corporate groups and holding companies headquartered in California. This list ranks the 100 largest by number of employees on LinkedIn, led by Gap Inc., Alorica and Ross Stores, Inc.. Their median headcount is 1,900. Half of them were founded in 1989 or later. The most common headquarters are Los Angeles (13), San Francisco (10) and Irvine (9).

This selection of large corporate groups and holding companies in California includes diverse sectors. Retail is represented by Gap Inc., offering clothing, and Ross Stores, Inc., an off-price retailer. Entertainment Providers include Live Nation Entertainment, a global leader in live events, and Sony Interactive Entertainment, known for PlayStation products. Alorica provides customer service outsourcing, while Lam Research designs semiconductor equipment. The Wonderful Company produces food and beverages.

The companies listed were founded between 1925 and 2005, with a notable concentration of founding dates in the late 1970s and early 1980s. Headquarters are spread across California, with significant clusters in the Los Angeles area, the San Francisco Bay Area, and Irvine.

🇺🇸 California · 100 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Gap Inc.](https://www.tamtam.ai/c/gap-inc) (gapinc.com)<br>Offers clothing, accessories, and lifestyle products for men, women, and children through multiple brands and global retail channels. | Retail | 🇺🇸 San Francisco | 72,048 | 1969 |
| 2 | [Alorica](https://www.tamtam.ai/c/alorica) (alorica.com)<br>Alorica provides world-class customer service and support for various industries, with a focus on creating great experiences for clients and employees globally | Outsourcing and Offshoring Consulting | 🇺🇸 Irvine | 70,920 | 1999 |
| 3 | [Ross Stores, Inc.](https://www.tamtam.ai/c/ross-stores-inc) (jobs.rossstores.com)<br>A Fortune 500 off-price retailer with over 2,000 stores offering savings to customers through low costs and continuous sales growth | Retail | 🇺🇸 Dublin | 42,407 | 1982 |
| 4 | [Live Nation Entertainment](https://www.tamtam.ai/c/live-nation-entertainment) (livenationentertainment.com)<br>Global leader in live events, ticketing, concerts, media, sponsorship, and artist services with comprehensive employee benefits and career opportunities. | Entertainment Providers | 🇺🇸 Beverly Hills | 24,885 | 2005 |
| 5 | [The Cheesecake Factory](https://www.tamtam.ai/c/the-cheesecake-factory) (cakecareers.com)<br>Large restaurant chain offering generous food portions, career growth opportunities, work-life balance, and a supportive team environment. | Restaurants | 🇺🇸 Calabasas Hills | 19,341 | 1978 |
| 6 | [Lam Research](https://www.tamtam.ai/c/lam-research) (lamresearch.com)<br>Design and manufacture advanced equipment that enables semiconductor chipmakers to innovate and drive technological progress across various industries. | Semiconductor Manufacturing | 🇺🇸 Fremont | 17,202 | 1980 |
| 7 | [Sony Interactive Entertainment](https://www.tamtam.ai/c/sony-interactive-entertainment) (sonyinteractive.com)<br>A global leader in entertainment and innovation, delivering cutting-edge hardware, network services, and award-winning games through the PlayStation line of products | Entertainment Providers | 🇺🇸 San Mateo | 13,000 |  |
| 8 | [General Atomics](https://www.tamtam.ai/c/general-atomics) (ga.com)<br>Development of advanced technology solutions including unmanned aerial vehicles, research reactors, aircraft systems, MagLev transport, and fusion energy for global customers. | Defense and Space Manufacturing | 🇺🇸 San Diego | 11,213 |  |
| 9 | [Farmers Insurance Group of Companies](https://www.tamtam.ai/c/farmers-insurance-group-of-companies) (farmers.com)<br>One of the largest insurers in the US offering vehicle, home, and small business insurance along with financial services through agents and employees nationwide | Insurance | 🇺🇸 Los Angeles | 8,121 | 1928 |
| 10 | [Deluxe](https://www.tamtam.ai/c/deluxe) (bydeluxe.com)<br>Deluxe is a leading service provider for the media and entertainment industry, offering a range of services to support content creators and distributors globally | Entertainment Providers | 🇺🇸 Burbank | 7,379 |  |
| 11 | [Alliant Insurance Services](https://www.tamtam.ai/c/alliant-insurance-services) (alliant.com)<br>Provides innovative insurance brokerage and consulting services, supporting diverse clients with expert teams to help grow businesses and communities. | Insurance Agencies and Brokerages | 🇺🇸 Irvine | 6,616 | 1925 |
| 12 | [RadNet](https://www.tamtam.ai/c/radnet) (radnet.com)<br>A leading provider of diagnostic imaging services with 370+ locations in core markets like California, offering services through a network of 9,000 employees | Hospitals and Health Care | 🇺🇸 Los Angeles | 5,667 | 1984 |
| 13 | [The Wonderful Company](https://www.tamtam.ai/c/the-wonderful-company) (wonderful.com)<br>Production and distribution of top-ranked pistachios, citrus, pomegranates, bottled water, wines, and floral delivery services with social responsibility. | Food and Beverage Manufacturing | 🇺🇸 Los Angeles | 5,646 |  |
| 14 | [IXL Learning](https://www.tamtam.ai/c/ixl-learning) (ixl.com)<br>Develops and provides an award-winning personalized learning platform for K-12 students, alongside a family of educational brands and resources. | E-Learning Providers | 🇺🇸 San Mateo (San Francisco Bay Area) | 5,368 |  |
| 15 | [New American Funding](https://www.tamtam.ai/c/new-american-funding) (newamericanfunding.com)<br>Provides diverse mortgage products, competitive pricing, efficient closings, and ongoing mortgage servicing to support homeownership for all clients. | Financial Services | 🇺🇸 Santa Ana | 5,229 |  |
| 16 | [Pacific Life](https://www.tamtam.ai/c/pacific-life) (pacificlife.com)<br>Provides life insurance, annuities, mutual funds, and financial products to individuals and businesses for long-term financial security. | Financial Services | 🇺🇸 Newport Beach | 4,770 | 1868 |
| 17 | [Fox (Film, TV and Sports)](https://www.tamtam.ai/c/fox-film-tv-and-sports) (21CFCareers.com)<br>Global media conglomerate providing diverse career opportunities, prioritizing hiring top talent and fostering a culture of value and inspiration | Entertainment Providers | 🇺🇸 Los Angeles | 4,623 |  |
| 18 | [Tutor Perini Corporation](https://www.tamtam.ai/c/tutor-perini-corporation) (tutorperini.com)<br>A leading construction company offering civil, building, and specialty services globally Known for executing large projects on time and within budget | Construction | 🇺🇸 Sylmar | 4,479 |  |
| 19 | [Legence](https://www.tamtam.ai/c/legence) (wearelegence.com)<br>Integrated provider of energy efficiency and sustainability solutions for diverse industries, specializing in advisory, engineering, contracting, and maintenance services for high-performance facilities | Construction | 🇺🇸 San Jose | 3,648 |  |
| 20 | [Indium](https://www.tamtam.ai/c/indium) (indium.tech)<br>A fast-growing Digital Engineering company offering modern solutions across Applications, Data, and Gaming with deep expertise in next-gen offerings and partnerships with leading technology companies | IT Services and IT Consulting | 🇺🇸 Cupertino | 3,560 | 1999 |
| 21 | [Cast & Crew](https://www.tamtam.ai/c/cast-and-crew) (castandcrew.com)<br>The company provides digital solutions, expert financial services, and cloud workflows to help film, television, digital media, and live events productions achieve their goals | Entertainment Providers | 🇺🇸 Burbank | 3,476 | 1976 |
| 22 | [Banc of California](https://www.tamtam.ai/c/banc-of-california) (bancofcal.com)<br>A premier California-based business bank offering full-service solutions to help clients achieve financial goals and grow their businesses | Banking | 🇺🇸 Los Angeles | 3,312 |  |
| 23 | [X, The Moonshot Factory](https://www.tamtam.ai/c/x-the-moonshot-factory) (x.company)<br>A moonshot factory inventing and launching breakthrough technologies to create a radically better world | Research Services | 🇺🇸 Mountain View | 3,149 |  |
| 24 | [Heritage Grocers Group](https://www.tamtam.ai/c/heritage-grocers-group) (heritagegrocersgroup.com)<br>Specialty, ethnic food retailer with traditional and specialty grocery items, operating in 6 states with multiple store banners Headquarters in Ontario, California | Retail | 🇺🇸 Ontario | 3,046 | 2016 |
| 25 | [International Education Corporation](https://www.tamtam.ai/c/international-education-corporation) (ieccolleges.com)<br>An employee-owned company offering career training programs in healthcare, business, technology, trades, and criminal justice with comprehensive benefits and tuition discounts | Higher Education | 🇺🇸 Irvine | 3,010 |  |
| 26 | [Live Nation](https://www.tamtam.ai/c/live-nation) (livenation.com)<br>Global leader in live entertainment and eCommerce, comprising of ticketing, concert production, artist management, and entertainment marketing solutions for advertisers | Entertainment Providers | 🇺🇸 Beverly Hills | 3,005 |  |
| 27 | [Kratos Defense and Security Solutions](https://www.tamtam.ai/c/kratos-defense-and-security-solutions) (kratosdefense.com)<br>National security technologies spanning unmanned systems, hypersonics, satellite communications, cyber defense, and propulsion systems for rapid deployment to support various military domain missions. | Defense and Space Manufacturing | 🇺🇸 San Diego | 2,950 |  |
| 28 | [VSP Vision Care](https://www.tamtam.ai/c/vsp-vision-care) (vsp.com)<br>Providing quality vision care, personalized attention, and affordable eyewear options to ensure superior eye health and member satisfaction. | Insurance | 🇺🇸 Rancho Cordova | 2,945 | 1955 |
| 29 | [Macy's Retail Holdings, Inc.](https://www.tamtam.ai/c/macy-s-retail-holdings-inc) (macysinc.com)<br>A supermarkets company based in the United States | Retail Groceries | 🇺🇸 Poway | 2,934 | 1910 |
| 30 | [Intrax](https://www.tamtam.ai/c/intrax) (intraxinc.com)<br>Global provider of educational and cultural programs connecting people worldwide through high school exchanges, volunteer opportunities, work placements, and more Headquartered in San Francisco | Education Administration Programs | 🇺🇸 San Francisco | 2,929 | 1980 |
| 31 | [Montage International](https://www.tamtam.ai/c/montage-international) (montageinternational.com)<br>Luxury hospitality management with ultra-luxury hotels, new luxury resorts, residences, and premier golf courses in diverse and exclusive destinations worldwide | Hospitality | 🇺🇸 Irvine | 2,833 | 2002 |
| 32 | [Disney Media & Entertainment Distribution](https://www.tamtam.ai/c/disney-media-and-entertainment-distribution) (disneycareers.com)<br>They combine technology, media distribution, and advertising sales to deliver personalized entertainment experiences to consumers globally through international business units and streaming services | Entertainment Providers | 🇺🇸 Glendale | 2,709 |  |
| 33 | [The Walt Disney Studios](https://www.tamtam.ai/c/the-walt-disney-studios) (jobs.disneycareers.com)<br>A company with 100 years of history producing quality movies, episodic storytelling, and stage plays through respected film studios and theatrical productions | Entertainment Providers | 🇺🇸 Burbank | 2,693 |  |
| 34 | [ACCO Engineered Systems](https://www.tamtam.ai/c/acco-engineered-systems) (accoes.com)<br>A leading mechanical contractor offering design, installation, maintenance, and service of HVAC, refrigeration, plumbing, process piping, and building automation systems | Construction | 🇺🇸 Pasadena | 2,686 |  |
| 35 | [Community Health System](https://www.tamtam.ai/c/community-health-system) (communityhealthsystem.org)<br>Nonprofit health system with 11,000 employees, 2,500 affiliated physicians, serving Central Valley residents regardless of payment ability. | Hospitals and Health Care | 🇺🇸 Fresno | 2,624 |  |
| 36 | [Cottage Health](https://www.tamtam.ai/c/cottage-health) (cottagehealth.org)<br>A not-for-profit healthcare organization providing superior healthcare and improving community health through excellence, integrity, and compassion for over 125 years | Hospitals and Health Care | 🇺🇸 Santa Barbara | 2,570 | 1888 |
| 37 | [HAND Enterprise Solutions LTD.](https://www.tamtam.ai/c/hand-enterprise-solutions-ltd) (hand-us.com)<br>Global software service provider with 20 years of experience specializing in ORACLE and SAP implementations across multiple industries worldwide | IT Services and IT Consulting | 🇺🇸 Milpitas | 2,555 | 1996 |
| 38 | [Hewlett Packard](https://www.tamtam.ai/c/hewlett-packard) (hpe.com)<br>An American multinational IT company offering hardware components, software, and services to consumers, SMBs, large enterprises, government, health, and education sectors Founded in 1939 | IT Services and IT Consulting | 🇺🇸 Palo Alto | 2,526 |  |
| 39 | [Carrington Holding Company, LLC](https://www.tamtam.ai/c/carrington-holding-company-llc) (carringtonhc.com)<br>A company specializing in single-family residential real estate transactions, including investments, loan origination, asset management, property preservation, real estate sales, and title services | Financial Services | 🇺🇸 Aliso Viejo | 2,427 | 2003 |
| 40 | [Course Hero](https://www.tamtam.ai/c/course-hero) (coursehero.com)<br>Online learning platform with study resources for all subjects, created by students, educators, and experts Support student learning for academic success | Technology, Information and Internet | 🇺🇸 Menlo Park | 2,335 | 2006 |
| 41 | [Power Digital Marketing](https://www.tamtam.ai/c/power-digital-marketing) (powerdigitalmarketing.com)<br>Growth marketing firm utilizing proprietary technology to analyze digital ecosystems and develop custom data-driven playbooks for revenue growth and brand recognition worldwide. | Advertising Services | 🇺🇸 San Diego | 2,318 | 2012 |
| 42 | [Kemin Industries](https://www.tamtam.ai/c/kemin-industries) (kemin.com)<br>Global manufacturer providing over 500 specialty ingredients for diverse industries including human health, animal feed, pet food, and crop technologies, improving quality of life. | Biotechnology Research | 🇺🇸 Des Moines | 2,221 | 1961 |
| 43 | [The Travel Corporation](https://www.tamtam.ai/c/the-travel-corporation) (ttc.com)<br>Family of brands specializing in responsible tourism, creating unique local experiences, supporting sustainability projects, and ensuring seamless travel journeys worldwide. | Travel Arrangements | 🇺🇸 Costa Mesa | 2,201 | 1920 |
| 44 | [Fender Musical Instruments Corporation](https://www.tamtam.ai/c/fender-musical-instruments-corporation) (fender.com)<br>Manufacturing and distributing high-quality electric and acoustic guitars, amplifiers, pro audio, accessories, and digital music products worldwide. | Musicians | 🇺🇸 Los Angeles | 2,171 | 1946 |
| 45 | [Rakuten International](https://www.tamtam.ai/c/rakuten-international) (rakuteninternational.com)<br>A multinational company with a diverse portfolio in e-commerce, digital content, advertising, entertainment, and communications, striving to make life more rewarding for all | Software Development | 🇺🇸 San Mateo | 2,170 |  |
| 46 | [SCAN](https://www.tamtam.ai/c/scan) (thescangroup.org)<br>A leading not-for-profit Medicare Advantage plan offering senior care services, community programs, education, and support for members, seniors, and caregivers | Hospitals and Health Care | 🇺🇸 Long Beach | 2,098 | 1977 |
| 47 | [Dyninno Group](https://www.tamtam.ai/c/dyninno-group) (dyninno.com)<br>A global company specializing in bringing innovations to Travel, Entertainment, and FinTech, with diverse teams offering training and career growth opportunities Apply today! | IT Services and IT Consulting | 🇺🇸 San Francisco | 2,056 | 2004 |
| 48 | [Central Garden & Pet](https://www.tamtam.ai/c/central-garden-and-pet) (central.com)<br>Innovative and trusted provider of products for greener lawns, blooming gardens, healthier pets, and stronger communities with a passionate team of over 6,700 employees | Manufacturing | 🇺🇸 Walnut Creek | 1,999 | 1980 |
| 49 | [The Bay Club Company](https://www.tamtam.ai/c/the-bay-club-company) (bayclubs.com)<br>A leader in the active lifestyle industry, offering fitness, sports, family, and hospitality experiences across the West Coast through innovative Shared Memberships | Hospitality | 🇺🇸 San Francisco | 1,948 | 1977 |
| 50 | [Edison International](https://www.tamtam.ai/c/edison-international) (edison.com)<br>A leading electric power generator and distributor, investing in renewable energy, infrastructure, and energy assets through its subsidiaries Based in California | Utilities | 🇺🇸 Rosemead | 1,900 |  |
| 51 | [Foundation Building Materials](https://www.tamtam.ai/c/foundation-building-materials) (myfbm.com)<br>Leading distributor of building materials in North America with over 200 branch locations across 36 states, offering best-in-class products and services | Wholesale Building Materials | 🇺🇸 Santa Ana | 1,886 | 2011 |
| 52 | [Alphabet Inc.](https://www.tamtam.ai/c/alphabet-inc) (abc.xyz)<br>A collection of diverse companies, encompassing Google, Verily Life Sciences, GV, Calico, and X, operating under the parent company Alphabet | Holding Companies | 🇺🇸 Mountain View | 1,859 | 2015 |
| 53 | [Milk](https://www.tamtam.ai/c/milk) (milkgroup.com)<br>The company offers full-service creative expression and collaboration through its agency, studio spaces, production services, makeup line, and event production services | Media Production | 🇺🇸 Los Angeles | 1,856 | 1997 |
| 54 | [Montage Health](https://www.tamtam.ai/c/montage-health) (montagehealth.org)<br>A nonprofit organization offering diverse healthcare services including preventive, restorative, palliative care, mental healthcare, and wellness programs with a shared vision of optimal health | Hospitals and Health Care | 🇺🇸 Monterey | 1,851 |  |
| 55 | [ADEC Innovations](https://www.tamtam.ai/c/adec-innovations) (adec-innovations.com)<br>ADEC Innovations offers integrated industry expertise, data management, and software services to meet ESG needs, improve sustainability performance, and drive operational efficiencies globally | Business Consulting and Services | 🇺🇸 Irvine | 1,801 |  |
| 56 | [Hyundai Capital America](https://www.tamtam.ai/c/hyundai-capital-america) (hyundaicapitalamerica.com)<br>Provides auto financing, leasing, and protection plans for Hyundai, Genesis, and Kia customers and dealerships across the United States. | Financial Services | 🇺🇸 Irvine | 1,724 | 1989 |
| 57 | [CoolSys - Refrigeration and HVAC Systems](https://www.tamtam.ai/c/coolsys-refrigeration-and-hvac-systems) (coolsys.com)<br>This company provides sustainable refrigeration, HVAC, energy, and engineering solutions for various sectors, covering the entire lifecycle of commercial systems | Facilities Services | 🇺🇸 Brea | 1,675 | 1997 |
| 58 | [Interior Logic Group, Inc.](https://www.tamtam.ai/c/interior-logic-group-inc) (interiorlogicgroup.com)<br>National provider of design and finish solutions offering installation of flooring, cabinets, countertops, and window coverings for homebuilders, commercial, and multifamily customers. | Design Services | 🇺🇸 San Diego | 1,664 |  |
| 59 | [California Resources Corporation](https://www.tamtam.ai/c/california-resources-corporation) (crc.com)<br>An independent energy and carbon management company in California focused on energy transition through low carbon intensity production and decarbonization projects | Oil and Gas | 🇺🇸 Los Angeles | 1,628 | 2014 |
| 60 | [B. Riley Financial](https://www.tamtam.ai/c/b-riley-financial) (brcgh.com)<br>Provides diverse collaborative solutions in capital raising, business advisory, investment banking, wealth management, financial consulting, corporate restructuring, risk/compliance, and more | Financial Services | 🇺🇸 Los Angeles | 1,596 | 1997 |
| 61 | [Xperi Inc.](https://www.tamtam.ai/c/xperi-inc) (xperi.com)<br>Develops and delivers advanced technologies powering smart devices, connected cars, and digital entertainment for immersive, intelligent, and personal experiences worldwide. | Computers and Electronics Manufacturing | 🇺🇸 San Jose | 1,565 |  |
| 62 | [Tri Pointe Homes](https://www.tamtam.ai/c/tri-pointe-homes-irvine) (tripointehomes.com)<br>builds premium homes and communities across 10 states, combining national resources with local expertise and strong community ties | Real Estate | 🇺🇸 Irvine | 1,505 | 2009 |
| 63 | [WME \| IMG](https://www.tamtam.ai/c/wme-img) (endeavorco.com)<br>This company provides updates on the network, previously known as WME \| IMG, through their new Endeavor page | Entertainment Providers | 🇺🇸 Beverly Hills | 1,466 |  |
| 64 | [Acrisure](https://www.tamtam.ai/c/acrisure-canoga-park) (acrisure.com)<br>Established in 1972, we are one of California's largest independent insurance brokerage firms specializing in commercial insurance, surety, and employee benefits services | Insurance | 🇺🇸 Canoga Park | 1,455 | 1972 |
| 65 | [Activision Blizzard](https://www.tamtam.ai/c/activision-blizzard) (activisionblizzard.com)<br>One of the largest interactive entertainment companies with popular franchises like Call of Duty, World of Warcraft, and Candy Crush | Entertainment Providers | 🇺🇸 Santa Monica | 1,433 |  |
| 66 | [MGA Entertainment](https://www.tamtam.ai/c/mga-entertainment) (mgae.com)<br>Design and deliver innovative toys, dolls, games, electronics, fashion, and entertainment content inspiring imagination and creativity worldwide. | Consumer Goods | 🇺🇸 Chatsworth | 1,402 | 1979 |
| 67 | [Confie](https://www.tamtam.ai/c/confie) (confie.com)<br>Largest independent personal lines insurance agency in the US offering auto, homeowners, renters, life, and health coverage with trusted local service. | Insurance | 🇺🇸 Huntington Beach | 1,366 | 2008 |
| 68 | [Recology](https://www.tamtam.ai/c/recology) (recology.com)<br>Recology provides waste collection, recycling, and composting services in multiple states, prioritizing sustainability, employee ownership, and customer satisfaction | Environmental Services | 🇺🇸 San Francisco | 1,306 | 1920 |
| 69 | [Jackson Family Wines](https://www.tamtam.ai/c/jackson-family-wines) (jacksonfamilywines.com)<br>Family-owned winery group producing artisanal wines with distinct character, focusing on sustainability, quality vineyards, and inspired winemaking practices. | Beverage Manufacturing | 🇺🇸 Santa Rosa | 1,296 | 1983 |
| 70 | [ICW Group](https://www.tamtam.ai/c/icw-group) (icwgroup.com)<br>National multi-line property and casualty insurance company offering comprehensive coverage through multiple carriers to protect customers and support independent agents. | Insurance | 🇺🇸 San Diego | 1,242 | 1972 |
| 71 | [Collectors](https://www.tamtam.ai/c/collectors) (collectors.com)<br>A company modernizing how collectors find, buy, authenticate, track, and research collectibles like sports cards, coins, video games, and pokemon cards | Consumer Services | 🇺🇸 Santa Ana | 1,240 | 1986 |
| 72 | [Talent Systems, LLC](https://www.tamtam.ai/c/talent-systems-llc) (talentsystems.com)<br>A leading technology solution provider for casting, auditioning, and crew hiring in the entertainment industry, offering a global casting software ecosystem | Software Development | 🇺🇸 Los Angeles | 1,191 |  |
| 73 | [WEBTOON](https://www.tamtam.ai/c/webtoon) (webtoons.com)<br>Global leader in mobile webcomics and webnovels providing creator platforms for visual storytelling with adaptations across streaming services and various media partners. | Entertainment Providers | 🇺🇸 El Segundo | 1,169 | 2014 |
| 74 | [AppDirect](https://www.tamtam.ai/c/appdirect) (appdirect.com)<br>It is a B2B subscription commerce platform connecting technology providers, advisors, and businesses to streamline technology purchasing and management. | IT Services and IT Consulting | 🇺🇸 San Francisco | 1,155 | 2009 |
| 75 | [Aspire Bakeries](https://www.tamtam.ai/c/aspire-bakeries) (aspirebakeries.com)<br>A North American baking company specializing in frozen baked goods, offering a diverse range including breads, cookies, donuts, and pastries | Food and Beverage Manufacturing | 🇺🇸 Los Angeles | 1,138 |  |
| 76 | [Teichert](https://www.tamtam.ai/c/teichert) (teichert.com)<br>A company founded in 1887 that provides construction services, infrastructure building, and construction materials while prioritizing environmental sustainability and community partnerships | Construction | 🇺🇸 Sacramento | 1,128 | 1887 |
| 77 | [CIM Group](https://www.tamtam.ai/c/cim-group) (cimgroup.com)<br>Real estate and infrastructure owner, developer, lender, and operator focused on creating value in real assets to benefit communities | Financial Services | 🇺🇸 Los Angeles | 1,098 | 1994 |
| 78 | [AssetMark](https://www.tamtam.ai/c/assetmark) (assetmark.com)<br>A leading wealth management platform providing tailored solutions to financial advisors, empowering them to drive client engagement, increase efficiency, and deliver better investor outcomes | Financial Services | 🇺🇸 Concord | 1,079 | 1996 |
| 79 | [Berkshire Hathaway Homestate Companies - Workers Compensation Division](https://www.tamtam.ai/c/berkshire-hathaway-homestate-companies-workers-compensation-division) (bhhc.com)<br>A national insurance group with 50+ years of experience, focused on financial strength, integrity, and personalized service across the United States | Insurance | 🇺🇸 San Francisco | 994 |  |
| 80 | [McGrath RentCorp](https://www.tamtam.ai/c/mcgrath-rentcorp) (mgrc.com)<br>A successful company with over $734 million in annual revenue, 1,200+ employees, and a strong company culture, seeking innovative individuals to join their team | Real Estate and Equipment Rental Services | 🇺🇸 Livermore | 990 | 1979 |
| 81 | [GOAT Group](https://www.tamtam.ai/c/goat-group) (goatgroup.com)<br>Leading global marketplace for authentic sneakers, apparel, and accessories with multiple brands and a community of over 50 million members. | Technology, Information and Internet | 🇺🇸 Los Angeles | 986 |  |
| 82 | [GoDigital](https://www.tamtam.ai/c/godigital) (godigital.com)<br>A media and technology holding company managing intellectual property rights in music, digital media networks, and commerce with innovative financing solutions | Entertainment Providers | 🇺🇸 Marina del Rey | 932 | 2006 |
| 83 | [Champions Group Holdings](https://www.tamtam.ai/c/champions-group-holdings) (championsgroupholdings.com)<br>A company in the home services industry focused on building relationships with employees, partners, and clients, and partnering with top businesses | Consumer Services | 🇺🇸 Irvine | 888 | 2019 |
| 84 | [Jollibee Group North America](https://www.tamtam.ai/c/jollibee-group-north-america) (jollibeefoods.com)<br>A family-owned restaurant group founded in 1975, now operating 18 brands in 34 countries with a mission to bring joy through food worldwide | Restaurants | 🇺🇸 West Covina | 871 |  |
| 85 | [Dine Brands Global](https://www.tamtam.ai/c/dine-brands-global) (dinebrands.com)<br>Established in 2007, this company owns and supports over 3,700 Applebee's and IHOP restaurants globally, focusing on growth, innovation, and collaboration | Restaurants | 🇺🇸 Pasadena | 869 | 2008 |
| 86 | [Clearway Energy Group](https://www.tamtam.ai/c/clearway-energy-group) (clearwayenergygroup.com)<br>Leading the transition to clean energy through ownership and operation of renewable and conventional energy assets, offsetting millions of metric tons of carbon emissions | Renewable Energy Power Generation | 🇺🇸 San Francisco | 860 | 2018 |
| 87 | [Life360](https://www.tamtam.ai/c/life360) (life360.com)<br>A leading mobile app and device provider that helps users protect loved ones with location sharing, safe driver reports, and emergency services | Individual and Family Services | 🇺🇸 San Mateo | 856 |  |
| 88 | [Becton Dickinson Company (Safety Syringes, Inc. )](https://www.tamtam.ai/c/becton-dickinson-company-safety-syringes-inc) (bd.com)<br>A global medical technology company advancing health through improved medical discovery, diagnostics, and care delivery | Medical Equipment Manufacturing | 🇺🇸 San Diego | 854 |  |
| 89 | [HME](https://www.tamtam.ai/c/hme) (hme.com)<br>A global provider of communication and software technologies for various industries, focusing on enhancing productivity and customer service through innovative solutions | Appliances, Electrical, and Electronics Manufacturing | 🇺🇸 Carlsbad | 833 | 1971 |
| 90 | [Pattern Energy](https://www.tamtam.ai/c/pattern-energy) (patternenergy.com)<br>Development and operation of wind, solar, transmission, and energy storage projects with nearly 6,000 MW capacity in North America. | Renewable Energy Power Generation | 🇺🇸 San Francisco | 826 |  |
| 91 | [NEOGOV](https://www.tamtam.ai/c/neogov) (neogov.com)<br>NEOGOV provides comprehensive software solutions for government, public safety, and education organizations to attract, retain, and develop top talent, enhancing productivity and efficiency | Software Development | 🇺🇸 El Segundo | 821 |  |
| 92 | [PlanetArt](https://www.tamtam.ai/c/planetart) (planetart.com)<br>E-commerce platform offering affordable, high-quality personalized cards, gifts, wall art, apparel, and home décor through global websites. | Technology, Information and Internet | 🇺🇸 Calabasas | 817 | 2010 |
| 93 | [Frank, Rimerman + Co. LLP](https://www.tamtam.ai/c/frank-rimerman-co-llp) (frankrimerman.com)<br>A top accounting firm with over 70 years of experience, providing local and global accounting and consulting services to individuals and businesses | Accounting | 🇺🇸 Palo Alto | 805 | 1949 |
| 94 | [Wienerschnitzel](https://www.tamtam.ai/c/wienerschnitzel) (wienerschnitzelfranchise.com)<br>Established in 1961 by John Galardi, this company is a leader in the quick-service food industry, serving over 120 million hot dogs yearly with a renowned chili recipe | Restaurants | 🇺🇸 Irvine | 783 | 1961 |
| 95 | [SoundHound AI](https://www.tamtam.ai/c/soundhound-ai) (soundhound.com)<br>A global innovator in conversational technologies, creating custom voice assistants for top brands and enabling natural interactions through Voice AI solutions | Software Development | 🇺🇸 Santa Clara | 775 | 2005 |
| 96 | [Harrington Process Solutions](https://www.tamtam.ai/c/harrington-process-solutions) (hipco.com)<br>Supplying premium industrial process products and technical support through a nationwide network of warehouses, offering customized inventory management and emergency 24/7 service. | Wholesale | 🇺🇸 Chino | 766 |  |
| 97 | [Entravision US Media](https://www.tamtam.ai/c/entravision-us-media) (entravision.com)<br>A global advertising, media, and ad-tech solutions company connecting brands to consumers through top platforms and publishers worldwide | Advertising Services | 🇺🇸 Burbank | 764 | 1996 |
| 98 | [Karman Space & Defense](https://www.tamtam.ai/c/karman-space-and-defense) (karman-sd.com)<br>Supplier of metallic and composite flight hardware and sub-assemblies for space, missile, and hypersonic markets, offering comprehensive supply chain solutions. | Defense and Space Manufacturing | 🇺🇸 Huntington Beach | 760 | 2021 |
| 99 | [Anchorage Digital](https://www.tamtam.ai/c/anchorage-digital) (anchorage.com)<br>A crypto platform enabling institutional participation in digital assets through custody, staking, trading, and more, with a focus on security and regulatory compliance | Financial Services | 🇺🇸 San Francisco | 741 | 2017 |
| 100 | [Jacuzzi Group](https://www.tamtam.ai/c/jacuzzi-group) (jacuzzi.com)<br>Global manufacturer and distributor of hot tubs, swim spas, baths, showers, saunas, and pool equipment through extensive retail networks and independent dealers. | Manufacturing | 🇺🇸 Chino | 734 | 1956 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

## More company lists in California

- [The largest companies in California](https://www.tamtam.ai/l/largest-companies-california) (15,265)
- [Multinational companies in California](https://www.tamtam.ai/l/multinational-companies-california) (2,592)
- [SaaS companies in California](https://www.tamtam.ai/l/saas-companies-california) (1,855)
- [Software Development companies in California](https://www.tamtam.ai/l/software-development-companies-california) (1,650)
- [AI companies in California](https://www.tamtam.ai/l/ai-companies-california) (1,297)
- [Companies with in-house R&D in California](https://www.tamtam.ai/l/r-and-d-companies-california) (1,276)
- [Manufacturers in California](https://www.tamtam.ai/l/manufacturers-california) (1,066)
- [Hardware manufacturers in California](https://www.tamtam.ai/l/hardware-companies-california) (985)
- [IT Services and IT Consulting companies in California](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-california) (968)
- [Education providers in California](https://www.tamtam.ai/l/education-companies-california-united-states) (950)
- [Subscription businesses in California](https://www.tamtam.ai/l/subscription-businesses-california) (940)
- [Venture capital and private equity firms in California](https://www.tamtam.ai/l/vc-and-private-equity-firms-california) (917)
- [Professional services firms in California](https://www.tamtam.ai/l/professional-services-firms-california) (880)
- [Companies with a mobile app in California](https://www.tamtam.ai/l/companies-with-mobile-app-california) (827)
- [Retail chains in California](https://www.tamtam.ai/l/retail-chains-california) (803)
- [IT services companies in California](https://www.tamtam.ai/l/it-services-companies-california) (796)
- [Venture Capital and Private Equity Principals companies in California](https://www.tamtam.ai/l/venture-capital-and-private-equity-principals-companies-california) (731)
- [Financial services firms in California](https://www.tamtam.ai/l/financial-services-firms-california) (711)
- [Financial Services companies in California](https://www.tamtam.ai/l/financial-services-companies-california) (642)
- [Healthcare providers in California](https://www.tamtam.ai/l/healthcare-providers-california) (569)
- [AI-native companies in California](https://www.tamtam.ai/l/ai-native-companies-california) (561)
- [Hospitals and Health Care companies in California](https://www.tamtam.ai/l/hospitals-and-health-care-companies-california) (555)
- [Consulting firms in California](https://www.tamtam.ai/l/consulting-firms-california) (551)
- [Public sector organisations in California](https://www.tamtam.ai/l/public-sector-organisations-california) (535)

## The same list elsewhere in United States

- [Corporate groups and holding companies in the United States](https://www.tamtam.ai/l/holding-companies-united-states) (2,829)
- [Corporate groups and holding companies in New York State](https://www.tamtam.ai/l/holding-companies-new-york-state) (245)
- [Corporate groups and holding companies in Texas](https://www.tamtam.ai/l/holding-companies-texas) (238)
- [Corporate groups and holding companies in Florida](https://www.tamtam.ai/l/holding-companies-florida) (182)
- [Corporate groups and holding companies in Illinois](https://www.tamtam.ai/l/holding-companies-illinois) (154)
- [Corporate groups and holding companies in Pennsylvania](https://www.tamtam.ai/l/holding-companies-pennsylvania) (120)
- [Corporate groups and holding companies in Ohio](https://www.tamtam.ai/l/holding-companies-ohio) (104)
- [Corporate groups and holding companies in Georgia](https://www.tamtam.ai/l/holding-companies-georgia) (90)
- [Corporate groups and holding companies in Michigan](https://www.tamtam.ai/l/holding-companies-michigan) (90)
- [Corporate groups and holding companies in Alabama](https://www.tamtam.ai/l/holding-companies-alabama) (89)
- [Corporate groups and holding companies in Massachusetts](https://www.tamtam.ai/l/holding-companies-massachusetts) (87)
- [Corporate groups and holding companies in New Jersey](https://www.tamtam.ai/l/holding-companies-new-jersey) (79)
- [Corporate groups and holding companies in Virginia](https://www.tamtam.ai/l/holding-companies-virginia) (78)
- [Corporate groups and holding companies in North Carolina](https://www.tamtam.ai/l/holding-companies-north-carolina) (70)
- [Corporate groups and holding companies in Tennessee](https://www.tamtam.ai/l/holding-companies-tennessee) (60)
- [Corporate groups and holding companies in Wisconsin](https://www.tamtam.ai/l/holding-companies-wisconsin) (60)
- [Corporate groups and holding companies in Missouri](https://www.tamtam.ai/l/holding-companies-missouri) (59)
- [Corporate groups and holding companies in Minnesota](https://www.tamtam.ai/l/holding-companies-minnesota) (57)
- [Corporate groups and holding companies in Indiana](https://www.tamtam.ai/l/holding-companies-indiana) (54)
- [Corporate groups and holding companies in Colorado](https://www.tamtam.ai/l/holding-companies-colorado) (52)
- [Corporate groups and holding companies in New York](https://www.tamtam.ai/l/holding-companies-new-york) (152)
- [Corporate groups and holding companies in Houston](https://www.tamtam.ai/l/holding-companies-houston) (74)
- [Corporate groups and holding companies in Chicago](https://www.tamtam.ai/l/holding-companies-chicago) (64)
- [Corporate groups and holding companies in Atlanta](https://www.tamtam.ai/l/holding-companies-atlanta) (47)

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Source: https://www.tamtam.ai/l/holding-companies-california