These private equity-backed companies in California are mostly mid-sized to large firms, with a strong presence in IT services and software development. Notable companies include VXI Global Solutions, a BPO leader, and DIRECTV, which provides television content. R Systems, Infogain, and Xoriant are prominent in IT services, while Infinx specializes in healthcare solutions.
A significant cluster of these companies, such as R Systems, Infogain, Xoriant, Apexon, Coupa, Cloudera, TIBCO, and Barracuda, are headquartered in the greater San Francisco Bay Area, indicating a concentration of tech-focused firms in that region. There is also a mix of industries, including entertainment, healthcare, and construction.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
VXI Global Solutionsvxi.com
BPO leader offering customer service & digital solutions worldwide, with focus on omni-channel support, automation, & revenue generation for top brands |
22,830 | |||
| 2 |
DIRECTVdirectv.com
Provides high-quality television content and personalized video services across multiple screens, utilizing emerging technologies to deliver reliable entertainment for passionate superfans everywhere. |
15,343 | |||
| 3 |
R Systemsrsystems.com
Global provider of product engineering, digital solutions, AI, cloud-native capabilities, automation, and strategic growth support for diverse industries. |
6,833 | |||
| 4 |
Infogaininfogain.com
Infogain specializes in digital customer experience engineering, delivering solutions for Fortune 500 companies across various industries using advanced technologies. |
6,161 | |||
| 5 |
Xoriantxoriant.com
Xoriant is a global digital engineering firm that turns imaginative visions into realities, accelerating business outcomes with innovative technology solutions |
5,220 | |||
| 6 |
Infinxinfinx.com
Innovative healthcare company offering scalable prior authorization and revenue cycle management solutions, using AI-driven software and billing specialists to optimize revenue capture |
5,195 | |||
| 7 |
Apexonapexon.com
Digital-first technology services firm specializing in accelerating business transformation through human-centric digital experiences Expertise in UX/UI, engineering, data, focusing on BFSI, healthcare, and life sciences |
4,339 | |||
| 8 |
Restaurant365restaurant365.com
cloud-based platform for restaurant accounting, inventory, workforce management, payroll, and integrations to optimize operations and improve guest experiences |
3,986 | |||
| 9 |
California Pizza Kitchencpk.com
A global brand known for innovative California-style cuisine, featuring creative pizzas and a unique dining experience in over 14 countries |
3,841 | |||
| 10 | 3,715 | ||||
| 11 |
Legencewearelegence.com
Integrated provider of energy efficiency and sustainability solutions for diverse industries, specializing in advisory, engineering, contracting, and maintenance services for high-performance facilities |
3,648 | |||
| 12 |
Clouderacloudera.com
Empowering individuals to unlock insights from complex data, delivering an enterprise data cloud solution for all data sources, from Edge to AI |
3,442 | |||
| 13 |
Cubic Corporationcubic.com
The company creates technology solutions in transportation to simplify daily journeys and defense capabilities to promote mission success and safety |
3,095 | |||
| 14 | 2,334 | ||||
| 15 |
Barracudabarracuda.com
Provides comprehensive cybersecurity protection for businesses of all sizes. Offers AI-powered platform securing email, data, applications, and networks with managed XDR and centralized management. |
2,263 | |||
| 16 |
Kofaxtungstenautomation.com
It is a leader in intelligent workflow automation, serving thousands of customers globally, with a strong commitment to innovation and efficiency. |
1,437 | |||
| 17 |
True Religiontruereligion.com
It crafts unique denim, aiming to influence culture through innovative design and craftsmanship, embracing individuality and challenging conventions in fashion. |
1,429 | |||
| 18 |
Dreyer's Grand Ice Creamdreyersgrandicecream.com
A leading ice cream business in the US, part of a global team with a strong portfolio of beloved brands Passionate about innovation and excellence |
1,252 | |||
| 19 | 1,239 | ||||
| 20 |
DOLE Fresh Vegetablesdole.com
A global team committed to providing safe, high-quality fresh fruit and vegetables, while protecting the environment and ensuring food safety |
1,162 | |||
| 21 |
Robosoft Technologiesrobosoftin.com
Robosoft Technologies is a leading digital transformation partner, specializing in digital product strategy, design, development, testing, cybersecurity, and data science for various industries globally |
1,085 | |||
| 22 |
Prospect Mortgage, LLC
A leading residential mortgage lender offering a range of loan products and exceptional service, backed by a growth-focused private equity firm |
1,008 | |||
| 23 |
Stratford Schoolstratfordschools.com
Leading independent WASC-accredited private school in California offering preschool through 12th grade education with a focus on individualized learning and STEAM curriculum |
957 | |||
| 24 |
K2 Insurance Servicesk2ins.com
Specialty insurance services company focused on strategic acquisitions to diversify earnings and enhance distribution economics, offering innovative products through various channels |
930 | |||
| 25 |
Blue Star Infotechinfogain.com
A Silicon Valley based company specializing in digital platform and software engineering for various industries, with a focus on design-led transformation and customer engagement systems |
912 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
KabaFusionkabafusion.com
Specializing in infusion therapy, we prioritize patient care by offering comprehensive services, including IVIG therapy, with trained professionals and multiple nationwide locations |
821 | |||
| 27 |
NEOGOVneogov.com
NEOGOV provides comprehensive software solutions for government, public safety, and education organizations to attract, retain, and develop top talent, enhancing productivity and efficiency |
821 | |||
| 28 |
Pelican Products, Inc.pelican.com
Global leader in designing and manufacturing high-performance protective cases, temperature-controlled packaging solutions, portable lighting systems, and rugged gear for professionals and outdoor enthusiasts |
815 | |||
| 29 |
One Identityoneidentity.com
Unifying identity governance, privileged access, and access management for organizations; strengthens identity perimeter, protects against breaches, ensures governance and compliance. |
737 | |||
| 30 |
Spring Education Groupspringeducationgroup.com
Spring Education Group provides top-tier private school education from infancy to high school by uniting leading private school programs across the US and Asia |
654 | |||
| 31 |
Prodege, LLCprodege.com
Platform providing marketing insights and consumer data to help brands acquire customers, increase revenue, and drive loyalty. |
627 | |||
| 32 |
Mattson Technologymattson.com
Semiconductor wafer processing equipment manufacturer providing innovative technology solutions to global memory and logic device manufacturers for advanced semiconductor fabrication |
623 | |||
| 33 |
Jumio Corporationjumio.com
Provides AI-powered identity intelligence, anchored in biometric authentication and automation, to establish and maintain trust for organizations and fight fraud. |
613 | |||
| 34 |
Planfulplanful.com
Helps businesses streamline planning, budgeting, consolidations, reporting, and analytics through cloud software to drive peak financial performance. |
546 | |||
| 35 |
Thermatherma.com
Maximizing energy efficiency through engineering, construction, installation, and maintenance of mechanical and plumbing systems for complex built environments and manufacturing facilities. |
528 | |||
| 36 | 508 | ||||
| 37 |
BioDurobioduro.com
Provides integrated contract research, development, and manufacturing services to biotech and pharma partners, supporting drug discovery to commercial manufacturing globally. |
476 | |||
| 38 |
Bridgepointe Technologiesbridgepointetechnologies.com
Tech advisory firm bridging tech investments and business goals for mid-market and enterprise clients Streamlining procurement, reducing costs, and optimizing ROI |
473 | |||
| 39 |
Golden West Packaging Groupgoldenwestpackaging.com
Leading provider of customized packaging solutions in North America, offering a wide range of high-quality packaging products to help customers sell more products effectively |
455 | |||
| 40 |
Intecsa Groupintecsa.eu
A Spanish engineering company specializing in transport, ports, logistics, building, water, and environment projects with global presence in multiple countries |
453 | |||
| 41 |
HEAT Softwareivanti.com
A leading provider of Cloud Service Management and Unified Endpoint Management solutions, empowering organizations to automate business processes and proactively protect against threats |
451 | |||
| 42 |
Auction.comauction.com
Leading online platform for foreclosure, bank-owned real estate auctions, making homeownership accessible through transparency, technology, and care for neighborhoods, buyers, sellers. |
433 | |||
| 43 |
Topgolf Callaway Brandstopgolfcallawaybrands.com
A tech-enabled Modern Golf and active lifestyle company with global brands offering both on-course and off-course golf experiences |
405 | |||
| 44 |
BioMed Realtybiomedrealty.com
A real estate solutions provider specializing in high-quality life science and technology properties in key innovation markets in the US and UK |
398 | |||
| 45 |
Gold Star Foodsgoldstarfoods.com
A leading provider of wholesome food supporting K-12 School Nutrition Programs with supply systems and personalized customer service for millions of students daily |
367 | |||
| 46 |
Glu Mobileea.com
A leading developer and publisher of mobile games, specializing in creating top-grossing and award-winning original and licensed titles for worldwide platforms |
365 | |||
| 47 |
HealthComppersonifyhealth.com
HealthComp is a leading third-party administrator specializing in providing customizable healthcare solutions, including medical, dental, vision, COBRA, and other benefits |
364 | |||
| 48 |
Diamond Foods, LLCdiamondnuts.com
A California-based company with a 100+ year history of providing high-quality nuts for family recipes, now focusing on plant-based products |
364 | |||
| 49 |
Careismatic Brandscareismatic.com
Designs, manufactures, and sells a global portfolio of medical uniforms and healthcare apparel brands through various business-to-business, e-commerce, and direct-to-consumer channels. |
361 | |||
| 50 |
Evergreenevergreensg.com
Private-equity backed holding company acquiring and holding services and software companies, empowering management teams for growth and stewarding legacies |
351 | |||
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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 15, 2026.
More company lists in California
- The largest companies in California 15,256
- Multinational companies in California 2,587
- SaaS companies in California 1,854
- Software Development companies in California 1,649
- AI companies in California 1,296
- Companies with in-house R&D in California 1,272
- Manufacturers in California 1,065
- Hardware manufacturers in California 984
- IT Services and IT Consulting companies in California 968
- Education providers in California 950
- Subscription businesses in California 939
- Venture capital and private equity firms in California 917
- Professional services firms in California 880
- Companies with a mobile app in California 827
- Retail chains in California 802
- IT services companies in California 796
- Venture Capital and Private Equity Principals companies in California 731
- Financial services firms in California 711
- Financial Services companies in California 642
- Healthcare providers in California 569
- AI-native companies in California 561
- Hospitals and Health Care companies in California 555
- Consulting firms in California 551
- Public sector organisations in California 536
The same list elsewhere in United States
- Private equity-backed companies in the United States 579
- Private equity-backed companies in Texas 75
- Private equity-backed companies in New York State 45
- Private equity-backed companies in Florida 44
- Private equity-backed companies in Illinois 33
- Private equity-backed companies in Massachusetts 29
- Private equity-backed companies in North Carolina 25
- Private equity-backed companies in New York 39