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The 100 largest companies in San Mateo

Tamtam tracks 147 companies headquartered in San Mateo. This list ranks the 100 largest by number of employees on LinkedIn, led by Sony Interactive Entertainment, Franklin Templeton and Roblox. Their median headcount is 466. Half of them were founded in 2007 or later.

๐Ÿ‡บ๐Ÿ‡ธ San Mateo100 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Sony Interactive Entertainmentsonyinteractive.com

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 ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 13,000 n/a
2
Franklin Templetonfranklinresources.com

Global investment management organization offering products and services through Franklin Templeton, emphasizing risks, localized information, and disclaimers about third-party sites

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 10,215 1947
3
Robloxcareers.roblox.com

A platform where millions of creators build immersive virtual experiences for people to connect, learn, work, play, and socialize together

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 9,978 2004
4
Freshworksfreshworks.com

It provides AI-driven service software aimed at enhancing customer and employee experiences for over 68,000 organizations globally.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 7,557 2010
5
Guidewire Softwareguidewire.com

Cloud platform for P&C insurers providing core systems, data analytics, and artificial intelligence to support digital innovation and efficient business growth globally.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 4,303 2001
6
Oportunoportun.com

This fintech company provides intelligent borrowing, savings, and budgeting tools to empower members in achieving their financial goals

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 3,785 2005
7
San Mateo County Community College Districtsmccd.edu

The company operates three colleges in San Mateo County, providing community college education with a wide range of programs and services

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 2,810 1922
8
Verkadaverkada.com

Transforms how organizations protect people and places. Provides an integrated, AI-powered platform unifying video, access control, sensors, alarms, intercoms, and workplace tools.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 2,727 2016
9
Rakuten Internationalrakuteninternational.com

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 ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 2,170 n/a
10
SolarCitysolarcity.com

A company acquired by Tesla in 2016, now called Tesla Energy Operations, Inc focusing on accelerating the transition to sustainable energy

Renewable Energy Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 2,063 2006
11
Upstartupstart.com

AI-powered lending platform connecting consumers with banks and credit unions, automating loan approvals and offering various credit products.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,921 2012
12
MarketStar India (Regalix)linkedin.com

MarketStar offers comprehensive growth management solutions, including digital marketing, customer success, revenue operations, sales, and advertising services, with a global reach

Outsourcing and Offshoring Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,871 2005
13
Essex Property Trustessexapartmenthomes.com

A real estate investment trust that acquires, develops, and manages multifamily residential properties in coastal regions, prioritizing innovation, value, and employee well-being

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,700 n/a
14
Sequoiasequoia.com

Sequoia specializes in total people investment, helping companies optimize outcomes through comprehensive rewards, including compensation, benefits, wellbeing, HR, payroll, and business protection

Business Consulting and Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,607 2001
15
Swing Educationswingeducation.com

Connecting schools with high-quality substitute teachers, making it easy to find the right substitute at the right time to improve the education experience

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,454 2015
16
Darwinboxdarwinbox.com

Enabled by AI and ML, we provide a modern HCM suite for automating HR processes, generating insights, and fostering better workplaces worldwide

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,401 2015
17
GoProgopro.com

GoPro creates innovative products that help people capture and share their passions in immersive ways, promoting positivity, diversity, and inclusion worldwide

Computers and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,383 2002
18
SurveyMonkeysurveymonkey.com

A global leader in online surveys and forms, providing real-time AI-powered insights to help people make decisions with speed and confidence Amplifying individual voices

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,379 n/a
19
Kore.aikore.ai

Provides AI platform and no-code tools for enterprise-scale automation, custom development, and AI strategy across diverse industries worldwide.

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,264 2013
20
Willis Towers Watson's OneExchangewillistowerswatson.com

A leading global advisory and solutions company operating a private exchange, offering integrated workforce solutions for employers in the health insurance industry

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,258 2006
21
College of San Mateocollegeofsanmateo.edu

A higher education institution offering diverse programs for university transfer, career preparation, professional development, and personal enrichment to a diverse student body

Higher Education ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,197 1922
22
Legg Mason (Acquired by Franklin Templeton)franklintempleton.com

Legg Mason merged with Franklin Templeton, consolidating investment management services and client resources under one unified firm.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,119 n/a
23
Neo4jneo4j.com

A leader in graph databases and analytics, helping organizations uncover hidden relationships and patterns in billions of data connections for innovative problem-solving

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,031 2007
24
Skydioskydio.com

A US-based company specializing in autonomous drones with AI and computer vision technology for various industries, including public safety and utility providers

Robotics Engineering ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 1,026 2014
25
Tilelife360.com

This company uses technology to solve everyday problems and make people's lives easier, aiming to help them find their best lives

Consumer Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 996 n/a
26
Gymboree Play & Musicgymboreeclasses.com

For over 45 years, this company has been fostering creativity and confidence in children ages 0-5 through expert-designed educational play activities

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 904 1976
27
Rakuten Advertisingrakutenadvertising.com

Innovative marketing solutions connecting brands with engaged audiences globally, creating tailored ad experiences across various channels to drive results

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 878 1996
28
KAYUkayudesign.com

A company founded to preserve indigenous crafts, provide artisans with fair wages, and create sustainable, high-quality personal and home accessories

Retail Apparel and Fashion ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 869 2011
29
Yellow.aiyellow.ai

Provides autonomous AI agents for enterprises to automate customer service across voice, chat, and multimodal channels with real-time workflow orchestration.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 862 2016
30
San Mateo Medical Centersmchealth.org

Integrated hospital and clinic system in the Bay Area focused on providing excellent healthcare for all patients, including those facing social, environmental, and economic challenges

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 858 1923
31
Life360life360.com

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 ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 856 n/a
32
Folio3 Softwarefolio3.com

California-based software development company specializing in Enterprise Apps, Mobile Apps, Websites, and Social Media Platforms for Fortune 500 companies, startups, and prestigious brands worldwide

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 832 2005
33
Farmer's Business Network, Inc.fbn.com

An independent agricultural tech platform and farmer network providing data-driven insights, e-commerce services, and support to help farmers succeed sustainably

Farming ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 745 2014
34
call center group

An independent boutique search firm specializing in recruiting for Call Center, Customer Service, and CRM roles for various clients

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 680 n/a
35
San Mateo-Foster City School Districtsmfcsd.net

Public school district providing education and inspiration to students, fostering integrity, leadership, and joyful learning experiences.

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 668 n/a
36
Freedom Financial Networkfreedomfinancialnetwork.com

A digital personal finance company focused on helping people, previously known as Freedom Financial Network Follow their new page for updates

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 632 2003
37
FalconXfalconx.io

Institutional prime brokerage providing twenty-four seven global digital asset liquidity and capital solutions through proprietary technology across the entire trade lifecycle.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 630 2018
38
WageWorkswageworks.com

A leader in administering Consumer-Directed Benefits, including pre-tax spending accounts, commuter benefits, wellness programs, COBRA, and other employee benefits

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 627 2000
39
Helixhelix.com

Helix is a top company specializing in population genomics and viral surveillance, aiding health systems and life science companies in integrating genomic data for patient care and public health

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 599 2015
40
San Mateo Union High School Districtsmuhsd.org

The San Mateo Union High School District offers award-winning high school and adult education programs to residents of several cities

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 598 n/a
41
Talendtalend.com

A global leader in data integration and management, providing solutions to unify, govern, and analyze data across different cloud environments

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 571 2005
42
California Casualtycalcas.jobs

Provider of high-quality insurance coverage and service at competitive prices, tailored for educators, law enforcement, and public safety officers Dedicated to community support and environmental responsibility

Insurance ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 560 1914
43
Rakuten Vikiviki.com

A global ecommerce and entertainment company offering a wide range of services, including streaming, e-commerce, banking, and online marketing solutions

Entertainment Providers ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 550 2010
44
Gooderagoodera.com

executes hosted volunteering experiences globally, offering tailored in-person, virtual, and hybrid programs to align people with purpose and social causes.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 529 2014
45
Apttusconga.com

Global leader in commercial operations transformation, simplifying and automating quotes, contracts, and documents for businesses to create agile customer experiences and streamline revenue processes

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 519 2006
46
Prometheus Real Estate Groupprometheusapartments.com

A real estate company with over 13,000 apartments in the San Francisco Bay Area, Silicon Valley, Portland, and Seattle regions, focusing on quality and sustainability

Real Estate ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 511 1965
47
Augmentum, Inc.augmentum.com

Augmentum specializes in enterprise digital transformation through product creation, consulting, and software services, focusing on human-centered strategies and leading-edge technologies

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 491 2003
48
Ready Setreadyset.co

Digital agency specializing in search and social, focusing on creative excellence Maximizing customer acquisition through optimized ads, landing pages, and product pages

Advertising Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 478 2019
49
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

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 473 2002
50
Alpacaalpaca.markets

US-headquartered self-clearing broker-dealer, global leader in brokerage infrastructure APIs. Provides access to stocks, ETFs, options, fixed income, crypto.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 466 2017
51
Rakuten Rewardsrakuten.com

An online shopping platform offering Cash Back, deals, and rewards to members, with a focus on innovation, teamwork, and rapid growth

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 462 1998
52
IBM DemandTec Solutionsdemandtec.com

Cloud-based network offering merchandising and marketing solutions to retailers and consumer products companies, driving sales, loyalty, and profitability through data-driven insights and collaboration

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 456 1999
53
Sledgehammer Gamessledgehammergames.com

A global game development company founded in 2009, creating award-winning titles in the Call of Duty franchise with a focus on innovation and evolution

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 455 2009
54
Motif, Inc.ttec.com

Global customer engagement services company providing consulting, analytics, technology, and operations to help brands acquire, serve, retain, and grow profitable customer relationships

Outsourcing and Offshoring Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 449 1982
55
Altiostar, A Rakuten Symphony Companysymphony.rakuten.com

Cloud-native open RAN telco infrastructure platform provider with global operations offering services and solutions in Japan, US, Europe, Singapore, India, and MEA region

Wireless Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 443 2021
56
Wiser Solutions, Inc.wiser.com

It provides end-to-end solutions for brands and retailers, focusing on market analysis, price management, shelf intelligence, and retail execution.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 432 2014
57
LogiGear Corporationlogigear.com

A global technology company offering comprehensive digital product services, including software development, testing, ERP, and CRM practices, guided by core values

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 419 1994
58
STPLstpl.biz

An offshore software development company providing innovative solutions to global clientele, focusing on quality, risk mitigation, and customer-centric IT services

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 414 2004
59
Truebeck Constructiontruebeck.com

Specializing in technical building, complex projects, and interiors, this industry-leading general contractor delivers high-performance buildings with predictable costs and value

Construction ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 407 2007
60
Mathematics Tutor

The company provides retail services focused on mathematics tutoring, with a base of operation in Tanjung Malim

Retail ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 401 n/a
61
Infovityinfovity.com

Specializing in Oracle solutions for various industries, we accelerate implementation, streamline operations, and offer unique solutions and extensions for seamless transition to Oracle Cloud

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 398 2008
62
Lohikacapgemini.com

Specializing in premium software development and consulting, the company serves top tech firms with breakthrough innovations, focusing on R&D and long-term partnerships

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 395 n/a
63
Photomathphotomath.com

An EdTech company with a popular math learning app using advanced machine learning to solve problems and provide step-by-step explanations globally

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 394 n/a
64
Backblazebackblaze.com

This company offers affordable S3-compatible B2 Cloud Storage at 1/5 the price of S3, along with computer backup services starting at $9/month

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 369 2007
65
Narvarcorp.narvar.com

Narvar is a post-purchase platform that helps brands engage with consumers beyond the buy button, driving loyalty and increasing lifetime value

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 366 2012
66
DataPuredatapure.ai

DataPure provides end-to-end solutions combining technology and human-in-the-loop to help AI companies build, test, deploy, and scale automation quickly

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 356 n/a
67
Presto Phoenix, Inc.presto.com

This company offers AI and automation solutions to restaurants to reduce costs, increase productivity, boost revenue, and enhance guest experience

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 350 2008
68
Newfront (Formerly ABD)theabdteam.com

Company provides risk management, insurance brokerage, human resources, and retirement consulting services with innovative solutions for clients of all sizes and industries globally

Insurance ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 348 2012
69
Fireworkfirework.com

An ecommerce tech startup that enables brands to create interactive, shoppable, and short video experiences on their websites for personalized engagement

Marketing Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 347 2017
70
Mobius 365 Knowledge Services, Inc.mobius365.com

A technology and data services company specializing in mining, collecting, verifying, processing, and delivering public business information for leading publishers

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 340 1999
71
Portfoliaportfolia.co

Community of investors backing companies in health, aging, longevity, sustainability, education, and diversity, driving change and creating wealth through collective investments.

Consumer Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 339 2015
72
Access Healthmyaccesshealth.com

Access Health offers primary and urgent healthcare services in the Bay Area, including treatment for chronic conditions, physical exams, vaccinations, and urgent care for injuries and illnesses

Medical Practices ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 327 2010
73
SnapLogicsnaplogic.com

The company helps enterprises simplify technology stacks and drive business results through AI-driven integration, automation, and data democratization for faster innovation and value delivery

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 317 2006
74
Kiteworkskiteworks.com

The company provides a platform for organizations to manage risk and ensure regulatory compliance for sensitive content sharing and communication

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 315 1999
75
Sendbirdsendbird.com

This company provides a communications API platform used by leading apps to enhance customer satisfaction with in-app chat, notifications, voice, video, and livestreams

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 300 2013
76
Vyondvyond.com

Vyond is an agile video creation studio that enables businesses to quickly create engaging videos for stakeholders, driving positive business outcomes and ROI

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 278 2007
77
Talviewtalview.com

Talview revolutionizes interview and exam processes worldwide with advanced AI technology, ensuring secure, efficient, and fair remote interviewing and proctoring

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 277 2017
78
Netominetomi.com

Netomi provides AI-driven customer service solutions for companies, delivering higher quality experiences, faster resolution rates, and increased customer satisfaction while reducing costs

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 260 2016
79
B-Stockbstock.com

Global auction platform specializing in liquidation inventory, connecting sellers with buyers to facilitate controlled transactions, fair prices, and faster sales cycles

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 252 2008
80
Arkose Labsarkoselabs.com

Offers a platform defending against human and AI-powered fraud, scraping, and bot attacks, protecting users, revenue, and reputation for major enterprises.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 249 2016
81
PAR Punchhpunchh.com

Leading loyalty, offers, and engagement platform for restaurants, groceries, retailers, and convenience stores, helping brands create data-driven loyalty experiences

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 248 2011
82
NextLabsnextlabs.com

Provider of zero trust data-centric security software for enterprises to protect sensitive data, enforce access controls, and ensure regulatory compliance on premise or in the cloud

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 209 2004
83
DaVinci Commercedavincicommerce.ai

Uses AI to personalize commerce marketing ads with shopper data, delivering bespoke messaging and offers to individual consumers across all media and e-commerce platforms.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 194 2007
84
Tuition.iotuition.io

Leading technology platform enabling global employers to offer student loan payments as a benefit, managing $2 billion in loans, reducing delinquency rates, and attracting top talent

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 185 2011
85
Zinierzinier.com

AI-powered platform automating field service operations, workforce management, and asset maintenance for industries like telecom, utilities, and manufacturing.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 179 2018
86
Hercules Capitalhtgc.com

Specialty finance company offering senior secured venture growth loans to high-growth, innovative venture capital-backed companies in technology, life sciences, and sustainable industries

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 176 2003
87
OneSignalonesignal.com

Leading customer messaging & engagement solution delivering email, mobile & web push notifications, in-app messaging, and SMS to help businesses connect with customers

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 171 2014
88
FCE Benefit Administrators, Inc.fcebenefits.com

The company specializes in providing cost-effective fringe benefit plans to government contractors, ensuring compliance with various regulations such as SCA/DBRA and PPACA

Insurance ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 171 1988
89
Vyncavyncacare.com

A healthcare partner providing personalized care for individuals with advanced chronic disease through in-home, phone, or video visits covered by major insurance plans

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 170 2014
90
Slickdealsslickdeals.net

A community-driven platform that helps shoppers find the best deals by sharing vetted products at the best prices from top retailers

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 168 1999
91
Peninsula Family Servicelinktr.ee

The company focuses on strengthening the community by providing early learning programs, financial literacy education, and wellness support to families and vulnerable individuals

Non-profit Organizations ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 164 1950
92
31st Unionthirtyfirstunion.com

A global studio focused on creating engaging entertainment, prioritizing player experience, fostering inclusivity, and benefiting from collaboration with Take-Two Interactive

Entertainment Providers ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 161 2019
93
Dolcera Corporationdolcera.com

Innovative company using AI and ChatGPT to revolutionize intellectual property management, offering advanced tools for patent drafting, analysis, and research

Information Services ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 157 2004
94
Mission Hospice & Home Caremissionhospice.org

A nonprofit organization providing personalized end-of-life care and education to patients and families in the San Francisco Peninsula and South Bay

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 155 1979
95
St. Gregory Schoolstgregs-sanmateo.org

Educational institution serving students from kindergarten to 8th grade in San Mateo, CA, providing elementary and middle school education

Primary and Secondary Education ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 154 n/a
96
Remotebaseremotebase.com

Connecting top 1% global tech talent with forward-thinking startups to build remote engineering teams swiftly and drive exceptional outcomes

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 152 2020
97
Samaritan House of San Mateo Countysamaritanhousesanmateo.org

A leading organization in San Mateo County providing essential services and personalized support to the working poor, fighting poverty and lifting lives

Non-profit Organizations ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 151 1974
98
CAMICOcamico.com

A company founded by CPAs providing Accountantsโ€™ Professional Liability Insurance with comprehensive coverage and risk management services to reduce malpractice risk exposure

Insurance ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 150 1986
99
WhoKnowswkgrowthservices.com

A B2B lead generation platform for startups with AI-enriched prospect data, omni-channel campaign testing, agile marketing services, and startup-friendly pricing

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 149 2012
100
Orchestradeorchestrade.com

Comprehensive cross-asset platform for post-trade portfolio and risk management, serving banks, hedge funds, and commodity traders globally.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ San Mateo 143 2009

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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 Oct 24, 2026.

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