| # | Company | Employees |
|---|---|---|
| 1 |
Electronic Arts (EA)ea.com
Develops and publishes interactive entertainment and video games, fostering a global community with creativity and player engagement. |
23,703 |
| 2 |
Equinixequinix.com
A global digital infrastructure company empowering businesses to access foundational infrastructure, partners, and possibilities to accelerate advantage and multiply value |
14,710 |
| 3 |
Check Point Softwarecheckpoint.com
Leading provider of cyber security solutions globally, protecting over 100,000 customers with industry-leading malware, ransomware, and threat prevention Specializes in multi-level security architecture |
8,546 |
| 4 | 4,372 | |
| 5 |
Bon Appรฉtit Management Companybamco.com
Providing on-site foodservice management with scratch cooking, sustainable sourcing, and environmentally responsible practices for corporations and universities. |
4,234 |
| 6 |
County of San Mateosmcgov.org
provides health, welfare, and local government services for unincorporated areas, governed by elected officials and a Board of Supervisors |
3,904 |
| 7 |
Poshmarkposhmark.com
A leading fashion resale marketplace connecting buyers and sellers, empowering them to turn their closets into thriving businesses |
2,936 |
| 8 |
Informaticainformatica.com
AI-powered enterprise cloud data management platform providing integrated solutions to connect, manage, and unify data across hybrid and multi-cloud environments for businesses. |
2,722 |
| 9 |
i2c Inc.i2cinc.com
Provides flexible, secure, and reliable global banking and payment solutions enabling clients to create and manage credit, debit, and prepaid programs. |
1,828 |
| 10 |
Personal Capitalpersonalcapital.com
A financial services company offering online tools and personalized wealth management advice for holistic planning, risk management, and after-tax returns |
1,782 |
| 11 | 1,642 | |
| 12 |
Model Nmodeln.com
Provides intelligent platform, technology, data, analytics, expert services for revenue optimization, compliance, pricing, incentives, contracts in pharma, medtech, high-tech. |
1,497 |
| 13 |
GoFundMegofundme.com
A platform empowering individuals to raise funds for causes they care about, connecting a community of 200 million donors worldwide |
1,290 |
| 14 |
PubMaticpubmatic.com
Independent technology company empowering digital content creators to control inventory access, boost monetization, and optimize ad campaigns across formats and devices |
1,243 |
| 15 |
Revolution Medicinesrevmed.com
This company discovers and develops new drugs for cancer by leveraging natural products and evolutionary insights to target frontier oncology |
1,216 |
| 16 |
Snorkel AIsnorkel.ai
Develops programmatic data tools and expertise to accelerate creation and deployment of specialized AI models for unique workloads. |
1,208 |
| 17 |
Equinix EMEAequinix.co.uk
Enabling digital leaders to access and interconnect essential infrastructure, scale with agility, accelerate digital services, and deliver world-class experiences |
1,124 |
| 18 | 1,108 | |
| 19 |
Rocketship Public Schoolsrocketshipschools.org
Rocketship Public Schools is a non-profit network of public elementary charter schools dedicated to propelling student achievement and transforming underserved communities |
1,067 |
| 20 |
Zazzlezazzle.com
Marketplace for custom products with designers selling art and makers showcasing customizable items, using proprietary technology to visualize final products |
1,024 |
| 21 |
Solacesolace.health
A marketplace connecting individuals with health advocates to empower them in navigating and taking control of their personal health decisions |
1,008 |
| 22 | 905 | |
| 23 |
Sumo Logicsumologic.com
Unifies critical security and operational data through an Intelligent Operations Platform to help digital teams detect, investigate, and resolve modern cybersecurity and cloud challenges. |
841 |
| 24 |
Corcept Therapeuticscorcept.com
Leading the research and development of cortisol modulation for treating serious diseases through innovative glucocorticoid receptor antagonists and groundbreaking treatments |
787 |
| 25 |
Celigoceligo.com
Platform enabling IT and business teams to automate common and custom business processes, enhancing organizational agility and innovation speed. |
787 |
| 26 |
Gunderson Dettmergunder.com
Legal services specializing in venture capital, growth equity, and innovative companies, supporting clients from startup to public stages. |
757 |
| 27 |
Liftoff Mobileliftoff.ai
A leading growth acceleration platform for the mobile industry, supporting advertisers, publishers, and game developers in scaling revenue growth worldwide |
726 |
| 28 | 678 | |
| 29 |
Redwood City School Districtrcsdk8.net
Innovative and award-winning school district serving 6,400 students in grades PreK-8 with interactive learning approaches for high school and college readiness |
656 |
| 30 |
Alationalation.com
A leader in enterprise data intelligence solutions, enabling self-service analytics, cloud transformation, and data governance for Fortune 100 companies |
616 |
| 31 |
Delphixdelphix.com
The company specializes in DevOps test data management, providing automation for data security and rapid deployment of test data to accelerate application releases |
591 |
| 32 |
Equinix Asia-Pacificequinix.hk
A global digital infrastructure company that enables businesses to connect and scale with agility, access partners, launch services, and deliver world-class experiences |
574 |
| 33 |
Zลซmridezum.com
Revolutionizing student transportation by managing vehicles, drivers, passengers, and rides on a single platform to improve the school transportation system |
566 |
| 34 |
Simpplrsimpplr.com
Modern intranet platform using AI to enhance employee engagement and productivity for global brands, headquartered in Silicon Valley, CA |
539 |
| 35 |
Carboncarbon3d.com
Rapidly design, develop, and scale production of better products using integrated materials, software, and 3D printers, accelerating market delivery. |
522 |
| 36 |
Caรฑada Collegecanadacollege.edu
A leading educational institution in San Mateo County offering a wide range of certificate, degree, and transfer programs with student support services |
516 |
| 37 |
Chan Zuckerberg Initiativechanzuckerberg.com
A mission-driven organization collaborating with communities to address societal challenges, prioritize equity, and create a more inclusive and healthy future for all |
514 |
| 38 | 506 | |
| 39 | 477 | |
| 40 |
Impossible Foodsimpossiblefoods.com
This company is revolutionizing the global food industry by creating animal-free meat, dairy, and fish products using innovative plant-based ingredients |
471 |
| 41 |
Biohubczbiohub.org
A nonprofit research network pursuing long-term scientific challenges by understanding disease mechanisms, developing new technologies, and collaborating with leading academic institutions |
467 |
| 42 |
City of Redwood Cityredwoodcity.org
A city in Silicon Valley with a vibrant downtown, an active deep water port, and a focus on community building, history, and job/volunteer opportunities |
467 |
| 43 |
IMVUabout.imvu.com
The company operates the world's largest Web3 social metaverse, allowing users to customize avatars, connect with others, and engage in a peer-to-peer economy |
467 |
| 44 |
Prenuvoprenuvo.com
A health tech company specializing in whole body MRI screening for early detection of cancer and other diseases using cutting-edge technology and AI analysis |
462 |
| 45 |
Envestnet | Yodlee Indiayodlee.com
Leading data aggregation and analytics platform. Powers cloud-based innovation for digital financial services, transforming speed and delivery of financial innovation, improving digital customer experiences. |
460 |
| 46 |
Salebuildzdperformancemarketing.com
Salesify provides B2B demand generation services, including custom contact lists, lead nurturing campaigns, appointment setting, and CRM database cleansing |
426 |
| 47 | 417 | |
| 48 |
Agiloftagiloft.com
It provides contract lifecycle management software that enhances efficiency in legal, procurement, and sales operations while reducing compliance risks. |
403 |
| 49 | 369 | |
| 50 |
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 |
| 51 |
San Mateo County Office of Educationsmcoe.org
A county office providing resources to support 23 school districts, eliminating barriers to learning and offering instructional, business, and consulting services |
356 |
| 52 |
Observe.AIobserve.ai
Delivers AI Agents platform for customer experience, deploying specialized AI agents that autonomously execute work across the full CX lifecycle. |
345 |
| 53 |
Ali Express portalsximim.com
This company offers online shopping for a variety of products including electronics, fashion, phone accessories, toys, home & garden items, appliances, and tools |
335 |
| 54 |
BigPandabigpanda.io
BigPanda leverages AIOps to transform IT noise into automated actions, preventing service outages and improving incident management for top brands worldwide |
333 |
| 55 |
Balsam Brandsbalsambrands.com
Global eCommerce retailer specializing in holiday and home decor, focused on creating joy, empowering teams, and giving back to communities |
323 |
| 56 |
Genomic Healthexactsciences.com
Leading provider of genomic-based diagnostic tests optimizing cancer care with Oncotype IQยฎ Genomic Intelligence Platform for treatment planning and personalized cancer diagnosis |
319 |
| 57 |
Summit Public Schoolssummitps.org
A leading charter public school network in California and Washington, equipping students for college and successful, fulfilled lives through personalized, project-based learning |
310 |
| 58 |
Anomalianomali.com
Delivers an intelligence-native SOC platform, unifying a hyperscale security data lake, threat intelligence, and AI-driven automation for modern security operations. |
305 |
| 59 |
Character.AIbeta.character.ai
Platform for creating AI chatbots, enabling immersive conversations, fostering creativity, imagination, and a vibrant community of creators. |
286 |
| 60 |
Legion Technologieslegion.co
Legion Technologies offers a workforce management platform that maximizes labor efficiency and employee engagement with intelligent automation and proven ROI |
267 |
| 61 |
Synacksynack.com
Leading human-led, AI-powered penetration testing as a service, transforming offensive security to proactively reduce risk, ensure compliance, and defend against cyber threats. |
246 |
| 62 |
Codexis, Inc.codexis.com
Enzyme engineering company utilizing proprietary platform to develop high-performance enzymes for pharmaceuticals, nucleic acid synthesis, and RNAi therapeutics manufacturing |
240 |
| 63 | 236 | |
| 64 | 217 | |
| 65 |
Coherus Oncologycoherus.com
development and commercialization of next-generation PD-1 inhibitor and pipeline candidates targeting multiple cancers with proprietary combination strategies |
213 |
| 66 |
Kariuskariusdx.com
The company uses genomics and AI to map a patient's microbial landscape from a blood sample for rapid infectious disease treatment decisions |
209 |
| 67 |
Samarasamara.com
Innovative company building homes in the Bay Area to improve lives and inspire people to dream bigger for a brighter future |
208 |
| 68 |
Owler - A Meltwater Offeringowler.com
It provides businesses with competitive insights and real-time alerts, helping them stay informed about important companies and market trends. |
192 |
| 69 |
Master Of Code Globalmasterofcode.com
Development of custom AI-powered digital solutions including web, mobile, chat, and voice applications with strong security and ongoing support. |
182 |
| 70 |
Dignity Health Sequoia Hospitaldignityhealth.org
Accredited not-for-profit community hospital providing innovative health care, including advanced cardiac care, joint replacement, birth center services, emergency care, and cutting-edge technology |
178 |
| 71 |
SecPodsecpod.com
Offers proactive cybersecurity solutions including cloud-native application protection and continuous vulnerability management to prevent cyberattacks and secure computing infrastructure. |
178 |
| 72 |
Appdomeappdome.com
Protects mobile apps, APIs, and digital identities from fraud, bots, malware, and account takeover attacks using automated, AI-powered defenses. |
175 |
| 73 |
Galvanizegalvanizetx.com
Innovative company developing life-changing healthcare solutions at the intersection of biology, engineering, and care delivery for patients and doctors |
171 |
| 74 |
NimbleRxnimblerx.com
A health technology company empowering pharmacies to improve access to medications, making managing health easier for happier, fuller lives |
170 |
| 75 |
Amobeenexxen.com
A tech company rebranded as Nexxen offering DSP, SSP, and ad server solutions for a more seamless experience and endless possibilities |
169 |
| 76 |
Amoroso Constructionsjamoroso.com
A leading general contractor in California with a focus on public works, providing strategic and creative solutions for clients' specific needs |
165 |
| 77 |
Ropers, Majeski, Kohn & Bentleyropers.com
A global law firm providing high-quality legal advice for over 70 years, offering solutions for complex business challenges with a client-focused approach |
164 |
| 78 |
Wider Circlewidercircle.com
This company partners with health plans to provide community care programs connecting vulnerable populations, reducing hospitalizations, improving health outcomes, and lessening social isolation |
159 |
| 79 |
K&L Wine Merchantsklwines.com
A California-based company offers a wide selection of wines, spirits, and beer through retail shops, online auctions, and educational content |
158 |
| 80 |
Spaceliftspacelift.io
A platform that manages infrastructure-as-code for various tools including Terraform, CloudFormation, Kubernetes, and Ansible |
157 |
| 81 |
Ambient.aiambient.ai
AI and computer vision enhance existing camera systems for continuous monitoring, automating security response to prevent incidents proactively. |
156 |
| 82 |
BigBand Networksbigbandnet.com
BigBand Networks provides innovative network solutions to broadband service providers for delivering, managing, and monetizing video content across multiple platforms |
156 |
| 83 |
Alder Graduate School of Educationaldergse.edu
A 1-year teacher preparation program offering Master's degrees, teaching credentials, and mentorship to create exceptional educators who reflect diverse communities |
155 |
| 84 |
ABS-CBN Global Ltd.corporate.abs-cbn.com
ABS-CBN Global Ltd is a California-based broadcast media company specializing in entertainment content distribution and broadcasting services |
154 |
| 85 | 152 | |
| 86 |
Zillizzilliz.com
A leading vector database company enabling easy creation of AI applications, simplifying data management, and making vector databases accessible to all organizations |
147 |
| 87 | 146 | |
| 88 |
InsideMaps Incinsidemaps.com
This company creates 3D models of homes from photos for real estate industry and beyond, allowing users to easily visualize and customize interiors |
146 |
| 89 |
TigerGraphtigergraph.com
Advanced analytics and machine learning platform utilizing a distributed native graph database for applications such as fraud detection, customer 360, IoT, and network analysis |
143 |
| 90 | 128 | |
| 91 |
DataWalkdatawalk.com
Provides data analysis software for Enterprises and government agencies to analyze data from multiple sources and uncover patterns for various investigative and analytical purposes |
125 |
| 92 |
Energy Experts Internationaleeintl.com
A leader in energy management consulting, offering creative solutions for clients in natural gas, electric power, and oil industries globally |
99 |
| 93 | 84 | |
| 94 |
Twingatetwingate.com
The company provides a security platform that eliminates the need for VPNs, simplifying secure access to networks, infrastructure, and SaaS apps |
84 |
| 95 |
Versantactian.com
Versant, now part of Actian Corporation, provides data management software for developers to handle complex information with high performance and availability |
74 |
| 96 |
Citrine Informaticscitrine.io
An award-winning materials informatics platform using AI to accelerate materials development, optimize product portfolios, and preserve research IP for industry leaders globally |
71 |
| 97 |
xiQ, Inc.xiqinc.com
AI-powered sales and marketing platform using behavioral psychology and generative AI to personalize outreach, predict personality types, and automate hyper-personalized communication campaigns. |
62 |
| 98 |
Portfolio Tportfoliot.com
A global technology venture studio focusing on creating disruptive solutions across various industries and spearheading cognitive technologies for positive impact |
62 |
| 99 |
Array Labsarraylabs.io
Developing next-generation earth observation satellites to provide high quality 3D imagery in near-real time for various industries |
51 |
| 100 |
Sozo Venturessozoventures.com
Venture capital firm supporting global expansion of IT ventures in advanced data technologies, e-commerce, fintech, healthcare IT, and other emerging sectors |
42 |
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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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