| # | Company | Employees |
|---|---|---|
| 1 |
SpaceXspacex.com
A company specializing in designing, manufacturing, and launching advanced rockets and spacecraft with a goal of making life multiplanetary |
20,008 |
| 2 |
Stripestripe.com
Financial infrastructure platform enabling businesses to accept payments, increase revenue, and explore new opportunities to grow in San Francisco and Dublin |
16,031 |
| 3 |
Databricksdatabricks.com
It provides a Data Intelligence Platform for organizations to manage their data effectively and leverage AI for better decision-making. |
15,896 |
| 4 |
Pinterestpinterest.com
It is a visual inspiration platform with 482 million monthly active users, helping people search, save, and shop ideas. |
13,766 |
| 5 |
Remoteremote.com
Comprehensive HR and payroll platform enabling companies to hire, manage, and pay employees worldwide with compliance and local expertise. |
12,042 |
| 6 | 11,656 | |
| 7 |
Mediumjob-boards.greenhouse.io
It is a storytelling platform that values great writing, empowers readers, and operates on a subscription model without relying on ads. |
9,929 |
| 8 |
Handshakejoinhandshake.com
career platform connecting Gen Z students, alumni, employers, and educators to facilitate job discovery and workforce building. |
9,901 |
| 9 | 9,873 | |
| 10 |
OpenAIopenai.com
An AI research and deployment company focused on creating safe and beneficial general-purpose artificial intelligence for the benefit of humanity |
9,268 |
| 11 |
VIPKidvipkid.com
Connecting children globally with top teachers for real-time online English immersion. Personalized learning and sparking curiosity is the aim. |
9,039 |
| 12 |
Anduril Industriesanduril.com
Transforms military capabilities through advanced technology and rapid R&D, delivering off-the-shelf products and path-making systems to support warfighters and allied defense operations. |
8,658 |
| 13 |
Mercormercor.com
Utilizing AI technology, Mercor streamlines the hiring process by sourcing, assessing, and hiring talent seamlessly for businesses |
8,180 |
| 14 |
iMerit Technologyimerit.ai
A leading AI data solutions company providing high-quality data labeling technologies for machine learning applications across various industries |
8,052 |
| 15 |
Ripplingrippling.com
Workforce management system streamlining business operations by consolidating data and applications for payroll, IT, expenses, and more into one unified platform |
7,811 |
| 16 |
Cohesitycohesity.com
The company offers data protection and insights through a hyper-scale platform, AI-powered intelligence, zero trust security, third-party extensibility, and high customer satisfaction |
7,759 |
| 17 |
HackerOnehackerone.com
A global leader in human-powered security, leveraging human ingenuity and AI to find critical security flaws and reduce threat exposure |
7,165 |
| 18 |
Turingturing.com
Turing matches vetted remote developers with companies quickly using AI, disrupting traditional recruiting to create a Talent Cloud for elite careers |
6,973 |
| 19 |
Notionnotion.com
Combines product roadmaps, company wikis, and meeting notes into a single customizable workspace allowing teams to build and modify their own software tools. |
6,434 |
| 20 |
Driverdriver.xyz
A technology platform connecting cancer patients worldwide to treatment options and knowledge from leading cancer centers through a mobile app |
6,395 |
| 21 |
Rubrikrubrik.com
A company specializing in Zero Trust Data Security, offering solutions such as data protection, ransomware investigation, and application recovery to ensure operational resilience |
5,113 |
| 22 |
Elasticelastic.co
This company specializes in Enterprise Search, Observability, and Security solutions to enhance customer and employee experiences, ensure smooth application performance, and protect against cyber threats |
5,089 |
| 23 |
Discorddiscord.com
A communication platform founded in 2015, connecting users through voice, video, and text in diverse communities without selling ads or user data |
4,707 |
| 24 |
Automation Anywhereautomationanywhere.com
Provides agentic automation by combining goal-driven AI agents, RPA, APIs, and human expertise to orchestrate mission-critical enterprise workflows end-to-end, delivering measurable outcomes across various sectors. |
4,542 |
| 25 | 4,450 | |
| 26 | 4,350 | |
| 27 |
Restaurant365restaurant365.com
cloud-based platform for restaurant accounting, inventory, workforce management, payroll, and integrations to optimize operations and improve guest experiences |
3,986 |
| 28 |
Bugcrowdbugcrowd.com
Connects organizations with trusted hackers via an AI-powered platform to proactively protect digital assets from advanced threats before attacks occur, ensuring continuous security. |
3,740 |
| 29 | 3,733 | |
| 30 |
Confluentconfluent.io
Cloud-native platform enabling real-time data streams across organizations for digital customer experiences and immediate business operations via intelligent connective data tissue. |
3,452 |
| 31 |
GitLababout.gitlab.com
DevOps platform revolutionizing software development collaboration, speeding up production processes, reducing costs, and increasing developer productivity for global remote team |
3,411 |
| 32 | 3,402 | |
| 33 |
Netskopenetskope.com
Provides optimized access and real-time, context-based security for cloud and AI ecosystems, including agents, applications, tools, LLMs, people, devices, and data. |
3,395 |
| 34 |
SentinelOnesentinelone.com
Provides AI-powered cybersecurity platform, revolutionizing security operations with Endpoint Protection, SIEM, Cloud Security, Identity Threat Detection, and managed threat services. |
3,166 |
| 35 | 3,165 | |
| 36 |
Affirmaffirm.com
A technology-driven financial company offering transparent products to improve consumer lives, with a remote-first culture and offices in major cities |
3,110 |
| 37 |
Poshmarkposhmark.com
A leading fashion resale marketplace connecting buyers and sellers, empowering them to turn their closets into thriving businesses |
2,936 |
| 38 |
Lyra Healthlyrahealth.com
Provider of AI-driven mental health benefits and personalized support, connecting employees to exclusive providers and tools for recovery. |
2,872 |
| 39 |
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. |
2,727 |
| 40 |
SpotOnspoton.com
Empowering entrepreneurs with customizable software and payment technology to run their businesses their own way, supported by a dedicated team |
2,646 |
| 41 |
Gongvercel.app
Revenue intelligence platform centralizing customer data and automated workflows to provide business insights, helping professional sales teams optimize performance and increase wins. |
2,592 |
| 42 |
Vuorivuoriclothing.com
Premium performance apparel inspired by Coastal California lifestyle, integrating fitness, surf, sport, and art Breaking traditional activewear boundaries with new perspective |
2,556 |
| 43 | 2,502 | |
| 44 | 2,472 | |
| 45 |
HashiCorphashicorp.com
The company provides multi-cloud infrastructure automation products to help enterprises worldwide provision, secure, and run their critical applications in the cloud |
2,245 |
| 46 | 2,220 | |
| 47 |
Automatticautomattic.com
A global company with a distributed workforce, creating and supporting various digital platforms and services like WordPress, WooCommerce, and Jetpack |
2,152 |
| 48 |
SymphonyAIsymphonyai.com
SymphonyAI offers AI SaaS solutions to industries like retail, CPG, finance, manufacturing, media, and IT, boosting growth and productivity |
2,083 |
| 49 |
Upstartupstart.com
AI-powered lending platform connecting consumers with banks and credit unions, automating loan approvals and offering various credit products. |
1,921 |
| 50 | 1,888 | |
| 51 | 1,882 | |
| 52 |
iRhythm Technologies, Inc.irhythm.com
A digital health company using wearable biosensors and data analytics to detect, predict, and prevent disease, with a focus on patient care and innovation |
1,874 |
| 53 |
Fivetranfivetran.com
Centralizes data from SaaS applications and databases into cloud destinations for AI, ML, analytics, and operational workloads. |
1,868 |
| 54 |
Springboardspringboard.com
Empowering lifelong learning through personalized educational experiences, industry-guided projects, and mentor support for success in the evolving economy |
1,846 |
| 55 |
Arcarcboats.com
Innovative marine startup in LA developing high-performance electric boats, led by former rocket engineers, setting new industry standards and electrifying the marine industry |
1,828 |
| 56 |
Metropolis Technologiesmetropolis.io
Artificial intelligence company specializing in computer vision technology to simplify physical transactions, starting with reimagining parking and expanding to checkout-free experiences |
1,825 |
| 57 |
Thumbtackthumbtack.com
Platform connecting homeowners with local service professionals for repairs, maintenance, and home improvement projects across the U.S. |
1,783 |
| 58 | 1,781 | |
| 59 |
Superhumansprh.mn
Provides superpowers for mail, documents, and AI integration that function seamlessly across all applications and browser tabs. |
1,773 |
| 60 |
Harnessharness.io
Provides a software delivery platform with modules for continuous integration, delivery, feature flags, cloud cost management, security, and AI-driven development. |
1,722 |
| 61 |
Hinge Healthhingehealth.com
AI-driven musculoskeletal care combining wearable technology and expert clinicians to deliver personalized, evidence-based treatment improving outcomes and reducing costs. |
1,665 |
| 62 | 1,662 | |
| 63 |
Mercurymercury.com
Financial technology company offers banking services tailored for startups, including checking/savings accounts, debit/credit cards, wire transfers, treasury services, and community programs for support and resources |
1,659 |
| 64 |
6sense6sense.com
Predicts potential buyers through AI, recommends engagement actions for anonymous buying teams, and provides tools to create, manage, and convert high-quality pipeline. |
1,603 |
| 65 |
Applied Intuitionappliedintuition.com
Vehicle software supplier accelerating safe and intelligent machines globally through simulation and validation platforms for automotive, trucking, and construction industries Headquarters in CA |
1,593 |
| 66 | 1,593 | |
| 67 |
Upgrade, Inc.upgrade.com
Fintech unicorn founded in 2017, helping customers access over $25 billion in consumer credit with credit lines, loans, and banking solutions Recognized for innovation and workplace culture |
1,585 |
| 68 |
Commurecommure.com
Innovative technologies enhancing healthcare workforce, solving industry challenges, and catalyzing a vibrant health ecosystem for hospitals and health systems |
1,577 |
| 69 | 1,569 | |
| 70 |
ClickUpclickup.com
It offers a comprehensive productivity platform combining project management, document collaboration, and AI, enhancing efficiency for millions of users globally. |
1,502 |
| 71 |
Dialpaddialpad.com
It provides an Ai-powered platform for customer intelligence, enhancing productivity and collaboration through advanced tools for contact centers, sales, and meetings. |
1,490 |
| 72 |
Engineer.aibuilder.ai
A platform that utilizes AI and building blocks to create customized software, aiming to simplify and lower the cost of software development |
1,484 |
| 73 | 1,441 | |
| 74 |
ลURAouraring.com
A fast-growing startup based in Finland, Oura helps people track sleep and activity with their Oura Ring and app, empowering users to improve their health and well-being |
1,428 |
| 75 |
Sigmasigmacomputing.com
Cloud Analytics solution with a spreadsheet-like interface for exploring data at cloud scale and speed to analyze past, present, and future data trends |
1,427 |
| 76 |
Perplexityperplexity.ai
Cutting-edge answer engine providing accurate and updated information to satisfy curiosity and ignite knowledge exploration |
1,413 |
| 77 |
Darwinboxdarwinbox.com
Enabled by AI and ML, we provide a modern HCM suite for automating HR processes, generating insights, and fostering better workplaces worldwide |
1,401 |
| 78 |
Talkdesktalkdesk.com
Automates modern customer journeys using multi-agent AI orchestration and data unification to provide precise service, sales, and support across various specialized industries. |
1,382 |
| 79 |
Nilenilesecure.com
Pioneer and leader in Secure Networking-as-a-Service, delivering zero-trust, autonomous operations and cloud solutions for radical operational simplicity, security, speed, and stellar user experiences. |
1,355 |
| 80 |
Constructorconstructor.com
Platform enhances ecommerce conversions using AI-powered search, personalization, and product discovery tools for retailers and marketplaces. |
1,353 |
| 81 |
Seismicseismic.com
Global enablement platform providing customer-facing teams with skills, content, tools, and insights to drive engagement and revenue growth. |
1,329 |
| 82 | 1,313 | |
| 83 |
GoFundMegofundme.com
A platform empowering individuals to raise funds for causes they care about, connecting a community of 200 million donors worldwide |
1,290 |
| 84 |
PagerDutypagerduty.com
PagerDuty is a digital operations platform that helps companies respond to issues in real-time, improve operations, and collaborate effectively for success |
1,266 |
| 85 |
Patreonpatreon.com
Supports creators in building communities, sharing exclusive work, and turning passions into sustainable businesses through direct fan support |
1,263 |
| 86 |
Safe Securitysafe.security
Reinvents cyber risk management using Agentic AI, automating understanding, prioritization, and management of enterprise, third-party, and AI-related cyber risks. |
1,241 |
| 87 |
LogicMonitorlogicmonitor.com
This company provides comprehensive monitoring solutions to help businesses predict problems, unlock opportunities, and advance their technology globally |
1,228 |
| 88 |
Snorkel AIsnorkel.ai
Develops programmatic data tools and expertise to accelerate creation and deployment of specialized AI models for unique workloads. |
1,208 |
| 89 |
Quoracareers.quora.com
A Q&A platform aimed at democratizing access to knowledge by empowering people to share and grow the world's knowledge through online contributions |
1,191 |
| 90 |
Intercomintercom.com
It offers an AI-first customer service platform with AI Agent, AI Copilot, and upcoming AI Analyst for improved efficiency. |
1,188 |
| 91 |
Securiti AIsecuriti.ai
A pioneering platform for safe data use and GenAI, providing data intelligence, controls, and orchestration for global enterprises' security, privacy, governance, and compliance |
1,177 |
| 92 |
Bloomreachbloomreach.com
Using real-time customer and product data, the company personalizes the e-commerce experience across all channels through AI technology, driving more tailored paths to purchase |
1,154 |
| 93 |
Tipaltitipalti.com
Mid-market platform automating accounts payable, global payouts, procurement, and expenses across two hundred countries for secure supplier payments in over one hundred currencies. |
1,119 |
| 94 |
ThredUpthredup.com
Managed marketplace for secondhand apparel, shoes and accessories providing resale technology services for brands while offering sustainable shopping experiences through large-data-driven processing infrastructure and software. |
1,110 |
| 95 | 1,108 | |
| 96 |
Whatfixshorturl.at
AI platform providing digital adoption tools, simulated training environments, and product analytics to maximize software return on investment and improve user productivity. |
1,107 |
| 97 |
d.lightdlight.com
Global leader providing affordable solar-powered solutions for developing world, transforming energy access for households and small businesses, impacting 100 million lives by 2020 |
1,085 |
| 98 | 1,083 | |
| 99 | 1,069 | |
| 100 |
WelbeHealthwelbehealth.com
WelbeHealth offers comprehensive care for seniors, including medical, coordination, home care, dental, therapy, transport, prescriptions, social activities, and meals, with a focus on empowering vulnerable individuals |
1,069 |
Turn this list into pipeline
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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 2, 2026.
More company lists in California
- The largest companies in California 15,328
- SaaS companies in California 1,859
- Software Development companies in California 1,659
- AI companies in California 1,301
- Manufacturers in California 1,074
- Hardware manufacturers in California 990
- IT Services and IT Consulting companies in California 968
- Education providers in California 952
- Venture capital and private equity firms in California 921
- Retail chains in California 805
- IT services companies in California 796
- Venture Capital and Private Equity Principals companies in California 733
- Financial services firms in California 715
- Financial Services companies in California 645
- Healthcare providers in California 573
- AI-native companies in California 563
- Hospitals and Health Care companies in California 560
- Consulting firms in California 553
- Public sector organisations in California 536
- Technology, Information and Internet companies in California 522
- E-commerce companies in California 515
- Publicly traded companies in California 509
- Critical infrastructure operators in California 486
- Construction companies in California 393
The same list elsewhere in United States
- Venture-backed startups in the United States 887
- Venture-backed startups in New York State 184
- Venture-backed startups in Massachusetts 54
- Venture-backed startups in Texas 30
- Venture-backed startups in Alabama 25
- Venture-backed startups in San Francisco 227
- Venture-backed startups in New York 184
- Venture-backed startups in Palo Alto 28
- Venture-backed startups in Boston 26