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Top companies in San Francisco

The world's largest concentration of venture-backed software and AI companies.

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Ranked by current headcount across companies headquartered in San Francisco. Refreshed daily.

  1. 1
    Wells Fargo· San Francisco, California, United States

    Wells Fargo & Company (NYSE: WFC) is a diversified, community-based financial services company with approximately $1.9 trillion in assets. Wells Fargo’s vision is to satisfy our customers’ financial needs and help them succeed financially. Founded in 1852 and headquartered in San Francisco, Wells Fargo provides banking, investment and mortgage products and services, as well as consumer and commercial finance, through more than 7,300 locations, 12,000 ATMs, the internet (wellsfargo.com) and mobile banking, and has offices in over 40 countries and territories to support customers who conduct business in the global economy. With approximately 250,000 team members, Wells Fargo serves one in three households in the United States. Wells Fargo & Company was ranked No. 41 on Fortune’s 2022 rankings of America’s largest corporations. News, insights and perspectives from Wells Fargo are also available at Wells Fargo Stories. Relevant military experience is considered for veterans and transitioning service men and women. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, status as a protected veteran, or any other legally protected characteristic.© 2016 Wells Fargo Bank, N.A. All rights reserved. Member FDIC.

    • 240.8k employees
  2. 2
    Upwork· San Francisco, California, United States

    Upwork is the world’s work marketplace that connects businesses with independent talent from across the globe. We serve everyone from one-person startups to large, Fortune 100 enterprises with a powerful, trust-driven platform that enables companies and talent to work together in new ways that unlock their potential. Our talent community on Upwork encompasses more than 10,000 skills in categories including website & app development, creative & design, customer support, finance & accounting, consulting, and operations.

    • Post-IPO debt
    • 177.7k employees
    • Founded 2015
  3. 3
    Uber· San Francisco, California, United States

    We are Uber. The go-getters. The kind of people who are relentless about our mission to help people go anywhere and get anything and earn their way. Movement is what we power. It’s our lifeblood. It runs through our veins. It’s what gets us out of bed each morning. It pushes us to constantly reimagine how we can move better. For you. For all the places you want to go. For all the things you want to get. For all the ways you want to earn. Across the entire world. In real time. At the incredible speed of now.The idea for Uber was born on a snowy night in Paris in 2008, and ever since then our DNA of reimagination and reinvention carries on. We’ve grown into a global platform powering flexible earnings and the movement of people and things in ever expanding ways. We’ve gone from connecting rides on 4 wheels to 2 wheels to 18-wheel freight deliveries. From takeout meals to daily essentials to prescription drugs to just about anything you need at any time and earning your way. From drivers with background checks to real-time verification, safety is a top priority every single day. At Uber, the pursuit of reimagination is never finished, never stops, and is always just beginning.

    • Post-IPO debt
    • 164.9k employees
    • Founded 2009
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  5. 4
    Fresher· San Francisco, California, United States

    ProMBA Skills is built on a simple idea: management education becomes more meaningful when it is connected with real business experience.As industries evolve and organizations become more dynamic, the expectations from management professionals have also changed. Employers increasingly look for individuals who not only understand business frameworks but also appreciate the realities of execution, collaboration, and operational decision-making.ProMBA Skills was created to align management learning with these real-world expectations. The platform focuses on developing practical business understanding alongside structured management education, enabling learners to connect theoretical insights with everyday organizational challenges.By encouraging exposure to real business environments and practical problem-solving, ProMBA Skills helps learners develop a deeper appreciation of how management decisions influence operations, teams, and outcomes.Through this approach, ProMBA Skills aims to contribute to a new generation of professionals who combine thoughtful analysis with practical understanding of how businesses actually work.

    • 122.5k employees
    • Founded 2021
  6. 5
    Salesforce· San Francisco, California, United States

    We're the #1 AI CRM—where humans with agents drive customer success together with AI, data, and Customer 360 apps on one platform.Privacy Statement: http://www.salesforce.com/company/privacy/

    • Post-IPO debt
    • 88.9k employees

Find engineers and operators at companies in San Francisco

San Francisco is one of the densest markets for technology talent in the world. The list above ranks the largest companies headquartered in San Francisco by current headcount, drawn from public LinkedIn and Crunchbase records. With 7,552 matching companies in Refolk’s index, the depth of engineers, designers, product managers, and founders is broad across stages and industries.

Hiring in San Francisco usually means hiring out of these companies. The biggest names anchor the talent pool - every senior engineer in San Francisco likely has at least one of them on their resume - and the fast-growing ones generate the most movement.

Refolk lets you reach into this pool with plain English. Ask for “senior backend engineers in San Francisco who’ve shipped at scale” or “founders in San Francisco who left in the last year” and Refolk returns a ranked shortlist with the evidence behind each match.

How this list is built

Refolk pulled the largest companies headquartered in San Francisco from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 25 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 21:45:00 GMT

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How is this ranking built?

The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

How fresh is the data?

The underlying index updates continuously and this page re-renders at least daily. Last refreshed: Wed, 05 Aug 2026 21:45:00 GMT.

Can I get the full list of 7,552 companies?

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