Series B Blockchain companies in San Francisco

Companies building L1s, L2s, wallets, infra, and apps on public blockchains. Filtered to Series B-stage companies headquartered in San Francisco.

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Built from a search like: “Top Series B Blockchain companies in San Francisco”

Ranked by current headcount across Series B Blockchain companies in San Francisco. Refreshed monthly.

1
Cherry· San Francisco, California, United States
Cherry Technologies is a fintech company helping health and wellness providers serve more people by offering top-tier payment plans with high approvals, low cost, and a seamless experience. With leading terms for practices and patients, Cherry is the preferred partner in dental, veterinary, medical aesthetics, plastic surgery and beyond.
- Series B
- 871 employees
- Founded 2019
2
Tilt· San Francisco, California, United States
At Tilt, we see a side of people that traditional lenders miss. Our mobile-first products and machine learning-powered credit models look beyond credit scores, using over 250 real-time financial signals to recognize real potential. Named among the next billion-dollar startups, we're not just changing how people access financial products — we're creating a new credit system that backs the working, whatever they're working toward.
- Series B
- 329 employees
- Founded 2012
3
Corgi· San Francisco, California, United States
Corgi is building the first AI financial infrastructure company.For information about Corgi's ETFs, visit www.corgifunds.com
- Series B
- 304 employees
- Founded 2024
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4
Clutch· San Francisco, California, United States
Building connected end-to-end journeys across the suite of banking products. Deliver best-in-class digital origination experiences, whether it’s opening a new account or applying for a loan. Clutch's modern platform removes friction for both members and staff- unlocking growth, operational efficiency, and deeper relationships.What We Solve For:• Deposit Growth: From intuitive interfaces to state-of-the-art security features. Drive more deposits by making your account opening process quick & seamless, and increase your share-of-wallet.• Loan Growth: Drive more new loan origination, refinance more existing loans, and convert more applicants to grow your market share.• Ominchannel: Deliver the same quick & seamless experience to open memberships and deposits online or in-branch.• Operational Efficiency: Reduce tedious back-office tasks with our integrations, allowing your staff to approve loans quicker and fund deposit accounts easier.
- Series B
- 264 employees
- Founded 2020
5
Okcoin· San Francisco, California, United States
🚨 Okcoin is now OKX! 🚨As we wind down the Okcoin platform, our social channels will no longer be active.If you have any questions or need assistance, please contact our customer support team at support@okcoin.com
- Series B
- 223 employees
- Founded 2013

6
Flex· San Francisco, California, United States
AI-Native Private Banking for Business Owners. Get a team of AI agents to be your finance team.
- Series B
- 208 employees
- Founded 2022
7
Mos· San Francisco, California, United States
Mos is on a mission to tear down financial barriers to opportunity. Billions in financial aid goes unclaimed every year--we connect students with that money to graduate debt free. We’re shipping fast, growing rapidly, and backed on our quest by world-class investors like Sequoia, Lux Capital, Stephen Curry, and more.
- Series B
- 175 employees
- Founded 2017
8
Numeral· San Francisco, California, United States
Sales tax and VAT, solved. Trusted by 3,000+ businesses, including Brex, Fishwife, and Eight Sleep.
- Series B
- 157 employees
- Founded 2022
9
River· San Francisco, California, United States
River is a U.S.-based Bitcoin technology and financial services company. We offer bitcoin brokerage and full-reserve custody services to individuals and businesses in one easy-to-use mobile app and on river.comOur mission at River is to build the world’s most trusted financial institution. We empower people to take ownership of their financial lives through Bitcoin, the world’s only incorruptible digital currency.
- Series B
- 142 employees
- Founded 2019
10
RPX Corporation· San Francisco, California, United States
Founded in 2008, RPX provides innovative solutions that efficiently resolve patent related disputes for the benefit of its members, which include leading global companies across technology, financial services, automotive, and other sectors. RPX’s Empower platform leverages the company’s extensive data assets to help subscribing operating companies, law firms, and patent consultancies manage patent portfolios, patent licensing, and litigation strategy, as well as stay on top of market trends. RPX’s holistic suite of patent risk solutions is the key to managing increasingly frequent and disruptive patent disputes in a technologically enabled economy.
- Series B
- 140 employees
- Founded 2008

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Find engineers at Series B Blockchain companies in San Francisco

Searching for “engineers at top Series B Blockchain companies in San Francisco” surfaces this slice of the market. The list above ranks Blockchain companies headquartered in San Francisco whose latest disclosed round is Series B, by current headcount, drawn from public LinkedIn and Crunchbase records. With 34 matching companies in Refolk’s index, this is a tight read on where the Blockchain talent in San Francisco is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series B, Blockchain, in San Francisco - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Blockchain’s next operators and angel investors.

Refolk converts this list into a live search. Ask for “senior engineers at Series B Blockchain companies in San Francisco hiring” or “founders of Series B Blockchain companies 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 Blockchain companies headquartered in San Francisco whose latest disclosed funding round is Series B from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes monthly.

Last refreshed: Wed, 02 Sep 2026 21:22:12 GMT

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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.

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