Company lists · Data refreshed September 2026
Top 25 Fintech as a service companies based in San Francisco, United States
RevenueBase identified 59 fintech as a service companies headquartered in San Francisco, United States as of September 2026 and tracks 5,924 professional contacts across them, including 2,919 with verified work emails and 1,826 with mobile numbers. Across the United States, New York is the largest hub for this category (61 companies); San Francisco follows with 46.
This list covers fintech as a service companies headquartered in San Francisco, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 12, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest fintech as a service companies based in San Francisco, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,717 contacts → | ||||
Indirect evidence “Brex is the intelligent finance platform built for speed and control, empowering founders and finance teams to spend smarter and move faster globally with intuitive corporate…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,149 contacts → | ||||
Partial evidence “Mercury is the fintech ambitious companies use for banking* and all their financial workflows.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 3 | 700 contacts → | ||||
Indirect evidence “Blend Labs Inc,(NYSE: BLND) is the leading origination platform for digital banking solutions.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 4 | 327 contacts → | ||||
Indirect evidence “Pipe makes embedded financial solutions accessible to growing businesses inside the software they use every day.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 5 | 169 contacts → | ||||
Indirect evidence “Finix is a payment processor that makes it easy for software platforms, marketplaces, and individual businesses of all sizes to accept payments and send money while maximizing…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 6 | 139 contacts → | ||||
Indirect evidence “Highnote is the unified payments platform integrating card issuing, acquiring, credit, ledger, and real-time money movement.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 7 | 134 contacts → | ||||
Indirect evidence “Parafin’s infrastructure powers financial services for marketplaces, vertical SaaS, payment platforms, and more.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 8 | 124 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 9 | 69 contacts → | ||||
Indirect evidence “Migo is an embedded lending platform that enables companies to extend credit to consumers and small businesses in their own apps.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 10 | 65 contacts → | ||||
Indirect evidence “Backed by Y Combinator, NEA, Stanford University, Menlo Ventures, and the founders of Tinder and Plaid, Slash is the banking platform of choice for over of America's most…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 11 | 60 contacts → | ||||
Indirect evidence “Treasury Prime is an embedded banking software platform that connects companies to the largest network of banks and product partners so that you can launch new financial products…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 12 | 47 contacts → | ||||
Indirect evidence “Cardless is the credit card platform for building native credit experiences that cover the full journey, trusted by Coinbase, Bilt, Alibaba, Qatar Airways, and more.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 13 | 43 contacts → | ||||
Indirect evidence “Prelim helps automate deposit, treasury services, and lending onboarding for U.S.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 14 | 42 contacts → | ||||
Partial evidence “Upgrade is a fintech unicorn founded in 2017.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 15 | 40 contacts → | ||||
Indirect evidence “We’re Plastiq, Powered by Priority.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 16 | 40 contacts → | ||||
Partial evidence “The new-age back-office of fintech & retail, to increase the speed of innovation and improve the health of the financial services ecosystem.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 17 | 34 contacts → | ||||
Indirect evidence “OneUp is redefining how entrepreneurs and SMBs access financial expertise by replacing costly manual processes with intelligent, AI-native solutions revolutionize how SMB's…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 contacts → | ||||
Indirect evidence “The Launchpad for Financial Innovation We are the only regulated embedded finance platform provider that enables companies across the globe to launch feature complete deposit…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 19 | 27 contacts → | ||||
Indirect evidence “SigFig innovates best-in-class financial technology focused on putting the customer at the center of the financial services experience.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 20 | 27 contacts → | ||||
Indirect evidence “Crescent is the high-yield business banking platform.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 21 | 21 contacts → | ||||
Strong evidence “Debt as a service for fintechs, neobanks and gig platforms to lend money to their users at scale.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 22 | 18 contacts → | ||||
Indirect evidence “Founded in 2020, Mesh aims to build an open, connected, and secure financial ecosystem.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 23 | 18 contacts → | ||||
Indirect evidence “In order to port over the next billion people into a secure and open financial system, you’re going to need a network of applications that connect to the fiat world… Wyre’s APIs…” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 24 | 18 contacts → | ||||
Indirect evidence “Woodcore is a modern infrastructure that enables organizations to build financial products and services.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
| 25 | 16 contacts → | ||||
Indirect evidence “Enable is an industry leading AI-first origination platform that unifies account opening and lending for consumers and businesses.” Source: RevenueBase Database · checked Sep 12, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: fintech as a service companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names fintech as a service companies.
- Partial evidence
- Its own public description names part of fintech as a service companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name fintech as a service companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 59 fintech as a service companies based in San Francisco, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,919 reachable decision-makers.
Free signup · no credit card
Fintech as a service companies based in San Francisco, United States at a glance
As of Sep 12, 2026Companies by employee count
Freshness & accuracy
How recently the business emails were verified and the company information checked
Email last verified
Median 16.0dCompany record updated
Median 56.0dHow this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among fintech as a service companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in San Francisco, United States whose own description of what they do matches “fintech as a service companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names fintech as a service companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among fintech as a service companies, and records with no verified work email. Companies headquartered outside San Francisco are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 2,919 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 12, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Fintech as a service companies by metro in the United States
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names fintech as a service companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many fintech as a service companies are there based in San Francisco, United States?
RevenueBase identified 59 fintech as a service companies headquartered in San Francisco, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
BREX, headquartered in San Francisco, tops this list with the largest team on record.
Which city in the United States has the most fintech as a service companies?
New York leads the United States with 61 headquartered companies, followed by San Francisco (46) and Miami (29).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,919 verified decision-maker contacts tracked across these 59 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 12, 2026.
Ready to reach these companies? Verified emails and direct dials for all 59 fintech as a service companies based in San Francisco, United States. Start with a free account, no credit card.
Download this list →Related lists
Fintech as a service companies by geography
- Fintech as a service companies based in the United States
- Fintech as a service companies based in Brazil
- Fintech as a service companies based in the United Kingdom
- Fintech as a service companies based in Canada
- Fintech as a service companies based in Australia
- Fintech as a service companies based in South Africa
- Fintech as a service companies based in Mexico
- Fintech as a service companies based in Germany
- Fintech as a service companies based in Argentina
- Fintech as a service companies based in France
- Fintech as a service companies based in Spain
- Fintech as a service companies based in Italy
About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Fintech as a service companies based in the United States
- Fintech as a service companies based in Brazil
- Fintech as a service companies based in the United Kingdom
- Fintech as a service companies based in Canada
- Fintech as a service companies based in Australia
- Fintech as a service companies based in South Africa