Company lists · Data refreshed September 2026

Top 25 Fintech payment platforms based in San Francisco, United States

Name: Fintech payment platforms based in San Francisco, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 81 companies tracked

RevenueBase identified 81 fintech payment platforms headquartered in San Francisco, United States as of September 2026 and tracks 4,445 professional contacts across them, including 1,565 with verified work emails and 865 with mobile numbers. Across the United States, New York is the largest hub for this category (115 companies); San Francisco follows with 76.

This list covers fintech payment platforms 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 12, 2026 86% judged on-target in blind review

81Companies

4,445Contacts tracked

1,565Verified emails

865Mobile numbers

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The 25 largest fintech payment platforms based in San Francisco, United States

Ranked by team size

Top 25 of 81 fintech payment platforms based in San Francisco, United States, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to fintech payment platforms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	NIUM	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	501-1,000	890 contacts →
	Partial evidence “Nium, the global leader in real-time, cross-border payments, was founded on the mission to deliver the global payments infrastructure of tomorrow, today.” Source: RevenueBase Database · checked Sep 12, 2026
2	BOKU	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	201-500	588 contacts →
	Partial evidence “Boku Inc.(BOKU.L) is a global provider of localized payment solutions including digital wallets, direct carrier billing, and account to account/real-time payments schemes.” Source: RevenueBase Database · checked Sep 12, 2026
3	BOLT	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	201-500	424 contacts →
	Indirect evidence “Bolt provides businesses with best-in-class customer conversion through seamless and secure one-click checkout.” Source: RevenueBase Database · checked Sep 12, 2026
4	FINIX	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	169 contacts →
	Strong 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, 2026
5	Modern Treasury	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	148 contacts →
	Indirect evidence “Modern Treasury provides the most trusted infrastructure for global money movement.” Source: RevenueBase Database · checked Sep 12, 2026
6	Highnote	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	139 contacts →
	Strong evidence “Highnote is the unified payments platform integrating card issuing, acquiring, credit, ledger, and real-time money movement.” Source: RevenueBase Database · checked Sep 12, 2026
7	Parafin	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	134 contacts →
	Strong evidence “Parafin’s infrastructure powers financial services for marketplaces, vertical SaaS, payment platforms, and more.” Source: RevenueBase Database · checked Sep 12, 2026
8	Paymentwall, INC	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	201-500	104 contacts →
	Strong evidence “Paymentwall is a global payment platform that unites over 150 payment methods, including credit and debit cards, bank transfers, e-wallets, prepaid cards, and mobile carrier…” Source: RevenueBase Database · checked Sep 12, 2026
9	SLASH	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	65 contacts →
	Partial 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, 2026
10	Skyline Payments	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	56 contacts →
	Partial evidence “Skyline Payments powers B2B transactions for small and midsize businesses, directly integrating payments into ERP, accounting, and eCommerce systems.” Source: RevenueBase Database · checked Sep 12, 2026
11	Resolve	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	47 contacts →
	Partial evidence “Resolve enables B2B companies to boost sales and cash flow by offering their buyers 30, 60, or 90 day payment terms, while ensuring the seller gets paid upfront risk-free.” Source: RevenueBase Database · checked Sep 12, 2026
12	Plastiq	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	501-1,000	40 contacts →
	Indirect evidence “We’re Plastiq, Powered by Priority.” Source: RevenueBase Database · checked Sep 12, 2026
13	Optimus Fintech	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	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, 2026
14	authorize.net	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	501-1,000	37 contacts →
	Partial evidence “Since 1996, Authorize.net has been a leading provider of payment management solutions, managing the submission of billions of transactions to the processing networks on behalf of…” Source: RevenueBase Database · checked Sep 12, 2026
15	Synapse	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	201-500	29 contacts →
	Partial 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, 2026
16	Stronghold	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	29 contacts →
	Strong evidence “Stronghold is a fintech infrastructure company enabling fast, secure pay-by-bank and embedded payments through developer-first APIs.” Source: RevenueBase Database · checked Sep 12, 2026
17	WYRE	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	51-200	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, 2026
18	Qonversion	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	18 contacts →
	Strong evidence “The Mobile Payments Platform for Subscription Apps.” Source: RevenueBase Database · checked Sep 12, 2026
19	Rocketfuel	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	18 contacts →
	Partial evidence “RocketFuel Payments \| Redefining Digital Commerce RocketFuel Payments provides next-generation payment solutions that bridge traditional rails with blockchain, stablecoin, and…” Source: RevenueBase Database · checked Sep 12, 2026
20	Iwallet	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	18 contacts →
	Indirect evidence “iWallet, is the #1 FPOS Field Service Point of Sale app.” Source: RevenueBase Database · checked Sep 12, 2026
21	Link Money	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	17 contacts →
	Partial evidence “Link Money is revolutionizing payments in the United States with the first Pay by Bank solution focused exclusively on the US market.” Source: RevenueBase Database · checked Sep 12, 2026
22	ANSA	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	15 contacts →
	Partial evidence “Commerce has out-innovated payments.” Source: RevenueBase Database · checked Sep 12, 2026
23	MESTA	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	14 contacts →
	Indirect evidence “Mesta is the Global Fiat + Stablecoin Operating System.” Source: RevenueBase Database · checked Sep 12, 2026
24	Bento For Business	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	11 contacts →
	Partial evidence “Bento offers the most complete B2B payments solution for small and mid-size businesses.” Source: RevenueBase Database · checked Sep 12, 2026
25	Rehive	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 12, 2026	11-50	6 contacts →
	Strong evidence “Rehive is a ready-to-deploy fintech platform pre-integrated with Bridge offering branded web, iOS, and Android apps with stablecoin wallets, fiat rails, built-in compliance, and…” Source: RevenueBase Database · checked Sep 12, 2026

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 payment platforms. 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 payment platforms.
Partial evidence: Its own public description names part of fintech payment platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fintech payment platforms. 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 81 fintech payment platforms based in San Francisco, United States

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Fintech payment platforms based in San Francisco, United States at a glance

As of Sep 12, 2026

35.2%Verified-email coverage

19.5%Mobile-number coverage

54.9Average contacts per company

11-50Median size (employees)

Sep 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

1,3090–30

23431–60

961–90

090–180

13180+

Company record updated

Median 75.0d

00–30

1,78931–60

2,04961–90

42590–180

182180+

How 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 payment platforms, 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 payment platforms”. 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 payment platforms), 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 payment platforms, 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, 1,565 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 payment platforms 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 payment platforms, 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 payment platforms are there based in San Francisco, United States?

RevenueBase identified 81 fintech payment platforms 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?

NIUM, headquartered in San Francisco, tops this list with the largest team on record.

Which city in the United States has the most fintech payment platforms?

New York leads the United States with 115 headquartered companies, followed by San Francisco (76) and Miami (49).

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 1,565 verified decision-maker contacts tracked across these 81 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.

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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.