Company lists · Data refreshed September 2026
Top 25 Fintech infrastructure companies based in the United Kingdom
RevenueBase identified 324 fintech infrastructure companies headquartered in the United Kingdom as of September 2026 and tracks 24,745 professional contacts across them, including 10,702 with verified work emails and 947 with mobile numbers. London is the largest hub.
This list covers fintech infrastructure companies headquartered in the United Kingdom, 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, how directly it supports the match, and when it was last checked. Data refreshed September 2, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 infrastructure companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 16,494 | ||||
“People deserve more from their money.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 2 | 752 | ||||
“Build Bold.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 3 | PICOIndirect evidence | 463 | |||
“Pico is a leading global provider of mission-critical technology services, software, data, and analytics for the financial markets community.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 4 | 435 | ||||
“We are a company on a mission to build a global financial ecosystem that empowers individuals and businesses to have more control over their financial lives.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 5 | 425 | ||||
“IT SOFTWARE -the Technancial Company- is focused on designing and developing cutting-edge solutions to satisfy the needs of the most sophisticated financial institutions.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 6 | 347 | ||||
“Capsitech IT Services is a fintech and technology innovation company, building scalable digital platforms for modern businesses.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 7 | 281 | ||||
“For more than 25 years, Sandstone Technology has been innovating and evolving financial solutions for some of the world’s largest banks and financial institutions.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 8 | 272 | ||||
“Form3 develop payment technology.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 9 | 226 | ||||
“Curve is on a mission to simplify the way people spend, send, see and save money.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 10 | 214 | ||||
“We are Finalto and we’re here to take the global financial markets to new heights.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 11 | 189 | ||||
“OpenPayd is building the universal financial infrastructure for the digital economy.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 12 | SubscribePartial evidence | 162 | |||
“SUBSCRIBE is a fintech company digitally transforming the landscape of alternative investments for fund managers, institutional investors, wealth managers, law firms, and fund…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 13 | 145 | ||||
“Baton is the trusted technology partner empowering the world’s largest financial institutions to transform how money and assets move.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 14 | 128 | ||||
“We are a fintech product engineering partner trusted by leading banks and financial innovators-including NatWest, RAKBANK, TBI Bank, Tarabut, Dozens, and Veriff-to design, build…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 15 | 115 | ||||
“Tuum is The Bank Builder’s Platform.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 16 | 115 | ||||
“Yapily is Europe’s leading open banking infrastructure platform solving a fundamental problem in financial services today: access.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 17 | 112 | ||||
“Cayan is hiring!” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 18 | 109 | ||||
“Elwood is the institutional operating system for 24/7 markets.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 19 | 75 | ||||
“Macro Global is a UK-based FinTech & RegTech company delivering enterprise-grade SaaS platforms for banks and financial institutions.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 20 | 74 | ||||
“Kelp is a FinTech solution that uniquely combines its in-house predictive technology with 360° private company data-paid, public and proprietary-to support alternative investment…” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 21 | 68 | ||||
“At FINkit we transform the way the global financial services industry gets their ideas into production and used by their customers.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 22 | 67 | ||||
“Integrated finance operating hub for global digital businesses.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 23 | 63 | ||||
“Bright Money Group (founded in 2019) is a company that has vast experience in the FinTech industry.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 24 | 62 | ||||
“Transforming SMB Banking and Payments.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
| 25 | 62 | ||||
“Moorwand is an FCA‑regulated Electronic Money Institution (FRN 900709), headquartered in London, offering BIN sponsorship, digital banking, and compliance services.” Source: company website · checked Sep 2, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 324 fintech infrastructure companies based in the United Kingdom
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Fintech infrastructure companies based in the United Kingdom at a glance
As of Sep 2, 2026Companies by employee count
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 infrastructure companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United Kingdom whose own description of what they do matches “fintech infrastructure companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among fintech infrastructure companies, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 10,702 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 2, 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 infrastructure companies by metro
- Fintech infrastructure companies in London236
Frequently asked
How many fintech infrastructure companies are there based in the United Kingdom?
RevenueBase identified 324 fintech infrastructure companies headquartered in the United Kingdom 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?
Revolut, headquartered in London, tops this list with the largest team on record.
Which city has the most fintech infrastructure companies?
London leads with 236 headquartered companies, followed by Manchester (8) and Leeds (4).
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 10,702 verified decision-maker contacts tracked across these 324 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 2, 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 SmartSearch, 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.
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