Company lists · Data refreshed November 2026

Top 22 Fintech SaaS developers based in London, United Kingdom

RevenueBase identified 136 company matches for fintech SaaS developers associated with London, United Kingdom as of November 2026 and tracks 27,444 professional contacts across them, including 13,647 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for fintech SaaS developers associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 5, 2026 How this list was built
136Companies
27,444Contacts tracked
13,647Verified emails
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The 22 largest fintech SaaS developers based in London, United Kingdom

Ranked by team size
Top 22 of 136 company matches for fintech SaaS developers based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Nov 5, 202610001+19,814 contacts →

Exact match

“People deserve more from their money.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 5, 20261,001-5,0004,332 contacts →

Exact match

“SumUp is a leading global fintech company committed to levelling the playing field for small businesses.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500425 contacts →

Exact match

“Finova is a leading UK lending and savings technology provider, helping financial institutions stay ahead with a flexible and proven suite of solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Nov 5, 2026501-1,000279 contacts →

Exact match

“Form3 is a cloud-native payments technology company helping banks, fintechs and payment providers modernize their payments infrastructure.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500274 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-500227 contacts →

Exact match

“Genesis Global enables financial markets organizations to innovate at speed through a software application development platform, prepackaged solutions and deep expertise in…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200225 contacts →

Exact match

“OpenPayd is building the universal financial infrastructure for the digital economy.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 5, 2026501-1,000154 contacts →

Exact match

“We are a pioneering international FinTech company, which is disrupting the traditional consumer lending space by providing solutions for “underserved” customers.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200151 contacts →

Exact match

“The current banking products in the market are complex, hard to onboard manage and expensive to operate.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-200107 contacts →

Exact match

“BKN301 is building the financial data infrastructure layer connecting regulated banking, AI and digital assets across Europe, the Middle East and Africa.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Nov 5, 2026201-50047 contacts →

Exact match

“FinHub is an international enterprise FinTech and financial software company operating across multiple jurisdictions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5037 contacts →

Exact match

“Sciforn builds AI-native financial technology across five connected platforms: Athena (CRE loan servicing & asset management), Selene (fund operations, NAV & carry), Helios…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20035 contacts →

Exact match

“FXE Technologies is a B2B Fintech focusing on disrupting the small business lending market.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5024 contacts →

Exact match

“Greengage is a digital finance pioneer, that provides a platform of relationship-based e-money services to entrepreneurs, SMEs, family offices, and digital asset firms to the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20024 contacts →

Exact match

“Fidel API is a global financial infrastructure platform that enables developers to build programmable experiences at the moment a transaction occurs on any payment card.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“Trading Apps is an innovative global fintech specialising in software solutions for the Securities Finance Industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5023 contacts →

Exact match

“At Addition Finance, we're revolutionising the landscape of business finance on a global scale.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5022 contacts →

Exact match

“Simplify Synergy is a transformative FinTech startup that provides innovative technological solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5021 contacts →

Exact match

“Pannovate is a Banking-as-a-Service platform and orchestration layer that empowers financial and non-financial organisations to deliver seamless digital experiences and embedded…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 5, 202651-20020 contacts →

Exact match

“Bite Investments is a global financial technology company, providing software-as-a-service (SaaS) to digitalise alternatives investments in a seamless end-to-end investment…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Nov 5, 20261-1018 contacts →

Exact match

“Embedded Finance is not just for large corporations.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 5, 202611-5016 contacts →

Exact match

“An advanced Fintech Organization with experienced and expertise employees in payments, high risk acquiring, crypto acquiring domain.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 22 of 136 fintech SaaS developers based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 13,647 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Fintech SaaS developers based in London, United Kingdom at a glance

As of Nov 5, 2026
49.7%Verified-email coverage
201.8Average contacts per company
11-50Median size (employees)
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
43
11-50
63
51-200
17
201-500
6
501-1,000
4
1,001-5,000
2
10001+
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 136 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with London, United Kingdom whose business descriptions match “fintech SaaS developers” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 13,647 professional contacts with verified work emails across the full matched dataset. 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 November 5, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “fintech SaaS developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many fintech SaaS developers are there based in London, United Kingdom?

RevenueBase identified 136 company matches for fintech SaaS developers associated with London, United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Revolut tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most fintech SaaS developers?

London leads the United Kingdom with 136 company records, followed by Manchester (6) and Bedford (2).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 13,647 professional contacts with verified work emails tracked across these 136 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 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.