Company lists · Data refreshed September 2026

Top 25 Fintech AI infrastructure companies based in the United Kingdom

Name: Fintech AI infrastructure companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 417 companies tracked

RevenueBase identified 417 fintech AI infrastructure companies headquartered in the United Kingdom as of September 2026 and tracks 6,252 professional contacts across them, including 2,249 with verified work emails and 595 with mobile numbers. London is the largest hub.

This list covers fintech AI 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.

How to read this list Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

417Companies

6,252Contacts tracked

2,249Verified emails

595Mobile numbers

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The 25 largest fintech AI infrastructure companies based in the United Kingdom

Ranked by team size

Top 25 of 417 fintech AI infrastructure companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names fintech AI infrastructure companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	LendableIndirect evidence	London, United Kingdom	51-200	549
	“Lendable is a platform that makes borrowing money and saving money effortless; across loans, credit cards, car finance, utility bills, insurance, mobile contracts and more.” Source: company website · checked Sep 2, 2026
2	CurinosIndirect evidence	London, United Kingdom	201-500	515
	“Curinos empowers financial institutions to make decisions with confidence, turning insight into bottom-line impact, deeper customer relationships, and profitable growth.” Source: company website · checked Sep 2, 2026
3	CapsitechPartial evidence	London, United Kingdom	201-500	347
	“Capsitech IT Services is a fintech and technology innovation company, building scalable digital platforms for modern businesses.” Source: company website · checked Sep 2, 2026
4	FinsurgeIndirect evidence	London, United Kingdom	201-500	302
	“At FinSurge, we are at the forefront of transforming the global financial landscape.” Source: company website · checked Sep 2, 2026
5	Sandstone TechnologyIndirect evidence	Leeds, United Kingdom	201-500	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, 2026
6	MindbridgePartial evidence	London, United Kingdom	51-200	199
	“MindBridge is the global leader in AI-powered financial decision intelligence.” Source: company website · checked Sep 2, 2026
7	Fintech FarmPartial evidence	London, United Kingdom	201-500	195
	“Fintech Farm helps traditional banks to create and run digital banks (aka neobanks).” Source: company website · checked Sep 2, 2026
8	Baton SystemsIndirect evidence	London, United Kingdom	51-200	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, 2026
9	Prospect 33Indirect evidence	London, United Kingdom	51-200	119
	“Prospect 33 is at the vanguard of transforming financial services through artificial intelligence, embodying the bridge between the sector’s traditional practices and the…” Source: company website · checked Sep 2, 2026
10	BridgewiseIndirect evidence	London, United Kingdom	51-200	117
	“BridgeWise is a global leader in investment intelligence, with a mission to bridge gaps in the capital markets by making investment opportunities accessible to everyone…” Source: company website · checked Sep 2, 2026
11	ElwoodIndirect evidence	London, United Kingdom	51-200	109
	“Elwood is the institutional operating system for 24/7 markets.” Source: company website · checked Sep 2, 2026
12	ZORALPartial evidence	London, United Kingdom	51-200	99
	“Zoral empowers banks and financial institutions to recalibrate banking around business objectives through intelligent automation and AI-powered decisioning.” Source: company website · checked Sep 2, 2026
13	AVENIPartial evidence	London, United Kingdom	51-200	86
	“AI built for Financial Services.” Source: company website · checked Sep 2, 2026
14	SeldonPartial evidence	London, United Kingdom	51-200	64
	“Since 2014, Seldon has been at the forefront of developing global infrastructure that enables enterprises to take control of complexity in machine learning.” Source: company website · checked Sep 2, 2026
15	Nexus FrontiertechPartial evidence	London, United Kingdom	51-200	60
	“Nexus FrontierTech empowers institutions with financial data processing products through its proprietary generative AI platform that automates data-driven processes, extracting…” Source: company website · checked Sep 2, 2026
16	EvidentPartial evidence	London, United Kingdom	51-200	55
	“Evident is an intelligence platform that specialises in benchmarking and tracking AI adoption across financial services.” Source: company website · checked Sep 2, 2026
17	XYBIndirect evidence	London, United Kingdom	51-200	53
	“XYB is the first and only platform for modern adaptive finance.” Source: company website · checked Sep 2, 2026
18	Conquer AIPartial evidence	London, United Kingdom	51-200	51
	“We build AI Native companies.” Source: company website · checked Sep 2, 2026
19	DLT AppsIndirect evidence	London, United Kingdom	51-200	50
	“We are an innovative engineering team, focused on transforming financial services globally.” Source: company website · checked Sep 2, 2026
20	CorytechIndirect evidence	London, United Kingdom	51-200	45
	“We create a future where finance and payment technologies are truly effortless-zero delays, zero complexity, zero stress.” Source: company website · checked Sep 2, 2026
21	Fintech InsightsStrong evidence	London, United Kingdom	51-200	40
	“FinTech Insights is the AI-powered competitive analysis platform for banks, credit unions and fintechs.” Source: company website · checked Sep 2, 2026
22	ABC TechIndirect evidence	London, United Kingdom	51-200	37
	“ABC Tech Group is a banking technology company powering the digital transformation of banks across Southeast Europe.” Source: company website · checked Sep 2, 2026
23	CandidStrong evidence	London, United Kingdom	201-500	32
	“From AI experiments to AI infrastructure The organisations pulling ahead aren't doing more marketing.” Source: company website · checked Sep 2, 2026
24	Cudo VenturesPartial evidence	London, United Kingdom	51-200	30
	“CUDO Ventures was founded and is headquartered in the UK, with over two decades of experience in cloud, data center, and enterprise infrastructure.” Source: company website · checked Sep 2, 2026
25	OPSFIIndirect evidence	London, United Kingdom	51-200	23
	“OpsFi is a frontier financial services provider with its own proprietary tech tools and platforms to serve clients with a deep value proposition.” Source: company website · checked Sep 2, 2026

Showing 25 of 417 fintech AI infrastructure companies based in the United Kingdom

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Fintech AI infrastructure companies based in the United Kingdom at a glance

As of Sep 2, 2026

1-10Median size (employees)

LondonLargest hub · 322 HQs

595Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

216

11-50

146

51-200

201-500

501-1,000

1,001-5,000

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 AI 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 AI 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 AI 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, 2,249 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 AI infrastructure companies by metro

Fintech AI infrastructure companies in London322

Frequently asked

How many fintech AI infrastructure companies are there based in the United Kingdom?

RevenueBase identified 417 fintech AI 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?

Lendable, headquartered in London, tops this list with the largest team on record.

Which city has the most fintech AI infrastructure companies?

London leads with 322 headquartered companies, followed by Manchester (5) and Oxford (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 2,249 verified decision-maker contacts tracked across these 417 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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Fintech AI infrastructure companies by geography

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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.