Company lists · Data refreshed September 2026

Top 25 Api banking platforms based in the United Kingdom

Name: Api banking platforms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 115 companies tracked

RevenueBase identified 115 api banking platforms headquartered in the United Kingdom as of September 2026 and tracks 5,498 professional contacts across them, including 2,831 with verified work emails. London is the largest hub.

This list covers api banking platforms 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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 14, 2026 86% judged on-target in blind review

115Companies

5,498Contacts tracked

2,831Verified emails

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The 25 largest api banking platforms based in the United Kingdom

Ranked by team size

Top 25 of 115 api banking platforms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to api banking 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	Clearbank	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	501-1,000	661 contacts →
	Strong evidence “Leading brands – from fintechs and banks to digital asset platforms and large-scale corporates – use our API to benefit from our fully regulated banking infrastructure and…” Source: RevenueBase Database · checked Sep 14, 2026
2	Thought Machine	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	501-1,000	516 contacts →
	Indirect evidence “Our team’s mission is a bold one – to create technology that can run the world’s banks according to the best designs and software practices of the modern age.” Source: RevenueBase Database · checked Sep 14, 2026
3	PPRO	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	501-1,000	494 contacts →
	Indirect evidence “PPRO is a fintech company that provides digital payment solutions to businesses and banks so that they can scale their local payment services through one connection.” Source: RevenueBase Database · checked Sep 14, 2026
4	Guavapay	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	441 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 14, 2026
5	10x Banking	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	266 contacts →
	Strong evidence “10x Banking (10x) is a cloud‑native core banking platform built for financial institutions transforming to next-generation, 2040-ready technology.” Source: RevenueBase Database · checked Sep 14, 2026
6	Engine By Starling	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	252 contacts →
	Strong evidence “Engine by Starling is a cloud-native, SaaS banking platform that delivers all the capabilities to run a highly competitive and cost-effective digital bank.” Source: RevenueBase Database · checked Sep 14, 2026
7	ICS Financial Systems - Icsfs	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	200 contacts →
	Partial evidence “ICSFS is a global financial and banking software solutions provider, that has been servicing the financial and banking industry for many decades through its multi-award-winning…” Source: RevenueBase Database · checked Sep 14, 2026
8	Fintech Farm	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	193 contacts →
	Indirect evidence “Fintech Farm helps traditional banks to create and run digital banks (aka neobanks).” Source: RevenueBase Database · checked Sep 14, 2026
9	Openpayd	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	190 contacts →
	Indirect evidence “OpenPayd is building the universal financial infrastructure for the digital economy.” Source: RevenueBase Database · checked Sep 14, 2026
10	Edenred Payment Solutions	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	154 contacts →
	Partial evidence “Edenred Payment Solutions is a payment solutions provider, enabling its clients to offer digital banking, embedded finance and card-based solutions to its customers.” Source: RevenueBase Database · checked Sep 14, 2026
11	Paynetics	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	132 contacts →
	Strong evidence “Paynetics is a leader in B2B payments and a digital banking platform provider.” Source: RevenueBase Database · checked Sep 14, 2026
12	Griffin	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	122 contacts →
	Partial evidence “Embed bank accounts, payments, and all kinds of financial products quickly via our simple API.” Source: RevenueBase Database · checked Sep 14, 2026
13	Yapily	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	118 contacts →
	Strong evidence “Yapily is Europe’s leading open banking infrastructure platform solving a fundamental problem in financial services today: access.” Source: RevenueBase Database · checked Sep 14, 2026
14	Bkn301	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	96 contacts →
	Indirect evidence “BKN301 is a helping Banks and Fintechs, and.” Source: RevenueBase Database · checked Sep 14, 2026
15	Meniga	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	82 contacts →
	Strong evidence “Meniga is a leading hyper-personalisation banking platform, providing best-in-class user experiences to over 100 million banking customers across 30 countries globally.” Source: RevenueBase Database · checked Sep 14, 2026
16	Payler	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	68 contacts →
	Indirect evidence “Integrated finance operating hub for global digital businesses.” Source: RevenueBase Database · checked Sep 14, 2026
17	YASPA	Indirect evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	67 contacts →
	Indirect evidence “Yaspa is making instant payments personal.” Source: RevenueBase Database · checked Sep 14, 2026
18	Ozone API	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	66 contacts →
	Strong evidence “Ozone API is the leading standards based platform that handles the complexity of open banking, making it easy for any financial institution to meet both regulatory and commercial…” Source: RevenueBase Database · checked Sep 14, 2026
19	Pollinate	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	62 contacts →
	Partial evidence “Transforming SMB Banking and Payments.” Source: RevenueBase Database · checked Sep 14, 2026
20	Hyperlayer	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	58 contacts →
	Partial evidence “Intelligent banking for the agentic economy.” Source: RevenueBase Database · checked Sep 14, 2026
21	XYB	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	53 contacts →
	Partial evidence “XYB is the first and only platform for modern adaptive finance.” Source: RevenueBase Database · checked Sep 14, 2026
22	Velmie	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	53 contacts →
	Partial evidence “Velmie is a digital banking system integrator and mobile app delivery partner for regulated fintech programs.” Source: RevenueBase Database · checked Sep 14, 2026
23	Fintilect	Strong evidence	London, United KingdomHQ checked Sep 14, 2026	51-200	47 contacts →
	Strong evidence “Fintilect is a digital banking platform provider focused exclusively on financial services.” Source: RevenueBase Database · checked Sep 14, 2026
24	TOQIO	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	11-50	47 contacts →
	Partial evidence “We are transforming traditional finance by providing a powerful SaaS modular platform that enables corporates and financial institutions to launch and scale embedded financial…” Source: RevenueBase Database · checked Sep 14, 2026
25	Finhub	Partial evidence	London, United KingdomHQ checked Sep 14, 2026	201-500	40 contacts →
	Partial evidence “At Finhub, we are building the infrastructure powering the next generation of embedded finance, digital banking, and payment ecosystems across the UK, Europe, Switzerland, and…” Source: RevenueBase Database · checked Sep 14, 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: api banking 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 api banking platforms.
Partial evidence: Its own public description names part of api banking platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name api banking 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 115 api banking platforms based in the United Kingdom

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Api banking platforms based in the United Kingdom at a glance

As of Sep 14, 2026

51.5%Verified-email coverage

47.8Average contacts per company

11-50Median size (employees)

76.5%Largest-city concentration · London

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 115 companies.

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 api banking 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 the United Kingdom whose own description of what they do matches “api banking 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 api banking 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 api banking platforms, 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 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, 2,831 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 14, 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.

Api banking platforms by metro

Api banking platforms in London88

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 api banking 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 api banking platforms are there based in the United Kingdom?

RevenueBase identified 115 api banking platforms 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?

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

Which city has the most api banking platforms?

London leads with 88 headquartered companies, followed by Manchester (3) and Basingstoke (1).

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 2,831 verified decision-maker contacts tracked across these 115 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 14, 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.