Company lists · Data refreshed October 2026

Top 22 Financial services technology companies based in London, United Kingdom

Name: Financial services technology companies based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 12, 2026 164 companies tracked

RevenueBase identified 164 company matches for financial services technology companies associated with London, United Kingdom as of October 2026 and tracks 18,234 professional contacts across them, including 7,900 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for financial services technology companies 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 October 12, 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 Oct 12, 2026 How this list was built

164Companies

18,234Contacts tracked

7,900Verified emails

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The 22 largest financial services technology companies based in London, United Kingdom

Ranked by team size

Top 22 of 164 company matches for financial services technology companies based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 12, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	ION	Exact match	London, United KingdomHQ recorded Oct 12, 2026	10001+	3,749 contacts →
	Exact match “We’re visionary innovators who are delivering mission-critical trading and workflow automation software to financial institutions, corporations, central banks, and governments.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
2	FE Fundinfo	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	1,204 contacts →
	Exact match “FE fundinfo is a leading financial data company connecting the investment industry in the UK, Europe and Asia Pacific – all on one integrated platform, Nexus.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
3	Options Technology	Exact match	London, United KingdomHQ recorded Oct 12, 2026	501-1,000	601 contacts →
	Exact match “Options Technology (Options) is a financial technology company at the forefront of banking and trading infrastructure.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
4	Fidessa	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	504 contacts →
	Exact match “Exceptional trading, investment and information solutions for the world's financial community.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
5	Genesis Global	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	225 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 · Oct 12, 2026 · View company records in RevenueBase
6	Adenza	Exact match	London, United KingdomHQ recorded Oct 12, 2026	1,001-5,000	202 contacts →
	Exact match “We create and deliver market-leading solutions to help you optimize investment, unlock value and drive growth.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
7	ICS Financial Systems - Icsfs	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	174 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
8	Neptune Software Group	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	153 contacts →
	Exact match “Traditionally, core banking solutions revolved around products rather than customer needs.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
9	Fimple	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	149 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 · Oct 12, 2026 · View company records in RevenueBase
10	Tieto Financial Solutions	Exact match	London, United KingdomHQ recorded Oct 12, 2026	10001+	134 contacts →
	Exact match “Tieto is a global provider of core banking and financial software solutions incorporating mortgage & savings solutions, e-Banking, e-Savings, installment credit, collections…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
11	Corfinancial	Exact match	London, United KingdomHQ recorded Oct 12, 2026	11-50	93 contacts →
	Exact match “Corfinancial provides software and advice to the financial services sector around the world.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
12	Stubben Edge	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	86 contacts →
	Exact match “Stubben Edge is a technology-based financial services group that enables intermediaries and their clients to make easy decisions about their risks and how to protect or save…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
13	Moneyhub	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	82 contacts →
	Exact match “Moneyhub empowers leading banks, pension providers, wealth managers and insurers to deliver intelligent, personalised financial journeys, driving better outcomes and long-term…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
14	Validata Group	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	74 contacts →
	Exact match “Validata Group is an international company that empowers banks and financial services with continuous quality engineering, smart ‘progressive’ data migration and enterprise…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
15	Finkit IS Fiserv	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	73 contacts →
	Exact match “At FINkit we transform the way the global financial services industry gets their ideas into production and used by their customers.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
16	Hyperlayer	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	69 contacts →
	Exact match “Intelligent banking for the agentic economy.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
17	Quantios Formally Microgen	Exact match	London, United KingdomHQ recorded Oct 12, 2026	201-500	66 contacts →
	Exact match “Founded in 1974 and listed on the London Stock Exchange since 1983, Microgen develops, implements and supports business-critical software.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
18	Taskize	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	60 contacts →
	Exact match “Taskize is one of the most influential fintechs in the pre- and post-trade sector of financial services.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
19	Arna Accounting PVT LTD	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	60 contacts →
	Exact match “ARNA Accounting Pvt Limited is expert in FinTech.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
20	Chainthat Limited	Exact match	London, United KingdomHQ recorded Oct 12, 2026	51-200	53 contacts →
	Exact match “We are creators of enterprise grade technology platforms that help insurance organisations across the value chain to realise their full potential.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
21	Avidi Technologies	Exact match	London, United KingdomHQ recorded Oct 12, 2026	11-50	40 contacts →
	Exact match “Avidi Technologies is an Innovative English - Ukrainian IT company with headquarters in London, UK, and R&D centers in Ivano-Frankivsk, Kharkiv, and Ternopil, Ukraine; with…” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase
22	Celer Technologies	Exact match	London, United KingdomHQ recorded Oct 12, 2026	11-50	39 contacts →
	Exact match “Celer Technologies is a global financial software company that creates modular-based systems that have the flexibility to meet today's dynamic business environment.” Recorded in the RevenueBase company graph · Oct 12, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “financial services technology companies”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 164 financial services technology companies based in London, United Kingdom

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Financial services technology companies based in London, United Kingdom at a glance

As of Oct 12, 2026

43.3%Verified-email coverage

111.2Average contacts per company

11-50Median size (employees)

Oct 12, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 164 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 “financial services technology companies” 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 7,900 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 October 12, 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 “financial services technology companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many financial services technology companies are there based in London, United Kingdom?

RevenueBase identified 164 company matches for financial services technology companies associated with London, United Kingdom as of October 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?

ION 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 financial services technology companies?

London leads the United Kingdom with 164 company records, followed by Brighton (5) and Edinburgh (5).

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 7,900 professional contacts with verified work emails tracked across these 164 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 October 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 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.