Company lists · Data refreshed September 2026

Top 25 Financial services software developers based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 12, 2026 113 companies tracked

RevenueBase identified 113 company matches for financial services software developers associated with London, United Kingdom as of September 2026 and tracks 12,814 professional contacts across them, including 5,907 with verified work emails and 1,657 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for financial services software 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 September 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 Sep 12, 2026 How this list was built

113Companies

12,814Contacts tracked

5,907Verified emails

1,657Mobile numbers

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The 25 largest financial services software developers based in London, United Kingdom

Ranked by team size

Top 25 of 113 company matches for financial services software developers based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 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 Sep 12, 2026	10001+	3,655 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 · Sep 12, 2026 · View company records in RevenueBase
2	Genesis Global	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	220 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 · Sep 12, 2026 · View company records in RevenueBase
3	Adenza	Exact match	London, United KingdomHQ recorded Sep 12, 2026	1,001-5,000	208 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 · Sep 12, 2026 · View company records in RevenueBase
4	ICS Financial Systems - Icsfs	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	200 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 · Sep 12, 2026 · View company records in RevenueBase
5	Neptune Software Group	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	158 contacts →
	Exact match “Traditionally, core banking solutions revolved around products rather than customer needs.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
6	Corfinancial	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	88 contacts →
	Exact match “Corfinancial provides software and advice to the financial services sector around the world.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
7	Singletrack	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	70 contacts →
	Exact match “Singletrack Sell Side helps banks, brokers and IRPs leverage their research, sales and corporate assets to maximum advantage in an increasingly competitive marketplace.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
8	Validata Group	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	68 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 · Sep 12, 2026 · View company records in RevenueBase
9	Quantios Formally Microgen	Exact match	London, United KingdomHQ recorded Sep 12, 2026	201-500	48 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 · Sep 12, 2026 · View company records in RevenueBase
10	Fairmort Limited	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	36 contacts →
	Exact match “Fairmort is a software product & consultancy company.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
11	Netdania	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	34 contacts →
	Exact match “Established in 1998, Netdania has emerged as a leading figure in financial technology.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
12	Avidi Technologies	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	33 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 · Sep 12, 2026 · View company records in RevenueBase
13	Mahimarkets	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	31 contacts →
	Exact match “Combining extensive trading knowledge and robust engineering, we’ve been crafting solutions for banks and brokers since 2010; helping our customers to drive PnL and deliver low…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
14	Celer Technologies	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	30 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 · Sep 12, 2026 · View company records in RevenueBase
15	Chronicle Software	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	19 contacts →
	Exact match “Founded in 2013 by Java Champion Peter Lawrey, Chronicle Software is on a mission to revolutionise financial technology through proven practices and collaboration.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
16	Fentexa	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	19 contacts →
	Exact match “Fentexa is a technology-driven consultancy, dedicated to the financial markets sector.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
17	Arctic Lake	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	11 contacts →
	Exact match “We understand that one-size-fits-all trading platforms can't deliver every feature you need to grow your business.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
18	Swallowtech	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	10 contacts →
	Exact match “SwallowTech has been a leading provider of software solutions to the financial services industry for more than 40 years.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
19	Regtify	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	10 contacts →
	Exact match “At REGTIFY, we develop software solutions that help financial services firms, fintech groups, regulated organisations, and professional service providers optimise financial and…” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
20	Metryus	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	9 contacts →
	Exact match “Metryus provides software development and consulting services for Digital Banking and FinTech.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
21	Alpima NOW Quantifeed	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	7 contacts →
	Exact match “The SaaS Platform for Investment Management and Product Design.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
22	Inovotek Solutions	Exact match	London, United KingdomHQ recorded Sep 12, 2026	11-50	6 contacts →
	Exact match “Inovotek Solutions is a global business and technology consultancy dedicated to the financial markets sector.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
23	Aicura Solutions	Exact match	London, United KingdomHQ recorded Sep 12, 2026	51-200	6 contacts →
	Exact match “We deliver cutting edge software for banks.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
24	Global Valuation	Exact match	London, United KingdomHQ recorded Sep 12, 2026	1-10	5 contacts →
	Exact match “At Global Valuation, we believe in making risk and pricing analytics accessible, easy to use, and fast to compute.” Recorded in the RevenueBase company graph · Sep 12, 2026 · View company records in RevenueBase
25	EQF	Exact match	London, United KingdomHQ recorded Sep 12, 2026	1-10	5 contacts →
	Exact match “Our software suite for financial derivatives is currently used by front-office trading and risk-management teams at large investment banks.” Recorded in the RevenueBase company graph · Sep 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 software developers”. 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 25 of 113 financial services software developers based in London, United Kingdom

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Financial services software developers based in London, United Kingdom at a glance

As of Sep 12, 2026

46.1%Verified-email coverage

12.9%Mobile-number coverage

113.4Average contacts per company

11-50Median size (employees)

Sep 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+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

4,8700–30

88731–60

2561–90

090–180

125180+

Company record updated

Median 63.0d

00–30

5,57131–60

5,52561–90

1,08290–180

636180+

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 software 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 5,907 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 September 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 software developers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many financial services software developers are there based in London, United Kingdom?

RevenueBase identified 113 company matches for financial services software developers associated with London, United Kingdom as of September 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 software developers?

London leads the United Kingdom with 118 company records, followed by Edinburgh (5) and Manchester (4).

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 5,907 professional contacts with verified work emails tracked across these 113 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 September 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.