Company lists · Data refreshed September 2026

Top 25 Financial services software development companies based in the United Kingdom

Name: Financial services software development 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 28, 2026 494 companies tracked

RevenueBase identified 494 financial services software development companies headquartered in the United Kingdom as of September 2026 and tracks 21,706 professional contacts across them, including 8,987 with verified work emails. London is the largest hub.

This list covers financial services software development 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 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 28, 2026 86% judged on-target in blind review

494Companies

21,706Contacts tracked

8,987Verified emails

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The 25 largest financial services software development companies based in the United Kingdom

Ranked by team size

Top 25 of 494 financial services software development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to financial services software development companies: 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	Finastra	Strong evidence	Paddington, United KingdomHQ checked Sep 28, 2026	5,001-10,000	6,779 contacts →
	Strong evidence “We’re partnering with financial institutions to deliver reliable and secure mission-critical financial services software shaped by their needs and driven by innovation.” Source: RevenueBase Database · checked Sep 28, 2026
2	ION	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	3,655 contacts →
	Strong evidence “We’re visionary innovators who are delivering mission-critical trading and workflow automation software to financial institutions, corporations, central banks, and governments.” Source: RevenueBase Database · checked Sep 28, 2026
3	Wolters Kluwer	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	1,279 contacts →
	Partial evidence “Wolters Kluwer Financial Services Solutions are offerings of the company’s Financial & Corporate Compliance.” Source: RevenueBase Database · checked Sep 28, 2026
4	First Derivative	Indirect evidence	Newry, United KingdomHQ checked Sep 28, 2026	1,001-5,000	988 contacts →
	Indirect evidence “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Source: RevenueBase Database · checked Sep 28, 2026
5	Target Group	Strong evidence	Newport, United KingdomHQ checked Sep 28, 2026	501-1,000	815 contacts →
	Strong evidence “Target Group \| Scalable Solutions for Financial Services At Target Group, we help financial institutions unlock growth through compliant, customer-centric servicing and software…” Source: RevenueBase Database · checked Sep 28, 2026
6	Fidessa	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	480 contacts →
	Partial evidence “Exceptional trading, investment and information solutions for the world's financial community.” Source: RevenueBase Database · checked Sep 28, 2026
7	Finova	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	379 contacts →
	Partial evidence “Finova is a leading UK lending and savings technology provider, helping financial institutions stay ahead with a flexible and proven suite of solutions.” Source: RevenueBase Database · checked Sep 28, 2026
8	Genesis Global	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	220 contacts →
	Strong evidence “Genesis Global enables financial markets organizations to innovate at speed through a software application development platform, prepackaged solutions and deep expertise in…” Source: RevenueBase Database · checked Sep 28, 2026
9	Adenza	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	208 contacts →
	Indirect evidence “We create and deliver market-leading solutions to help you optimize investment, unlock value and drive growth.” Source: RevenueBase Database · checked Sep 28, 2026
10	ICS Financial Systems - Icsfs	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	200 contacts →
	Strong 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 28, 2026
11	Neptune Software Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	158 contacts →
	Indirect evidence “Traditionally, core banking solutions revolved around products rather than customer needs.” Source: RevenueBase Database · checked Sep 28, 2026
12	Tieto Financial Solutions	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	10001+	134 contacts →
	Strong evidence “Tieto is a global provider of core banking and financial software solutions incorporating mortgage & savings solutions, e-Banking, e-Savings, installment credit, collections…” Source: RevenueBase Database · checked Sep 28, 2026
13	Focus Advice Technology	Partial evidence	Leamington Spa, United KingdomHQ checked Sep 28, 2026	51-200	126 contacts →
	Partial evidence “At Focus, we specialise in advice technology that helps financial services firms deliver smarter, faster, and more engaging client experiences.” Source: RevenueBase Database · checked Sep 28, 2026
14	Fern Software	Strong evidence	Belfast, United KingdomHQ checked Sep 28, 2026	51-200	109 contacts →
	Strong evidence “Fern Software is a leading provider of banking software for inclusive financial institutions (banks, microfinance institutions, credit unions, SME lenders and development banks).” Source: RevenueBase Database · checked Sep 28, 2026
15	Goodcore Software	Partial evidence	Croydon, United KingdomHQ checked Sep 28, 2026	51-200	90 contacts →
	Partial evidence “When software underpins how your business operates, change carries real risk.” Source: RevenueBase Database · checked Sep 28, 2026
16	Corfinancial	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	88 contacts →
	Strong evidence “Corfinancial provides software and advice to the financial services sector around the world.” Source: RevenueBase Database · checked Sep 28, 2026
17	EV	Indirect evidence	Newbury Business Park, United KingdomHQ checked Sep 28, 2026	51-200	86 contacts →
	Indirect evidence “For 30 years, EV has been the tech innovator behind the UK's wealth management revolution.” Source: RevenueBase Database · checked Sep 28, 2026
18	Pinion Services	Indirect evidence	Wakefield, United KingdomHQ checked Sep 28, 2026	51-200	86 contacts →
	Indirect evidence “Pinion is a professional services firm focused primarily on payment-solutions technologies and information management.” Source: RevenueBase Database · checked Sep 28, 2026
19	Neptune North	Strong evidence	Newcastle Upon Tyne, United KingdomHQ checked Sep 28, 2026	51-200	77 contacts →
	Strong evidence “At Neptune North we specialise in providing software development and consulting services to businesses operating in the Financial Services and Alternative Investment markets.” Source: RevenueBase Database · checked Sep 28, 2026
20	Eurobase	Strong evidence	Chelmsford, United KingdomHQ checked Sep 28, 2026	51-200	75 contacts →
	Strong evidence “Eurobase is an international software and service provider to financial institutions in over 25 countries.” Source: RevenueBase Database · checked Sep 28, 2026
21	Rndpoint	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	71 contacts →
	Strong evidence “RNDpoint is a global software solutions provider with a focus on FinTech, AI, and software development productivity.” Source: RevenueBase Database · checked Sep 28, 2026
22	Dunstan Thomas DT	Indirect evidence	Portsmouth, United KingdomHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Dunstan Thomas (DT) are a leading UK WealthTech partner, having spent over 30 years at the heart of WealthTech innovation.” Source: RevenueBase Database · checked Sep 28, 2026
23	Singletrack	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	70 contacts →
	Indirect evidence “Singletrack Sell Side helps banks, brokers and IRPs leverage their research, sales and corporate assets to maximum advantage in an increasingly competitive marketplace.” Source: RevenueBase Database · checked Sep 28, 2026
24	Validata Group	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	68 contacts →
	Partial evidence “Validata Group is an international company that empowers banks and financial services with continuous quality engineering, smart ‘progressive’ data migration and enterprise…” Source: RevenueBase Database · checked Sep 28, 2026
25	GPM	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	60 contacts →
	Strong evidence “GPM Development Ltd is an independent software and IT development company based in the Lloyd's building.” Source: RevenueBase Database · checked Sep 28, 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: financial services software development companies. 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 financial services software development companies.
Partial evidence: Its own public description names part of financial services software development companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name financial services software development companies. 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 494 financial services software development companies based in the United Kingdom

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Financial services software development companies based in the United Kingdom at a glance

As of Sep 28, 2026

41.4%Verified-email coverage

43.9Average contacts per company

1-10Median size (employees)

43.7%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

281

11-50

137

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 494 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 financial services software development companies, 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 “financial services software development companies”. 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 financial services software development companies), 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 financial services software development 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 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, 8,987 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 28, 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.

Financial services software development companies by metro

Financial services software development companies in London216

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 financial services software development companies, 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 financial services software development companies are there based in the United Kingdom?

RevenueBase identified 494 financial services software development 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?

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

Which city has the most financial services software development companies?

London leads with 216 headquartered companies, followed by Manchester (11) and Edinburgh (10).

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 8,987 verified decision-maker contacts tracked across these 494 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 28, 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.