Company lists · Data refreshed September 2026

Top 25 Trading software development companies based in the United Kingdom

Name: Trading 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 21, 2026 204 companies tracked

RevenueBase identified 204 trading software development companies headquartered in the United Kingdom as of September 2026 and tracks 7,468 professional contacts across them, including 3,464 with verified work emails. London is the largest hub.

This list covers trading 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 21, 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 21, 2026 86% judged on-target in blind review

204Companies

7,468Contacts tracked

3,464Verified emails

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The 25 largest trading software development companies based in the United Kingdom

Ranked by team size

Top 25 of 204 trading software development companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to trading 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	ION	Strong evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
2	Fidessa	Partial evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
3	Adaptive	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	264 contacts →
	Indirect evidence “Welcome to Adaptive.” Source: RevenueBase Database · checked Sep 21, 2026
4	Genesis Global	Strong evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
5	Adenza	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
6	Quadrature	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	203 contacts →
	Indirect evidence “Founded by programmers in 2010, we’re a growing tech business made up of kind, friendly, talented people.” Source: RevenueBase Database · checked Sep 21, 2026
7	Etrading Software	Strong evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	193 contacts →
	Strong evidence “Etrading Software (ETS) was founded in 2004 with the goal of bringing efficiency and stability to the burgeoning electronic trading markets.” Source: RevenueBase Database · checked Sep 21, 2026
8	Quod Financial	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	187 contacts →
	Partial evidence “Quod Financial delivers multi-asset trading technology for banks, brokers, and asset managers, supporting the full trading lifecycle across global electronic markets.” Source: RevenueBase Database · checked Sep 21, 2026
9	OSTC	Partial evidence	Bromley, United KingdomHQ checked Sep 21, 2026	201-500	143 contacts →
	Partial evidence “OSTC is a global derivatives trading company creating outstanding performers in financial markets, by developing and supporting their knowledge and experience.” Source: RevenueBase Database · checked Sep 21, 2026
10	Blackwell Global	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	108 contacts →
	Indirect evidence “Founded in 2010, the Blackwell Global group of companies (“Blackwell Global”) was established to offer brokerage solutions for private and institutional clients.” Source: RevenueBase Database · checked Sep 21, 2026
11	Tools For Brokers	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	93 contacts →
	Indirect evidence “Tools for Brokers (TFB) is a multiplatform technology provider for retail brokers and hedge funds with solutions operating on MetaTrader and Match-Trader.” Source: RevenueBase Database · checked Sep 21, 2026
12	Equity Edge	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	77 contacts →
	Partial evidence “We build and operate a simulated trading evaluation platform.” Source: RevenueBase Database · checked Sep 21, 2026
13	Singletrack	Indirect evidence	London, United KingdomHQ checked Sep 21, 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 21, 2026
14	Caplin Systems	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	68 contacts →
	Partial evidence “Caplin delivers cutting-edge trading technology, empowering financial institutions with high-performance, multi-asset platforms for FX, crypto, fixed income, and more.” Source: RevenueBase Database · checked Sep 21, 2026
15	Transficc	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	53 contacts →
	Partial evidence “Connecting to all global venues and workflows - Automating trading to manage growing volumes and low latency execution - Hosted SaaS providing out of the box DR, security and…” Source: RevenueBase Database · checked Sep 21, 2026
16	Rapid Addition	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	42 contacts →
	Partial evidence “Rapid Addition is helping financial institutions take advantage of the new world of electronic trading and giving them the flexibility to quickly adapt as markets continue to…” Source: RevenueBase Database · checked Sep 21, 2026
17	Gold-I	Partial evidence	Guildford, United KingdomHQ checked Sep 21, 2026	11-50	42 contacts →
	Partial evidence “Gold-i is a market-leading trading technology provider, trusted by brokers, liquidity providers and crypto institutions.” Source: RevenueBase Database · checked Sep 21, 2026
18	Netdania	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	34 contacts →
	Indirect evidence “Established in 1998, Netdania has emerged as a leading figure in financial technology.” Source: RevenueBase Database · checked Sep 21, 2026
19	KEY To Markets	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	33 contacts →
	Indirect evidence “Key to Markets is an independent brokerage firm offering access to financial markets for institutional investors, companies and private traders.” Source: RevenueBase Database · checked Sep 21, 2026
20	Fixnetix LTD	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	33 contacts →
	Partial evidence “Fixnetix provides market data, trading access, liquidity venue connectivity, pre-trade risk and execution management technologies for Investment Banks, Hedge Funds and Proprietary…” Source: RevenueBase Database · checked Sep 21, 2026
21	Mahimarkets	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	31 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 21, 2026
22	Celer Technologies	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	30 contacts →
	Partial evidence “Celer Technologies is a global financial software company that creates modular-based systems that have the flexibility to meet today's dynamic business environment.” Source: RevenueBase Database · checked Sep 21, 2026
23	Quadra	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Partial evidence “Quadra.trade is a purpose-built software platform designed for hedge funds and institutional investors operating in digital asset markets.” Source: RevenueBase Database · checked Sep 21, 2026
24	Gmex Group	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	23 contacts →
	Indirect evidence “is a set of companies offering sustainable and innovative solutions for a new era of global financial markets.” Source: RevenueBase Database · checked Sep 21, 2026
25	Exberry	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	21 contacts →
	Partial evidence “Exberry is an independent technology vendor specialising in cutting-edge trading technologies for exchanges.” Source: RevenueBase Database · checked Sep 21, 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: trading 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 trading software development companies.
Partial evidence: Its own public description names part of trading 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 trading 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 204 trading software development companies based in the United Kingdom

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Trading software development companies based in the United Kingdom at a glance

As of Sep 21, 2026

46.4%Verified-email coverage

36.6Average contacts per company

11-50Median size (employees)

72.1%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

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 204 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 trading 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 “trading 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 trading 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 trading 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, 3,464 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 21, 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.

Trading software development companies by metro

Trading software development companies in London147

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 trading 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 trading software development companies are there based in the United Kingdom?

RevenueBase identified 204 trading 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?

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

Which city has the most trading software development companies?

London leads with 147 headquartered companies, followed by Harrow (3) and Manchester (3).

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 3,464 verified decision-maker contacts tracked across these 204 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 21, 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.