Company lists · Data verified August 2026

Top 25 Algorithm trading platforms based in London, United Kingdom

Name: Algorithm trading platforms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 160 companies tracked

There are 160 algorithm trading platforms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 4,549 professional contacts across them, including 1,970 with verified work emails and 569 with mobile numbers. London is the largest hub.

This list covers algorithm trading platforms headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

160Companies

4,549Contacts tracked

1,970Verified emails

569Mobile numbers

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The 25 largest algorithm trading platforms based in London, United Kingdom

Ranked by team size

Top 25 of 160 algorithm trading platforms based in London, United Kingdom, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Finiq Consulting	London	201-500	513	194
2	Instinet Incorporated	London	501-1,000	511	320
3	Fidessa	London	1,001-5,000	489	206
4	IT Software	London	51-200	425	8
5	XTX Markets	London	51-200	271	179
6	Finalto	London	201-500	214	134
7	Quadrature	London	51-200	202	167
8	Etrading Software	London	201-500	194	86
9	Onezero Financial Systems	London	201-500	172	138
10	OSTC	London	201-500	146	8
11	Blackwell Global	London	51-200	108	14
12	Edgewater Markets	London	51-200	92	56
13	Equity Edge	London	11-50	76	1
14	Caplin Systems	London	51-200	68	39
15	wematch.live	London	51-200	63	52
16	OTCX	London	51-200	48	39
17	Advanced Markets Group	London	51-200	48	26
18	Reactive Markets	London	11-50	40	33
19	Rapid Addition	London	51-200	39	31
20	KEY To Markets	London	11-50	31	7
21	Gatelab	London	51-200	30	21
22	Fenics	London	51-200	27	6
23	Quadra	London	11-50	24	12
24	Exberry	London	11-50	21	13
25	Chronicle Software	London	11-50	19	16

Showing 25 of 160 algorithm trading platforms based in London, United Kingdom

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Algorithm trading platforms based in London, United Kingdom at a glance

As of Aug 28, 2026

11-50Median size (employees)

LondonLargest hub · 160 HQs

569Contacts with mobile numbers

6Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Algorithm trading platforms by metro in the United Kingdom

Metro	Companies
Algorithm trading platforms in London	160
Algorithm trading platforms in Manchester	2
Algorithm trading platforms in Exeter	2
Algorithm trading platforms in Londra	2
Algorithm trading platforms in Harrow	2
Algorithm trading platforms in Bromley	1
Algorithm trading platforms in Glasgow	1

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “algorithm trading platforms”, with match quality audited by blind human judging, and headquartered in London, United Kingdom.
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: Contact records re-verify on a rolling cadence; 6 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many algorithm trading platforms are there based in London, United Kingdom?

There are 160 algorithm trading platforms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most algorithm trading platforms?

London leads with 160 headquartered companies, followed by Manchester (2) and Exeter (2).

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 1,970 verified decision-maker contacts tracked across these 160 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.