Company lists · Data verified August 2026

Top 25 Algorithmic trading software companies based in London, United Kingdom

Name: Algorithmic trading software companies 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 171 companies tracked

There are 171 algorithmic trading software companies headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 2,740 professional contacts across them, including 1,107 with verified work emails and 350 with mobile numbers. London is the largest hub.

This list covers algorithmic trading software companies 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.

171Companies

2,740Contacts tracked

1,107Verified emails

350Mobile numbers

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The 25 largest algorithmic trading software companies based in London, United Kingdom

Ranked by team size

Top 25 of 171 algorithmic trading software companies 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	IT Software	London	51-200	425	8
4	Quadrature	London	51-200	202	167
5	Onezero Financial Systems	London	201-500	172	138
6	Equity Edge	London	11-50	76	1
7	Caplin Systems	London	51-200	68	39
8	Pulsar	London	51-200	66	39
9	Takeprofit	London	11-50	43	21
10	Gatelab	London	51-200	30	21
11	Tyler Capital	London	11-50	27	12
12	Fenics	London	51-200	27	6
13	Quadra	London	11-50	24	12
14	Tradepoint Systems	London	11-50	22	15
15	Chronicle Software	London	11-50	19	16
16	Longshot Systems	London	11-50	18	14
17	BESTX	London	11-50	18	11
18	Prismfp Analytics	London	11-50	13	12
19	Arctic Lake	London	11-50	11	10
20	Queueco	London	11-50	11	6
21	ABEX	London	11-50	10	4
22	link.investments	London	11-50	7	1
23	Cingulait	London	11-50	3	2
24	Aquis Technologies	London	51-200	2	1
25	Sigma Financial AI	London	11-50	2	1

Showing 25 of 171 algorithmic trading software companies based in London, United Kingdom

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Algorithmic trading software companies based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 171 HQs

350Contacts with mobile numbers

2Emails re-verified in last 30 days

Companies by employee count

1-10

104

11-50

51-200

201-500

501-1,000

Algorithmic trading software companies by metro in the United Kingdom

Metro	Companies
Algorithmic trading software companies in London	171
Algorithmic trading software companies in Manchester	3
Algorithmic trading software companies in Birmingham	3
Algorithmic trading software companies in Cambridge	2
Algorithmic trading software companies in Exeter	2
Algorithmic trading software companies in Londra	2
Algorithmic trading software companies in Harrow	2

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 “algorithmic trading software companies”, 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; 2 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 algorithmic trading software companies are there based in London, United Kingdom?

There are 171 algorithmic trading software companies 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 algorithmic trading software companies?

London leads with 171 headquartered companies, followed by Manchester (3) and Birmingham (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 1,107 verified decision-maker contacts tracked across these 171 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.