Company lists · Data verified August 2026

Top 12 Api integration platforms based in London, United Kingdom

Name: Api integration 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 35 companies tracked

There are 35 api integration platforms headquartered in London, United Kingdom (RevenueBase, August 2026). RevenueBase tracks 415 professional contacts across them, including 142 with verified work emails and 29 with mobile numbers. London is the largest hub.

This list covers api integration 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.

35Companies

415Contacts tracked

142Verified emails

29Mobile numbers

Unlock all 35 companies Free account · no credit card · 2 minutes

The 12 largest api integration platforms based in London, United Kingdom

Ranked by team size

Top 12 of 35 api integration 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	TYK	London	51-200	124	70
2	Infoteck Solutions	London	51-200	71	15
3	Patchworks	London	51-200	66	29
4	Turbosoft Limited	London	11-50	27	5
5	Cloudorizon	London	11-50	12	11
6	Ainsys	London	11-50	9	1
7	Zigaflow	London	1-10	7	5
8	Omnibyte Technologies	London	1-10	4	1
9	Attlaz	London	1-10	3	2
10	OOLYS	London	11-50	2	1
11	IATX	London	1-10	2	1
12	Datamation Global	London	1-10	1	1

Showing 12 of 35 api integration platforms based in London, United Kingdom

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 142 reachable decision-makers.

Free account · no credit card

See all 35 companies

Api integration platforms based in London, United Kingdom at a glance

As of Aug 28, 2026

1-10Median size (employees)

LondonLargest hub · 35 HQs

29Contacts with mobile numbers

0Emails re-verified in last 30 days

Companies by employee count

1-10

11-50

51-200

Api integration platforms by metro in the United Kingdom

Metro	Companies
Api integration platforms in London	35
Api integration platforms in Leeds	4
Api integration platforms in Reading	3
Api integration platforms in Exeter	3
Api integration platforms in Coventry	2
Api integration platforms in Manchester	2
Api integration platforms in Bristol	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 “api integration 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; 0 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 api integration platforms are there based in London, United Kingdom?

There are 35 api integration platforms headquartered in London, United Kingdom as of August 2026 (RevenueBase).

What is the largest company on this list?

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

Which city has the most api integration platforms?

London leads with 35 headquartered companies, followed by Leeds (4) and Reading (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 142 verified decision-maker contacts tracked across these 35 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.

Ready to reach these companies? Verified emails and direct dials for all 35 api integration platforms based in London, United Kingdom. Start with a free account, no credit card.

Get the full list

Related lists

Api integration platforms by geography

Browse the directory

Browse: Companies home · Api integration platforms in United Kingdom · All United Kingdom lists · All Api integration platforms lists · New lists

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.