Company lists · Data refreshed October 2026

Top 25 Api and integration platform companies based in the United Kingdom

RevenueBase identified 105 company matches for api and integration platform companies associated with the United Kingdom as of October 2026 and tracks 1,645 professional contacts across them, including 624 with verified work emails. London is the largest hub.

This list covers company matches for api and integration platform companies associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 1, 2026 How this list was built
105Companies
1,645Contacts tracked
624Verified emails
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The 25 largest api and integration platform companies based in the United Kingdom

Ranked by team size
Top 25 of 105 company matches for api and integration platform companies based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 1, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200126 contacts →

Exact match

“interop.io was formed in June 2023 through the merger of Finsemble and Glue42, creating a global leader in application interoperability and enterprise AI enablement for capital…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-200120 contacts →

Exact match

“Tyk is a leading API Management Platform.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Oct 1, 2026201-500105 contacts →

Exact match

“Welcome to the home of NTT Ltd.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20089 contacts →

Exact match

“Integrate your systems, create a single trusted view of data and access real-time insights – all in one cloud-native solution.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20082 contacts →

Exact match

“Integrella is a specialist IT services company with extensive experience across UK sectors.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
6Exact matchHolborn, United KingdomHQ recorded Oct 1, 202651-20072 contacts →

Exact match

“Infoteck Solutions: Empowering Integration and Automation Welcome to Infoteck Solutions, your trusted partner in seamless integration and efficient automation.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20067 contacts →

Exact match

“Patchworks is an enterprise-grade integration and automation platform that helps organisations connect systems, orchestrate workflows and move faster.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20047 contacts →

Exact match

“Pace Integration is a unique technology consultancy that solves your integration challenge – focused on enterprise systems integration strategy, architecture and design that is…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Oct 1, 202651-20036 contacts →

Exact match

“Most businesses don't have a CRM problem.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
10Exact matchPoole, United KingdomHQ recorded Oct 1, 202651-20035 contacts →

Exact match

“Codeless Platforms helps ERP-driven organisations connect systems and automate business processes.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
11Exact matchCroydon, United KingdomHQ recorded Oct 1, 202611-5034 contacts →

Exact match

“Cyclr is an embedded integration platform (embedded iPaaS) and MCP PaaS vendor for SaaS and AI applications.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5026 contacts →

Exact match

“We connect your CRM, ERP, AI and Cloud systems, bridging internal platforms and external tools so your data flows cleanly, your processes run automatically, and your business…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
13Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Oct 1, 202611-5025 contacts →

Exact match

“Zynk is one of leading Integration Platform as a Service providers specializing in accounting data integration.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
14Exact matchNewmarket, United KingdomHQ recorded Oct 1, 2026201-50023 contacts →

Exact match

“Beyond is a unifying company for the three outstanding companies; Wonde, Evouchers and Secure Schools.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5023 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5017 contacts →

Exact match

“Coliance is an IBM Gold Partner with deep expertise in B2B integration, EDI and managed file transfer.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
17Exact matchPlymouth, United KingdomHQ recorded Oct 1, 202611-5017 contacts →

Exact match

“We are a Hybrid Integration Solutions and professional services company delivering Application Integration, B2B Community Integration and Managed File Transfer to medium and large…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
18Exact matchOxford, United KingdomHQ recorded Oct 1, 202611-5013 contacts →

Exact match

“OX.DH is a cloud-native open API platform integrated across medical pathways, and secure by design.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5012 contacts →

Exact match

“At Cloudorizon, we specialise in seamless data and process integrations to boost efficiency and drive growth.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
20Exact matchWembley, United KingdomHQ recorded Oct 1, 20261-1012 contacts →

Exact match

“Mozrest is the integration layer built for the modern hospitality tech stack.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
21Exact matchSutton, United KingdomHQ recorded Oct 1, 202651-20011 contacts →

Exact match

“At Adaptris our mantra is Integration Anywhere.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“Your trusted partner for API and Integration Ecosystem transformations - Military precision, expertly executed."We believe that what is expected of your systems integrator is…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
23Exact matchCambridge, United KingdomHQ recorded Oct 1, 202611-5010 contacts →

Exact match

“Roundpoint integrates web and mobile so that companies can have a more direct relationship with their customers, staff and suppliers.”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
24Exact matchAlderley Edge, United KingdomHQ recorded Oct 1, 202611-508 contacts →

Exact match

“Techonomy Your Services Integrator and Aggregator Introducing our groundbreaking multi-service aggregation, is a dynamic ecosystem where diverse technologies and services…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase
25Exact matchNantwich, United KingdomHQ recorded Oct 1, 202611-507 contacts →

Exact match

“Rare Earth Digital helps organisations modernise and optimise their technology through smart integrations, APIs, automation, cloud solutions, and custom software that actually…”

Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase

Showing 25 of 105 api and integration platform companies based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 624 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api and integration platform companies based in the United Kingdom at a glance

As of Oct 1, 2026
37.9%Verified-email coverage
15.7Average contacts per company
1-10Median size (employees)
46.7%Largest-city concentration · London
Oct 1, 2026Page data refreshed

Companies by employee count

1-10
54
11-50
34
51-200
14
201-500
3

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 105 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “api and integration platform companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 624 professional contacts with verified work emails across the full matched dataset. 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 October 1, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Api and integration platform companies by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “api and integration platform companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api and integration platform companies are there based in the United Kingdom?

RevenueBase identified 105 company matches for api and integration platform companies associated with the United Kingdom as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

interop.io tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most api and integration platform companies?

London leads with 49 company records, followed by Manchester (3) and Reading (3).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 624 professional contacts with verified work emails tracked across these 105 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 1, 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 SmartSearch, 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.