Company lists · Data refreshed September 2026

Top 25 Api and integration platforms based in the United Kingdom

RevenueBase identified 57 company matches for api and integration platforms associated with the United Kingdom as of September 2026 and tracks 993 professional contacts across them, including 349 with verified work emails. London is the largest hub.

This list covers company matches for api and integration platforms 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 September 27, 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 Sep 27, 2026 How this list was built
57Companies
993Contacts tracked
349Verified emails
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The 25 largest api and integration platforms based in the United Kingdom

Ranked by team size
Top 25 of 57 company matches for api and integration platforms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200120 contacts →

Exact match

“Tyk is a leading API Management Platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-20082 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchHolborn, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
6Exact matchPoole, United KingdomHQ recorded Sep 27, 202651-20035 contacts →

Exact match

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

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchCroydon, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
9Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
10Exact matchOxford, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
11Exact matchSutton, United KingdomHQ recorded Sep 27, 202651-20011 contacts →

Exact match

“At Adaptris our mantra is Integration Anywhere.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
13Exact matchCambridge, United KingdomHQ recorded Sep 27, 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 · Sep 27, 2026 · View company records in RevenueBase
14Exact matchReading, United KingdomHQ recorded Sep 27, 20261-106 contacts →

Exact match

“We believe there is a whole lot more to successful integrations than just syncing data.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchGlasgow, United KingdomHQ recorded Sep 27, 202651-2005 contacts →

Exact match

“From award-winning business systems software developer Eureka Solutions, Besyncly, is a cloud-based integration solution that improves data communication within your business.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchAltrincham, United KingdomHQ recorded Sep 27, 202611-505 contacts →

Exact match

“Your business is running on multiple software platforms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 27, 20261-105 contacts →

Exact match

“We empower digital marketing agencies with cutting-edge data and automation solutions, helping them work smarter, not harder.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchReading, United KingdomHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Recursyv provide a fully Managed Integration Service to customers across all business verticals and geographies.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 27, 20261-104 contacts →

Exact match

“Create better API connections - We help forward-thinking trading organisations to create and manage better API connections with their trading counter-parties, through a unique…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchReading, United KingdomHQ recorded Sep 27, 202611-503 contacts →

Exact match

“Integral Zone, a MuleSoft & Salesforce partner, is at the forefront of API integration and product innovation.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Attlaz is a cloud-based integration and automation platform (iPaaS) designed to help B2B and B2C businesses streamline complex data flows and unify their technology ecosystems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 27, 20261-103 contacts →

Exact match

“HDT Integration Platform as a Service (iPaaS) provides data solutions for the B2B and B2C markets.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-503 contacts →

Exact match

“BritFin Technologies Ltd is leading industry practitioners in IT service management and automation with in-depth experience in the global financial services, retail, manufacturing…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchManchester, United KingdomHQ recorded Sep 27, 20261-103 contacts →

Exact match

“Versori builds technology for critical business infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchCambridge, United KingdomHQ recorded Sep 27, 20261-103 contacts →

Exact match

“A single platform to host and support Open Integration Engine, the drop-in open source successor to Mirth Connect™.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 57 api and integration platforms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 349 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api and integration platforms based in the United Kingdom at a glance

As of Sep 27, 2026
35.1%Verified-email coverage
17.4Average contacts per company
1-10Median size (employees)
45.6%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
30
11-50
18
51-200
9

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 57 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 platforms” 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 349 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 September 27, 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.

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 platforms”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 57 company matches for api and integration platforms associated with the United Kingdom as of September 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 platforms?

London leads with 26 company records, followed by Reading (3) and Cambridge (2).

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 349 professional contacts with verified work emails tracked across these 57 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 September 27, 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.