Company lists · Data refreshed September 2026

Top 24 Purchase-to-pay platform companies based in the United Kingdom

RevenueBase identified 96 purchase-to-pay platform companies headquartered in the United Kingdom as of September 2026 and tracks 2,129 professional contacts across them, including 870 with verified work emails. London is the largest hub.

This list covers purchase-to-pay platform companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review
96Companies
2,129Contacts tracked
870Verified emails
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The 24 largest purchase-to-pay platform companies based in the United Kingdom

Ranked by team size
Top 24 of 96 purchase-to-pay platform companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to purchase-to-pay platform companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWetherby, United KingdomHQ checked Sep 29, 2026201-500347 contacts →

Partial evidence

“Proactis is a leading Source-to-Pay software solution provider for service-led industries.”

Source: RevenueBase Database · checked Sep 29, 2026
2Indirect evidenceLondon, United KingdomHQ checked Sep 29, 2026201-500176 contacts →

Indirect evidence

“At the heart of the global marketplace are the billions of transactions that happen every day.”

Source: RevenueBase Database · checked Sep 29, 2026
3Indirect evidenceWitney, United KingdomHQ checked Sep 29, 202651-200130 contacts →

Indirect evidence

“Webexpenses is a leading provider of Expense Management, Invoice Processing, and Payments solutions, helping businesses of all sizes across 70+ countries streamline processes and…”

Source: RevenueBase Database · checked Sep 29, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20092 contacts →

Indirect evidence

“Since 2016, Nomia has partnered with organisations globally to bring greater clarity, control, and efficiency to non-strategic spend.”

Source: RevenueBase Database · checked Sep 29, 2026
5Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20090 contacts →

Indirect evidence

“As the world’s first cloud-based procurement technology company, we at ELCOM have focused decades of know-how on pioneering flexible proprietary technology with one aim: to help…”

Source: RevenueBase Database · checked Sep 29, 2026
6Indirect evidenceBarnstaple, United KingdomHQ checked Sep 29, 202611-5071 contacts →

Indirect evidence

“Applegate Marketplace helps buyers source the products and services they require for their business.”

Source: RevenueBase Database · checked Sep 29, 2026
7Indirect evidenceCardiff, United KingdomHQ checked Sep 29, 202651-20058 contacts →

Indirect evidence

“Atamis is a leading UK procurement software provider that increases efficiencies throughout the strategic sourcing cycle.”

Source: RevenueBase Database · checked Sep 29, 2026
8Indirect evidenceDoncaster, United KingdomHQ checked Sep 29, 202611-5042 contacts →

Indirect evidence

“At Compleat we have one goal - to enable businesses to achieve the extraordinary.”

Source: RevenueBase Database · checked Sep 29, 2026
9Indirect evidencePreston, United KingdomHQ checked Sep 29, 202611-5039 contacts →

Indirect evidence

“We deliver cost-effective, resilient payment solutions that simplify your operations and help to boost revenue.”

Source: RevenueBase Database · checked Sep 29, 2026
10Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5037 contacts →

Indirect evidence

“Equisys produce Zetadocs: AP automation, expense management and document management solutions for Microsoft Dynamics 365 Business Central (with expense management available for…”

Source: RevenueBase Database · checked Sep 29, 2026
11Partial evidenceBirmingham, United KingdomHQ checked Sep 29, 202651-20036 contacts →

Partial evidence

“Software platforms for business transformation.”

Source: RevenueBase Database · checked Sep 29, 2026
12Indirect evidenceEdinburgh, United KingdomHQ checked Sep 29, 202651-20035 contacts →

Indirect evidence

“Over 500 UK organisations have eliminated the spreadsheets, manual processes, and costly inefficiencies that were draining their budgets and frustrating their teams.”

Source: RevenueBase Database · checked Sep 29, 2026
13Indirect evidenceBath, United KingdomHQ checked Sep 29, 202611-5029 contacts →

Indirect evidence

“We help your teams see and control what they spend, we do this by creating intuitive and easy to use software.”

Source: RevenueBase Database · checked Sep 29, 2026
14Indirect evidenceStockton-on-tees, United KingdomHQ checked Sep 29, 202611-5025 contacts →

Indirect evidence

“At Trade Interchange, we help organisations reduce the costs, risks, and complexities associated with managing a complex supply base, by providing a streamlined solution.”

Source: RevenueBase Database · checked Sep 29, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202651-20023 contacts →

Indirect evidence

“Stratas helps businesses cut manual admin by automating the document-driven processes that slow down finance, procurement, and compliance teams - from AP and supplier onboarding…”

Source: RevenueBase Database · checked Sep 29, 2026
16Partial evidenceHook, United KingdomHQ checked Sep 29, 202651-20023 contacts →

Partial evidence

“Axiom is a ProcureTech company that has developed an innovative Enterprise Marketplace, Sourcing and Tail Spend Automation platform for large global organisations.”

Source: RevenueBase Database · checked Sep 29, 2026
17Indirect evidenceKings Hill, United KingdomHQ checked Sep 29, 202651-20022 contacts →

Indirect evidence

“SourceDogg: Transforming Supply Chains Into a Strategic Advantage SourceDogg isn’t just another procurement tool.”

Source: RevenueBase Database · checked Sep 29, 2026
18Indirect evidenceKt11 1tf, United KingdomHQ checked Sep 29, 202611-5022 contacts →

Indirect evidence

“Advanced Computer Software Group plc: is a Leader in Software & IT Services - Advanced Computer Software Group plc comprises three main divisions: Business Solutions, Health &…”

Source: RevenueBase Database · checked Sep 29, 2026
19Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5018 contacts →

Indirect evidence

“FIND - Search over 6 Million IT hardware, software, parts, office, telecoms and CE products - Compare your own personalized prices in one place - Include all your suppliers + your…”

Source: RevenueBase Database · checked Sep 29, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-5017 contacts →

Indirect evidence

“The award-winning expenses solution that's designed for businesses and accountants to make managing expenses and business spending simple.”

Source: RevenueBase Database · checked Sep 29, 2026
21Indirect evidenceBelfast, United KingdomHQ checked Sep 29, 202611-5012 contacts →

Indirect evidence

“Ecom Software Limited provide cloud & on-premise productivity software solutions.”

Source: RevenueBase Database · checked Sep 29, 2026
22Indirect evidenceReading, United KingdomHQ checked Sep 29, 202611-5011 contacts →

Indirect evidence

“cloudBuy supports organisations with large numbers of transactions.”

Source: RevenueBase Database · checked Sep 29, 2026
23Partial evidenceLondon, United KingdomHQ checked Sep 29, 202611-5011 contacts →

Partial evidence

“oboloo – The Only Truly Free-Forever Procurement Software oboloo is the only procurement platform on the market that offers a genuinely free-forever plan, with no time limits, no…”

Source: RevenueBase Database · checked Sep 29, 2026
24Indirect evidenceLondon, United KingdomHQ checked Sep 29, 202611-509 contacts →

Indirect evidence

“SpendQube solves the challenge companies have of bringing together multiple sources of spend data into a single, consolidated, analysed view.”

Source: RevenueBase Database · checked Sep 29, 2026

Showing 24 of 96 purchase-to-pay platform companies based in the United Kingdom

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Purchase-to-pay platform companies based in the United Kingdom at a glance

As of Sep 29, 2026
40.9%Verified-email coverage
22.2Average contacts per company
11-50Median size (employees)
33.3%Largest-city concentration · London
Sep 29, 2026Page data refreshed

Companies by employee count

1-10
29
11-50
44
51-200
15
201-500
6
501-1,000
1
10001+
1

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 96 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among purchase-to-pay platform companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in the United Kingdom whose own description of what they do matches “purchase-to-pay platform companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names purchase-to-pay platform companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among purchase-to-pay platform companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 870 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Purchase-to-pay platform companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names purchase-to-pay platform companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many purchase-to-pay platform companies are there based in the United Kingdom?

RevenueBase identified 96 purchase-to-pay platform companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Proactis, headquartered in Wetherby, tops this list with the largest team on record.

Which city has the most purchase-to-pay platform companies?

London leads with 32 headquartered companies, followed by Edinburgh (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 the top results, verified emails and direct dials included. Upgrading unlocks all 870 verified decision-maker contacts tracked across these 96 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 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 Smart Search, 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.