Company lists · Data refreshed September 2026
Top 25 Procurement process outsourcing firms based in the United Kingdom
RevenueBase identified 667 procurement process outsourcing firms headquartered in the United Kingdom as of September 2026 and tracks 8,625 professional contacts across them, including 3,716 with verified work emails. London is the largest hub.
This list covers procurement process outsourcing firms 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.
The 25 largest procurement process outsourcing firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,304 contacts → | ||||
Partial evidence “Efficio is a global leader in procurement and supply chain management and transformation.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 418 contacts → | ||||
Partial evidence “Proxima works with Chief Procurement Officers who expect procurement to deliver measurable performance, support growth, and lead with confidence.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 354 contacts → | ||||
Partial evidence “Vertice is the intelligent procurement platform built for the modern enterprise.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 221 contacts → | ||||
Partial evidence “Proud to be celebrating our 40th anniversary, BiP makes the business of public sector procurement more effective by increasing transparency, competition and overall efficiency.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 217 contacts → | ||||
Strong evidence “TMS Global is a procurement outsourcing business and are a wholly owned subsidiary of DS Smith PLC, a FTSE100 listed multi-national packaging and display manufacturing business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 183 contacts → | ||||
Partial evidence “Foodbuy Group is a leading procurement organisation based in the UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 146 contacts → | ||||
Partial evidence “Procurement Leaders™ is the world’s largest and most valued procurement network and intelligence platform.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 119 contacts → | ||||
Partial evidence “The Charles Kendall Group is one of the world's leading procurement, logistics and consultancy businesses.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 92 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 90 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 11 | 80 contacts → | ||||
Indirect evidence “Purchase Direct provides outsourced purchasing services to businesses requiring long term management and control of their overhead purchasing.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 71 contacts → | ||||
Indirect evidence “Applegate Marketplace helps buyers source the products and services they require for their business.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 66 contacts → | ||||
Strong evidence “United simplifies procurement of non-food consumables for multi-site businesses across the hospitality industry, consolidating everything into one streamlined process.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 65 contacts → | ||||
Partial evidence “Procure4 helps organizations unlock capital, reduce costs, improve spend visibility, and build high-performing procurement functions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 64 contacts → | ||||
Indirect evidence “Amici provides a purchasing and supply chain management service, allowing biotech organisations to focus on discovering life changing innovations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 61 contacts → | ||||
Indirect evidence “SAVING BUSINESSES TIME AND MONEY: By leveraging the size and scale of our business and the collective purchasing power of over Regency members, we help organisations to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 58 contacts → | ||||
Partial evidence “Atamis is a leading UK procurement software provider that increases efficiencies throughout the strategic sourcing cycle.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 54 contacts → | ||||
Partial evidence “YourShortlist® is a technology consultancy using procurement best practice and data insights to save companies time and money.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 53 contacts → | ||||
Partial evidence “Established in 2007, Constellia is a leading procurement solutions provider, managing over £400 million of spend across more than 250 public and private sector organisations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 52 contacts → | ||||
Partial evidence “Since 1987, Inprova has provided cutting-edge procurement and supply chain management solutions to customers across the public and private sectors.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 46 contacts → | ||||
Partial evidence “State of Flux is a global procurement and supply chain consultancy headquartered in London, UK.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 42 contacts → | ||||
Partial evidence “Founded in 1991 the organisation has evolved by offering a range of tailored procurement solutions designed to fit the needs of businesses who wish to improve the efficiency of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 41 contacts → | ||||
Strong evidence “Datum RPO are experts in procuring and managing Contingent Workforce Solutions (CWS) and Permanent Workforce Solutions (PWS) and provide a complete Recruitment Process Outsourcing…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 39 contacts → | ||||
Partial evidence “For the last 30 years, since our inception, we have been delivering unique and highly professional procurement services to our clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 36 contacts → | ||||
Partial evidence “Barkers is a multi-award-winning, carbon neutral, procurement consultancy offering specialist procurement and supply services across a variety of industries including the utility…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: procurement process outsourcing firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names procurement process outsourcing firms.
- Partial evidence
- Its own public description names part of procurement process outsourcing firms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name procurement process outsourcing firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 667 procurement process outsourcing firms based in the United Kingdom
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Procurement process outsourcing firms based in the United Kingdom at a glance
As of Sep 29, 2026Companies by employee count
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 667 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 procurement process outsourcing firms, 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 “procurement process outsourcing firms”. 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 procurement process outsourcing firms), 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 procurement process outsourcing firms, 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, 3,716 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.
Procurement process outsourcing firms 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 procurement process outsourcing firms, 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 procurement process outsourcing firms are there based in the United Kingdom?
RevenueBase identified 667 procurement process outsourcing firms 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?
Efficio, headquartered in London, tops this list with the largest team on record.
Which city has the most procurement process outsourcing firms?
London leads with 176 headquartered companies, followed by Manchester (17) and Bristol (11).
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 3,716 verified decision-maker contacts tracked across these 667 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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Procurement process outsourcing firms by geography
- Procurement process outsourcing firms based in Brisbane, Australia
- Procurement process outsourcing firms based in Melbourne, Australia
- Procurement process outsourcing firms based in Sydney, Australia
- Procurement process outsourcing firms based in Toronto, Canada
- Procurement process outsourcing firms based in Paris, France
- Procurement process outsourcing firms based in Bangalore, India
- Procurement process outsourcing firms based in Mumbai, India
- Procurement process outsourcing firms based in Noida, India
- Procurement process outsourcing firms based in Pune, India
- Procurement process outsourcing firms based in Singapore, Singapore
- Procurement process outsourcing firms based in Johannesburg, South Africa
- Procurement process outsourcing firms based in Madrid, Spain
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.
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