Company lists · Data refreshed September 2026
Top 25 Online auction platforms based in the United Kingdom
RevenueBase identified 166 online auction platforms headquartered in the United Kingdom as of September 2026 and tracks 1,456 professional contacts across them, including 616 with verified work emails and 197 with mobile numbers. London is the largest hub.
This list covers online auction platforms 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest online auction platforms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 371 | ||||
“A global technology company with over 450 employees, ATG is transforming the way billions of pounds, euros and dollars' worth of items are bought and sold globally via auction.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 209 | ||||
“Gumtree is one of the UK’s most popular online classifieds platforms, connecting millions of people every month to buy, sell, and trade locally - something we’ve done since But…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 127 | ||||
“Euro Auctions has been specializing in conducting unreserved auctions of Industrial Equipment and Construction Machinery since 1998 and continues to go from strength to strength.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 75 | ||||
“Collecting Cars is the leading global digital auction platform for collectible cars, bikes, and automobilia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 39 | ||||
“We’re transforming property auctions, making buying and selling fast, fuss-free, and secure.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 38 | ||||
“Be part of the world's most entertaining, unconventional and revolutionary e-commerce company and work daily with your favourite brands.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 26 | ||||
“We are one of Europe's largest auctioneers, with over 70 years' auction experience, we work with top retailers, distributors and manufacturers to bring well-known brands to…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 24 | ||||
“Under the Hammer is the UK's online property auction platform.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 22 | ||||
“Live Online Bidding at Real Auction Houses BROWSE, BID, BUY Products Live Auction Bidding Timed Auction Bidding Auction Management Software White Label Websites (Live/Timed…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Truck And Plant Asset Management LimitedStrong evidence | 19 | |||
“Online auction specialising in commercial vehicles and plant.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 16 | ||||
“Based in the heart of Surrey, Wellers Auctions, have a wealth of experience in bringing to you an exciting array of weekly & monthly auctions via live and timed auction platforms…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 15 | ||||
“Artisio is a complete front-to-back auction management software solution & online bidding platform, that helps businesses run online auctions and streamline auction back office…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 15 | ||||
“NovaFori specialises in designing, building and operating highly scalable marketplace solutions powered by auction and trading technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 14 | ||||
“Auction Marketer is a leading provider of cloud and desktop-based auction software, trusted by independent auctioneers and enterprise brands alike.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 12 | ||||
“GBM is the auction system where bidders make money when they are outbid.$200M+ in bidding volume and over $6M earned by bidders to date!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 12 | ||||
“Since launching in 2021, Collecting Cars sister brand Watch Collecting has quickly established itself as a leading platform for collectible fine watches, with over 4,500 lots sold…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 10 | ||||
“WeBuyGymEquipment is the best way gym operators can maximise the amount of money they receive when trading-in their old fitness equipment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 | ||||
“Volo provides an ecommerce platform, a reporting platform and services for multichannel sellers to grow sales on marketplaces like Amazon, eBay and OnBuy, and web stores like…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 10 | ||||
“Bidlogix provides a complete solution for timed online auctions and webcast auctions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | Bonhams Cars OnlineStrong evidence | 9 | |||
“Bonhams Cars Online - Classic & Collectable Car Auctions | FREE TO SELL | Our mission is to make the buying and selling of classic and collector vehicles as transparent, secure…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 9 | ||||
“The Auction Collective is dedicated to helping clients run professional online and in-person auctions, offering professional auction software and a range of additional auction…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 | ||||
“Auction News is the UK’s longest-standing digital auction marketing and media platform.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | William GeorgeIndirect evidence | 9 | |||
“Founded in 2012, William George has consistently grown and continues to flourish and innovate.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 | ||||
“We are focused predominantly as Online Auctioneers, selling all types of manufacturing assets worldwide.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | Whoobid Property AuctioneersPartial evidence | 8 | |||
“In a market where online estate agencies are having an ever increasing share of the market and consumer demands are leading towards online services, Whoobid have taken the…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 166 online auction platforms based in the United Kingdom
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Online auction platforms based in the United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 online auction platforms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “online auction platforms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among online auction platforms, 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 an evidence 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, 616 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 5, 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.
Online auction platforms by metro
- Online auction platforms in London51
Frequently asked
How many online auction platforms are there based in the United Kingdom?
RevenueBase identified 166 online auction platforms 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?
ATG Auction Technology Group, headquartered in London, tops this list with the largest team on record.
Which city has the most online auction platforms?
London leads with 51 headquartered companies, followed by Birmingham (3) and Abingdon (2).
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 616 verified decision-maker contacts tracked across these 166 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 5, 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.
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