2025 © Copyright Proxibid 

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2025 © Copyright Proxibid 

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Over the last 50 years, ATG has expanded into new industry verticals and new geographies, through launching new marketplaces and acquiring complementary platforms. As an ATG marketplace, Proxibid has built on its reputation as a well-established and respected platform that delivers leading results for auction house and now benefits from industry-leading investment and reach and unrivaled technology and insight.

An ATG Marketplace

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Our history

ATG has been supporting the auction industry since 1971. Being a trusted partner and voice for the auction industry remains one of our driving goals, every day.

ATG has been supporting the auction industry since 1971. Being a trusted partner and voice for the auction industry remains one of our driving goals, every day.

Our history

ATG is the secure and reliable partner that helps sellers reach the right bidders, drive higher hammer prices, and simplify operations.

Ready to grow with the leading partner in the industry?

Let our team build a plan to help your auctions reach more of the right buyers—at the right time.

1971

Antiques Trade Gazette founded.

1998

ATG begins listing auction calendars online.

2006

ATG launches first live bidding for art and antiques auctions on thesaleroom.com.

2007

ATG launches i-bidder.com to cater to industrial and commercial auctions.

2010

ATG partners with BidSpotter.com in North America to launch a service dedicated to insolvency auctioneers in the UK.

2013

ATG launches Global Auction Platform (GAP) and SaaS back office for auctioneers.

ATG acquires BidSpotter.com, expanding our reach for industrial and commercial auctions into North America.

2021

ATG joins the Main Market of London Stock Exchange and becomes a publicly listed company.

2021

ATG acquires art, antiques, jewellery and collectables marketplace LiveAuctioneers, extending its offering into the North American art and antiques market.

2020

ATG and Proxibid merge under ATG management.

ATG acquires Auction Mobility, the US-based provider of customised auction software, website design and e-commerce solutions for auctioneers.

2018

ATG acquires Lot-tissimo, the leading art and antiques marketplace in Germany.

2023

ATG acquires EstateSales.NET, a leading US estate sales listing site, expanding ATG's addressable market as well as providing revenue synergy opportunities with ESN's seller and buyer bases.

Roll out of atgShip, ATG’s integrated shipping solution.

2024

Roll out of atgXL, our unique cross-listing product.