Company lists · Data refreshed September 2026
Top 25 Online bidding platforms based in the United States
RevenueBase identified 501 online bidding platforms headquartered in the United States as of September 2026 and tracks 29,173 professional contacts across them, including 8,766 with verified work emails. New York is the largest hub.
This list covers online bidding platforms headquartered in the United States, 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 online bidding platforms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 20,791 contacts → | ||||
Indirect evidence “At eBay, we create pathways to connect millions of sellers and buyers in more than 190 markets around the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,261 contacts → | ||||
Indirect evidence “In a world where consumers increasingly value self-expression and individuality, the market for hard-to-find fashion, collectibles, and electronics has never been hotter.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 781 contacts → | ||||
Partial evidence “Liquidity Services (NASDAQ: LQDT) operates the world’s largest B2B e-commerce marketplace platform for surplus assets with over $10 billion in completed transactions to more than…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 744 contacts → | ||||
Partial evidence “eBay is one of the world’s largest online marketplaces, connecting people with the things they need and love virtually anytime, anywhere.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 501 contacts → | ||||
Indirect evidence “We move real estate forward.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 385 contacts → | ||||
Partial evidence “Purple Wave Auction is the leading auction platform redefining auctions and how you buy and sell heavy equipment!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 378 contacts → | ||||
Partial evidence “Everything But The House (EBTH) is a premier online auction marketplace offering a seamless, fully authenticated experience for buying and selling secondhand goods.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 368 contacts → | ||||
Partial evidence “To view open positions with Auction.com, please visit Transforming Real Estate: Auction.com Is the Nation’s Leading Auction Platform for Foreclosure, including Sheriff's Sale…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 200 contacts → | ||||
Indirect evidence “The sights and sounds of auctions are staples of rural America.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 169 contacts → | ||||
Partial evidence “JJ Kane Auctioneers specializes in conducting both timed online auctions and online government auctions that are open to the public.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 157 contacts → | ||||
Indirect evidence “Buy from your desk, and sell from your yard!” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 113 contacts → | ||||
Indirect evidence “Bring a Trailer is a part of Hearst Autos family.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 110 contacts → | ||||
Partial evidence “BidFTA.com is an online auction marketplace for both buyers and sellers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 89 contacts → | ||||
Strong evidence “Invaluable is the world’s largest online marketplace of fine and decorative arts, antiques and collectibles, featuring a live online bidding platform that allows collectors and…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 85 contacts → | ||||
Indirect evidence “Worthy.com is the leading website for jewelry owners to sell their diamonds, fine jewelry, and luxury watches.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 73 contacts → | ||||
Partial evidence “Auction Nation is the nationwide leader for online auctions.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 67 contacts → | ||||
Indirect evidence “Located in Dallas, Texas, and boasting 9 years of expertise in the auction industry, Auction Software is your go-to enterprise solution for auction management, offering a…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 65 contacts → | ||||
Partial evidence “EnergyNet was originally formed in as the first, and leading, online oil and gas marketplace for buyers and sellers to transact on their own terms and timelines.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 56 contacts → | ||||
Indirect evidence “Del Peterson & Associates was founded in 1972 by Del Peterson.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 55 contacts → | ||||
Partial evidence “HiBid is a market leader in the online auction space actively supporting over a million concurrent lots at any given time with bidders able to participate via webcast…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 51 contacts → | ||||
Partial evidence “LiveAuctioneers is the leading online auction marketplace for one-of-a-kind items, rare collectibles and coveted goods.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 45 contacts → | ||||
Indirect evidence “RealEstateAuctions.com (REA) is a leader in U.S.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 44 contacts → | ||||
Indirect evidence “CrankyApe.com is proud to partner with some of the largest, most prestigious financial institutions, insurance companies, public agencies and charity organizations in the United…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 44 contacts → | ||||
Strong evidence “Proxibid offers the most secure online auction platform in the industry, connecting buyers and sellers from all over the world.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 42 contacts → | ||||
Indirect evidence “PropertyRoom.com makes it remarkably easy for our 4,300+ clients to manage and liquidate surplus assets.” 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: online bidding platforms. 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 online bidding platforms.
- Partial evidence
- Its own public description names part of online bidding platforms, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name online bidding platforms. 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 501 online bidding platforms based in the United States
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Online bidding platforms based in the United States at a glance
As of Sep 29, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 501 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 online bidding platforms, 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 States whose own description of what they do matches “online bidding platforms”. 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 online bidding platforms), 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 online bidding platforms, and records with no verified work email. Companies headquartered outside United States 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, 8,766 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.
Online bidding platforms 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 online bidding platforms, 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 online bidding platforms are there based in the United States?
RevenueBase identified 501 online bidding platforms headquartered in the United States 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?
EBAY, headquartered in San Jose, tops this list with the largest team on record.
Which city has the most online bidding platforms?
New York leads with 27 headquartered companies, followed by Los Angeles (13) and San Francisco (8).
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 8,766 verified decision-maker contacts tracked across these 501 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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Online bidding platforms by geography
- Online bidding platforms based in Sao Paulo, Brazil
- Online bidding platforms based in London, United Kingdom
- Online bidding platforms based in New York, United States
- Online bidding platforms based in Australia
- Online bidding platforms based in Belgium
- Online bidding platforms based in Brazil
- Online bidding platforms based in Canada
- Online bidding platforms based in France
- Online bidding platforms based in Germany
- Online bidding platforms based in India
- Online bidding platforms based in Italy
- Online bidding platforms based in the Netherlands
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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