Company lists · Data refreshed September 2026

Top 25 Online auction marketplaces based in the United States

Name: Online auction marketplaces based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 383 companies tracked

RevenueBase identified 383 online auction marketplaces headquartered in the United States as of September 2026 and tracks 30,202 professional contacts across them, including 8,982 with verified work emails. New York is the largest hub.

This list covers online auction marketplaces 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 20, 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 20, 2026 86% judged on-target in blind review

383Companies

30,202Contacts tracked

8,982Verified emails

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The 25 largest online auction marketplaces based in the United States

Ranked by team size

Top 25 of 383 online auction marketplaces based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to online auction marketplaces: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	EBAY	Indirect evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	10001+	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 20, 2026
2	Whatnot	Indirect evidence	Los Angeles, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,378 contacts →
	Indirect evidence “Whatnot is the largest livestream shopping platform in the US, UK, and Europe.” Source: RevenueBase Database · checked Sep 20, 2026
3	Stockx	Indirect evidence	Detroit, MI, United StatesHQ checked Sep 20, 2026	1,001-5,000	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 20, 2026
4	Liquidity Services	Partial evidence	Bethesda, MD, United StatesHQ checked Sep 20, 2026	501-1,000	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 20, 2026
5	Ebay For Business	Strong evidence	San Jose, CA, United StatesHQ checked Sep 20, 2026	10001+	744 contacts →
	Strong 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 20, 2026
6	Purple Wave Auction	Partial evidence	Manhattan, KS, United StatesHQ checked Sep 20, 2026	201-500	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 20, 2026
7	Everything BUT The House Ebth	Strong evidence	Blue Ash, OH, United StatesHQ checked Sep 20, 2026	201-500	378 contacts →
	Strong 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 20, 2026
8	Bonanza	Strong evidence	Seattl, United StatesHQ checked Sep 20, 2026	n/a	313 contacts →
	Strong evidence “Bonanza.com is a fast-growing online marketplace of over 15 million items where sellers offer everything from Isometric sunglasses to Bieber perfume.” Source: RevenueBase Database · checked Sep 20, 2026
9	Bigiron	Partial evidence	St. Edward, NE, United StatesHQ checked Sep 20, 2026	51-200	200 contacts →
	Partial evidence “The sights and sounds of auctions are staples of rural America.” Source: RevenueBase Database · checked Sep 20, 2026
10	Bidadoo	Indirect evidence	Kent, WA, United StatesHQ checked Sep 20, 2026	51-200	157 contacts →
	Indirect evidence “Buy from your desk, and sell from your yard!” Source: RevenueBase Database · checked Sep 20, 2026
11	Buyerlink	Strong evidence	Walnut Creek, CA, United StatesHQ checked Sep 20, 2026	51-200	115 contacts →
	Strong evidence “Buyerlink is a leading online auction marketplace for performance-based marketing.” Source: RevenueBase Database · checked Sep 20, 2026
12	Bring A Trailer Media LLC	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 20, 2026	51-200	113 contacts →
	Indirect evidence “Bring a Trailer is a part of Hearst Autos family.” Source: RevenueBase Database · checked Sep 20, 2026
13	Bidfta Online Auctions	Strong evidence	Cincinnati, United StatesHQ checked Sep 20, 2026	201-500	110 contacts →
	Strong evidence “BidFTA.com is an online auction marketplace for both buyers and sellers.” Source: RevenueBase Database · checked Sep 20, 2026
14	Invaluable	Strong evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	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 20, 2026
15	Goldin	Indirect evidence	Runnemede, NJ, United StatesHQ checked Sep 20, 2026	51-200	89 contacts →
	Indirect evidence “The Global Destination for High-End Collectibles All Eight Episodes of Season 2 of "King of Collectibles: The Goldin Touch" NOW PLAYING on Netflix Email us at Sell@Goldin.co to…” Source: RevenueBase Database · checked Sep 20, 2026
16	Etsy USA	Partial evidence	Brooklyn, United StatesHQ checked Sep 20, 2026	1,001-5,000	86 contacts →
	Partial evidence “Etsy is the global marketplace for unique and creative goods.” Source: RevenueBase Database · checked Sep 20, 2026
17	worthy.com	Indirect evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	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 20, 2026
18	Auction Nation	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 20, 2026	11-50	73 contacts →
	Strong evidence “Auction Nation is the nationwide leader for online auctions.” Source: RevenueBase Database · checked Sep 20, 2026
19	Auction Software	Partial evidence	Richardson, TX, United StatesHQ checked Sep 20, 2026	11-50	67 contacts →
	Partial 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 20, 2026
20	Bonhams Skinner	Partial evidence	Boston, MA, United StatesHQ checked Sep 20, 2026	51-200	63 contacts →
	Partial evidence “Renowned New England auction house Bonhams Skinner holds over 60 auctions a year in 20 collecting categories – including Americana, fine art, collectables and wine, and ranging…” Source: RevenueBase Database · checked Sep 20, 2026
21	Hibid Auctions	Strong evidence	Lincoln, NE, United StatesHQ checked Sep 20, 2026	501-1,000	55 contacts →
	Strong 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 20, 2026
22	Pristine Auction	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 20, 2026	51-200	53 contacts →
	Strong evidence “Pristine Auction is a family owned and operated online auction, specializing in autographed memorabilia, sports cards, coins, art and collectibles.” Source: RevenueBase Database · checked Sep 20, 2026
23	Liveauctioneers	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	51-200	51 contacts →
	Strong evidence “LiveAuctioneers is the leading online auction marketplace for one-of-a-kind items, rare collectibles and coveted goods.” Source: RevenueBase Database · checked Sep 20, 2026
24	Proxibid	Strong evidence	New York, NY, United StatesHQ checked Sep 20, 2026	201-500	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 20, 2026
25	propertyroom.com	Indirect evidence	Frederick, MD, United StatesHQ checked Sep 20, 2026	51-200	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 20, 2026

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 auction marketplaces. 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 auction marketplaces.
Partial evidence: Its own public description names part of online auction marketplaces, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name online auction marketplaces. 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 383 online auction marketplaces based in the United States

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Online auction marketplaces based in the United States at a glance

As of Sep 20, 2026

29.7%Verified-email coverage

78.9Average contacts per company

1-10Median size (employees)

6.5%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

197

11-50

126

51-200

201-500

501-1,000

1,001-5,000

10001+

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 383 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 auction marketplaces, 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 auction marketplaces”. 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 auction marketplaces), 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 auction marketplaces, 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, 8,982 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 20, 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 marketplaces by metro

Online auction marketplaces in New York25

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 auction marketplaces, 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 auction marketplaces are there based in the United States?

RevenueBase identified 383 online auction marketplaces 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 auction marketplaces?

New York leads with 25 headquartered companies, followed by Los Angeles (11) and San Francisco (9).

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 8,982 verified decision-maker contacts tracked across these 383 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 20, 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.