Company lists · Data refreshed September 2026

Top 25 Online auction platforms based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 525 companies tracked

RevenueBase identified 525 online auction platforms headquartered in the United States as of September 2026 and tracks 34,292 professional contacts across them, including 10,690 with verified work emails and 9,364 with mobile numbers. New York is the largest hub.

This list covers online auction 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, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

525Companies

34,292Contacts tracked

10,690Verified emails

9,364Mobile numbers

Unlock all 525 companies Free signup · no credit card · 500 free credits

The 25 largest online auction platforms based in the United States

Ranked by team size

Top 25 of 525 online auction platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names online auction platforms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	EBAYIndirect evidence	San Jose, CA, United StatesHQ checked Sep 5, 2026	10001+	20,791
	“At eBay, we create pathways to connect millions of sellers and buyers in more than 190 markets around the world.” Source: company website · checked Sep 5, 2026
2	Sotheby'sIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	1,001-5,000	2,830
	“Established in 1744, Sotheby’s is the world’s premier destination for art and luxury.” Source: company website · checked Sep 5, 2026
3	WhatnotPartial evidence	Los Angeles, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,378
	“Whatnot is the largest livestream shopping platform in the US, UK, and Europe.” Source: company website · checked Sep 5, 2026
4	StockxIndirect evidence	Detroit, MI, United StatesHQ checked Sep 5, 2026	1,001-5,000	1,261
	“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: company website · checked Sep 5, 2026
5	Ebay For BusinessPartial evidence	San Jose, CA, United StatesHQ checked Sep 5, 2026	10001+	744
	“eBay is one of the world’s largest online marketplaces, connecting people with the things they need and love virtually anytime, anywhere.” Source: company website · checked Sep 5, 2026
6	ARTSYPartial evidence	New York, United StatesHQ checked Sep 5, 2026	201-500	618
	“The world’s largest online art marketplace.” Source: company website · checked Sep 5, 2026
7	Mercari USIndirect evidence	Palo Alto, CA, United StatesHQ checked Sep 5, 2026	51-200	591
	“Mercari launched in 2013 in Japan, and has since become the largest mobile marketplace in the Japanese market.” Source: company website · checked Sep 5, 2026
8	Purple Wave AuctionStrong evidence	Manhattan, KS, United StatesHQ checked Sep 5, 2026	201-500	385
	“Purple Wave Auction is the leading auction platform redefining auctions and how you buy and sell heavy equipment!” Source: company website · checked Sep 5, 2026
9	Everything BUT The House EbthStrong evidence	Blue Ash, OH, United StatesHQ checked Sep 5, 2026	201-500	378
	“Everything But The House (EBTH) is a premier online auction marketplace offering a seamless, fully authenticated experience for buying and selling secondhand goods.” Source: company website · checked Sep 5, 2026
10	auction.comStrong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	501-1,000	368
	“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: company website · checked Sep 5, 2026
11	BonanzaPartial evidence	Seattl, United StatesHQ checked Sep 5, 2026	n/a	313
	“Bonanza.com is a fast-growing online marketplace of over 15 million items where sellers offer everything from Isometric sunglasses to Bieber perfume.” Source: company website · checked Sep 5, 2026
12	HEROPartial evidence	NY, United StatesHQ checked Sep 5, 2026	51-200	300
	“The #1 virtual shopping platform.” Source: company website · checked Sep 5, 2026
13	BigironPartial evidence	St. Edward, NE, United StatesHQ checked Sep 5, 2026	51-200	200
	“The sights and sounds of auctions are staples of rural America.” Source: company website · checked Sep 5, 2026
14	BidadooIndirect evidence	Kent, WA, United StatesHQ checked Sep 5, 2026	51-200	157
	“Buy from your desk, and sell from your yard!” Source: company website · checked Sep 5, 2026
15	Bring A Trailer Media LLCIndirect evidence	San Francisco, CA, United StatesHQ checked Sep 5, 2026	51-200	113
	“Bring a Trailer is a part of Hearst Autos family.” Source: company website · checked Sep 5, 2026
16	Bidfta Online AuctionsStrong evidence	Cincinnati, United StatesHQ checked Sep 5, 2026	201-500	110
	“BidFTA.com is an online auction marketplace for both buyers and sellers.” Source: company website · checked Sep 5, 2026
17	InvaluableStrong evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	51-200	89
	“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: company website · checked Sep 5, 2026
18	GoldinIndirect evidence	Runnemede, NJ, United StatesHQ checked Sep 5, 2026	51-200	89
	“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: company website · checked Sep 5, 2026
19	worthy.comIndirect evidence	New York, NY, United StatesHQ checked Sep 5, 2026	51-200	85
	“Worthy.com is the leading website for jewelry owners to sell their diamonds, fine jewelry, and luxury watches.” Source: company website · checked Sep 5, 2026
20	Cars & BidsStrong evidence	San Diego, CA, United StatesHQ checked Sep 5, 2026	11-50	78
	“Cars & Bids is the best online auction marketplace to buy and sell enthusiast cars – and that means pretty much anything that’s cool from any era.” Source: company website · checked Sep 5, 2026
21	Auction NationStrong evidence	Phoenix, AZ, United StatesHQ checked Sep 5, 2026	11-50	73
	“Auction Nation is the nationwide leader for online auctions.” Source: company website · checked Sep 5, 2026
22	Auction SoftwarePartial evidence	Richardson, TX, United StatesHQ checked Sep 5, 2026	11-50	67
	“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: company website · checked Sep 5, 2026
23	Bonhams SkinnerPartial evidence	Boston, MA, United StatesHQ checked Sep 5, 2026	51-200	63
	“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: company website · checked Sep 5, 2026
24	Hibid AuctionsStrong evidence	Lincoln, NE, United StatesHQ checked Sep 5, 2026	501-1,000	55
	“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: company website · checked Sep 5, 2026
25	Pristine AuctionStrong evidence	Phoenix, AZ, United StatesHQ checked Sep 5, 2026	51-200	53
	“Pristine Auction is a family owned and operated online auction, specializing in autographed memorabilia, sports cards, coins, art and collectibles.” Source: company website · checked Sep 5, 2026

Showing 25 of 525 online auction platforms based in the United States

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Online auction platforms based in the United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

New YorkLargest hub · 39 HQs

9,364Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

272

11-50

177

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Verified emails by last verification

0–30

9,925

31–60

697

61–90

90–180

180+

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 States 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 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 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, 10,690 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 New York39

Frequently asked

How many online auction platforms are there based in the United States?

RevenueBase identified 525 online auction 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 auction platforms?

New York leads with 39 headquartered companies, followed by Los Angeles (13) and Miami (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 10,690 verified decision-maker contacts tracked across these 525 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.