Company lists · Data refreshed September 2026

Top 25 Online car auction platforms based in the United States

Name: Online car 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 29, 2026 996 companies tracked

RevenueBase identified 996 online car auction platforms headquartered in the United States as of September 2026 and tracks 52,781 professional contacts across them, including 18,928 with verified work emails. Houston is the largest hub.

This list covers online car 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, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

996Companies

52,781Contacts tracked

18,928Verified emails

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The 25 largest online car auction platforms based in the United States

Ranked by team size

Top 25 of 996 online car auction platforms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to online car auction platforms: 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	COX Automotive INC	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	8,503 contacts →
	Indirect evidence “Cox Automotive is the world’s largest automotive services and technology provider.” Source: RevenueBase Database · checked Sep 29, 2026
2	Carvana	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 29, 2026	10001+	6,413 contacts →
	Partial evidence “Carvana (NYSE: CVNA) is an industry pioneer for buying and selling used vehicles online.” Source: RevenueBase Database · checked Sep 29, 2026
3	Openlane	Partial evidence	Carmel, IN, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,718 contacts →
	Partial evidence “We’re a tight-knit team of fearless entrepreneurs and diverse waybuilders redefining how used cars are bought and sold everyday.” Source: RevenueBase Database · checked Sep 29, 2026
4	Manheim By COX Automotive	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	10001+	4,555 contacts →
	Partial evidence “For great career opportunities, visit Manheim was established in 1945 as a wholesale vehicle auction operation.” Source: RevenueBase Database · checked Sep 29, 2026
5	Copart	Strong evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	5,001-10,000	4,356 contacts →
	Strong evidence “Copart, a global online auto auction company headquartered in Dallas, Texas is a top-performing S&P 500 company, as noted by The Wall Street Journal.” Source: RevenueBase Database · checked Sep 29, 2026
6	Cars Commerce	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,311 contacts →
	Partial evidence “Cars Commerce is an audience-driven technology company empowering automotive that simplifies everything about buying and selling cars.” Source: RevenueBase Database · checked Sep 29, 2026
7	IAA	Indirect evidence	Westchester, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,173 contacts →
	Indirect evidence “IAA Holdings, LLC (IAA), an RB Global company (NYSE: RBA)(TSX: RBA), is a trusted global marketplace for insights, services, and transaction solutions for commercial assets and…” Source: RevenueBase Database · checked Sep 29, 2026
8	ACV Auctions	Indirect evidence	Buffalo, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,749 contacts →
	Indirect evidence “ACV is a high growth technology company that provides a vibrant digital marketplace for wholesale vehicle transactions and data services.” Source: RevenueBase Database · checked Sep 29, 2026
9	Cargurus	Partial evidence	Boston, MA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,312 contacts →
	Partial evidence “CarGurus was founded in 2006 in Cambridge, Massachusetts by Langley Steinert, co-founder of TripAdvisor, who saw an opportunity to create a better car-shopping experience using…” Source: RevenueBase Database · checked Sep 29, 2026
10	Autotrader US	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,094 contacts →
	Partial evidence “Autotrader is the most visited third-party car shopping site, attracting the largest and most engaged audience of in-market car shoppers.” Source: RevenueBase Database · checked Sep 29, 2026
11	Trader Interactive	Partial evidence	Virginia Beach, VA, United StatesHQ checked Sep 29, 2026	201-500	575 contacts →
	Partial evidence “Trader Interactive is the leading provider of online market places and digital marketing products serving the lifestyle vehicles and commercial equipment segments.” Source: RevenueBase Database · checked Sep 29, 2026
12	ADESA	Indirect evidence	Carmel, IN, United StatesHQ checked Sep 29, 2026	1,001-5,000	543 contacts →
	Indirect evidence “ADESA U.S.” Source: RevenueBase Database · checked Sep 29, 2026
13	VROOM	Indirect evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	501-1,000	514 contacts →
	Indirect evidence “On January 22, 2024, Vroom announced that it is discontinuing its e-commerce operations and winding down its used vehicle dealership business.” Source: RevenueBase Database · checked Sep 29, 2026
14	Truecar, INC	Indirect evidence	Santa Monica, CA, United StatesHQ checked Sep 29, 2026	201-500	430 contacts →
	Indirect evidence “At TrueCar, we’re all drivers.” Source: RevenueBase Database · checked Sep 29, 2026
15	Purple Wave Auction	Strong evidence	Manhattan, KS, United StatesHQ checked Sep 29, 2026	201-500	385 contacts →
	Strong 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, 2026
16	Everything BUT The House Ebth	Strong evidence	Blue Ash, OH, United StatesHQ checked Sep 29, 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 29, 2026
17	America's Group	Partial evidence	Carmel, IN, United StatesHQ checked Sep 29, 2026	1,001-5,000	376 contacts →
	Partial evidence “America's Auto Auction is a leading automotive remarketing company that facilitates transactions between buyers and sellers through 50+ auction locations, multiple mobile…” Source: RevenueBase Database · checked Sep 29, 2026
18	auction.com	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	501-1,000	368 contacts →
	Strong 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, 2026
19	Nowcom	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	266 contacts →
	Partial evidence “Founded in 1996, Nowcom quickly evolved into a leading provider of Internet applications and business solutions for the used car market.” Source: RevenueBase Database · checked Sep 29, 2026
20	SHIFT	Strong evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	231 contacts →
	Strong evidence “Shift (NASDAQ: SFT) is a leading end-to-end auto ecommerce platform transforming the used car industry with a technology-driven, hassle-free customer experience.” Source: RevenueBase Database · checked Sep 29, 2026
21	Wheelzy	Partial evidence	Orlando, FL, United StatesHQ checked Sep 29, 2026	51-200	229 contacts →
	Partial evidence “The Fastest and Easiest Way to Sell a Car Nationwide in Minutes.” Source: RevenueBase Database · checked Sep 29, 2026
22	United Auto Recovery	Indirect evidence	Memphis, TN, United StatesHQ checked Sep 29, 2026	201-500	212 contacts →
	Indirect evidence “With a history dating back to 1973 and a scope that encompasses the entire spectrum of automotive remarketing, United Auto Recovery has positioned itself as a leader within the…” Source: RevenueBase Database · checked Sep 29, 2026
23	POP Sells	Indirect evidence	Sarasota, FL, United StatesHQ checked Sep 29, 2026	201-500	202 contacts →
	Indirect evidence “Since our founding in 2009, Pop Sells has brought joy to more than customers.” Source: RevenueBase Database · checked Sep 29, 2026
24	Bigiron	Partial evidence	St. Edward, NE, United StatesHQ checked Sep 29, 2026	51-200	200 contacts →
	Partial evidence “The sights and sounds of auctions are staples of rural America.” Source: RevenueBase Database · checked Sep 29, 2026
25	Mecum Auctions	Strong evidence	Walworth, WI, United StatesHQ checked Sep 29, 2026	51-200	182 contacts →
	Strong evidence “The Mecum Auction Company has been specializing in the sale of collector cars for 35 years, now offering an industry-leading collector cars per year.” Source: RevenueBase Database · checked Sep 29, 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 car auction 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 car auction platforms.
Partial evidence: Its own public description names part of online car auction platforms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name online car auction 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 996 online car auction platforms based in the United States

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Online car auction platforms based in the United States at a glance

As of Sep 29, 2026

35.9%Verified-email coverage

53.0Average contacts per company

11-50Median size (employees)

2.2%Largest-city concentration · Houston

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

408

11-50

321

51-200

140

201-500

501-1,000

1,001-5,000

5,001-10,000

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 996 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 car auction 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 car auction 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 car auction 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 car 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 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, 18,928 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.

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 car auction 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 car auction platforms are there based in the United States?

RevenueBase identified 996 online car 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?

COX Automotive INC, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most online car auction platforms?

Houston leads with 22 headquartered companies, followed by New York (22) and Los Angeles (20).

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 18,928 verified decision-maker contacts tracked across these 996 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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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.