Company lists · Data refreshed September 2026

Top 25 Multi-vendor platform developers based in the United States

Name: Multi-vendor platform developers 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 690 companies tracked

RevenueBase identified 690 multi-vendor platform developers headquartered in the United States as of September 2026 and tracks 18,570 professional contacts across them, including 4,191 with verified work emails. New York is the largest hub.

This list covers multi-vendor platform developers 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

690Companies

18,570Contacts tracked

4,191Verified emails

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The 25 largest multi-vendor platform developers based in the United States

Ranked by team size

Top 25 of 690 multi-vendor platform developers 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 multi-vendor platform developers: 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	Walmart Marketplace	Indirect evidence	Bentonville, AR, United StatesHQ checked Sep 29, 2026	5,001-10,000	4,007 contacts →
	Indirect evidence “Walmart Marketplace connects you to millions of customers across categories, with the tools, insights, and support to grow with confidence.” Source: RevenueBase Database · checked Sep 29, 2026
2	Flywheel	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,706 contacts →
	Indirect evidence “Flywheel, the commerce arm of Omnicom Media, provides best-in-class service that combines tailored expertise with advanced software solutions to help clients drive incremental…” Source: RevenueBase Database · checked Sep 29, 2026
3	Iksula	Indirect evidence	Oakland, CA, United StatesHQ checked Sep 29, 2026	501-1,000	948 contacts →
	Indirect evidence “Iksula is a leading eCommerce solutions provider for brands and retailers globally.” Source: RevenueBase Database · checked Sep 29, 2026
4	Bigcommerce	Partial evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	746 contacts →
	Partial evidence “BigCommerce, powered by Commerce (Nasdaq: CMRC), is the flexible enterprise ecommerce platform built for growth without compromise.” Source: RevenueBase Database · checked Sep 29, 2026
5	Rithum	Indirect evidence	Plano, NC, United StatesHQ checked Sep 29, 2026	501-1,000	627 contacts →
	Indirect evidence “With 28 years of innovation behind us, Rithum was formed when two industry pioneers, CommerceHub and ChannelAdvisor, joined forces to redefine commerce operations.” Source: RevenueBase Database · checked Sep 29, 2026
6	Amla Commerce Creator Of Artifi And Znode	Partial evidence	Milwaukee, WI, United StatesHQ checked Sep 29, 2026	201-500	408 contacts →
	Partial evidence “Amla Commerce develops ecommerce software platforms.” Source: RevenueBase Database · checked Sep 29, 2026
7	WHOP	Indirect evidence	Brooklyn, NY, United StatesHQ checked Sep 29, 2026	51-200	309 contacts →
	Indirect evidence “Whop is a financial technology company on a mission to provide the world with sustainable income.” Source: RevenueBase Database · checked Sep 29, 2026
8	Channeladvisor	Partial evidence	Morrisville, NC, United StatesHQ checked Sep 29, 2026	501-1,000	225 contacts →
	Partial evidence “ChannelAdvisor (NYSE: ECOM) is a leading multichannel commerce platform whose mission is to connect and optimize the world’s commerce.” Source: RevenueBase Database · checked Sep 29, 2026
9	KIBO	Partial evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	201-500	211 contacts →
	Partial evidence “KIBO Commerce is a composable digital commerce platform for retailers, manufacturers, distributors, and wholesalers who want to simplify the complexity in their businesses and…” Source: RevenueBase Database · checked Sep 29, 2026
10	Easyecom	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 29, 2026	51-200	182 contacts →
	Indirect evidence “Enabling small scale merchants, manufacturers, retailers to sell their products online.” Source: RevenueBase Database · checked Sep 29, 2026
11	Helium 10	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	178 contacts →
	Partial evidence “Helium 10 is an all-in-one e-commerce platform that helps brands launch, grow, and scale across major marketplaces.” Source: RevenueBase Database · checked Sep 29, 2026
12	Revolutionparts	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 29, 2026	51-200	174 contacts →
	Indirect evidence “RevolutionParts, based in Phoenix, Arizona, accelerates parts and accessories sales across major automotive brands in North America.” Source: RevenueBase Database · checked Sep 29, 2026
13	Fastspring	Indirect evidence	Santa Barbara, CA, United StatesHQ checked Sep 29, 2026	51-200	159 contacts →
	Indirect evidence “FastSpring is how SaaS, software, and digital product companies sell online in more places around the world.” Source: RevenueBase Database · checked Sep 29, 2026
14	Gearlaunch	Partial evidence	Salt Lake City, UT, United StatesHQ checked Sep 29, 2026	51-200	156 contacts →
	Partial evidence “GearLaunch offers a sophisticated platform for E2E commerce, a rapidly emerging category that focuses on the full e-commerce value chain.” Source: RevenueBase Database · checked Sep 29, 2026
15	Ecwid By Lightspeed	Indirect evidence	Encinitas, CA, United StatesHQ checked Sep 29, 2026	51-200	143 contacts →
	Indirect evidence “Have you thought that selling online was a little out of your reach?” Source: RevenueBase Database · checked Sep 29, 2026
16	Miva, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 29, 2026	51-200	140 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
17	WEX Brasil Tech	Indirect evidence	Portland, ME, United StatesHQ checked Sep 29, 2026	5,001-10,000	137 contacts →
	Indirect evidence “WEX é a plataforma de comércio global que simplifica o negócio de administrar um negócio.” Source: RevenueBase Database · checked Sep 29, 2026
18	Commercehub	Indirect evidence	Latham, NY, United StatesHQ checked Sep 29, 2026	201-500	134 contacts →
	Indirect evidence “CommerceHub is one of the world’s largest, most trusted commerce networks, connecting over retailers and brands globally to transact more than $50 billion in gross merchandise…” Source: RevenueBase Database · checked Sep 29, 2026
19	Volusion	Indirect evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	51-200	115 contacts →
	Indirect evidence “Volusion is an all-in-one ecommerce solution that helps entrepreneurs build and manage successful online businesses.” Source: RevenueBase Database · checked Sep 29, 2026
20	NOGIN	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	110 contacts →
	Indirect evidence “Nogin is the leader in Commerce-as-a-Service, providing a complete, outsourced e-commerce solution that blends cutting-edge technology, specialized talent, and strategic tactics…” Source: RevenueBase Database · checked Sep 29, 2026
21	Seller Drive Global-Selling On Amazon, Tiktok Shop, Walmart, OR Shopify We VE GOT YOU Covered	Indirect evidence	Fletcher, NC, United StatesHQ checked Sep 29, 2026	51-200	107 contacts →
	Indirect evidence “WHY SELLER DRIVE Seller Drive’s definite aim covers enabling sellers to launch, manage and grow their business in this amazing world of eCommerce.” Source: RevenueBase Database · checked Sep 29, 2026
22	Shopkeep, A Lightspeed Company	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	201-500	91 contacts →
	Partial evidence “Powering the businesses that are the backbone of the global economy, Lightspeed’s one-stop commerce platform helps merchants innovate to simplify, scale and provide exceptional…” Source: RevenueBase Database · checked Sep 29, 2026
23	Scalefast	Indirect evidence	El Segundo, CA, United StatesHQ checked Sep 29, 2026	201-500	90 contacts →
	Indirect evidence “Scalefast is changing the way brands do direct-to-consumer eCommerce, by empowering them to regain the control and simplicity they need to create an exceptional shopping…” Source: RevenueBase Database · checked Sep 29, 2026
24	Ucraft	Indirect evidence	Glendale, CA, United StatesHQ checked Sep 29, 2026	51-200	87 contacts →
	Indirect evidence “Ucraft Next is officially LIVE!” Source: RevenueBase Database · checked Sep 29, 2026
25	Sellersfi	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	51-200	78 contacts →
	Indirect evidence “Financial solutions built for e-commerce.” 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: multi-vendor platform developers. 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 multi-vendor platform developers.
Partial evidence: Its own public description names part of multi-vendor platform developers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name multi-vendor platform developers. 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 690 multi-vendor platform developers based in the United States

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Multi-vendor platform developers based in the United States at a glance

As of Sep 29, 2026

22.6%Verified-email coverage

26.9Average contacts per company

11-50Median size (employees)

8.6%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

267

11-50

291

51-200

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 690 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 multi-vendor platform developers, 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 “multi-vendor platform developers”. 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 multi-vendor platform developers), 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 multi-vendor platform developers, 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, 4,191 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.

Multi-vendor platform developers by metro

Multi-vendor platform developers in New York59

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 multi-vendor platform developers, 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 multi-vendor platform developers are there based in the United States?

RevenueBase identified 690 multi-vendor platform developers 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?

Walmart Marketplace, headquartered in Bentonville, tops this list with the largest team on record.

Which city has the most multi-vendor platform developers?

New York leads with 59 headquartered companies, followed by Austin (19) and Los Angeles (16).

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 4,191 verified decision-maker contacts tracked across these 690 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.