Company lists · Data refreshed September 2026

Top 25 Ecommerce api providers based in the United States

Name: Ecommerce api providers based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 696 companies tracked

RevenueBase identified 696 ecommerce api providers headquartered in the United States as of September 2026 and tracks 25,417 professional contacts across them, including 8,930 with verified work emails. New York is the largest hub.

This list covers ecommerce api providers 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 19, 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 19, 2026 86% judged on-target in blind review

696Companies

25,417Contacts tracked

8,930Verified emails

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The 25 largest ecommerce api providers based in the United States

Ranked by team size

Top 25 of 696 ecommerce api providers based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to ecommerce api providers: 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	WEX	Indirect evidence	Portland, ME, United StatesHQ checked Sep 19, 2026	5,001-10,000	4,753 contacts →
	Indirect evidence “WEX (NYSE: WEX) is the global commerce platform that simplifies the business of running a business.” Source: RevenueBase Database · checked Sep 19, 2026
2	Iksula	Partial evidence	Oakland, CA, United StatesHQ checked Sep 19, 2026	501-1,000	948 contacts →
	Partial evidence “Iksula is a leading eCommerce solutions provider for brands and retailers globally.” Source: RevenueBase Database · checked Sep 19, 2026
3	Aurus INC	Indirect evidence	Norwood, MA, United StatesHQ checked Sep 19, 2026	501-1,000	931 contacts →
	Indirect evidence “Aurus is a certified payment gateway enabling seamless, secure transactions across in-store, online, and mobile channels.” Source: RevenueBase Database · checked Sep 19, 2026
4	Spreetail	Partial evidence	Lincoln, NE, United StatesHQ checked Sep 19, 2026	1,001-5,000	836 contacts →
	Partial evidence “Our mission is to propel brands to increase their ecommerce market share across the globe while improving their operational costs.” Source: RevenueBase Database · checked Sep 19, 2026
5	ROKT	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	501-1,000	762 contacts →
	Partial evidence “Rokt is the global leader in ecommerce, unlocking real-time relevance in the moment that matters most - The Transaction Moment.” Source: RevenueBase Database · checked Sep 19, 2026
6	Bigcommerce	Partial evidence	Austin, TX, United StatesHQ checked Sep 19, 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 19, 2026
7	Rithum	Indirect evidence	Plano, NC, United StatesHQ checked Sep 19, 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 19, 2026
8	STORD	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	615 contacts →
	Indirect evidence “Stord is the physical intelligence layer for independent commerce, giving brands the fulfillment network, software, AI, and robotics they need to own the entire relationship with…” Source: RevenueBase Database · checked Sep 19, 2026
9	Digital River	Strong evidence	Minnetonka, MN, United StatesHQ checked Sep 19, 2026	1,001-5,000	495 contacts →
	Strong evidence “We're proactive partners, providing API-based Cross-Border, Order Management and Ecommerce services to leading enterprise brands.” Source: RevenueBase Database · checked Sep 19, 2026
10	Vserve Ebusiness Solutions	Partial evidence	New York, United StatesHQ checked Sep 19, 2026	501-1,000	481 contacts →
	Partial evidence “Vserve Ebusiness Solutions is a Trusted Global Provider of AI-powered Supply Chain and Ecommerce Solutions.” Source: RevenueBase Database · checked Sep 19, 2026
11	Easypost	Strong evidence	Lehi, UT, United StatesHQ checked Sep 19, 2026	201-500	383 contacts →
	Strong evidence “EasyPost is a Shipping API that solves complex logistics problems for eCommerce businesses, enabling them to deliver an online shopping experience that delights customers.” Source: RevenueBase Database · checked Sep 19, 2026
12	Kensium	Partial evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	201-500	343 contacts →
	Partial evidence “At Kensium, we lead the way in B2B and B2C eCommerce innovation, delivering scalable solutions that drive business growth and competitiveness.” Source: RevenueBase Database · checked Sep 19, 2026
13	WHOP	Indirect evidence	Brooklyn, NY, United StatesHQ checked Sep 19, 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 19, 2026
14	Ccbill	Partial evidence	Tempe, AZ, United StatesHQ checked Sep 19, 2026	201-500	293 contacts →
	Partial evidence “CCBill is a leading global payment processor and ecommerce provider.” Source: RevenueBase Database · checked Sep 19, 2026
15	LOOP	Indirect evidence	Columbus, OH, United StatesHQ checked Sep 19, 2026	201-500	258 contacts →
	Indirect evidence “Commerce should feel effortless.” Source: RevenueBase Database · checked Sep 19, 2026
16	KIBO	Indirect evidence	Austin, TX, United StatesHQ checked Sep 19, 2026	201-500	211 contacts →
	Indirect 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 19, 2026
17	Easyecom	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 19, 2026	51-200	182 contacts →
	Indirect evidence “Enabling small scale merchants, manufacturers, retailers to sell their products online.” Source: RevenueBase Database · checked Sep 19, 2026
18	Revolutionparts	Indirect evidence	Tempe, AZ, United StatesHQ checked Sep 19, 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 19, 2026
19	Payjunction	Indirect evidence	Santa Barbara, CA, United StatesHQ checked Sep 19, 2026	51-200	172 contacts →
	Indirect evidence “PayJunction helps businesses and software companies accept payments with ease in-store, online, and on-the-go.” Source: RevenueBase Database · checked Sep 19, 2026
20	FINIX	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	51-200	169 contacts →
	Indirect evidence “Finix is a payment processor that makes it easy for software platforms, marketplaces, and individual businesses of all sizes to accept payments and send money while maximizing…” Source: RevenueBase Database · checked Sep 19, 2026
21	Momentum	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	164 contacts →
	Indirect evidence “Momentum is a collection of companies built to power digital commerce.” Source: RevenueBase Database · checked Sep 19, 2026
22	Fastspring	Indirect evidence	Santa Barbara, CA, United StatesHQ checked Sep 19, 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 19, 2026
23	Gearlaunch	Indirect evidence	Salt Lake City, UT, United StatesHQ checked Sep 19, 2026	51-200	156 contacts →
	Indirect 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 19, 2026
24	Jane Technologies, INC	Indirect evidence	Santa Cruz, CA, United StatesHQ checked Sep 19, 2026	51-200	153 contacts →
	Indirect evidence “Jane provides commerce infrastructure for local retail.” Source: RevenueBase Database · checked Sep 19, 2026
25	Branding Brand	Indirect evidence	Pittsburgh, PA, United StatesHQ checked Sep 19, 2026	51-200	144 contacts →
	Indirect evidence “Branding Brand's mission is to create digital experiences shoppers love.” Source: RevenueBase Database · checked Sep 19, 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: ecommerce api providers. 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 ecommerce api providers.
Partial evidence: Its own public description names part of ecommerce api providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name ecommerce api providers. 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 696 ecommerce api providers based in the United States

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Ecommerce api providers based in the United States at a glance

As of Sep 19, 2026

35.1%Verified-email coverage

36.5Average contacts per company

11-50Median size (employees)

8.2%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

235

11-50

284

51-200

114

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 696 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 ecommerce api providers, 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 “ecommerce api providers”. 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 ecommerce api providers), 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 ecommerce api providers, 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, 8,930 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 19, 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.

Ecommerce api providers by metro

Ecommerce api providers in New York57

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 ecommerce api providers, 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 ecommerce api providers are there based in the United States?

RevenueBase identified 696 ecommerce api providers 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?

WEX, headquartered in Portland, tops this list with the largest team on record.

Which city has the most ecommerce api providers?

New York leads with 57 headquartered companies, followed by Miami (18) and San Francisco (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 8,930 verified decision-maker contacts tracked across these 696 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 19, 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.