Company lists · Data refreshed September 2026
Top 25 B2B directory companies based in the United States
RevenueBase identified 269 B2B directory companies headquartered in the United States as of September 2026 and tracks 1,744 professional contacts across them, including 355 with verified work emails. New York is the largest hub.
This list covers B2B directory companies 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.
The 25 largest B2B directory companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 182 contacts → | ||||
Partial evidence “Clutch powers how businesses discover, evaluate, and hire the right B2B service partners.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 64 contacts → | ||||
Indirect evidence “As a leader in revenue generation for small businesses for over 13 years, our goal is to connect companies across various industries with high quality, true-intent prospects.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 62 contacts → | ||||
Indirect evidence “At MNI, our mission is to help your businesses thrive, providing tried-and-true industrial prospecting and procurement solutions since 1912.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 50 contacts → | ||||
Indirect evidence “Data Driven.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 44 contacts → | ||||
Partial evidence “KYKLO is a fast-growing technology company that provides B2B e-commerce and product content solutions to manufacturers and distributors of technical products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 34 contacts → | ||||
Indirect evidence “WBM International Online is known worldwide for its business operations and high standard quality products.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 30 contacts → | ||||
Partial evidence “SeeBiz is a modern B2B Marketplace designed to transform how wholesale businesses operate, connect, and scale globally.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 28 contacts → | ||||
Indirect evidence “Sambuq is an online guide that helps businesses find solutions to fit their needs, based on information supplied by vendors and the experiences of previous explorers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 27 contacts → | ||||
Partial evidence “Envoy is a wholesale B2B platform for your entire team.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 24 contacts → | ||||
Partial evidence “MyAtOnce is the next generation of B2B e-commerce.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 21 contacts → | ||||
Partial evidence “FierceMarkets, a leader in B2B e-media, helps business marketers reach targeted decision-makers through our portfolio of email newsletters, websites, webinars, and live events…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 18 contacts → | ||||
Partial evidence “SUMNER COMMUNICATIONS has been providing B2B solutions to the wholesale trade for over 33 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 16 contacts → | ||||
Indirect evidence “Procurement League is an online content and connections hub for buyers and sellers to help you move higher in your business whether you want to learn, train or build valuable…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 16 contacts → | ||||
Indirect evidence “Millions of professionals trust the MediaBrains business-to-business marketplace platform to simplify complex purchase decisions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Partial evidence “Lead Gear is a results-driven B2B digital marketing and web design company in Dallas, Texas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “BizBen is the premier platform for navigating the complexities of small to mid-sized business transactions across the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 12 contacts → | ||||
Indirect evidence “We know time is tight, trusted connections matter, and the right partners make all the difference.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 12 contacts → | ||||
Partial evidence “For 20 years, Corexpand has been the leader in powerful, client-specific B2B marketplace solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 contacts → | ||||
Partial evidence “SelectedFirms is a global B2B platform helping businesses discover, compare, and connect with trusted technology, AI, software development, IT services, and digital marketing…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 10 contacts → | ||||
Indirect evidence “Direct Communications, Inc.(DCi), an ARI Company, Helping Businesses in the Automotive Aftermarket Sell More Stuff for More Than 30 Years From our start in 1981 with printing and…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Partial evidence “Finding MFG is a B2B informative platform that was developed in 2020 to connect customers to manufacturers that deliver superior products and services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Partial evidence “Find your perfect audience with B2B email list across the globe.* We are niche pioneers of business accelerating data intelligence, data consultancy and data-driven services, for…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Partial evidence “VICI Brands is the B2B distribution arm of BrandMX in the Americas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 8 contacts → | ||||
Partial evidence “We help B2B companies grow.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 7 contacts → | ||||
Indirect evidence “Buy a business online with the support of advanced analytics.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
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: B2B directory companies. 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 B2B directory companies.
- Partial evidence
- Its own public description names part of B2B directory companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name B2B directory companies. 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 269 B2B directory companies based in the United States
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B2B directory companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
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 269 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 B2B directory companies, 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 “B2B directory companies”. 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 B2B directory companies), 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 B2B directory companies, 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, 355 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.
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 B2B directory companies, 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 B2B directory companies are there based in the United States?
RevenueBase identified 269 B2B directory companies 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?
Clutch, headquartered in Washington, tops this list with the largest team on record.
Which city has the most B2B directory companies?
New York leads with 14 headquartered companies, followed by Miami (12) and Chicago (6).
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 355 verified decision-maker contacts tracked across these 269 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.