Company lists · Data refreshed September 2026

Top 25 Industry associations based in the United States

RevenueBase identified 1,976 industry associations headquartered in the United States as of September 2026 and tracks 34,325 professional contacts across them, including 8,253 with verified work emails. Washington is the largest hub.

This list covers industry associations 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 20, 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 20, 2026 86% judged on-target in blind review
1,976Companies
34,325Contacts tracked
8,253Verified emails
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The 25 largest industry associations based in the United States

Ranked by team size
Top 25 of 1,976 industry associations based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to industry associations: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceChicago, IL, United StatesHQ checked Sep 20, 2026n/a3,166 contacts →

Partial evidence

“The National Association of REALTORS® (NAR) is America’s largest trade association, representing more than 1.5 million members involved in all aspects of the residential and…”

Source: RevenueBase Database · checked Sep 20, 2026
2Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 2026201-5001,215 contacts →

Partial evidence

“At the National Restaurant Association, we strive to help every one of our members build customer loyalty, find financial success and provide rewarding careers in foodservice.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 2026201-5001,010 contacts →

Partial evidence

“The National Association of Home Builders (NAHB) strives to protect the American Dream of housing opportunities for all, while working to achieve professional success for its…”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 2026n/a960 contacts →

Indirect evidence

“Founded on the merit shop philosophy, ABC and its 67 chapters nationwide help our members develop people, win work and deliver that work safely, ethically and profitably for the…”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 2026501-1,000693 contacts →

Indirect evidence

“The Chamber of Commerce of the United States is the world’s largest business organization.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 2026201-500569 contacts →

Partial evidence

“American Bankers Association is a banking trade association of community, regional, and money center banks, holding companies, savings associations, trust companies, and savings…”

Source: RevenueBase Database · checked Sep 20, 2026
7Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-200469 contacts →

Partial evidence

“The Interactive Advertising Bureau (IAB) empowers the media and marketing industries to thrive in the digital economy.”

Source: RevenueBase Database · checked Sep 20, 2026
8Strong evidenceArlington, VA, United StatesHQ checked Sep 20, 202651-200458 contacts →

Strong evidence

“For more than 100 years the Associated General Contractors of America (AGC) has been and still is the leading association for the construction industry.”

Source: RevenueBase Database · checked Sep 20, 2026
9Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 202651-200444 contacts →

Partial evidence

“The National Retail Federation, the world’s largest retail trade association, passionately advocates for the people, policies and ideas that help retail thrive.”

Source: RevenueBase Database · checked Sep 20, 2026
10Partial evidenceFairfax, VA, United StatesHQ checked Sep 20, 2026n/a413 contacts →

Partial evidence

“The Irrigation Association is the leading membership organization for irrigation equipment and system manufacturers, dealers, distributors, designers, consultants, contractors and…”

Source: RevenueBase Database · checked Sep 20, 2026
11Partial evidenceArlington, VA, United StatesHQ checked Sep 20, 2026n/a403 contacts →

Partial evidence

“The Agricultural Retailers Association (ARA) advocates, influences, educates and provides services to support sellers of seeds, nutrients, crop protection products, farm…”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 2026n/a402 contacts →

Partial evidence

“RILA is the US trade association for leading retailers.”

Source: RevenueBase Database · checked Sep 20, 2026
13Partial evidenceSacramento, CA, United StatesHQ checked Sep 20, 202651-200380 contacts →

Partial evidence

“The CALIFORNIA ASSOCIATION OF REALTORS® is one of the largest state trade organizations in the United States, with members dedicated to the advancement of professionalism in real…”

Source: RevenueBase Database · checked Sep 20, 2026
14Strong evidenceNorth Hollywood, CA, United StatesHQ checked Sep 20, 202610001+351 contacts →

Strong evidence

“Affiliated Property Craftspersons Local 44 is a professional association of craft persons having specialized skills and talents within the entertainment industry.”

Source: RevenueBase Database · checked Sep 20, 2026
15Strong evidenceMaryland Heights, MO, United StatesHQ checked Sep 20, 2026n/a344 contacts →

Strong evidence

“PCA Mission: The Painting Contractors Association serves the coating and wall covering industry with standards, education, training, advocacy, and best practices essential to…”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceIrvine, CA, United StatesHQ checked Sep 20, 202651-200313 contacts →

Indirect evidence

“SCA is the global stage for specialty coee, where culture, commerce and community collide.”

Source: RevenueBase Database · checked Sep 20, 2026
17Indirect evidenceWinston-salem, NC, United StatesHQ checked Sep 20, 2026201-500278 contacts →

Indirect evidence

“For more than 50 years, we've partnered with entrepreneurs across North America to provide the buying power, business intelligence, marketing expertise, operational support, and…”

Source: RevenueBase Database · checked Sep 20, 2026
18Indirect evidenceWayne, PA, United StatesHQ checked Sep 20, 2026201-500272 contacts →

Indirect evidence

“AD is a member-owned organization, passionate about bringing growth-oriented independent distributors and best-in-class supplier partners together with the purpose to outperform…”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceFairfax, VA, United StatesHQ checked Sep 20, 202651-200268 contacts →

Partial evidence

“AVIXA™ is the Audiovisual and Integrated Experience Association, producer of InfoComm trade shows around the world, co-owner of Integrated Systems Europe, and the international…”

Source: RevenueBase Database · checked Sep 20, 2026
20Strong evidenceArlington, VA, United StatesHQ checked Sep 20, 202651-200250 contacts →

Strong evidence

“As the food industry association, FMI works with and on behalf of the entire industry to advance a safer, healthier and more efficient consumer food supply.FMI is a champion for…”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 202610001+249 contacts →

Partial evidence

“The Events Industry Council (EIC)’s more than 30 member organizations represent more than 103,500 individuals and 19,500 firms and properties involved in the meetings, conventions…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceArlington, VA, United StatesHQ checked Sep 20, 202651-200245 contacts →

Partial evidence

“The National Apartment Association envisions a world where rental housing is a valued partner in every community.”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceWashington, DC, United StatesHQ checked Sep 20, 2026n/a231 contacts →

Partial evidence

“The Direct Selling Association (DSA) is the U.S.”

Source: RevenueBase Database · checked Sep 20, 2026
24Partial evidenceNew York, NY, United StatesHQ checked Sep 20, 202651-200214 contacts →

Partial evidence

“SIFMA is the voice of the nation’s securities industry, bringing together the shared interests of hundreds of broker-dealers, investment banks and asset managers.”

Source: RevenueBase Database · checked Sep 20, 2026
25Indirect evidenceWashington, DC, United StatesHQ checked Sep 20, 202651-200214 contacts →

Indirect evidence

“AHLA is the only national organization dedicated to serving the interests of hoteliers on the front line, behind the scenes, and on Capitol Hill.”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 1,976 industry associations based in the United States

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Industry associations based in the United States at a glance

As of Sep 20, 2026
24.0%Verified-email coverage
17.4Average contacts per company
1-10Median size (employees)
6.0%Largest-city concentration · Washington
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
1,212
11-50
442
51-200
162
201-500
89
501-1,000
32
1,001-5,000
21
5,001-10,000
5
10001+
10

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 1,976 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 industry associations, 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 “industry associations”. 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 industry associations), 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 industry associations, 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, 8,253 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 20, 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 industry associations, 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 industry associations are there based in the United States?

RevenueBase identified 1,976 industry associations 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?

National Association Of Realtors, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most industry associations?

Washington leads with 119 headquartered companies, followed by New York (46) and Chicago (38).

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 8,253 verified decision-maker contacts tracked across these 1,976 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 20, 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.