Company lists · Data refreshed September 2026

Top 25 Business and industry associations based in the United States

RevenueBase identified 201 business and industry associations headquartered in the United States as of September 2026 and tracks 2,724 professional contacts across them, including 948 with verified work emails. Washington is the largest hub.

This list covers business and 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 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
201Companies
2,724Contacts tracked
948Verified emails
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The 25 largest business and industry associations based in the United States

Ranked by team size
Top 25 of 201 business and industry associations 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 business and 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
1Indirect evidenceWashington, DC, United StatesHQ checked Sep 19, 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 19, 2026
2Partial evidenceHartford, CT, United StatesHQ checked Sep 19, 202651-200124 contacts →

Partial evidence

“CBIA is the leading voice for business in the state, representing thousands of member companies, small and large, across a diverse range of industries.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 19, 202611-5065 contacts →

Indirect evidence

“The United States Council for International Business (USCIB) advances the global interests of American business.”

Source: RevenueBase Database · checked Sep 19, 2026
4Strong evidenceBoston, MA, United StatesHQ checked Sep 19, 202651-20064 contacts →

Strong evidence

“AIM is the state’s largest business association serving the needs of more than 3,500 businesses across 150 different industries, representing more than employees.”

Source: RevenueBase Database · checked Sep 19, 2026
5Strong evidenceSacramento, CA, United StatesHQ checked Sep 19, 202611-5062 contacts →

Strong evidence

“Founded in 1906, the California Restaurants Association has become one of the strongest advocates for the restaurant industry in the country.”

Source: RevenueBase Database · checked Sep 19, 2026
6Partial evidenceLansing, MI, United StatesHQ checked Sep 19, 202611-5061 contacts →

Partial evidence

“The Michigan Chamber of Commerce is a statewide business organization representing over employers, trade associations and local chambers of commerce.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceOlympia, WA, United StatesHQ checked Sep 19, 202611-5059 contacts →

Partial evidence

“Formed in 1904, the Association of Washington Business is Washington’s oldest and largest statewide business association, and includes more than members representing employees.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceColumbus, OH, United StatesHQ checked Sep 19, 202611-5050 contacts →

Indirect evidence

“As the state’s leading business advocate and resource, the Ohio Chamber of Commerce aggressively champions free enterprise, economic competitiveness and growth for the benefit of…”

Source: RevenueBase Database · checked Sep 19, 2026
9Indirect evidenceFrankfort, KY, United StatesHQ checked Sep 19, 202651-20050 contacts →

Indirect evidence

“Uniting Business.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceMadison, WI, United StatesHQ checked Sep 19, 202611-5045 contacts →

Indirect evidence

“WMC - Wisconsin's Chamber.”

Source: RevenueBase Database · checked Sep 19, 2026
11Partial evidenceSeattle, WA, United StatesHQ checked Sep 19, 202651-20042 contacts →

Partial evidence

“WHO WE ARE The Seattle Metro Chamber is the largest and most diverse business association in the region representing 2,500 member companies and a workforce of about OUR VISION We…”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceSt. Augustine, FL, United StatesHQ checked Sep 19, 202611-5032 contacts →

Indirect evidence

“The St.”

Source: RevenueBase Database · checked Sep 19, 2026
13Strong evidenceColorado Springs, CO, United StatesHQ checked Sep 19, 202611-5032 contacts →

Strong evidence

“The Housing & Building Association of Colorado Springs (CSHBA) is a dynamic trade association representing a diverse range of companies in the housing and construction industries.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceWashington, DC, United StatesHQ checked Sep 19, 202611-5031 contacts →

Partial evidence

“The Greater Washington Board of Trade has represented all industry sectors in the District of Columbia, suburban Maryland, and Northern Virginia for over 135 years.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceScottsdale, AZ, United StatesHQ checked Sep 19, 20261-1025 contacts →

Indirect evidence

“The Arizona Builders Alliance represents more than 300 companies and their employees from general contractors, subcontractors, professional service firms and suppliers to merit…”

Source: RevenueBase Database · checked Sep 19, 2026
16Indirect evidenceRockville, MD, United StatesHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“Welcome to the Maryland Tech Council.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceNew York, United StatesHQ checked Sep 19, 20261-1023 contacts →

Indirect evidence

“The Staten Island Chamber of Commerce is the largest and most respected business organization on Staten Island that promotes and protects the interests of its members since 1895.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceMidland, MI, United StatesHQ checked Sep 19, 202611-5021 contacts →

Indirect evidence

“The Midland Business Alliance is Midland’s fully integrated business hub and voice for more than businesses, from start-ups to Fortune 500 companies.”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceOverland Park, KS, United StatesHQ checked Sep 19, 202611-5020 contacts →

Indirect evidence

“The Overland Park Chamber of Commerce is the advocate and resource for Overland Park businesses.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceNashville, TN, United StatesHQ checked Sep 19, 202611-5018 contacts →

Indirect evidence

“The Tennessee Chamber’s role remains a simple, but critical, one – to represent the interests of our state’s job creators in matters of public policy and to build a statewide…”

Source: RevenueBase Database · checked Sep 19, 2026
21Partial evidenceGreenwood Village, CO, United StatesHQ checked Sep 19, 202611-5017 contacts →

Partial evidence

“Our purpose is to enhance member and association profitability, prosperity and professional growth through legislative representation, educational advancement, and networking…”

Source: RevenueBase Database · checked Sep 19, 2026
22Strong evidenceCheektowaga, NY, United StatesHQ checked Sep 19, 20261-1016 contacts →

Strong evidence

“A trade association serving the construction industry since 1981.”

Source: RevenueBase Database · checked Sep 19, 2026
23Strong evidenceRochelle Park, NJ, United StatesHQ checked Sep 19, 20261-1015 contacts →

Strong evidence

“The Commerce and Industry Association of New Jersey is a premier general business advocacy group in the Garden State and has approximately 950 members.”

Source: RevenueBase Database · checked Sep 19, 2026
24Strong evidenceConcord, NH, United StatesHQ checked Sep 19, 20261-1015 contacts →

Strong evidence

“The Business and Industry Association is New Hampshire’s statewide chamber of commerce and leading business advocate.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceApalachin, NY, United StatesHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“Your Success is Our Success Put Our 25 Yrs.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 201 business and industry associations based in the United States

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Business and industry associations based in the United States at a glance

As of Sep 19, 2026
34.8%Verified-email coverage
13.6Average contacts per company
1-10Median size (employees)
4.5%Largest-city concentration · Washington
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
141
11-50
39
51-200
14
201-500
2
501-1,000
4
1,001-5,000
1

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 201 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 business and 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 “business and 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 business and 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 business and 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, 948 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 business and 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 business and industry associations are there based in the United States?

RevenueBase identified 201 business and 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?

U.S. Chamber Of Commerce, headquartered in Washington, tops this list with the largest team on record.

Which city has the most business and industry associations?

Washington leads with 9 headquartered companies, followed by Chicago (4) and Houston (4).

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 948 verified decision-maker contacts tracked across these 201 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.