Company lists · Data refreshed September 2026

Top 25 Partnership development agencies based in the United States

RevenueBase identified 254 partnership development agencies headquartered in the United States as of September 2026 and tracks 2,176 professional contacts across them, including 542 with verified work emails. Washington is the largest hub.

This list covers partnership development agencies 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
254Companies
2,176Contacts tracked
542Verified emails
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The 25 largest partnership development agencies based in the United States

Ranked by team size
Top 25 of 254 partnership development agencies 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 partnership development agencies: 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 evidenceSheridan, WY, United StatesHQ checked Sep 20, 2026n/a219 contacts →

Partial evidence

“Helping partnership leaders make better decisions and unlock more capacity through consulting (research, advisory, training), curated events, and community experiences.”

Source: RevenueBase Database · checked Sep 20, 2026
2Indirect evidenceBangor, ME, United StatesHQ checked Sep 20, 202611-5093 contacts →

Indirect evidence

“We foster public-private relationships and leverage resources that help businesses, communities and individuals reach long-term goals and prosperity.”

Source: RevenueBase Database · checked Sep 20, 2026
3Partial evidenceBoston, MA, United StatesHQ checked Sep 20, 2026n/a83 contacts →

Partial evidence

“We are a not-for-profit organization that specializes in developing collaborative responses to issues in education, workforce, youth and community development.”

Source: RevenueBase Database · checked Sep 20, 2026
4Indirect evidenceSt. Louis, MO, United StatesHQ checked Sep 20, 202651-20052 contacts →

Indirect evidence

“St.”

Source: RevenueBase Database · checked Sep 20, 2026
5Indirect evidenceSeattle, WA, United StatesHQ checked Sep 20, 202611-5049 contacts →

Indirect evidence

“Camber Collective is a strategic partner to the organizations and fields addressing the world’s most urgent challenges.”

Source: RevenueBase Database · checked Sep 20, 2026
6Partial evidenceBowling Green, KY, United StatesHQ checked Sep 20, 202611-5048 contacts →

Partial evidence

“Kentucky's counties are grouped into 15 regions known as Area Development Districts, or ADD's.”

Source: RevenueBase Database · checked Sep 20, 2026
7Indirect evidenceCambridge, MA, United StatesHQ checked Sep 20, 202611-5041 contacts →

Indirect evidence

“CBI is a nonprofit organization that has worked at the forefront of collaboration and conflict resolution for more than 20 years, helping leaders generate breakthrough results on…”

Source: RevenueBase Database · checked Sep 20, 2026
8Indirect evidenceNewtown, PA, United StatesHQ checked Sep 20, 202611-5033 contacts →

Indirect evidence

“Clear Employer Services is a leading Professional Employer Organization (PEO), payroll, HR, and employee benefits provider helping small and mid-sized businesses attract, retain…”

Source: RevenueBase Database · checked Sep 20, 2026
9Indirect evidenceNew York, United StatesHQ checked Sep 20, 2026n/a32 contacts →

Indirect evidence

“We seek to partner with leading edge entrepreneurs that will benefit from the strategic, financial operational and managerial expertise our team can bring to their growing…”

Source: RevenueBase Database · checked Sep 20, 2026
10Indirect evidenceBoston, MA, United StatesHQ checked Sep 20, 202611-5029 contacts →

Indirect evidence

“Search entrepreneurs bet on themselves.”

Source: RevenueBase Database · checked Sep 20, 2026
11Indirect evidenceNew York, NY, United StatesHQ checked Sep 20, 202611-5024 contacts →

Indirect evidence

“Healthy, thriving nonprofits are needed to drive positive social change in our world.”

Source: RevenueBase Database · checked Sep 20, 2026
12Partial evidenceMerced, CA, United StatesHQ checked Sep 20, 202611-5020 contacts →

Partial evidence

“Striving to work at the speed of business, the Community & Economic Development Department team will build our community by delivering superior customer service through proactive…”

Source: RevenueBase Database · checked Sep 20, 2026
13Indirect evidenceBoise, ID, United StatesHQ checked Sep 20, 202611-5019 contacts →

Indirect evidence

“CCDC ignites diverse economic growth, builds attractive urban centers, and promotes healthy community design.”

Source: RevenueBase Database · checked Sep 20, 2026
14Indirect evidenceBuffalo, NY, United StatesHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“The mission of the Erie County IDA is to encourage investment, innovation, growth and global competitiveness - creating a successful business climate that improves the quality of…”

Source: RevenueBase Database · checked Sep 20, 2026
15Indirect evidenceSanta Clara, United StatesHQ checked Sep 20, 202611-5018 contacts →

Indirect evidence

“Vision, meet action.”

Source: RevenueBase Database · checked Sep 20, 2026
16Indirect evidenceFort Lauderdale, FL, United StatesHQ checked Sep 20, 20261-1018 contacts →

Indirect evidence

“We enable nonprofit organizations & corporations to increase reach & revenue by working together to inspire consumers and impact our society.”

Source: RevenueBase Database · checked Sep 20, 2026
17Partial evidenceWhite Plains, MD, United StatesHQ checked Sep 20, 20261-1015 contacts →

Partial evidence

“The Charles County, Maryland Department of Economic Development supports and promotes the county’s economic vitality by promoting wealth creation and economic growth; increasing…”

Source: RevenueBase Database · checked Sep 20, 2026
18Partial evidenceLeland, NC, United StatesHQ checked Sep 20, 202651-20015 contacts →

Partial evidence

“Since 1986, LDI has been singularly focused on creating a legacy through development, community, and relationship.”

Source: RevenueBase Database · checked Sep 20, 2026
19Partial evidenceSaratoga Springs, NY, United StatesHQ checked Sep 20, 202611-5012 contacts →

Partial evidence

“SM2 Dev is a Saratoga Springs, NY based digital development agency specializing in scalable web platforms, custom business systems, mobile applications, AI integrations, and…”

Source: RevenueBase Database · checked Sep 20, 2026
20Indirect evidenceSt Cloud, MN, United StatesHQ checked Sep 20, 2026201-50012 contacts →

Indirect evidence

“St.”

Source: RevenueBase Database · checked Sep 20, 2026
21Partial evidenceVancouver, WA, United StatesHQ checked Sep 20, 20261-1011 contacts →

Partial evidence

“As Washington State’s recognized Associate Development Organization for Clark County, CREDC unites 150 private and public sector partners dedicated to advancing regional economic…”

Source: RevenueBase Database · checked Sep 20, 2026
22Partial evidenceWorcester, MA, United StatesHQ checked Sep 20, 202611-5011 contacts →

Partial evidence

“Grounded in a tradition of economic development accomplishment, the WBDC has played a key role in strengthening the Worcester region’s position as an economic leader in…”

Source: RevenueBase Database · checked Sep 20, 2026
23Partial evidenceAtlanta, GA, United StatesHQ checked Sep 20, 20261-109 contacts →

Partial evidence

“We grow properties and brands through purposeful partnerships.”

Source: RevenueBase Database · checked Sep 20, 2026
24Strong evidenceMartinsville, VA, United StatesHQ checked Sep 20, 20261-109 contacts →

Strong evidence

“The Martinsville-Henry County Economic Development Corporation is a public-private partnership between the City of Martinsville, Henry County, and the Harvest Foundation of the…”

Source: RevenueBase Database · checked Sep 20, 2026
25Partial evidenceMemphis, TN, United StatesHQ checked Sep 20, 20261-109 contacts →

Partial evidence

“The MidSouth Development District works closely with member governments and organizations to identify, craft, and advocate for resources to improve the overall quality of life for…”

Source: RevenueBase Database · checked Sep 20, 2026

Showing 25 of 254 partnership development agencies based in the United States

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Partnership development agencies based in the United States at a glance

As of Sep 20, 2026
24.9%Verified-email coverage
8.6Average contacts per company
1-10Median size (employees)
3.9%Largest-city concentration · Washington
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
194
11-50
37
51-200
10
201-500
7
1,001-5,000
5

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 254 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 partnership development agencies, 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 “partnership development agencies”. 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 partnership development agencies), 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 partnership development agencies, 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, 542 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 partnership development agencies, 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 partnership development agencies are there based in the United States?

RevenueBase identified 254 partnership development agencies 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?

Partnership Leaders, headquartered in Sheridan, tops this list with the largest team on record.

Which city has the most partnership development agencies?

Washington leads with 10 headquartered companies, followed by Los Angeles (6) and Atlanta (5).

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 542 verified decision-maker contacts tracked across these 254 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.