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.
The 25 largest partnership development agencies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 219 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, 2026Thanks. The Data Team will review it. | |||||
| 2 | 93 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 83 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 52 contacts → | ||||
Indirect evidence “St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 48 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, 2026Thanks. The Data Team will review it. | |||||
| 7 | 41 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, 2026Thanks. The Data Team will review it. | |||||
| 8 | 33 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, 2026Thanks. The Data Team will review it. | |||||
| 9 | 32 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 29 contacts → | ||||
Indirect evidence “Search entrepreneurs bet on themselves.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 24 contacts → | ||||
Indirect evidence “Healthy, thriving nonprofits are needed to drive positive social change in our world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 20 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, 2026Thanks. The Data Team will review it. | |||||
| 13 | 19 contacts → | ||||
Indirect evidence “CCDC ignites diverse economic growth, builds attractive urban centers, and promotes healthy community design.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 18 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, 2026Thanks. The Data Team will review it. | |||||
| 15 | 18 contacts → | ||||
Indirect evidence “Vision, meet action.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 18 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, 2026Thanks. The Data Team will review it. | |||||
| 17 | 15 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, 2026Thanks. The Data Team will review it. | |||||
| 18 | 15 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, 2026Thanks. The Data Team will review it. | |||||
| 19 | 12 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, 2026Thanks. The Data Team will review it. | |||||
| 20 | 12 contacts → | ||||
Indirect evidence “St.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 11 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, 2026Thanks. The Data Team will review it. | |||||
| 22 | 11 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, 2026Thanks. The Data Team will review it. | |||||
| 23 | 9 contacts → | ||||
Partial evidence “We grow properties and brands through purposeful partnerships.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 9 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, 2026Thanks. The Data Team will review it. | |||||
| 25 | 9 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, 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: partnership development agencies. 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 partnership development agencies.
- Partial evidence
- Its own public description names part of partnership development agencies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name partnership development agencies. 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 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, 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 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.
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