Company lists · Data refreshed September 2026

Top 25 Grantwriting services based in the United States

RevenueBase identified 1,109 company matches for grantwriting services associated with the United States as of September 2026 and tracks 4,148 professional contacts across them, including 1,603 with verified work emails. Atlanta is the largest hub.

This list covers company matches for grantwriting services associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 20, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 20, 2026 How this list was built
1,109Companies
4,148Contacts tracked
1,603Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest grantwriting services based in the United States

Ranked by team size
Top 25 of 1,109 company matches for grantwriting services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 20, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchAustin, TX, United StatesHQ recorded Sep 20, 2026201-500265 contacts →

Exact match

“GrantWorks has secured and managed more than $14 billion in grant funding for 725+ local government clients.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-200170 contacts →

Exact match

“McAllister & Quinn is a Washington, DC consulting firm that provides a comprehensive range of services to a diverse group of clients with issues before the federal government.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
3Exact matchChicago, IL, United StatesHQ recorded Sep 20, 2026201-500102 contacts →

Exact match

“Founded in 1943, Hektoen Institute offers a full-service, turn-key grant management solution for nonprofit organizations and municipalities.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
4Exact matchRaleigh, CA, United StatesHQ recorded Sep 20, 202651-20075 contacts →

Exact match

“Eva Garland Consulting (EGC) is a global leader in securing non-dilutive funding and providing comprehensive accounting and compliance services.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 20, 202651-20055 contacts →

Exact match

“Elevate is a woman-owned and woman-led business established to help nonprofit organizations of all sizes build, sustain, and grow effective grant programs.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
6Exact matchMorristown, NJ, United StatesHQ recorded Sep 20, 202611-5053 contacts →

Exact match

“Millennium Strategies is the largest full-service grants consulting firm in the region.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
7Exact matchEl Segundo, CA, United StatesHQ recorded Sep 20, 202611-5047 contacts →

Exact match

“Since 2004, California Consulting, Inc.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
8Exact matchAlpharetta, GA, United StatesHQ recorded Sep 20, 202611-5045 contacts →

Exact match

“Vendorship provides what every business needs: solid leads.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
9Exact matchDurham, NC, United StatesHQ recorded Sep 20, 202651-20042 contacts →

Exact match

“Grant Engine has a win rate of 2x to 4x higher than the national average, the highest win rate in the space, and as a result is widely recognized as the leading platform for…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
10Exact matchRochester, NY, United StatesHQ recorded Sep 20, 202611-5042 contacts →

Exact match

“We are experts in grants intelligence.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
11Exact matchMiddletown, DE, United StatesHQ recorded Sep 20, 202611-5040 contacts →

Exact match

“Government Contract Inc.(GCI), a subsidiary of Miits Inc, delivers end-to-end federal proposal development and recruitment solutions for government contractors across the U.S.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
12Exact matchCleveland, OH, United StatesHQ recorded Sep 20, 202611-5038 contacts →

Exact match

“Founded in 2007, Grants Plus is the most trusted and experienced professional grant seeking firm in the country.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
13Exact matchDenver, CO, United StatesHQ recorded Sep 20, 202611-5037 contacts →

Exact match

“ZIM Consulting (ZIM) is a woman-owned, Denver-based, full-service consulting firm that specializes in grant management, strategic planning, and fundraising implementation services…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
14Exact matchBrockport, NY, United StatesHQ recorded Sep 20, 202611-5036 contacts →

Exact match

“We provide external evaluation services, grant research, proposal writing, professional learning and grant management services for school districts*, government agencies…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
15Exact matchPort Washington, NY, United StatesHQ recorded Sep 20, 2026n/a35 contacts →

Exact match

“We are a non-profit fundraising consultancy focused on sustainable growth for all our partners.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
16Exact matchNewport Beach, CA, United StatesHQ recorded Sep 20, 202611-5032 contacts →

Exact match

“Townsend Public Affairs, Inc.(TPA) is a legislative advocacy and grant writing firm that provides state, federal, and local lobbying and funding services to our clientele of…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
17Exact matchScottsdale, AZ, United StatesHQ recorded Sep 20, 202611-5029 contacts →

Exact match

“Kim Joyce & Associates is proud to be making an impact in communities, in organizations, and in lives, one grant at a time.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
18Exact matchLee's Summit, MO, United StatesHQ recorded Sep 20, 202611-5027 contacts →

Exact match

“Assel Grant Services has extensive experience in the fields of education, healthcare, human services, and the arts.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
19Exact matchHerndon, VA, United StatesHQ recorded Sep 20, 202651-20027 contacts →

Exact match

“ProposalHelper is changing the proposal industry.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
20Exact matchMinneapolis, MN, United StatesHQ recorded Sep 20, 202611-5023 contacts →

Exact match

“Development Strategy - Grant Writing - Creative Communications - Special Events At J.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
21Exact matchLeander, TX, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“Langford Community Management Services, Inc.(LCMS) has been serving Texas Cities and Counties and their grant writing and administration needs for over 38 years.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
22Exact matchChapel Hill, United StatesHQ recorded Sep 20, 202611-5022 contacts →

Exact match

“InteliSpark, LLC is a hands-on business development consulting firm specializing in securing non-dilutive funding for start-ups through the Small Business Innovative Research…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
23Exact matchTacoma, WA, United StatesHQ recorded Sep 20, 202611-5021 contacts →

Exact match

“Public funding-whether grants, stimulus, or some other mechanism-is complex and often inaccessible to those who need it most.”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
24Exact matchSacramento, CA, United StatesHQ recorded Sep 20, 202611-5020 contacts →

Exact match

“Thurmond Consulting LLC is a professional services consulting firm with more than 25 years of experience providing grant-writing services, HUD-funded services, housing development…”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase
25Exact matchAtlanta, GA, United StatesHQ recorded Sep 20, 202611-5019 contacts →

Exact match

“When GrantScribes and Candy Berman & Associates joined forces in 2023 to offer comprehensive grant and event support for nonprofits, we knew it would be a wild ride!”

Recorded in the RevenueBase company graph · Sep 20, 2026 · View company records in RevenueBase

Showing 25 of 1,109 grantwriting services based in the United States

See the full list, filter by size, metro and specialty, and access 1,603 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Grantwriting services based in the United States at a glance

As of Sep 20, 2026
38.6%Verified-email coverage
3.7Average contacts per company
1-10Median size (employees)
3.8%Largest-city concentration · Atlanta
Sep 20, 2026Page data refreshed

Companies by employee count

1-10
986
11-50
104
51-200
16
201-500
3

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 1,109 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United States whose business descriptions match “grantwriting services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,603 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “grantwriting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grantwriting services are there based in the United States?

RevenueBase identified 1,109 company matches for grantwriting services associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Grantworks, INC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most grantwriting services?

Atlanta leads with 42 company records, followed by Washington (28) and Los Angeles (25).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,603 professional contacts with verified work emails tracked across these 1,109 companies; direct dials are available where recorded.

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.

Ready to reach these companies? Verified emails and direct dials for all 1,109 grantwriting services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

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 SmartSearch, 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.