Company lists · Data refreshed September 2026

Top 25 Corporate philanthropy advisors based in Washington, United States

RevenueBase identified 66 company matches for corporate philanthropy advisors associated with Washington, United States as of September 2026 and tracks 854 professional contacts across them, including 442 with verified work emails. Across the United States, New York is the largest hub for this category (98 companies); Washington has 66.

This list covers company matches for corporate philanthropy advisors associated with Washington, 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 19, 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 19, 2026 How this list was built
66Companies
854Contacts tracked
442Verified emails
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The 25 largest corporate philanthropy advisors based in Washington, United States

Ranked by team size
Top 25 of 66 company matches for corporate philanthropy advisors based in Washington, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 19, 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 matchWashington, United StatesHQ recorded Sep 19, 202651-200208 contacts →

Exact match

“We are M+R.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
2Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202651-200170 contacts →

Exact match

“Global Impact serves as a trusted philanthropy advisor, intermediary, and nonprofit partner for greater giving.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
3Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202651-20099 contacts →

Exact match

“Orr Group was born out of a need for event management and fundraising support in the philanthropic sector.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
4Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202611-5061 contacts →

Exact match

“Freedman Consulting, LLC, a mission-driven firm, offers strategic consulting services to foundations, nonprofit organizations, and public interest coalitions, advising many of the…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
5Exact matchWashington, DC, United StatesHQ recorded Sep 19, 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 19, 2026 · View company records in RevenueBase
6Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202611-5041 contacts →

Exact match

“The Philanthropy Roundtable is a national association of individual donors, corporate giving officers, and foundation trustees and staff.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
7Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202611-5022 contacts →

Exact match

“The National Committee for Responsive Philanthropy in Washington, D.C, is a national watchdog, research and advocacy organization that promotes philanthropy that serves the public…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
8Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-1014 contacts →

Exact match

“We're on a mission to build a more equitable world.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
9Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202611-5014 contacts →

Exact match

“Spark Point is the resource that nonprofits are hungry for – a thought partner to guide them to an easily implemented, sustainable fundraising strategy and an experienced grant…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
10Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-1014 contacts →

Exact match

“Rising Solutions supports nonprofits, governments and corporations to launch their new ideas for social impact through innovation strategy, professional facilitation…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
11Exact matchWashington, DC, United StatesHQ recorded Sep 19, 202611-5013 contacts →

Exact match

“Bernuth & Williamson provides consulting services in the areas of strategy, change management, and organizational development to leading nonprofits, foundations, associations, and…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
12Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-107 contacts →

Exact match

“D&P is a 100% minority and women-owned consulting firm.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
13Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-106 contacts →

Exact match

“We bring decades of fundraising, organizational development and marketing and communications background to non-profit and for-profit executive leadership, CEOs, philanthropists…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
14Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-105 contacts →

Exact match

“Untraditional Philanthropy is the only impact advisory of its type in the world.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
15Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-103 contacts →

Exact match

“In 2018, GBG was formed to support organizations in the non-profit, philanthropic, and government sectors looking to propel their work forward and make the biggest impact possible.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
16Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-103 contacts →

Exact match

“DiCam is focused on bringing NPO and for-profit partnerships together for sustained social change that impact the health and wealth of underserved communities and Black and Brown…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
17Exact matchWashington, United StatesHQ recorded Sep 19, 20261-103 contacts →

Exact match

“Leone Solutions Group (LSG) helps public institutions and mission-driven organizations turn complexity into clarity and strategy into action.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
18Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“Martlet Insights is a leading consulting firm dedicated to empowering mission-driven organizations to secure the financial support they need to drive growth and create lasting…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
19Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“I provide consulting and research for foundations, donors, and impact investors interested in exploring new fields, understanding the landscape, conducting strategic planning, or…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
20Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“Advising on all matters in the wheelhouse of experienced nonprofit CEOs, COOs, trustees.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
21Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“We guide mission and strategy for purpose-driven organizations, aligning leaders and teams to clarify complexity, adapt quickly, and spark change.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
22Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“Teapot Mountain Advisory, LLC helps boards of directors, CEOs and CDOs develop strategies to establish or accelerate outreach and philanthropy programs.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
23Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“At Grounded Civics, we help individuals and organizations make well-balanced, intentional investments.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
24Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“Give More & Connect” is on a bold mission to save the world, and provides philanthropic consulting and research services.”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase
25Exact matchWashington, DC, United StatesHQ recorded Sep 19, 20261-101 contacts →

Exact match

“We enable leaders and organizations to maximize their success while making a positive impact in the world through the following services: Leadership Advising: We support public…”

Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase

Showing 25 of 66 corporate philanthropy advisors based in Washington, United States

See the full list, filter by size, metro and specialty, and access 442 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Corporate philanthropy advisors based in Washington, United States at a glance

As of Sep 19, 2026
51.8%Verified-email coverage
12.9Average contacts per company
1-10Median size (employees)
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
55
11-50
7
51-200
4

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 66 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 Washington, United States whose business descriptions match “corporate philanthropy advisors” 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 442 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 19, 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 “corporate philanthropy advisors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many corporate philanthropy advisors are there based in Washington, United States?

RevenueBase identified 66 company matches for corporate philanthropy advisors associated with Washington, 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?

M R tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most corporate philanthropy advisors?

New York leads the United States with 98 company records, followed by Chicago (71) and Washington (66).

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 442 professional contacts with verified work emails tracked across these 66 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 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 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.