Company lists · Data refreshed September 2026

Top 25 Philanthropy consulting firms based in Seattle, United States

Name: Philanthropy consulting firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 56 companies tracked

RevenueBase identified 56 philanthropy consulting firms headquartered in Seattle, United States as of September 2026 and tracks 164 professional contacts across them, including 63 with verified work emails. New York is the largest hub.

This list covers philanthropy consulting firms headquartered in Seattle, 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 21, 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 21, 2026 86% judged on-target in blind review

56Companies

164Contacts tracked

63Verified emails

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The 25 largest philanthropy consulting firms based in Seattle, United States

Ranked by team size

Top 25 of 56 philanthropy consulting firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to philanthropy consulting firms: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Daylight	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	19 contacts →
	Partial evidence “Daylight is a leading professional development platform equipping advisors with the confidence, competence, and cultural dexterity to grow their philanthropic planning practice.” Source: RevenueBase Database · checked Sep 21, 2026
2	The Ostara Group	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	11-50	11 contacts →
	Indirect evidence “The Ostara Group is an advisor to mission-driven nonprofits.” Source: RevenueBase Database · checked Sep 21, 2026
3	Alithi Management Consulting	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	11-50	10 contacts →
	Indirect evidence “Alithi’s team of expert strategists, policy leaders, sourcing specialists, education reformers, community builders, data scientists, and impact experts have spent decades honing…” Source: RevenueBase Database · checked Sep 21, 2026
4	Phīla Engaged Giving	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	10 contacts →
	Partial evidence “Phīla Engaged Giving is an award-winning philanthropic advisory firm redefining how high-net-wealth givers deploy capital for good.” Source: RevenueBase Database · checked Sep 21, 2026
5	The Giving Practice At Philanthropy Northwest	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	11-50	9 contacts →
	Partial evidence “The Giving Practice at Philanthropy Northwest is a team of experienced consultants committed to supporting vibrant communities through equitable, collaborative and effective…” Source: RevenueBase Database · checked Sep 21, 2026
6	Altruist Partners	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	11-50	6 contacts →
	Indirect evidence “Altruist Partners helps mission-driven organizations of all types make even their most ambitious social impact goals a reality.” Source: RevenueBase Database · checked Sep 21, 2026
7	Imago, LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Indirect evidence “Imago is here to support you in becoming radically responsible for the talents that you have been given, so you can break the old systems that no longer serve us and build new…” Source: RevenueBase Database · checked Sep 21, 2026
8	Luma Consulting, LLC	Partial evidence	Seattle, United StatesHQ checked Sep 21, 2026	1-10	4 contacts →
	Partial evidence “Luma Consulting LLC works with nonprofit organizations and foundations that want assistance with strategic planning, developing nonprofit business plans, implementing new…” Source: RevenueBase Database · checked Sep 21, 2026
9	Bloom Grant Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “Bloom Grant Consulting uses our decade of collective nonprofit experience to build grant programs to be more like fireweed: grounded, restorative and prolific.” Source: RevenueBase Database · checked Sep 21, 2026
10	Swatch Junkie Creative	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Partial evidence “Swatch Junkie Creative helps companies maximize the impact of their philanthropic mission through thoughtful design, modern technology and digital communication.” Source: RevenueBase Database · checked Sep 21, 2026
11	The Harper Consulting Group, LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	3 contacts →
	Indirect evidence “Helping organizations THRIVE through innovative strategy and rock-solid support!” Source: RevenueBase Database · checked Sep 21, 2026
12	T. Carey Consulting	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Indirect evidence “We are independent school experts.” Source: RevenueBase Database · checked Sep 21, 2026
13	Shorthand Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Shorthand Consulting offers leaders the tools and inspiration to address big challenges, do their best work, make a meaningful difference, and have fun doing it.” Source: RevenueBase Database · checked Sep 21, 2026
14	Flicker Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Flicker Consulting provides expert fundraising and strategic consulting for nonprofits working to make our communities better.” Source: RevenueBase Database · checked Sep 21, 2026
15	Cornerstone Consulting, Seattle & Bellingham, WA	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	2 contacts →
	Partial evidence “Cornerstone Consulting specializes in working with non-profit organizations in the Pacific Northwest to build innovative donor education programs and effective major gift…” Source: RevenueBase Database · checked Sep 21, 2026
16	Cross Sector Impact, LLC	Strong evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Strong evidence “Cross Sector Impact is a social change and impact consulting firm that sits within the overlapping space of nonprofits, corporations, and philanthropy.” Source: RevenueBase Database · checked Sep 21, 2026
17	Sundae Shop Consulting	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “Product delivery expertise for nonprofits” Source: RevenueBase Database · checked Sep 21, 2026
18	Thompson Philanthropic Consulting	Strong evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Strong evidence “Thompson Philanthropic Consulting provides our partners with transformational growth experiences to enhance your art of leadership and fundraising.” Source: RevenueBase Database · checked Sep 21, 2026
19	Clear Moon Consulting	Indirect evidence	Seattle, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 21, 2026
20	Roosterrabbitt LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “RoosterRabbitt (RR) is a fundraising consultancy that offers bespoke services to nonprofits.” Source: RevenueBase Database · checked Sep 21, 2026
21	Russell Advisory Services, LLC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Russell Advisory Services works with private, corporate and community foundations to develop data-driven philanthropic strategies on issues ranging from educational attainment and…” Source: RevenueBase Database · checked Sep 21, 2026
22	Barbara Rosen Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Barbara Rosen (BR) Consulting helps organizations to develop, improve, and scale social impact programs.” Source: RevenueBase Database · checked Sep 21, 2026
23	Kiana Scott Strategies	Strong evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Strong evidence “Kiana Scott Strategies offers communication and strategy consulting at the intersection of philanthropy, government relations, and public policy.” Source: RevenueBase Database · checked Sep 21, 2026
24	Seismic Philanthropy	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Indirect evidence “We offer customized services to meet the unique needs of clients who have a wide range of beliefs, goals, and budgets.” Source: RevenueBase Database · checked Sep 21, 2026
25	Trilogy Philanthropic	Partial evidence	Seattle, WA, United StatesHQ checked Sep 21, 2026	1-10	1 contacts →
	Partial evidence “Trilogy Philanthropic helpings non-profit organizations develop and implement a comprehensive approach to fundraising that delivers results.” Source: RevenueBase Database · checked Sep 21, 2026

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: philanthropy consulting firms. 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 philanthropy consulting firms.
Partial evidence: Its own public description names part of philanthropy consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name philanthropy consulting firms. 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 56 philanthropy consulting firms based in Seattle, United States

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Philanthropy consulting firms based in Seattle, United States at a glance

As of Sep 21, 2026

38.4%Verified-email coverage

2.9Average contacts per company

1-10Median size (employees)

312.5%Largest-city concentration · New York

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 56 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 philanthropy consulting firms, 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 Seattle, United States whose own description of what they do matches “philanthropy consulting firms”. 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 philanthropy consulting firms), 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 philanthropy consulting firms, and records with no verified work email. Companies headquartered outside Seattle 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, 63 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 21, 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.

Philanthropy consulting firms by metro in the United States

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 philanthropy consulting firms, 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 philanthropy consulting firms are there based in Seattle, United States?

RevenueBase identified 56 philanthropy consulting firms headquartered in Seattle, 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?

Daylight, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most philanthropy consulting firms?

New York leads with 175 headquartered companies, followed by Washington (129) and Chicago (123).

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 63 verified decision-maker contacts tracked across these 56 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 21, 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.