Company lists · Data refreshed September 2026
Top 25 Nonprofit interim management consultants based in Seattle, United States
RevenueBase identified 88 nonprofit interim management consultants headquartered in Seattle, United States as of September 2026 and tracks 333 professional contacts across them, including 117 with verified work emails. Across the United States, New York is the largest hub for this category (194 companies); Seattle has 88.
This list covers nonprofit interim management consultants 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 29, 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 nonprofit interim management consultants based in Seattle, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 68 contacts → | ||||
Strong evidence “BERK is an interdisciplinary consultancy integrating strategy, planning, and policy development; financial and economic analysis; and facilitation, design, and communications.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 56 contacts → | ||||
Partial evidence “We all rise when nonprofits thrive.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 11 contacts → | ||||
Partial evidence “The Ostara Group is an advisor to mission-driven nonprofits.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 10 contacts → | ||||
Partial evidence “LPA is a consulting firm located in the Pacific Northwest and Northeast areas, specializing in leadership and change management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 9 contacts → | ||||
Indirect evidence “AVIE provides business and strategy consulting services to the top technology firms in the greater Seattle area.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 9 contacts → | ||||
Indirect evidence “Joule Growth Partners provides high-quality, right-sized financial and operational leadership and consulting to small, growing, and mid-sized organizations Grounded in smart…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 7 contacts → | ||||
Partial evidence “Clover Search Works provides a full range of search and leadership transition services for nonprofit organizations of all shapes and sizes.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 7 contacts → | ||||
Indirect evidence “Everyone has their superpowers.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Partial evidence “Sparklos is a boutique consultancy firm that supports high-powered executives and aspiring leaders achieve tangible success at an accelerated pace.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 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 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 4 contacts → | ||||
Partial evidence “At Altruist Impact Accelerator, we believe that nonprofits are the backbone of positive change-but too many struggle with limited resources, operational challenges, and funding…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 4 contacts → | ||||
Partial evidence “Aril Consulting: Fundraising & Non-profit Management Services Are you looking to scale up your fundraising program?” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 3 contacts → | ||||
Strong evidence “Management and Marketing Consulting We provide management and marketing consulting to businesses, government agencies and nonprofit organizations.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 3 contacts → | ||||
Indirect evidence “The True North Group is dedicated to providing top-notch, strategic advice to non-profit and government organizations serving vulnerable groups.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 2 contacts → | ||||
Indirect evidence “We are independent school experts.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 2 contacts → | ||||
Indirect 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 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 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 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 1 contacts → | ||||
Strong evidence “Advisor, consultant, turnaround manager, and court appointed receiver with broad range of tools for dealing with businesses and nonprofits going through transition or facing…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 1 contacts → | ||||
Partial evidence “Not your typical organizational development firm, Jan Glick & Associates provides a suite of strategic impact-focused and customized services to address many common nonprofit…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 1 contacts → | ||||
Strong evidence “Public Interest Management Group is a social enterprise that delivers strategic consulting services to mission-driven organizations that build healthy communities and protect the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 1 contacts → | ||||
Indirect evidence “Thompson Philanthropic Consulting provides our partners with transformational growth experiences to enhance your art of leadership and fundraising.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 1 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 1 contacts → | ||||
Partial evidence “Product delivery expertise for nonprofits” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 1 contacts → | ||||
Strong evidence “RoosterRabbitt (RR) is a fundraising consultancy that offers bespoke services to nonprofits.” Source: RevenueBase Database · checked Sep 29, 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: nonprofit interim management consultants. 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 nonprofit interim management consultants.
- Partial evidence
- Its own public description names part of nonprofit interim management consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name nonprofit interim management consultants. 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 88 nonprofit interim management consultants based in Seattle, United States
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 117 reachable decision-makers.
Free signup · no credit card
Nonprofit interim management consultants based in Seattle, United States at a glance
As of Sep 29, 2026Companies by employee count
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 88 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 nonprofit interim management consultants, 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 “nonprofit interim management consultants”. 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 nonprofit interim management consultants), 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 nonprofit interim management consultants, 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, 117 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 29, 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.
Nonprofit interim management consultants by metro in the United States
- Nonprofit interim management consultants in New York194
- Nonprofit interim management consultants in Chicago156
- Nonprofit interim management consultants in Washington154
- Nonprofit interim management consultants in Atlanta103
- Nonprofit interim management consultants in Los Angeles90
- Nonprofit interim management consultants in Dallas69
- Nonprofit interim management consultants in Boston63
- Nonprofit interim management consultants in Denver63
- Nonprofit interim management consultants in Portland63
- Nonprofit interim management consultants in Houston60
- Nonprofit interim management consultants in Philadelphia53
- Nonprofit interim management consultants in San Francisco52
- Nonprofit interim management consultants in Austin47
- Nonprofit interim management consultants in Minneapolis42
- Nonprofit interim management consultants in Phoenix42
- Nonprofit interim management consultants in Indianapolis36
- Nonprofit interim management consultants in Miami36
- Nonprofit interim management consultants in Charlotte34
- Nonprofit interim management consultants in San Diego33
- Nonprofit interim management consultants in Cleveland28
- Nonprofit interim management consultants in Richmond28
- Nonprofit interim management consultants in Kansas City27
- Nonprofit interim management consultants in Nashville27
- Nonprofit interim management consultants in Oakland26
- Nonprofit interim management consultants in Columbus25
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 nonprofit interim management consultants, 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 nonprofit interim management consultants are there based in Seattle, United States?
RevenueBase identified 88 nonprofit interim management consultants 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?
Berk Consulting, INC, headquartered in Seattle, tops this list with the largest team on record.
Which city in the United States has the most nonprofit interim management consultants?
New York leads the United States with 194 headquartered companies, followed by Chicago (156) and Washington (154). Seattle has 88.
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 117 verified decision-maker contacts tracked across these 88 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 29, 2026.
Ready to reach these companies? Verified emails and direct dials for all 88 nonprofit interim management consultants based in Seattle, United States. Start with a free account, no credit card.
Download this list →Related lists
Nonprofit interim management consultants by geography
- Nonprofit interim management consultants based in Melbourne, Australia
- Nonprofit interim management consultants based in Sydney, Australia
- Nonprofit interim management consultants based in Sao Paulo, Brazil
- Nonprofit interim management consultants based in Calgary, Canada
- Nonprofit interim management consultants based in Ottawa, Canada
- Nonprofit interim management consultants based in Toronto, Canada
- Nonprofit interim management consultants based in Vancouver, Canada
- Nonprofit interim management consultants based in Helsinki, Finland
- Nonprofit interim management consultants based in Lyon, France
- Nonprofit interim management consultants based in Paris, France
- Nonprofit interim management consultants based in Berlin, Germany
- Nonprofit interim management consultants based in Hamburg, Germany
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Nonprofit interim management consultants based in Melbourne, Australia
- Nonprofit interim management consultants based in Sydney, Australia
- Nonprofit interim management consultants based in Sao Paulo, Brazil
- Nonprofit interim management consultants based in Calgary, Canada
- Nonprofit interim management consultants based in Ottawa, Canada
- Nonprofit interim management consultants based in Toronto, Canada