Company lists · Data refreshed September 2026

Top 24 Public sector leadership development organizations based in Seattle, United States

Name: Public sector leadership development organizations based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 55 companies tracked

RevenueBase identified 55 public sector leadership development organizations headquartered in Seattle, United States as of September 2026 and tracks 205 professional contacts across them, including 79 with verified work emails. New York is the largest hub.

This list covers public sector leadership development organizations 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

55Companies

205Contacts tracked

79Verified emails

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The 24 largest public sector leadership development organizations based in Seattle, United States

Ranked by team size

Top 24 of 55 public sector leadership development organizations based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to public sector leadership development organizations: 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	Waldron CPI NOW Sparkeffect	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	51-200	29 contacts →
	Indirect evidence “Waldron CPI (a Career Partners International affiliate) is now SparkEffect.” Source: RevenueBase Database · checked Sep 20, 2026
2	Henley Leadership Group	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “For over 20 years, Henley Leadership Group in Seattle, Washington, has partnered in developing workplaces that energize people to produce extraordinary results.” Source: RevenueBase Database · checked Sep 20, 2026
3	Cambridge Leadership Associates	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	11-50	12 contacts →
	Strong evidence “Cambridge Leadership Associates (CLA) is an international leadership development practice and the Home of Adaptive Leadership.” Source: RevenueBase Database · checked Sep 20, 2026
4	Levelup Economy	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “At LevelUp, we remove obstacles and build sustainable systems that fuel personal and collective success.” Source: RevenueBase Database · checked Sep 20, 2026
5	Perennial	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	9 contacts →
	Strong evidence “Perennial's mission is to reawaken the roots of leadership by fostering development in leaders of social change, enabling them to confront today's challenges with resilience and a…” Source: RevenueBase Database · checked Sep 20, 2026
6	Center For Ethical Leadership	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	5 contacts →
	Partial evidence “The Center for Ethical Leadership inspires and prepares diverse people to lead collaboratively with a commitment to personal integrity and social justice for all.” Source: RevenueBase Database · checked Sep 20, 2026
7	Leadership & CO	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	11-50	5 contacts →
	Indirect evidence “Curious leaders explore.” Source: RevenueBase Database · checked Sep 20, 2026
8	Imago, LLC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 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 20, 2026
9	M3 Leadership Group And Academy	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	4 contacts →
	Partial evidence “We provide high-quality leadership training and solutions to businesses and government organizations, including financial services, technology, life sciences, healthcare, higher…” Source: RevenueBase Database · checked Sep 20, 2026
10	Bushwick Northwest	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Indirect evidence “BUSHWICK NORTHWEST is a professional training & coaching company based out of 2207 S HANFORD ST, SEATTLE, Washington, United States.” Source: RevenueBase Database · checked Sep 20, 2026
11	Shorthand Consulting	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	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 20, 2026
12	Nordic Scholars Leadership Institute	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Strong evidence “Leadership research and program development in the Nordics for transformational leadership.” Source: RevenueBase Database · checked Sep 20, 2026
13	Leadershift, LLC	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Strong evidence “LeaderShift is a talent development and executive coaching firm that works with established and emerging leaders across private companies, government and social sector…” Source: RevenueBase Database · checked Sep 20, 2026
14	Dr. Lizza	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “Executive coaching, consulting, and leadership development” Source: RevenueBase Database · checked Sep 20, 2026
15	Umbach Leadership Consulting	Indirect evidence	Seattle, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Andrea Umbach is an experienced executive coach to leaders and senior managers of global technology corporations, technology startups, media and professional services companies…” Source: RevenueBase Database · checked Sep 20, 2026
16	Seasons Leadership	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “At Seasons Leadership, we believe that great leadership is not an accident-it’s a journey.” Source: RevenueBase Database · checked Sep 20, 2026
17	Counterspace Consulting	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “Counterspace is a career and leadership firm focused on developing and facilitating transformative experiences for clients.” Source: RevenueBase Database · checked Sep 20, 2026
18	TWB Consulting	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “TWB Consulting is a dynamic firm dedicated to empowering organizations through comprehensive and customized solutions in professional development, leadership coaching, strategic…” Source: RevenueBase Database · checked Sep 20, 2026
19	Strategic Leader Development	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Professionals at all levels need to be strategic.” Source: RevenueBase Database · checked Sep 20, 2026
20	Path Forward Leadership	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “At Path Forward Leadership, we are dedicated to unlocking the potential within every leader and organization.” Source: RevenueBase Database · checked Sep 20, 2026
21	Talonn LLC	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Partial evidence “A recent Huffington Post article reported nearly 60 percent of US companies are facing leadership talent shortages.” Source: RevenueBase Database · checked Sep 20, 2026
22	The Essential Group LLC	Strong evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Strong evidence “We are a boutique leadership development consultancy, providing targeted performance elevating solutions to elite organizations (including Adidas, Apple, Intel, Facebook…” Source: RevenueBase Database · checked Sep 20, 2026
23	Executive Mentors & Trainers	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “Executive Mentors & Trainers is a management consulting company based out of 2302 Broadway E, Seattle, Washington, United States.” Source: RevenueBase Database · checked Sep 20, 2026
24	Simthing NEW	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	1-10	1 contacts →
	Indirect evidence “We manufacture learning experience that help leaders to become better people.because good people become better leaders” Source: RevenueBase Database · checked Sep 20, 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: public sector leadership development organizations. 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 public sector leadership development organizations.
Partial evidence: Its own public description names part of public sector leadership development organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public sector leadership development organizations. 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 24 of 55 public sector leadership development organizations based in Seattle, United States

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Public sector leadership development organizations based in Seattle, United States at a glance

As of Sep 20, 2026

38.5%Verified-email coverage

3.7Average contacts per company

1-10Median size (employees)

281.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

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 55 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 public sector leadership development organizations, 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 “public sector leadership development organizations”. 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 public sector leadership development organizations), 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 public sector leadership development organizations, 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, 79 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.

Public sector leadership development organizations 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 public sector leadership development organizations, 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 public sector leadership development organizations are there based in Seattle, United States?

RevenueBase identified 55 public sector leadership development organizations 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?

Waldron CPI NOW Sparkeffect, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most public sector leadership development organizations?

New York leads with 155 headquartered companies, followed by Atlanta (110) and Washington (106).

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 79 verified decision-maker contacts tracked across these 55 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.