Skip to main content

Company lists · Data refreshed September 2026

Top 25 Consultancy firms based in Seattle, United States

Compiled by the RevenueBase Data Team Data refreshed Sep 24, 2026 326 companies tracked

RevenueBase identified 326 consultancy firms headquartered in Seattle, United States as of September 2026 and tracks 5,711 professional contacts across them, including 2,894 with verified work emails. New York is the largest hub.

This list covers consultancy 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 24, 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 24, 2026 86% judged on-target in blind review
326Companies
5,711Contacts tracked
2,894Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest consultancy firms based in Seattle, United States

Ranked by team size
Top 25 of 326 consultancy firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to consultancy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1
Kpff Consulting Engineers
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 20261,001-5,0001,487 contacts →

Indirect evidence

“KPFF is a multi-office, multi-discipline engineering firm.”

Source: RevenueBase Database · checked Sep 24, 2026
2
Coffman Engineers
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026501-1,000859 contacts →

Indirect evidence

“The right team is more than an advantage.”

Source: RevenueBase Database · checked Sep 24, 2026
3
Point B
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026501-1,000656 contacts →

Indirect evidence

“At Point B, we help organizations adapt and thrive in a world that refuses to stand still.”

Source: RevenueBase Database · checked Sep 24, 2026
4
Wimmer Solutions
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026501-1,000262 contacts →

Indirect evidence

“We help you to see the full picture, bringing our experts together with you to co-develop approaches and operationalize plans across the dimension of strategy, people, process…”

Source: RevenueBase Database · checked Sep 24, 2026
5
Bridge Partners
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026201-500247 contacts →

Indirect evidence

“Bridge Partners is a people-focused, customer-driven consulting firm that helps organizations transform to drive revenue growth, adapt to change, and create customer value.”

Source: RevenueBase Database · checked Sep 24, 2026
6
Logic20 20, INC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026201-500240 contacts →

Indirect evidence

“Headquartered in Seattle with offices nationwide, we've been helping clients address their toughest challenges-and achieve their most ambitious goals-since 2005.”

Source: RevenueBase Database · checked Sep 24, 2026
7
Harris Group
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202651-200178 contacts →

Indirect evidence

“Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.”

Source: RevenueBase Database · checked Sep 24, 2026
8
TWO Degrees
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 2026n/a99 contacts →

Indirect evidence

“LOVE YOUR WORK AND LIFE.”

Source: RevenueBase Database · checked Sep 24, 2026
9
Berk Consulting, INC
Strong evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5068 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 24, 2026
10
Turning Point Strategic Advisors
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5046 contacts →

Indirect evidence

“Our goal is simple: We strive to empower businesses with the tools and expertise they need to thrive.”

Source: RevenueBase Database · checked Sep 24, 2026
11
Bryant Christie INC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5039 contacts →

Indirect evidence

“Bryant Christie Inc.(BCI) helps companies and organizations open, access, and expand international markets.”

Source: RevenueBase Database · checked Sep 24, 2026
12
Decision Support Consulting LLC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202651-20030 contacts →

Indirect evidence

“A multidisciplinary group of experts that supports business owners and directors in analyzing their companies to identify issues or opportunities and find alternative solutions…”

Source: RevenueBase Database · checked Sep 24, 2026
13
Turnpoint
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5029 contacts →

Indirect evidence

“Our company is a boutique IT consulting firm providing high-level IT consulting, outsourced IT management, and help desk services to small- and medium-sized businesses in the…”

Source: RevenueBase Database · checked Sep 24, 2026
14
AMP Services, LLC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202651-20029 contacts →

Indirect evidence

“AMP Services, LLC is an Accounting, Management consulting, and Professional services firm for multi-unit restaurant and retail companies.”

Source: RevenueBase Database · checked Sep 24, 2026
15
Exit83 Consulting
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202651-20025 contacts →

Indirect evidence

“Since 2007, EXIT83 Consulting has been assisting companies with Website Development, Software Architecture, Mobile Application Development, Business Analysis and Fundraising…”

Source: RevenueBase Database · checked Sep 24, 2026
16
Zeevo Group
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5023 contacts →

Indirect evidence

“Zeevo delivers comprehensive solutions designed to improve the effectiveness and success of our clients’ processes, policies, teams, and technology.”

Source: RevenueBase Database · checked Sep 24, 2026
17
Zachary Scott
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5019 contacts →

Indirect evidence

“Zachary Scott was founded in 1991 with a simple goal – be a trustworthy partner and advisor for privately-held business owners and managers to help them build their businesses…”

Source: RevenueBase Database · checked Sep 24, 2026
18
Tokusaku Consulting
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5017 contacts →

Indirect evidence

“tō·kü·sȯ·kü/ A well thought plan TokuSaku Consulting is a management and technology consulting company dedicated to driving best-of-class solutions with innovative approaches.”

Source: RevenueBase Database · checked Sep 24, 2026
19
Oxygen EXP
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5017 contacts →

Indirect evidence

“Oxygen is a boutique consulting services firm that drives business growth for corporate enterprise and mid-market companies.”

Source: RevenueBase Database · checked Sep 24, 2026
20
Lake Partners Strategy Consultants
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5016 contacts →

Indirect evidence

“Lake Partners offers high-end strategy consulting without the high-end attitude.”

Source: RevenueBase Database · checked Sep 24, 2026
21
Loopie
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5016 contacts →

Indirect evidence

“At Loopie, we help businesses unlock their full potential by leveraging data-driven insights and cutting-edge strategies.”

Source: RevenueBase Database · checked Sep 24, 2026
22
Market Insights, INC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 20261-1015 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 24, 2026
23
FBO Partners, LLC
Strong evidenceSeattle, WA, United StatesHQ checked Sep 24, 20261-1015 contacts →

Strong evidence

“Founded in 2014, FBO Partners is an aviation consultancy providing business management advisory services to Fixed Base Operations (FBOs).”

Source: RevenueBase Database · checked Sep 24, 2026
24
OTB Solutions
Strong evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5014 contacts →

Strong evidence

“We Think Outside the Box to Deliver Exceptional Results If you’re thinking of hiring a consulting firm, consider this: Good consultants bring strategic advice to solve your…”

Source: RevenueBase Database · checked Sep 24, 2026
25
Camber Consulting LLC
Indirect evidenceSeattle, WA, United StatesHQ checked Sep 24, 202611-5013 contacts →

Indirect evidence

“Camber Consulting LLC was founded in 2011 with the goal of providing specialized finance, accounting, and IT project management services to clients in the Pacific Northwest and…”

Source: RevenueBase Database · checked Sep 24, 2026

Showing 25 of 326 consultancy firms based in Seattle, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 2,894 reachable decision-makers.

Free signup · no credit card

View the full list →

Consultancy firms based in Seattle, United States at a glance

As of Sep 24, 2026
50.7%Verified-email coverage
17.5Average contacts per company
1-10Median size (employees)
589.9%Largest-city concentration · New York
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
262
11-50
48
51-200
8
201-500
2
501-1,000
3
1,001-5,000
1
5,001-10,000
1
10001+
1

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 326 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 consultancy 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 “consultancy 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 consultancy 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 consultancy 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, 2,894 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 24, 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.

Consultancy 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 consultancy 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 consultancy firms are there based in Seattle, United States?

RevenueBase identified 326 consultancy 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?

Kpff Consulting Engineers, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most consultancy firms?

New York leads with 1923 headquartered companies, followed by Chicago (827) and Atlanta (777).

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 2,894 verified decision-maker contacts tracked across these 326 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 24, 2026.

Ready to reach these companies? Verified emails and direct dials for all 326 consultancy firms based in Seattle, 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 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