Company lists · Data refreshed September 2026

Top 25 Field analysis and consulting firms based in Seattle, United States

RevenueBase identified 50 field analysis and consulting firms headquartered in Seattle, United States as of September 2026 and tracks 2,094 professional contacts across them, including 1,260 with verified work emails. Across the United States, Houston is the largest hub for this category (109 companies); Seattle has 50.

This list covers field analysis and 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 28, 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 28, 2026 86% judged on-target in blind review
50Companies
2,094Contacts tracked
1,260Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest field analysis and consulting firms based in Seattle, United States

Ranked by team size
Top 25 of 50 field analysis and consulting firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to field analysis and 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026501-1,000859 contacts →

Indirect evidence

“The right team is more than an advantage.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200176 contacts →

Partial evidence

“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200110 contacts →

Partial evidence

“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200109 contacts →

Partial evidence

“BHC Consultants, LLC (BHC) is an employee owned and managed consulting, engineering, building code and construction compliance, and planning firm with offices in Seattle and…”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200108 contacts →

Indirect evidence

“YA Engineering Services is now part of YA Group.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-20049 contacts →

Indirect evidence

“Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5048 contacts →

Partial evidence

“Floyd|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-20046 contacts →

Partial evidence

“Furtado & Associates, Inc.(Furtado) is a privately held land surveying and construction management consulting firm located in Seattle, Washington.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5033 contacts →

Partial evidence

“SoundEarth is a 100% employee-owned environmental consulting firm with more than 40 dedicated and talented professionals working together to improve the environment in which we…”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5016 contacts →

Strong evidence

“Nickerson and Associates LLC is a Seattle-based consulting firm specializing in applying economics, statistics, and computer-related analyses to business and public policy issues…”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5014 contacts →

Indirect evidence

“Since 1980, Raedeke (RAD-ĭ-kee) Associates, Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5011 contacts →

Indirect evidence

“KE|AD (Kent Engineering | Architectural Diagnostics) has office's in both Seattle and Hawaii.”

Source: RevenueBase Database · checked Sep 28, 2026
13Partial evidenceSeattle, United StatesHQ checked Sep 28, 20261-1010 contacts →

Partial evidence

“Guidance Engineering and Applied Research is an engineering and scientific consulting company that provides scientific information for clients who need answers to complex…”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5010 contacts →

Partial evidence

“EHS-International, Inc.(EHSI) is a small business that specializes in providing environmental consulting and industrial hygiene services directed towards environmental assessment…”

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-1010 contacts →

Partial evidence

“EcoChem is an environmental consulting firm that specializes in providing quality assurance oversight and management of analytical data in support of various environmental…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-508 contacts →

Partial evidence

“Green Earth Operations is an environmental science and engineering firm providing objective analysis and environmentally responsible solutions to meet the needs of our clients.”

Source: RevenueBase Database · checked Sep 28, 2026
17Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-507 contacts →

Partial evidence

“At MENG Analysis we are passionate about improving quality of life through optimization of the built environment.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-507 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceSeattle, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Environmental/civil consulting and engineering services.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-107 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Adapt Consulting has long provided high quality value added.”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“We are a team of experienced electrical engineers and consultants, who provide strategic planning and advocacy for our clients around the globe.”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Our diverse group of consultants specialize in Environmental Studies, including Forensic Chemistry, Business-to Business (B2B) Marketing and Management, and Computer Systems…”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-503 contacts →

Partial evidence

“Since 1976, Greenfield Advisors has been on the cutting edge of economic analysis, with a focus on complex real estate issues such as litigation, development, and preservation.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 50 field analysis and consulting 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 1,260 reachable decision-makers.

Free signup · no credit card

View the full list →

Field analysis and consulting firms based in Seattle, United States at a glance

As of Sep 28, 2026
60.2%Verified-email coverage
41.9Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
25
11-50
17
51-200
6
201-500
1
501-1,000
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 50 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 field analysis and 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 “field analysis and 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 field analysis and 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 field analysis and 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, 1,260 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 28, 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.

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 field analysis and 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 field analysis and consulting firms are there based in Seattle, United States?

RevenueBase identified 50 field analysis and 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?

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

Which city in the United States has the most field analysis and consulting firms?

Houston leads the United States with 109 headquartered companies, followed by New York (98) and Chicago (52). Seattle has 50.

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 1,260 verified decision-maker contacts tracked across these 50 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 28, 2026.

Ready to reach these companies? Verified emails and direct dials for all 50 field analysis and consulting 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.