Company lists · Data refreshed September 2026

Top 25 Commercial construction consulting firms based in Seattle, United States

Name: Commercial construction 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 23, 2026 142 companies tracked

RevenueBase identified 142 company matches for commercial construction consulting firms associated with Seattle, United States as of September 2026 and tracks 3,179 professional contacts across them, including 1,802 with verified work emails. Across the United States, New York is the largest hub for this category (922 companies); Seattle has 142.

This list covers company matches for commercial construction consulting firms associated with Seattle, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

142Companies

3,179Contacts tracked

1,802Verified emails

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The 25 largest commercial construction consulting firms based in Seattle, United States

Ranked by team size

Top 25 of 142 company matches for commercial construction consulting firms based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Sellen Construction	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	501-1,000	470 contacts →
	Exact match “Sellen Construction is a locally owned and operated commercial builder.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Abbott Construction	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	201-500	327 contacts →
	Exact match “Founded in 1983, Abbott Construction is a progressive West Coast construction group known for its superior management and field team, best-in-class standards and craftsmanship.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	178 contacts →
	Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Säzän Group INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	151 contacts →
	Exact match “Säzän Group is an engineering and consulting firm with offices in Washington, Oregon, and Arizona.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	BHC Consultants	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	109 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Seneca Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	84 contacts →
	Exact match “Seneca Group, a Cumming Group company, provides real estate development management and advisory services to private and public sector clients.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	DP Incorporated General Contractors	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	76 contacts →
	Exact match “In 1988, DP Incorporated was founded to serve the construction requirements of the commercial real estate industry in the greater Puget Sound.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	65 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Krekow Jennings INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	61 contacts →
	Exact match “Krekow Jennings is a diverse and uniquely talented team of builders primarily dedicated to crafting highly custom, architecturally significant residences.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	W.G. Clark Construction	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	54 contacts →
	Exact match “W.G.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Marpac Construction	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	51-200	41 contacts →
	Exact match “Marpac is a General Contractor based in Seattle, WA.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	MRJ	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	41 contacts →
	Exact match “If you’ve got a vision, we can build it.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Sealaska Constructors	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	37 contacts →
	Exact match “Sealaska Constructors is a full service construction management firm specializing in complex, highly sophisticated design and the construction of commercial and industrial…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Ecotope, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	30 contacts →
	Exact match “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Westlake Consulting Group, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	27 contacts →
	Exact match “Westlake Consulting Group provides trusted development and construction management consulting services along the West Coast.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	TCA Architecture Planning Design	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	25 contacts →
	Exact match “TCA represents a 60+ year evolution of experience providing personalized design services for a wide range of challenging and notable projects.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Axiom Design Build	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	19 contacts →
	Exact match “Axiom Design Build is a Seattle based architectural firm and general contractor.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Modern Construction Services	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	19 contacts →
	Exact match “Modern Construction Services, LLC is a Certified Women’s Business Enterprise (WBE) and Certified Small Contractor and Supplier (SCS) providing services for a broad range of…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	Integrated Design Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	16 contacts →
	Exact match “Integrated Design Engineers (idE) is a Seattle-based structural engineering consulting firm founded in 2005.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	NRG Fire Consulting	Exact match	Seattle, United StatesHQ recorded Sep 23, 2026	11-50	15 contacts →
	Exact match “We provide Fire protection consulting and design services throughout the U.S.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Arrive, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	1-10	12 contacts →
	Exact match “Arrive, LLC is a real estate consulting company providing development advisory services for apartment and condominium projects in the Pacific Northwest.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	DCW Cost & Construction Management	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	1-10	12 contacts →
	Exact match “DCW Cost & Construction Management is an independent women-owned third-party consultancy offering a wide array of project management services with offices in Seattle, Washington…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Building Envelope Technology & Research	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	12 contacts →
	Exact match “Building Envelope Technology & Research (BET & R) is a professional roofing, waterproofing, and cladding consulting firm specializing in building envelope design for new and…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
25	Hainline	Exact match	Seattle, WA, United StatesHQ recorded Sep 23, 2026	11-50	12 contacts →
	Exact match “HAINLINE was founded in 1981 to assist owners, architects, and contractors in the construction process.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “commercial construction consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 142 commercial construction consulting firms based in Seattle, United States

See the full list, filter by size, metro and specialty, and access 1,802 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Commercial construction consulting firms based in Seattle, United States at a glance

As of Sep 23, 2026

56.7%Verified-email coverage

22.4Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 142 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Seattle, United States whose business descriptions match “commercial construction consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 1,802 professional contacts with verified work emails across the full matched dataset. 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 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Commercial construction consulting firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “commercial construction consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many commercial construction consulting firms are there based in Seattle, United States?

RevenueBase identified 142 company matches for commercial construction consulting firms associated with Seattle, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Coffman Engineers tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most commercial construction consulting firms?

New York leads the United States with 922 company records, followed by Houston (480) and Miami (355). Seattle has 142.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,802 professional contacts with verified work emails tracked across these 142 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 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 SmartSearch, 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.