Company lists · Data refreshed November 2026

Top 18 Construction consultants based in Seattle, United States

Name: Construction consultants based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 210 companies tracked

RevenueBase identified 210 company matches for construction consultants associated with Seattle, United States as of November 2026 and tracks 5,216 professional contacts across them, including 3,145 with verified work emails. Across the United States, New York is the largest hub for this category (1,165 companies); Seattle has 210.

This list covers company matches for construction consultants 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 November 6, 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 Nov 6, 2026 How this list was built

210Companies

5,216Contacts tracked

3,145Verified emails

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The 18 largest construction consultants based in Seattle, United States

Ranked by team size

Top 18 of 210 company matches for construction consultants based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Sellen Construction	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	501-1,000	495 contacts →
	Exact match “Sellen Construction is a locally owned and operated commercial builder.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Hargis Engineers	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	201-500	196 contacts →
	Exact match “Hargis Engineers is a mechanical, electrical, telecommunications, security, energy consulting engineering, and commissioning firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	BHC Consultants	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	110 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 · Nov 6, 2026 · View company records in RevenueBase
4	Perteet INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	98 contacts →
	Exact match “Perteet is now part of Ardurra, one of the nation’s most dynamic engineering firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Coughlin Porter Lundeen	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	94 contacts →
	Exact match “WHO WE ARE Coughlin Porter Lundeen is a civil and structural engineering firm founded in Seattle with offices in the Pacific and Inland Northwest.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	DP Incorporated General Contractors	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	79 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 · Nov 6, 2026 · View company records in RevenueBase
7	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	69 contacts →
	Exact match “Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Krekow Jennings INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	65 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 · Nov 6, 2026 · View company records in RevenueBase
9	W.G. Clark Construction	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	57 contacts →
	Exact match “W.G.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Furtado	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	49 contacts →
	Exact match “Furtado & Associates, Inc.(Furtado) is a privately held land surveying and construction management consulting firm located in Seattle, Washington.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Marpac Construction	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	44 contacts →
	Exact match “Marpac is a General Contractor based in Seattle, WA.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	MRJ	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	43 contacts →
	Exact match “If you’ve got a vision, we can build it.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Sealaska Constructors	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	40 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 · Nov 6, 2026 · View company records in RevenueBase
14	Interior Technology INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	51-200	34 contacts →
	Exact match “Interior Tech specializes in consultative services to architects, general contractors, and building owners in Oregon and Washington.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Lund Opsahl	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	32 contacts →
	Exact match “Lund Opsahl is an award-winning Structural Engineering firm based in Seattle.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Westlake Consulting Group, LLC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	32 contacts →
	Exact match “Westlake Consulting Group provides trusted development and construction management consulting services along the West Coast.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Delta E Consulting	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	29 contacts →
	Exact match “At Delta E, we specialize in a diverse range of consulting services, including Sustainability, Carbon consulting, Energy services, and design expertise in Mechanical, Electrical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Ecotope, INC	Exact match	Seattle, WA, United StatesHQ recorded Nov 6, 2026	11-50	29 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 · Nov 6, 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 “construction consultants”. 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 18 of 210 construction consultants based in Seattle, United States

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Construction consultants based in Seattle, United States at a glance

As of Nov 6, 2026

60.3%Verified-email coverage

24.8Average contacts per company

1-10Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

115

11-50

51-200

201-500

501-1,000

1,001-5,000

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 210 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 “construction consultants” 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 3,145 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 November 6, 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.

Construction consultants 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 “construction consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many construction consultants are there based in Seattle, United States?

RevenueBase identified 210 company matches for construction consultants associated with Seattle, United States as of November 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?

Sellen Construction 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 construction consultants?

New York leads the United States with 1,165 company records, followed by Houston (728) and Miami (438). Seattle has 210.

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 3,145 professional contacts with verified work emails tracked across these 210 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 November 6, 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.