Company lists · Data refreshed September 2026

Top 25 Environmental consulting firms for construction based in Seattle, United States

Name: Environmental consulting firms for construction based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 71 companies tracked

RevenueBase identified 71 company matches for environmental consulting firms for construction associated with Seattle, United States as of September 2026 and tracks 4,170 professional contacts across them, including 2,665 with verified work emails. Across the United States, New York is the largest hub for this category (184 companies); Seattle has 71.

This list covers company matches for environmental consulting firms for construction 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 28, 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 28, 2026 How this list was built

71Companies

4,170Contacts tracked

2,665Verified emails

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

Ranked by team size

Top 25 of 71 company matches for environmental consulting firms for construction based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Parametrix	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	880 contacts →
	Exact match “At Parametrix, we help our clients imagine what's possible.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	859 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Anchor QEA	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	501-1,000	479 contacts →
	Exact match “Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Landau Associates	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	184 contacts →
	Exact match “Landau Associates is an employee-owned firm that provides environmental consulting and risk management for clients across many disciplines including air, noise, water, permitting…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
6	Herrera Environmental Consultants	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	176 contacts →
	Exact match “Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Perteet INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	126 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Cascadia Consulting Group	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	110 contacts →
	Exact match “Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	BHC Consultants	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
10	ABKJ	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
11	Neudorfer Engineers, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	51 contacts →
	Exact match “Neudorfer Engineers is an integrated, multi-disciplinary firm with experts in a variety of project types.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Hart Crowser, A Division Of Haley & Aldrich	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	49 contacts →
	Exact match “Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Floyd Snider	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	48 contacts →
	Exact match “Floyd\|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Furtado	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	51-200	46 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 · Sep 28, 2026 · View company records in RevenueBase
15	Confluence Environmental Company	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	37 contacts →
	Exact match “Confluence specializes in environmental science, project delivery, and regulatory strategy and compliance.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Soundearth Strategies, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	33 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	NVL Laboratories, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	31 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Ecotope, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 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 28, 2026 · View company records in RevenueBase
19	Jimale Technical Services, LLC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	28 contacts →
	Exact match “JTS is a minority-owned, woman-led firm that has delivered quality construction management and project controls consulting services since 1993.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Delta E Consulting	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	22 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 · Sep 28, 2026 · View company records in RevenueBase
21	LPD Engineering Pllc	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Improving our communities through economical, functional and sustainable civil design solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Watershed Science & Engineering	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “At WSE, our focus is on service.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Raedeke Associates, INC	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	14 contacts →
	Exact match “Since 1980, Raedeke (RAD-ĭ-kee) Associates, Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Tree Solutions INC	Exact match	Seattle, United StatesHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Urban Forestry and Arboriculture Consulting Services Tree Solutions Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Jacobson Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “Your trusted partners, delivering innovative solutions and expert civil site development.” Recorded in the RevenueBase company graph · Sep 28, 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 “environmental consulting firms for construction”. 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 71 environmental consulting firms for construction based in Seattle, United States

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

As of Sep 28, 2026

63.9%Verified-email coverage

58.7Average contacts per company

11-50Median size (employees)

Sep 28, 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 71 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 “environmental consulting firms for construction” 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 2,665 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 28, 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.

Environmental consulting firms for construction 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 “environmental consulting firms for construction”; each Exact match badge shows search membership, not an individual similarity or quality score.

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

RevenueBase identified 71 company matches for environmental consulting firms for construction 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?

Parametrix 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 environmental consulting firms for construction?

New York leads the United States with 184 company records, followed by Houston (170) and Austin (79). Seattle has 71.

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 2,665 professional contacts with verified work emails tracked across these 71 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 28, 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.