Company lists · Data refreshed October 2026

Top 20 Geoscientific engineering services based in Seattle, United States

Name: Geoscientific engineering services based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 26, 2026 34 companies tracked

RevenueBase identified 34 company matches for geoscientific engineering services associated with Seattle, United States as of October 2026 and tracks 2,672 professional contacts across them, including 1,530 with verified work emails. Across the United States, Houston is the largest hub for this category (309 companies); Seattle has 34.

This list covers company matches for geoscientific engineering services 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 October 26, 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 Oct 26, 2026 How this list was built

34Companies

2,672Contacts tracked

1,530Verified emails

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The 20 largest geoscientific engineering services based in Seattle, United States

Ranked by team size

Top 20 of 34 company matches for geoscientific engineering services based in Seattle, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 26, 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 Oct 26, 2026	501-1,000	889 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
2	Anchor QEA	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	501-1,000	474 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 · Oct 26, 2026 · View company records in RevenueBase
3	DCI Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	201-500	420 contacts →
	Exact match “DCI Engineers has been providing client-focused structural and civil engineering services for over three decades.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
4	Harris Group	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	51-200	189 contacts →
	Exact match “Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
5	Floyd Snider	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	53 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 · Oct 26, 2026 · View company records in RevenueBase
6	Furtado	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	51-200	48 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 · Oct 26, 2026 · View company records in RevenueBase
7	Hart Crowser, A Division Of Haley & Aldrich	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	51-200	47 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 · Oct 26, 2026 · View company records in RevenueBase
8	Quantum Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	22 contacts →
	Exact match “Quantum Consulting Engineers offers structural engineering services for new and existing buildings, including new construction, tenant improvements, renovation, and historic…” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
9	LPD Engineering Pllc	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	18 contacts →
	Exact match “Improving our communities through economical, functional and sustainable civil design solutions.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
10	Pangeo, INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	16 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
11	Jacobson Consulting Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	14 contacts →
	Exact match “Your trusted partners, delivering innovative solutions and expert civil site development.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
12	Bush, Roed & Hitchings INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	51-200	13 contacts →
	Exact match “Bush, Roed & Hitchings Inc is a land survey and civil engineering company based out of 15400 SE 30th Pl Bellevue, WA 98007.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
13	Crete Consulting INC	Exact match	Seattle, United StatesHQ recorded Oct 26, 2026	1-10	9 contacts →
	Exact match “Environmental/civil consulting and engineering services.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
14	Green Earth Operations, INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	9 contacts →
	Exact match “Green Earth Operations is an environmental science and engineering firm providing objective analysis and environmentally responsible solutions to meet the needs of our clients.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
15	RHC Engineering	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	11-50	8 contacts →
	Exact match “RHC Engineering is specialized in bridge and structural design.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
16	Adapt, Inc. D B A AS Adapt Consulting	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	1-10	8 contacts →
	Exact match “Adapt Consulting has long provided high quality value added.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
17	Marker Offshore LLC	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	1-10	5 contacts →
	Exact match “Marker Offshore is a geospatial consulting firm dedicated to delivering the data you need with service you require and results you can trust.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
18	Rainier Stormwater Engineering	Exact match	Seattle, United StatesHQ recorded Oct 26, 2026	1-10	4 contacts →
	Exact match “Civil engineering services for residential and commercial clients.” Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
19	FAC Systems INC	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 26, 2026 · View company records in RevenueBase
20	SWS Geothermal	Exact match	Seattle, WA, United StatesHQ recorded Oct 26, 2026	1-10	1 contacts →
	Exact match “SWS Geothermal (Scientific Web Services LLC) delivers state-of-the-art software-based geothermal energy techno-economic analysis and resource assessment, including for…” Recorded in the RevenueBase company graph · Oct 26, 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 “geoscientific engineering services”. 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 20 of 34 geoscientific engineering services based in Seattle, United States

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Geoscientific engineering services based in Seattle, United States at a glance

As of Oct 26, 2026

57.3%Verified-email coverage

78.6Average contacts per company

11-50Median size (employees)

Oct 26, 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 34 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 “geoscientific engineering services” 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 1,530 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 October 26, 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.

Geoscientific engineering services 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 “geoscientific engineering services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many geoscientific engineering services are there based in Seattle, United States?

RevenueBase identified 34 company matches for geoscientific engineering services associated with Seattle, United States as of October 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 geoscientific engineering services?

Houston leads the United States with 309 company records, followed by New York (73) and Denver (69). Seattle has 34.

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 1,530 professional contacts with verified work emails tracked across these 34 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 October 26, 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.