Company lists · Data refreshed September 2026

Top 25 Geospatial consulting firms based in Seattle, United States

RevenueBase identified 46 geospatial consulting firms headquartered in Seattle, United States as of September 2026 and tracks 2,217 professional contacts across them, including 1,160 with verified work emails. Across the United States, Houston is the largest hub for this category (140 companies); Seattle has 46.

This list covers geospatial 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
46Companies
2,217Contacts tracked
1,160Verified emails
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The 25 largest geospatial consulting firms based in Seattle, United States

Ranked by team size
Top 25 of 46 geospatial 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 geospatial 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
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026501-1,000479 contacts →

Partial evidence

“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026201-500188 contacts →

Partial evidence

“Hargis Engineers is a mechanical, electrical, telecommunications, security, energy consulting engineering, and commissioning firm.”

Source: RevenueBase Database · checked Sep 28, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026201-500181 contacts →

Partial evidence

“Utilicast is more than just a consulting company.”

Source: RevenueBase Database · checked Sep 28, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202651-200178 contacts →

Partial evidence

“Harris Group is a multidiscipline engineering consulting firm with offices located throughout the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial 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
6Partial 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
7Indirect 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
8Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 2026201-50082 contacts →

Partial evidence

“H10 is a Consulting and Project Resources firm headquartered in Seattle, WA.”

Source: RevenueBase Database · checked Sep 28, 2026
9Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5065 contacts →

Partial evidence

“Andersen Bjornstad Kane Jacobs (ABKJ) is a premier consulting design firm in the United States.”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect 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
11Partial 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
12Partial 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
13Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5016 contacts →

Indirect evidence

“At WSE, our focus is on service.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-5013 contacts →

Indirect evidence

“When Integral GIS started, over 20 years ago, we were pioneers in using GIS with new methods and technologies.”

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

Indirect 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

“TFWB Engineers formerly Travis, Fitzmaurice & Associates is an electrical, telecommunications, and security design consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial 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
19Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“Synthos is an agile and responsive solutions provider for all your GIS and mapping-related needs.”

Source: RevenueBase Database · checked Sep 28, 2026
20Strong evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Strong evidence

“Marker Offshore is a geospatial consulting firm dedicated to delivering the data you need with service you require and results you can trust.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Partial evidence

“Big Water Consulting seeks to introduce nonprofits, tribes and individual organizations to the power of data solutions through data collection and ownership in order to better…”

Source: RevenueBase Database · checked Sep 28, 2026
22Indirect 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
23Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 20261-104 contacts →

Indirect evidence

“From GIS, data analysis, and development permitting to envisioning futures with accessible, sustainable, resilient, culturally engaging, and beautiful spaces.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

“Chadwick & Winters Land Surveying is an established land surveying firm in Seattle WA providing mapping, boundary surveys, topographic surveys and construction support to…”

Source: RevenueBase Database · checked Sep 28, 2026
25Indirect evidenceSeattle, WA, United StatesHQ checked Sep 28, 202611-502 contacts →

Indirect evidence

“SpatialDev is a group of creative consultants supporting sustainable development through spatial technology.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 46 geospatial consulting firms based in Seattle, United States

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Geospatial consulting firms based in Seattle, United States at a glance

As of Sep 28, 2026
52.3%Verified-email coverage
48.2Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
12
51-200
6
201-500
4
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 46 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 geospatial 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 “geospatial 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 geospatial 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 geospatial 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, 1,160 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 geospatial 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 geospatial consulting firms are there based in Seattle, United States?

RevenueBase identified 46 geospatial 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?

Anchor QEA, headquartered in Seattle, tops this list with the largest team on record.

Which city in the United States has the most geospatial consulting firms?

Houston leads the United States with 140 headquartered companies, followed by Denver (73) and New York (68). Seattle has 46.

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 1,160 verified decision-maker contacts tracked across these 46 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.

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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 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.