Company lists · Data refreshed September 2026

Top 22 Mining environmental consulting firms based in Seattle, United States

Name: Mining environmental 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 5, 2026 32 companies tracked

RevenueBase identified 32 mining environmental consulting firms headquartered in Seattle, United States as of September 2026 and tracks 1,598 professional contacts across them, including 795 with verified work emails. Houston is the largest hub.

This list covers mining environmental 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

32Companies

1,598Contacts tracked

795Verified emails

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The 22 largest mining environmental consulting firms based in Seattle, United States

Ranked by team size

Top 22 of 32 mining environmental consulting firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names mining environmental consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Anchor QEAStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	501-1,000	479
	“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Source: company website · checked Sep 5, 2026
2	Landau AssociatesStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	184
	“Landau Associates is an employee-owned firm that provides environmental consulting and risk management for clients across many disciplines including air, noise, water, permitting…” Source: company website · checked Sep 5, 2026
3	Herrera Environmental ConsultantsStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	176
	“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Source: company website · checked Sep 5, 2026
4	Cascadia Consulting GroupStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	110
	“Cascadia Consulting Group is a majority women-owned consulting firm specializing in environmental and sustainability solutions.” Source: company website · checked Sep 5, 2026
5	Hart Crowser, A Division Of Haley & AldrichIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	49
	“Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.” Source: company website · checked Sep 5, 2026
6	Floyd SniderStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	48
	“Floyd\|Snider is a multi-disciplinary environmental consulting firm providing engineering, strategic project management, and scientific expertise to achieve balanced solutions to…” Source: company website · checked Sep 5, 2026
7	Soundearth Strategies, INCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	33
	“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…” Source: company website · checked Sep 5, 2026
8	NVL Laboratories, INCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	31
	Source: company website · checked Sep 5, 2026
9	Raedeke Associates, INCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	14
	“Since 1980, Raedeke (RAD-ĭ-kee) Associates, Inc.” Source: company website · checked Sep 5, 2026
10	EHS International, Inc., Seattle, WAStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	10
	“EHS-International, Inc.(EHSI) is a small business that specializes in providing environmental consulting and industrial hygiene services directed towards environmental assessment…” Source: company website · checked Sep 5, 2026
11	Ridolfi INCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	10
	“Established in 1990, RIDOLFI is an award-winning, small, certified Women’s Business Enterprise (WBE) that specializes in environmental engineering and scientific consulting.” Source: company website · checked Sep 5, 2026
12	Ecochem, INCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	10
	“EcoChem is an environmental consulting firm that specializes in providing quality assurance oversight and management of analytical data in support of various environmental…” Source: company website · checked Sep 5, 2026
13	Pacific RIM Environmental, Inc. PacrimStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	8
	“Pacific Rim Environmental (PacRim) is an environmental consulting firm and laboratory specializing in Regulated Materials Management, asbestos and lead-based paint surveys…” Source: company website · checked Sep 5, 2026
14	Green Earth Operations, INCPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	8
	“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: company website · checked Sep 5, 2026
15	DH Environmental, INCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	7
	Source: company website · checked Sep 5, 2026
16	Crete Consulting INCStrong evidence	Seattle, United StatesHQ checked Sep 5, 2026	1-10	7
	“Environmental/civil consulting and engineering services.” Source: company website · checked Sep 5, 2026
17	Infinity Solutions GroupPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	4
	“Our diverse group of consultants specialize in Environmental Studies, including Forensic Chemistry, Business-to Business (B2B) Marketing and Management, and Computer Systems…” Source: company website · checked Sep 5, 2026
18	BEA EnvironmentalIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	2
	Source: company website · checked Sep 5, 2026
19	Full Circle Environmental, INCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	2
	“Full Circle Environmental, Inc, a private environmental consulting firm, has been providing creative and effective approaches to resource conservation on behalf of business and…” Source: company website · checked Sep 5, 2026
20	NumeriteStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	1
	“Numerite is a technology consulting and development firm for mining operations.” Source: company website · checked Sep 5, 2026
21	Peterman Consulting LLCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	1
	“Peterman Consulting LLC is a environmental consultancy based out of Seattle, Washington, United States.” Source: company website · checked Sep 5, 2026
22	Cogent Environmental Consulting, LLCStrong evidence	Seattle, United StatesHQ checked Sep 5, 2026	1-10	1
	“Cogent Environmental Consulting, LLC is a small, woman-owned Seattle-based environmental consulting firm.” Source: company website · checked Sep 5, 2026

Showing 22 of 32 mining environmental consulting firms based in Seattle, United States

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Mining environmental consulting firms based in Seattle, United States at a glance

As of Sep 5, 2026

11-50Median size (employees)

HoustonLargest hub · 66 HQs

Contacts with mobile numbers

Sep 5, 2026Data 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 this city, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 32 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 mining environmental consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “mining environmental consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among mining environmental 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 an evidence 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, 795 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 5, 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.

Mining environmental consulting firms by metro in the United States

Mining environmental consulting firms in Houston66
Mining environmental consulting firms in Denver37
Mining environmental consulting firms in Austin32
Mining environmental consulting firms in Seattle32
Mining environmental consulting firms in New York27
Mining environmental consulting firms in San Diego27
Mining environmental consulting firms in Tampa26

Frequently asked

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

RevenueBase identified 32 mining environmental 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 has the most mining environmental consulting firms?

Houston leads with 66 headquartered companies, followed by Denver (37) and Austin (32).

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 795 verified decision-maker contacts tracked across these 32 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 5, 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.