Company lists · Data refreshed September 2026

Top 24 Environmental consulting firms based in Phoenix, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 49 companies tracked

RevenueBase identified 49 environmental consulting firms headquartered in Phoenix, United States as of September 2026 and tracks 2,425 professional contacts across them, including 1,431 with verified work emails. Houston is the largest hub.

This list covers environmental consulting firms headquartered in Phoenix, 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 14, 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 14, 2026 86% judged on-target in blind review

49Companies

2,425Contacts tracked

1,431Verified emails

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The 24 largest environmental consulting firms based in Phoenix, United States

Ranked by team size

Top 24 of 49 environmental consulting firms based in Phoenix, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to environmental 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Swca Environmental Consultants	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1,001-5,000	1,629 contacts →
	Strong evidence “Founded on a commitment to sound science and creative solutions, SWCA is a leader in environmental and management consulting services.” Source: RevenueBase Database · checked Sep 14, 2026
2	SEG International	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	51-200	100 contacts →
	Indirect evidence “Sustainability Engineering Group, LLC, DBA SEG International was founded as a leader in sustainable civil engineering site design.” Source: RevenueBase Database · checked Sep 14, 2026
3	NCS Engineers	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	51-200	47 contacts →
	Partial evidence “NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Source: RevenueBase Database · checked Sep 14, 2026
4	Aztec Engineering Group, INC	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	51-200	35 contacts →
	Strong evidence “AZTEC is a multi-discipline Engineering and Environmental consulting firm assisting public and private clients to plan, develop, design, construct, and maintain critical…” Source: RevenueBase Database · checked Sep 14, 2026
5	EPG Environmental Planning Group, LLC	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	51-200	27 contacts →
	Strong evidence “EPG is an interdisciplinary landscape architecture and environmental planning firm providing professional consulting services to public sector clients, government, and private…” Source: RevenueBase Database · checked Sep 14, 2026
6	KCB Consultants LTD	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	21 contacts →
	Partial evidence “KCB Consultants Ltd.(KCBCL) is the US subsidiary of Klohn Crippen Berger, an internationally recognized engineering consulting company.” Source: RevenueBase Database · checked Sep 14, 2026
7	Peterson Associates Consulting Engineers	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	11-50	13 contacts →
	Partial evidence “Peterson Associates is one of the Southwest’s leading consulting engineering firms, specializing in the design of mechanical, plumbing and electrical systems, as well as…” Source: RevenueBase Database · checked Sep 14, 2026
8	Valentine Environmental Engineers, LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	12 contacts →
	Partial evidence “Valentine Environmental Engineers believe that all societies deserve clean water and plenty of it.” Source: RevenueBase Database · checked Sep 14, 2026
9	ETC Compliance Solutions	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	12 contacts →
	Strong evidence “Since 1993, Arizona-based ETC Compliance Solutions has provided environmental health and safety (EHS) training and consulting services throughout North America, Central America…” Source: RevenueBase Database · checked Sep 14, 2026
10	Environmental Technology	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	11-50	9 contacts →
	Partial evidence “Environmental Technology is now operating as EIS – Environmental Infrastructure Solutions (EIS).” Source: RevenueBase Database · checked Sep 14, 2026
11	HF Tech	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	11-50	9 contacts →
	Partial evidence “For the past decade, the team behind HF Tech has been among the leading environmental groups in the Southwest, offering hazardous materials operations, decontamination services…” Source: RevenueBase Database · checked Sep 14, 2026
12	Hiser Burggraff Curtis	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	7 contacts →
	Partial evidence “Hiser Burggraff Curtis is an environmental law firm focusing on permitting, compliance, litigation and sustainability.” Source: RevenueBase Database · checked Sep 14, 2026
13	Sustainagility	Indirect evidence	Phoenix, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “Sustainagility provides the scientific and regulatory expertise you need to improve your company's competitive edge and be a part of the cultural move toward a sustainable future.” Source: RevenueBase Database · checked Sep 14, 2026
14	N. Weiss Associates, Inc. Environmental, Health, And Safety Consulting And Compliance Services	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Indirect evidence “Since 1996 we have provided EHS compliance services to clients ranging from small business to large Fortune 100 companies.” Source: RevenueBase Database · checked Sep 14, 2026
15	Syntech Environmental Management	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	5 contacts →
	Partial evidence “Syntech Environmental Management is your preferred business partner for environmental testing!” Source: RevenueBase Database · checked Sep 14, 2026
16	CM Associates Engineers, Pllc	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Partial evidence “CM Associates Engineers, PLLC (CM) is a full service engineering and consulting firm that specializes in Mechanical, Electrical, Plumbing (MEP) and Fire Protection design, as well…” Source: RevenueBase Database · checked Sep 14, 2026
17	P3 Safety Solutions	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Strong evidence “P3 Safety Solutions is an Environmental Health and Safety consulting and training business, providing consulting and training for employers dedicated to work place safety and…” Source: RevenueBase Database · checked Sep 14, 2026
18	The Mcgovern Group, LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	11-50	4 contacts →
	Partial evidence “The McGovern Group delivers and manages exceptional environmental and third party expertise to the corporate deal and commercial real estate development communities.” Source: RevenueBase Database · checked Sep 14, 2026
19	Contractor Approval Network	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Partial evidence “CAN supports organizations across critical industries with EHS consulting services and software solutions.” Source: RevenueBase Database · checked Sep 14, 2026
20	CK Blueshift	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
21	Matrix Design Group	Partial evidence	Phoenix, United StatesHQ checked Sep 14, 2026	201-500	2 contacts →
	Partial evidence “Matrix is a nationally recognized, award-winning firm delivering engineering, architectural, planning, ecological, environmental, design, construction, program management, and…” Source: RevenueBase Database · checked Sep 14, 2026
22	Agave Archaeology	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	2 contacts →
	Indirect evidence “Agave Archaeology provides expert-level consultation for compliance with federal, state and local archaeological and cultural resource regulations in the US Southwest.” Source: RevenueBase Database · checked Sep 14, 2026
23	Trujillo Consulting Services, LLC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Partial evidence “Trujillo Consulting was built out of a strong desire to help private and public sectors reach their full potential while making the world a better place for future generations.” Source: RevenueBase Database · checked Sep 14, 2026
24	Camhi Environmental Consulting, LLC	Strong evidence	Phoenix, AZ, United StatesHQ checked Sep 14, 2026	1-10	1 contacts →
	Strong evidence “Camhi Environmental Consulting, LLC is an international consulting firm providing innovative and high quality solutions to global environmental issues.” Source: RevenueBase Database · checked Sep 14, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: environmental consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names environmental consulting firms.
Partial evidence: Its own public description names part of environmental consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 49 environmental consulting firms based in Phoenix, United States

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Environmental consulting firms based in Phoenix, United States at a glance

As of Sep 14, 2026

59.0%Verified-email coverage

49.5Average contacts per company

1-10Median size (employees)

293.9%Largest-city concentration · Houston

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Phoenix, so it is reported there. Company counts and contact totals on this page are exact for Phoenix, over 49 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 environmental 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 Phoenix, United States whose own description of what they do matches “environmental 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 environmental 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 environmental consulting firms, and records with no verified work email. Companies headquartered outside Phoenix 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, 1,431 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 14, 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.

Environmental consulting firms by metro in the United States

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 environmental 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 environmental consulting firms are there based in Phoenix, United States?

RevenueBase identified 49 environmental consulting firms headquartered in Phoenix, 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?

Swca Environmental Consultants, headquartered in Phoenix, tops this list with the largest team on record.

Which city has the most environmental consulting firms?

Houston leads with 144 headquartered companies, followed by New York (113) and Seattle (84).

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 1,431 verified decision-maker contacts tracked across these 49 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 14, 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.