Company lists · Data refreshed September 2026

Top 25 Environmental management consultants based in San Diego, United States

Name: Environmental management consultants based in San Diego, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 46 companies tracked

RevenueBase identified 46 environmental management consultants headquartered in San Diego, United States as of September 2026 and tracks 565 professional contacts across them, including 256 with verified work emails. Across the United States, Houston is the largest hub for this category (145 companies); San Diego has 46.

This list covers environmental management consultants headquartered in San Diego, 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

565Contacts tracked

256Verified emails

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The 25 largest environmental management consultants based in San Diego, United States

Ranked by team size

Top 25 of 46 environmental management consultants based in San Diego, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to environmental management consultants: 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	Recon Environmental, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	84 contacts →
	Partial evidence “Environmental consulting • Ecological restoration • 50+ years of service • 100% employee-owned” Source: RevenueBase Database · checked Sep 28, 2026
2	Occupational Services, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	74 contacts →
	Partial evidence “Occupational Services, Incorporated is a San Diego-based professional consulting firm providing services in the areas of environmental compliance, occupational health and safety…” Source: RevenueBase Database · checked Sep 28, 2026
3	Mcparlane & Associates, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	57 contacts →
	Indirect evidence “McParlane & Associates, Inc.(MPA) is a full-service mechanical, electrical, and plumbing (MEP) engineering consulting firm who delivers an integrated approach in cost-effective…” Source: RevenueBase Database · checked Sep 28, 2026
4	Great Ecology	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	48 contacts →
	Partial evidence “Great Ecology, now part of the True Environmental platform, is a leading ecological consulting and landscape architecture firm that delivers innovative environmental solutions to…” Source: RevenueBase Database · checked Sep 28, 2026
5	KMEA	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	48 contacts →
	Indirect evidence “Company Overview Founded in 1996, KMEA is headquartered in San Diego, California, and has an operations office in San Antonio, TX.” Source: RevenueBase Database · checked Sep 28, 2026
6	Trevet	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	40 contacts →
	Partial evidence “Trevet is a civil and environmental consulting company headquartered in San Diego, California.” Source: RevenueBase Database · checked Sep 28, 2026
7	Hargis Associates, INC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Partial evidence “Hargis + Associates, Inc.(H+A) is an employee-owned, environmental consulting and engineering firm founded in 1979 with a commitment to providing high-quality, cost-effective…” Source: RevenueBase Database · checked Sep 28, 2026
8	Evara Group	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	25 contacts →
	Indirect evidence “EVARA Group is a values-driven multi-discipline consulting firm that advises on and executes complex and strategic initiatives and projects, helping our clients overcome…” Source: RevenueBase Database · checked Sep 28, 2026
9	Torrey Pines Environmental	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	15 contacts →
	Partial evidence “Torrey Pines Environmental is an environmental consulting firm established in 2021 as a collaboration between biologists with over 35 years of combined experience.” Source: RevenueBase Database · checked Sep 28, 2026
10	T3 Consulting, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	12 contacts →
	Indirect evidence “T3 Consulting, Inc.(T3) is a professional services firm that provides exceptional technical solutions focused on value-led service, quality, and dependability.” Source: RevenueBase Database · checked Sep 28, 2026
11	Blackhawk Environmental	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Blackhawk Environmental, a certified DVBE / SDVOSB / City of San Diego SLBE, provides a wide range of cost-effective environmental consulting services in biological & water…” Source: RevenueBase Database · checked Sep 28, 2026
12	Bluescape Environmental	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “BlueScape is a progressive air quality and environmental services firm located in the Western US that specializes in permitting and compliance services.” Source: RevenueBase Database · checked Sep 28, 2026
13	Cityworks People Places, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Indirect evidence “This business closed on 12/31/24.” Source: RevenueBase Database · checked Sep 28, 2026
14	Noreas Environmental Services	Strong evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Strong evidence “The Noreas Environmental Services/NAVFAC Southwest Environmental Services Team is committed to providing Treatment and Waste Management Services in an environmentally responsible…” Source: RevenueBase Database · checked Sep 28, 2026
15	Akela Engineering & Consulting	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	51-200	9 contacts →
	Indirect evidence “Akela Engineering and Consulting is a full-service Mechanical, Electrical, and Plumbing firm providing engineering and consulting services to the construction industry in…” Source: RevenueBase Database · checked Sep 28, 2026
16	Enviroapplications, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Busby Biological Services INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
18	AIR Check Solutions, LLC	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Partial evidence “At Air Check Solutions, LLC (ACS, LLC) our mission is to minimize environmental risks and protect the public health by providing to every client expert knowledge and prompt data…” Source: RevenueBase Database · checked Sep 28, 2026
19	Atlantis Group Land USE Consultants	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Atlantis Group is the premier land use and strategic planning consulting firm in San Diego.” Source: RevenueBase Database · checked Sep 28, 2026
20	Enviromine INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence “EnviroMINE, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
21	EHS Analytical Solutions, INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
22	Rely Environmental	Strong evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Strong evidence “Rely Environmental provides top-notch compliance consulting and management services to businesses, hospitals and public agencies throughout Southern California.” Source: RevenueBase Database · checked Sep 28, 2026
23	Ivet Environmental INC	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
24	Allstate Services	Indirect evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Allstate Services offers asbestos, lead and mold consulting and training services.” Source: RevenueBase Database · checked Sep 28, 2026
25	Proteus Consulting	Partial evidence	San Diego, CA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “PROTEUS Consulting is a boutique professional services consulting firm for the Water sector, specializing in engineering and management consulting.” Source: RevenueBase Database · checked Sep 28, 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 management consultants. 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 management consultants.
Partial evidence: Its own public description names part of environmental management consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental management consultants. 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 25 of 46 environmental management consultants based in San Diego, United States

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Environmental management consultants based in San Diego, United States at a glance

As of Sep 28, 2026

45.3%Verified-email coverage

12.3Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

Email recency for this list is measured across the whole United States list rather than for San Diego, so it is reported there. Company counts and contact totals on this page are exact for San Diego, 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 environmental management consultants, 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 San Diego, United States whose own description of what they do matches “environmental management consultants”. 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 management consultants), 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 management consultants, and records with no verified work email. Companies headquartered outside San Diego 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, 256 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.

Environmental management consultants 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 management consultants, 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 management consultants are there based in San Diego, United States?

RevenueBase identified 46 environmental management consultants headquartered in San Diego, 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?

Recon Environmental, INC, headquartered in San Diego, tops this list with the largest team on record.

Which city in the United States has the most environmental management consultants?

Houston leads the United States with 145 headquartered companies, followed by New York (106) and Chicago (70). San Diego 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 256 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.