Company lists · Data refreshed September 2026

Top 25 Environmental engineering firms based in Austin, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 73 companies tracked

RevenueBase identified 73 environmental engineering firms headquartered in Austin, United States as of September 2026 and tracks 1,213 professional contacts across them, including 537 with verified work emails. Houston is the largest hub.

This list covers environmental engineering firms headquartered in Austin, 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 16, 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 16, 2026 86% judged on-target in blind review

73Companies

1,213Contacts tracked

537Verified emails

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The 25 largest environmental engineering firms based in Austin, United States

Ranked by team size

Top 25 of 73 environmental engineering firms based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to environmental engineering 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	Intera Incorporated	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	201-500	259 contacts →
	Strong evidence “Established in 1974, INTERA is a geosciences and engineering consulting firm focused on providing water resources and supply, environmental, mining, radioactive waste isolation…” Source: RevenueBase Database · checked Sep 16, 2026
2	Doucet, A Kleinfelder Company	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	51-200	88 contacts →
	Strong evidence “The Kleinfelder Group, Inc.(“Kleinfelder”), a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional…” Source: RevenueBase Database · checked Sep 16, 2026
3	K Friese Associates	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	59 contacts →
	Partial evidence “K Friese + Associates (KFA) provides civil engineering consulting services to our public sector clients with special emphasis on water, wastewater, transportation and drainage…” Source: RevenueBase Database · checked Sep 16, 2026
4	Edge Engineering, Pllc	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	45 contacts →
	Partial evidence “EDGE Engineering provides civil engineering consulting services with special emphasis on stormwater management, drainage design, 2D hydraulic modeling, and project management.” Source: RevenueBase Database · checked Sep 16, 2026
5	Hicks & Company Environmental Archeological Consultants	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	34 contacts →
	Partial evidence “Hicks & Company Environmental/Archeological Consultants is a small, woman-owned environmental consulting firm that provides the full range of environmental management and planning…” Source: RevenueBase Database · checked Sep 16, 2026
6	Baer Engineering & Environmental Consulting, INC	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	32 contacts →
	Strong evidence “About Baer Engineering and Environmental Consulting, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
7	BIG RED DOG Engineering Consulting	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	501-1,000	31 contacts →
	Partial evidence “BIG RED DOG (BRD) is a Texas-based engineering firm that specializes in Civil, MEP, Structural, Traffic, and Transportation Engineering for real estate, infrastructure, and…” Source: RevenueBase Database · checked Sep 16, 2026
8	Ranger Environmental Services, LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	25 contacts →
	Partial evidence “Ranger is an environmental consulting company founded in Austin, Texas in 1992 which offers a broad range of services specializing in environmental assessment and remediation.” Source: RevenueBase Database · checked Sep 16, 2026
9	DCS	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	23 contacts →
	Partial evidence “DCS is a full-service civil engineering consulting firm offering expertise focused on land development, water, and wastewater treatment facilities, municipal infrastructure, site…” Source: RevenueBase Database · checked Sep 16, 2026
10	SQ Environmental, LLC	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	21 contacts →
	Strong evidence “SQ Environmental, LLC (SQE) is a full-service environmental engineering and consulting firm with a team of professionals dedicated to providing high-quality, cost-effective…” Source: RevenueBase Database · checked Sep 16, 2026
11	Scheibe Consulting, LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	20 contacts →
	Partial evidence “Scheibe Consulting is a full-service Civil Engineering firm with office in Austin and Harlingen, Texas.” Source: RevenueBase Database · checked Sep 16, 2026
12	Bright SKY Environmental	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	19 contacts →
	Indirect evidence “We deploy decades of hard data to engineer your regulatory approvals and lock down your timeline.” Source: RevenueBase Database · checked Sep 16, 2026
13	Jones-Heroy & Associates, INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Jones-Heroy & Associates is a civil engineering firm specializing in the water and wastewater industry with offices located in Austin, Dallas and Lampasas.” Source: RevenueBase Database · checked Sep 16, 2026
14	Environmental Survey Consulting	Partial evidence	Austin, United StatesHQ checked Sep 16, 2026	11-50	18 contacts →
	Partial evidence “Environmental Survey Consulting was founded in 1984.” Source: RevenueBase Database · checked Sep 16, 2026
15	Waterloo MEP Engineering	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	15 contacts →
	Partial evidence “Waterloo\|MEP Engineering, LLC is a forward-thinking mechanical, electrical, and plumbing engineering firm focused on delivering superior design solutions with attentive client…” Source: RevenueBase Database · checked Sep 16, 2026
16	Capitol Environmental, INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
17	Lone Wolf Resources, LLC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	51-200	15 contacts →
	Partial evidence “Lone Wolf Resources, LLC (LWR) is an environmental construction company, specializing in remediation and treatment of impacted soils, sediments, and water.” Source: RevenueBase Database · checked Sep 16, 2026
18	Austin Civil Engineering INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1-10	12 contacts →
	Partial evidence “Developing Austin and Surrounding Areas for Over 20 Years Austin Civil Engineering, Inc.” Source: RevenueBase Database · checked Sep 16, 2026
19	DEMSI	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	201-500	12 contacts →
	Strong evidence “DEMSI provides professional services such as engineering, architecture, project management and environmental consulting to FEMA and other government agencies in order to help…” Source: RevenueBase Database · checked Sep 16, 2026
20	R.W. Harden & Associates, INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1-10	11 contacts →
	Indirect evidence “R.W.” Source: RevenueBase Database · checked Sep 16, 2026
21	ACI Environmental Consulting	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	11 contacts →
	Partial evidence “aci environmental consulting is an environmental consulting firm with offices in Austin, Texas (Headquarters) and Denver, Colorado.” Source: RevenueBase Database · checked Sep 16, 2026
22	Pickett Kelm And Associates INC	Indirect evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1-10	7 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
23	Garzaemc	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	51-200	5 contacts →
	Partial evidence “GarzaEMC is a Civil Engineering, Design, Management, and Consulting Firm.” Source: RevenueBase Database · checked Sep 16, 2026
24	Gonzalez Shah Smith, INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “We are an engineering consulting firm that provides professional engineering services in sustainable design, master planning, construction management and commissioning of…” Source: RevenueBase Database · checked Sep 16, 2026
25	Harutunian Engineering, INC	Partial evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	11-50	5 contacts →
	Partial evidence “Harutunian Engineering, Inc.(HEI) is a professional Engineering Consulting firm headquartered in Austin, Texas.” Source: RevenueBase Database · checked Sep 16, 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 engineering 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 engineering firms.
Partial evidence: Its own public description names part of environmental engineering firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental engineering 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 25 of 73 environmental engineering firms based in Austin, United States

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Environmental engineering firms based in Austin, United States at a glance

As of Sep 16, 2026

44.3%Verified-email coverage

16.6Average contacts per company

11-50Median size (employees)

189.0%Largest-city concentration · Houston

Sep 16, 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 Austin, so it is reported there. Company counts and contact totals on this page are exact for Austin, over 73 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 engineering 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 Austin, United States whose own description of what they do matches “environmental engineering 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 engineering 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 engineering firms, and records with no verified work email. Companies headquartered outside Austin 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, 537 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 16, 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 engineering 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 engineering 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 engineering firms are there based in Austin, United States?

RevenueBase identified 73 environmental engineering firms headquartered in Austin, 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?

Intera Incorporated, headquartered in Austin, tops this list with the largest team on record.

Which city has the most environmental engineering firms?

Houston leads with 138 headquartered companies, followed by New York (101) and Austin (73).

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 537 verified decision-maker contacts tracked across these 73 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 16, 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.