Company lists · Data refreshed September 2026

Top 19 Infrastructure consulting firms based in Austin, United States

RevenueBase identified 121 infrastructure consulting firms headquartered in Austin, United States as of September 2026 and tracks 2,828 professional contacts across them, including 1,132 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 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 3, 2026 86% judged on-target in blind review
121Companies
2,828Contacts tracked
1,132Verified emails
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The 19 largest infrastructure consulting firms based in Austin, United States

Ranked by team size
Top 19 of 121 infrastructure consulting firms based in Austin, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure 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.
#CompanyHeadquartersEmployeesContacts
1
Illumine-IIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 2026201-500276

“The world runs on power.”

Source: company website · checked Sep 3, 2026
2Austin, TX, United StatesHQ checked Sep 3, 202651-20089

“The Kleinfelder Group, Inc.(“Kleinfelder”), a leading engineering, design, construction management, construction materials inspection and testing, and environmental professional…”

Source: company website · checked Sep 3, 2026
3
Carlson, Brigance & DoeringIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202651-20073

“Carlson, Brigance & Doering, Inc.”

Source: company website · checked Sep 3, 2026
4Austin, TX, United StatesHQ checked Sep 3, 202611-5036

“Rodriguez Transportation Group (RTG) is a Texas-based engineering consulting firm specializing in complex transportation infrastructure projects that shape the future of mobility…”

Source: company website · checked Sep 3, 2026
5
Sequel Data SystemsIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5036

“Sequel Data Systems, Inc.”

Source: company website · checked Sep 3, 2026
6Austin, TX, United StatesHQ checked Sep 3, 202611-5033

“Civilitude was founded in 2010 with a simple idea: civil engineering in Austin could be smarter, faster, and more collaborative.”

Source: company website · checked Sep 3, 2026
7Austin, TX, United StatesHQ checked Sep 3, 202611-5030

“Making positive impacts through leadership, creativity, and innovation.”

Source: company website · checked Sep 3, 2026
8Austin, TX, United StatesHQ checked Sep 3, 202611-5030

“The mission of Energy Renewal Partners is to be a partner to our clients focused on delivering successful projects.”

Source: company website · checked Sep 3, 2026
9
Malone Wheeler, INCIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5025

“Malone/Wheeler, Inc.”

Source: company website · checked Sep 3, 2026
10
DCSStrong evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5023

“DCS is a full-service civil engineering consulting firm offering expertise focused on land development, water, and wastewater treatment facilities, municipal infrastructure, site…”

Source: company website · checked Sep 3, 2026
11
Mahoney EngineeringIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5021

“Mahoney Engineering is a full-service Civil Engineering firm that consults, designs, and manages land development projects.”

Source: company website · checked Sep 3, 2026
12
BOEPartial evidence
Austin, TX, United StatesHQ checked Sep 3, 20261-1019

“BOE provides traffic engineering, transportation planning, and development consulting that ensures your new development project positively impacts the surrounding communities.”

Source: company website · checked Sep 3, 2026
13Austin, TX, United StatesHQ checked Sep 3, 202611-5017

“In 2025, Murfee Engineering Company became Consor Engineers, strengthening the firm’s ability to deliver large-scale infrastructure solutions in Texas.”

Source: company website · checked Sep 3, 2026
14
AngeloueconomicsIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5016

“We are relentless experts who specialize in economic development and site location.”

Source: company website · checked Sep 3, 2026
15
512 CMG Consulting LLCStrong evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5015

“CMG is a Digital Infrastructure Consulting and Development Company that prioritizes digitalization, decentralization, and decarbonization.”

Source: company website · checked Sep 3, 2026
16
DCE ClarityIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5013

“DCE Clarity is a trusted growth partner for commercial builders generating $15M+ in annual revenue.”

Source: company website · checked Sep 3, 2026
17
Miller Gray LLCIndirect evidence
Austin, TX, United StatesHQ checked Sep 3, 202611-5011

“Miller Gray brings innovation and experience to civil engineering and design projects.”

Source: company website · checked Sep 3, 2026
18Austin, United StatesHQ checked Sep 3, 202611-5010

“Enterprise Engineering Solutions, Inc.(EES) is a top-ranked consultancy firm in the USA, providing industry-proven solutions to streamline IT environments.”

Source: company website · checked Sep 3, 2026
19Austin, TX, United StatesHQ checked Sep 3, 20261-109
Source: company website · checked Sep 3, 2026

Showing 19 of 121 infrastructure consulting firms based in Austin, United States

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Infrastructure consulting firms based in Austin, United States at a glance

As of Sep 3, 2026
1-10Median size (employees)
New YorkLargest hub · 306 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
67
11-50
35
51-200
14
201-500
3
501-1,000
1
1,001-5,000
1

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 Austin, over 121 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 infrastructure 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 Austin, United States whose own description of what they do matches “infrastructure 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 infrastructure consulting 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 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, 1,132 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 3, 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.

Infrastructure consulting firms by metro in the United States

Frequently asked

How many infrastructure consulting firms are there based in Austin, United States?

RevenueBase identified 121 infrastructure consulting 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?

Illumine-I, headquartered in Austin, tops this list with the largest team on record.

Which city has the most infrastructure consulting firms?

New York leads with 306 headquartered companies, followed by Houston (293) and Washington (158).

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 1,132 verified decision-maker contacts tracked across these 121 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 3, 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.