Company lists · Data refreshed September 2026

Top 22 Infrastructure consulting firms based in Pittsburgh, United States

RevenueBase identified 41 infrastructure consulting firms headquartered in Pittsburgh, United States as of September 2026 and tracks 5,009 professional contacts across them, including 3,174 with verified work emails. New York is the largest hub.

This list covers infrastructure consulting firms headquartered in Pittsburgh, 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
41Companies
5,009Contacts tracked
3,174Verified emails
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The 22 largest infrastructure consulting firms based in Pittsburgh, United States

Ranked by team size
Top 22 of 41 infrastructure consulting firms based in Pittsburgh, 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
1Pittsburgh, PA, United StatesHQ checked Sep 3, 20265,001-10,0004,316

“Michael Baker International is a leading provider of engineering, consulting and technology services spanning four Verticals: Infrastructure, Integrated Design and Advisory (IDA)…”

Source: company website · checked Sep 3, 2026
2
LLI EngineeringPartial evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5053

“Founded in 1910 in Pittsburgh, Pennsylvania, LLI Engineering a veteran owned small business, specializes in commercial, critical facilities, infrastructure upgrades, Green…”

Source: company website · checked Sep 3, 2026
3
A&a Consultants, INCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5039

“About A&A Consultants A&A provides comprehensive engineering services to private firms, governmental agencies and large corporations.”

Source: company website · checked Sep 3, 2026
4
KLH Engineers, INCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202651-20037

“Since 1982, KLH Engineers, Inc.”

Source: company website · checked Sep 3, 2026
5
D'appolonia EngineeringPartial evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5031

“Founded in 1956, D'APPOLONIA has grown to be an industry leader in providing consulting engineering services.”

Source: company website · checked Sep 3, 2026
6
RIG Consulting, INCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202651-20028
Source: company website · checked Sep 3, 2026
7
E. Holdings, INCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5019

“E.”

Source: company website · checked Sep 3, 2026
8Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5018

“Since 1987, DAI has been at the forefront of valuation and risk management consulting, specializing in the power and energy infrastructure sectors.”

Source: company website · checked Sep 3, 2026
9
R3a ArchitectureIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5018

“At R3A our Vision is to become the catalyst that stimulates progressive change within our clients’ organizations.”

Source: company website · checked Sep 3, 2026
10Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5017

“Trans Associates is a consulting firm specializing in transportation engineering services for a wide range of public and private clients.”

Source: company website · checked Sep 3, 2026
11
Strategic Solutions LLCPartial evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5015

“Since 2009, Strategic Solutions, LLC has provided professional consulting services to public- and private-sector clients.”

Source: company website · checked Sep 3, 2026
12
Wooster And AssociatesIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-5014

“Wooster has been at the forefront of the traffic engineering industry in the tri-state area for more than 50 years.”

Source: company website · checked Sep 3, 2026
13
BIG Pine Consultants LLCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-108

“We take on big challenges to accomplish big things!”

Source: company website · checked Sep 3, 2026
14
Sheesley AssociatesIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-107

“Sheesley + Associates, a Certified WBE and a Registered PA DOT Business Partner, is a professional services firm specializing in engineering, environmental, and aviation.”

Source: company website · checked Sep 3, 2026
15Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-507

“World-Class Industrial Network, LLC (WIN) is a project development and management-consulting firm staffed by experienced professionals that share a commitment to look beyond…”

Source: company website · checked Sep 3, 2026
16
BitfulIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 202611-506

“At Bitful, we specialize in cloud and data strategy, architecture, and deployment solutions.”

Source: company website · checked Sep 3, 2026
17
Brace Engineering, INCIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-103

“Brace Engineering, Inc, incorporated in 1979, is a firm that specializes in all areas of commercial structural analysis and design.”

Source: company website · checked Sep 3, 2026
18
Moshier StudioIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-102

“Moshier Studio is an Architecture and Planning company located at 1501 Reedsdale Street, in Pittsburgh's Chateau neighborhood”

Source: company website · checked Sep 3, 2026
19
The Ehrlichman GroupPartial evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-101

“The Ehrlichman Group is a consulting firm in Pittsburgh, PA, that brings government, industry & citizens together to form strategic alliances and devise plans of action.”

Source: company website · checked Sep 3, 2026
20Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-101

“At Resilient Future Consulting, our mission is simple yet ambitious: to help communities and organizations around the world adapt, thrive, and succeed.”

Source: company website · checked Sep 3, 2026
21
Media ToyboxIndirect evidence
Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-101

“An independent consultancy serving primarily media and technology clients.”

Source: company website · checked Sep 3, 2026
22Pittsburgh, PA, United StatesHQ checked Sep 3, 20261-101

“Steven Baumgartner founded Baumgartner Urban Systems Strategy LLC (BUSS) after two decades with global integrated design, engineering, planning and architecture firms.”

Source: company website · checked Sep 3, 2026

Showing 22 of 41 infrastructure consulting firms based in Pittsburgh, United States

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

As of Sep 3, 2026
11-50Median size (employees)
New YorkLargest hub · 306 HQs
Contacts with mobile numbers
Sep 3, 2026Data refreshed

Companies by employee count

1-10
17
11-50
17
51-200
6
5,001-10,000
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 Pittsburgh, over 41 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 Pittsburgh, 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 Pittsburgh 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, 3,174 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 Pittsburgh, United States?

RevenueBase identified 41 infrastructure consulting firms headquartered in Pittsburgh, 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?

Michael Baker International, headquartered in Pittsburgh, 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 3,174 verified decision-maker contacts tracked across these 41 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.