Company lists · Data refreshed September 2026

Top 25 Civil engineering consultancy firms based in Pittsburgh, United States

RevenueBase identified 58 civil engineering consultancy firms headquartered in Pittsburgh, United States as of September 2026 and tracks 5,979 professional contacts across them, including 3,677 with verified work emails. Across the United States, New York is the largest hub for this category (311 companies); Pittsburgh has 58.

This list covers civil engineering consultancy 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 23, 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 23, 2026 86% judged on-target in blind review
58Companies
5,979Contacts tracked
3,677Verified emails
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The 25 largest civil engineering consultancy firms based in Pittsburgh, United States

Ranked by team size
Top 25 of 58 civil engineering consultancy firms based in Pittsburgh, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering consultancy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 20265,001-10,0004,362 contacts →

Partial evidence

“Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…”

Source: RevenueBase Database · checked Sep 23, 2026
2Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-200233 contacts →

Indirect evidence

“SAI launched our public works service with assignments for highway and bridge design and bridge inspection in 1964.”

Source: RevenueBase Database · checked Sep 23, 2026
3Strong evidencePittsburgh, PA, United StatesHQ checked Sep 23, 2026201-500201 contacts →

Strong evidence

“Gateway Engineers is a full-service civil engineering firm headquartered in Pittsburgh, PA.”

Source: RevenueBase Database · checked Sep 23, 2026
4Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-200165 contacts →

Partial evidence

“RIZZO International, Inc.(RIZZO) is a global engineering and consulting firm headquartered in Pittsburgh, Pennsylvania US.”

Source: RevenueBase Database · checked Sep 23, 2026
5Strong evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20078 contacts →

Strong evidence

“Keystone Consultants, a CLS Company, is a highly responsive, cost effective, civil engineering, surveying, and environmental consulting firm with 30+ years of experience serving…”

Source: RevenueBase Database · checked Sep 23, 2026
6Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20069 contacts →

Partial evidence

“CV Engineering, based in Pittsburgh, PA, USA, with a full fledged subsidiary, CV Designers India Pvt.”

Source: RevenueBase Database · checked Sep 23, 2026
7Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20060 contacts →

Partial evidence

“Founded in 1960 by Italo (Ody) Mackin, Mackin Engineers & Consultants has proudly served clients across Pennsylvania and the surrounding Tri-State area for more than 65 years.”

Source: RevenueBase Database · checked Sep 23, 2026
8Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5054 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
9Strong evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20053 contacts →

Strong evidence

“Monaloh Basin Engineers (MBE) is a Woman Owned Business Enterprise (WBE) practicing in the civil engineering field.”

Source: RevenueBase Database · checked Sep 23, 2026
10Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20046 contacts →

Indirect evidence

“R.T.”

Source: RevenueBase Database · checked Sep 23, 2026
11Strong evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5039 contacts →

Strong evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
12Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20037 contacts →

Indirect evidence

“Since 1982, KLH Engineers, Inc.”

Source: RevenueBase Database · checked Sep 23, 2026
13Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5037 contacts →

Partial evidence

“COMPANY DESCRIPTION Sci-Tek Consultants, Inc.”

Source: RevenueBase Database · checked Sep 23, 2026
14Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5032 contacts →

Partial evidence

“Structural engineering involves more than just sizing beams and columns.”

Source: RevenueBase Database · checked Sep 23, 2026
15Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5032 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
16Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20027 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
17Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5023 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
18Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 23, 2026
19Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

“E.”

Source: RevenueBase Database · checked Sep 23, 2026
20Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5018 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
21Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5017 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026
22Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5017 contacts →

Indirect evidence

“WTW Architects is now AE Works.”

Source: RevenueBase Database · checked Sep 23, 2026
23Strong evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5015 contacts →

Strong evidence

“Collective Efforts, LLC is a women-owned, civil and environmental engineering consulting firm.”

Source: RevenueBase Database · checked Sep 23, 2026
24Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202651-20015 contacts →

Indirect evidence

“Welcome to MICHAEL FACCHIANO CONTRACTING, INC.”

Source: RevenueBase Database · checked Sep 23, 2026
25Partial evidencePittsburgh, PA, United StatesHQ checked Sep 23, 202611-5014 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 23, 2026

Showing 25 of 58 civil engineering consultancy firms based in Pittsburgh, United States

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Civil engineering consultancy firms based in Pittsburgh, United States at a glance

As of Sep 23, 2026
61.5%Verified-email coverage
103.1Average contacts per company
11-50Median size (employees)
Sep 23, 2026Page data refreshed

Companies by employee count

1-10
14
11-50
26
51-200
15
201-500
1
5,001-10,000
2

Email recency for this list is measured across the whole United States list rather than for Pittsburgh, so it is reported there. Company counts and contact totals on this page are exact for Pittsburgh, over 58 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 civil engineering consultancy 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 Pittsburgh, United States whose own description of what they do matches “civil engineering consultancy 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 civil engineering consultancy 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 civil engineering consultancy 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 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, 3,677 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 23, 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.

Civil engineering consultancy 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 civil engineering consultancy 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 civil engineering consultancy firms are there based in Pittsburgh, United States?

RevenueBase identified 58 civil engineering consultancy 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 in the United States has the most civil engineering consultancy firms?

New York leads the United States with 311 headquartered companies, followed by Houston (292) and Austin (151). Pittsburgh has 58.

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 3,677 verified decision-maker contacts tracked across these 58 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 23, 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.