Company lists · Data refreshed September 2026

Top 25 Civil engineering companies based in Pittsburgh, United States

Find 38 civil engineering companies based in Pittsburgh, United States, with 5,672 business contacts and 3,531 email addresses, as of September 2026. The companies provide services for infrastructure, land development, transportation, water systems, and related construction projects. Houston is the single most-represented city among the companies listed.

Civil engineering companies plan, design, manage, and oversee infrastructure and land development projects, including transportation systems, utilities, water resources, and structural site work. This list covers companies that provide civil engineering, infrastructure planning, site development, surveying, project management, or related engineering services. Ranked by team size, largest first. Data current as of September 6, 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 6, 2026 86% judged on-target in blind review
38Companies
5,672Contacts tracked
3,531Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest civil engineering companies based in Pittsburgh, United States

Ranked by team size
Top 25 of 38 civil engineering companies based in Pittsburgh, United States, ranked by team size, largest first. Data refreshed Sep 6, 2026. RevenueBase Smart Search rates how each company's information relates to civil engineering companies: 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 6, 20265,001-10,0004,362 contacts →

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

Source: company website · checked Sep 6, 2026
2Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-200233 contacts →

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

Source: company website · checked Sep 6, 2026
3Strong evidencePittsburgh, PA, United StatesHQ checked Sep 6, 2026201-500201 contacts →

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

Source: company website · checked Sep 6, 2026
4Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-200165 contacts →

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

Source: company website · checked Sep 6, 2026
5Strong evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-20078 contacts →

“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: company website · checked Sep 6, 2026
6Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5054 contacts →

“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 6, 2026
7Strong evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-20053 contacts →

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

Source: company website · checked Sep 6, 2026
8Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5039 contacts →

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

Source: company website · checked Sep 6, 2026
9Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-20037 contacts →

“Since 1982, KLH Engineers, Inc.”

Source: company website · checked Sep 6, 2026
10Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5037 contacts →

“COMPANY DESCRIPTION Sci-Tek Consultants, Inc.”

Source: company website · checked Sep 6, 2026
11Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5032 contacts →

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

Source: company website · checked Sep 6, 2026
12Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-20027 contacts →
Source: company website · checked Sep 6, 2026
13Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5023 contacts →
Source: company website · checked Sep 6, 2026
14Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5018 contacts →

“E.”

Source: company website · checked Sep 6, 2026
15Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5017 contacts →

“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 6, 2026
16Strong evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5015 contacts →

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

Source: company website · checked Sep 6, 2026
17Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202651-20015 contacts →

“Welcome to MICHAEL FACCHIANO CONTRACTING, INC.”

Source: company website · checked Sep 6, 2026
18Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-5014 contacts →

“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 6, 2026
19Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 20261-1010 contacts →
Source: company website · checked Sep 6, 2026
20Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-507 contacts →

“KSS Provides the following Structural Engineering Services-Design (New Buildings, Additions, and Renovations)-Analysis (New and Existing Structures)-Forensic Investigation…”

Source: company website · checked Sep 6, 2026
21Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 20261-107 contacts →

“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 6, 2026
22Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-507 contacts →

“Ackenheil Engineers, Inc.”

Source: company website · checked Sep 6, 2026
23Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 202611-507 contacts →
Source: company website · checked Sep 6, 2026
24Indirect evidencePittsburgh, PA, United StatesHQ checked Sep 6, 20261-101 contacts →
Source: company website · checked Sep 6, 2026
25Partial evidencePittsburgh, PA, United StatesHQ checked Sep 6, 20261-101 contacts →

“Locally Owned, Managed and Operated Structural Engineering Firm Serving Pittsburgh and its Surrounding Areas.”

Source: company website · checked Sep 6, 2026

Showing 25 of 38 civil engineering companies based in Pittsburgh, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,531 reachable decision-makers.

Free signup · no credit card

View the full list →

Civil engineering companies based in Pittsburgh, United States at a glance

As of Sep 6, 2026
62.3%Verified-email coverage
149.3Average contacts per company
11-50Median size (employees)
581.6%Largest-city concentration · Houston
Sep 6, 2026Page data refreshed

Companies by employee count

1-10
6
11-50
18
51-200
11
201-500
1
5,001-10,000
2

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 38 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 companies, 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 companies”. 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 companies), 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 companies, 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, 3,531 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 6, 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 companies by metro in the United States

Frequently asked

What do civil engineering companies do?

Civil engineering companies plan, design, and oversee infrastructure and land development projects, including roads, bridges, utilities, water systems, and site work.

How many civil engineering companies are based in Pittsburgh, United States?

The list contains 38 civil engineering companies based in Pittsburgh, United States.

Which city has the most civil engineering companies?

Houston is the single most-represented city among the companies on this list.

Ready to reach these companies? Verified emails and direct dials for all 38 civil engineering companies based in Pittsburgh, United States. Start with a free account, no credit card.

Download this list →

Related lists

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.