Company lists · Data refreshed November 2026

Top 22 Mechanical engineering contractors based in Pittsburgh, United States

Name: Mechanical engineering contractors based in Pittsburgh, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 51 companies tracked

RevenueBase identified 51 company matches for mechanical engineering contractors associated with Pittsburgh, United States as of November 2026 and tracks 6,350 professional contacts across them, including 3,772 with verified work emails. Across the United States, Houston is the largest hub for this category (416 companies); Pittsburgh has 51.

This list covers company matches for mechanical engineering contractors associated with Pittsburgh, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built

51Companies

6,350Contacts tracked

3,772Verified emails

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The 22 largest mechanical engineering contractors based in Pittsburgh, United States

Ranked by team size

Top 22 of 51 company matches for mechanical engineering contractors based in Pittsburgh, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Michael Baker International	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	4,504 contacts →
	Exact match “Michael Baker International is a leading provider of engineering, consulting, and technology services spanning four Verticals: Infrastructure, Places and Facilities, Federal and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Keystone Consultants, LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	51-200	89 contacts →
	Exact match “Keystone Consultants, a CLS Company, is a highly responsive, cost effective, civil engineering, surveying, and environmental consulting firm with 30+ years of experience serving…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	LLI Engineering	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	54 contacts →
	Exact match “Founded in 1910 in Pittsburgh, Pennsylvania, LLI Engineering a veteran owned small business, specializes in commercial, critical facilities, infrastructure upgrades, Green…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Vectre	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	51-200	49 contacts →
	Exact match “VECTRE is an innovative provider of value-added services to the construction industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	CV Engineering	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	51-200	46 contacts →
	Exact match “CV Engineering, based in Pittsburgh, PA, USA, with a full fledged subsidiary, CV Designers India Pvt.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Huckestein Mechanical, A Service Logic Company	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	51-200	40 contacts →
	Exact match “Huckestein is a mechanical and engineering contractor serving Western Pennsylvania, eastern Ohio and Northern West Virginia.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	A&a Consultants, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	40 contacts →
	Exact match “About A&A Consultants A&A provides comprehensive engineering services to private firms, governmental agencies and large corporations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	D'appolonia Engineering	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	35 contacts →
	Exact match “Founded in 1956, D'APPOLONIA has grown to be an industry leader in providing consulting engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	WL Port-Land Systems, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	31 contacts →
	Exact match “WL Port-Land is a 100% employee-owned company specializing in the storage, processing, & handling of bulk materials in all industries.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Claitman Engineering Associates, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	22 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	R3a Architecture	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	21 contacts →
	Exact match “At R3A our Vision is to become the catalyst that stimulates progressive change within our clients’ organizations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	WTW Architects	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	19 contacts →
	Exact match “WTW Architects is now AE Works.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Teamsds	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	17 contacts →
	Exact match “Team SDS is a project-based engineering consultancy that specializes in full stack embedded hardware, software and cloud systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Tower Engineering, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	16 contacts →
	Exact match “Providing the systems you need, the information you want, and the satisfaction you deserve.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Taylor Structural Engineers, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Iams Consulting LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	11-50	8 contacts →
	Exact match “Iams Consulting LLC provides high quality, innovative mechanical, electrical, plumbing and fire protection engineering services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Sheesley Associates	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	7 contacts →
	Exact match “Sheesley + Associates, a Certified WBE and a Registered PA DOT Business Partner, is a professional services firm specializing in engineering, environmental, and aviation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Garvin Boward Beitko Engineering, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Brace Engineering, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Brace Engineering, Inc, incorporated in 1979, is a firm that specializes in all areas of commercial structural analysis and design.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Muller Harper, INC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	3 contacts →
	Exact match “Muller Harper has been supporting municipal and industrial customers for over 60 years with product sales, new applications, engineered systems, and has the expertise needed to…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	WAY Architecture Design Partners, LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	2 contacts →
	Exact match “A full-service architecture and interior design consulting firm specializing in the corporate, developer, multi-family housing, institutional, retail, science and technology and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Pittsburgh Design & Engineering Services LLC	Exact match	Pittsburgh, PA, United StatesHQ recorded Nov 6, 2026	1-10	1 contacts →
	Exact match “Locally Owned, Managed and Operated Structural Engineering Firm Serving Pittsburgh and its Surrounding Areas.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “mechanical engineering contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 51 mechanical engineering contractors based in Pittsburgh, United States

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Mechanical engineering contractors based in Pittsburgh, United States at a glance

As of Nov 6, 2026

59.4%Verified-email coverage

124.5Average contacts per company

11-50Median size (employees)

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

5,001-10,000

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 51 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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: Company records associated with Pittsburgh, United States whose business descriptions match “mechanical engineering contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 3,772 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Mechanical engineering contractors by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “mechanical engineering contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical engineering contractors are there based in Pittsburgh, United States?

RevenueBase identified 51 company matches for mechanical engineering contractors associated with Pittsburgh, United States as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Michael Baker International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most mechanical engineering contractors?

Houston leads the United States with 416 company records, followed by New York (306) and Chicago (147). Pittsburgh has 51.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 3,772 professional contacts with verified work emails tracked across these 51 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.