Company lists · Data refreshed October 2026

Top 25 Mechanical engineering services based in the United States

Name: Mechanical engineering services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 3,460 companies tracked

RevenueBase identified 3,460 company matches for mechanical engineering services associated with the United States as of October 2026 and tracks 51,832 professional contacts across them, including 20,608 with verified work emails. Houston is the largest hub.

This list covers company matches for mechanical engineering services associated with the 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 October 18, 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 Oct 18, 2026 How this list was built

3,460Companies

51,832Contacts tracked

20,608Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest mechanical engineering services based in the United States

Ranked by team size

Top 25 of 3,460 company matches for mechanical engineering services based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 18, 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	Moldtek Technologies Limited	Exact match	Cumming, GA, United StatesHQ recorded Oct 18, 2026	501-1,000	1,078 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
2	DGS Technical Services INC	Exact match	Elgin, IL, United StatesHQ recorded Oct 18, 2026	1,001-5,000	985 contacts →
	Exact match “DGSTS, Inc.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
3	Coffman Engineers	Exact match	Seattle, WA, United StatesHQ recorded Oct 18, 2026	501-1,000	889 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
4	PAE	Exact match	Portland, OR, United StatesHQ recorded Oct 18, 2026	201-500	835 contacts →
	Exact match “PAE provides mechanical and electrical engineering design, technology system design, energy modeling and analysis, and more.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
5	DLB Associates	Exact match	Neptune, NJ, United StatesHQ recorded Oct 18, 2026	501-1,000	729 contacts →
	Exact match “DLB Associates, founded in 1980, is an MEP and technology consulting firm specializing in data centers and mission-critical facilities.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
6	Indovance INC	Exact match	Apex, NC, United StatesHQ recorded Oct 18, 2026	501-1,000	554 contacts →
	Exact match “Indovance is a global, multidisciplinary Engineering Services firm, backed by more than two decades of industry expertise in delivering high-quality CAD Drafting and Design…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
7	Thomas & Hutton	Exact match	Savannah, GA, United StatesHQ recorded Oct 18, 2026	501-1,000	515 contacts →
	Exact match “Our story began in 1946 with the collaboration of former US Army Corps of Engineers Officers, Hue Thomas and Joe Hutton, in their start-up engineering firm in Savannah, GA.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
8	RFA Engineering	Exact match	Eden Prairie, MN, United StatesHQ recorded Oct 18, 2026	201-500	476 contacts →
	Exact match “RFA serves 100's of clients ranging in size from Fortune 500 to entrepreneurial start-ups.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
9	Symetri USA	Exact match	Nashua, NH, United StatesHQ recorded Oct 18, 2026	501-1,000	404 contacts →
	Exact match “What do some of the world’s largest projects have in common?” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
10	Osborn Engineering	Exact match	Cleveland, OH, United StatesHQ recorded Oct 18, 2026	201-500	388 contacts →
	Exact match “Established over a century ago in 1892, Osborn is proud to be one of the nation’s oldest engineering firms, continuing a tradition of excellence through outstanding quality in…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
11	TRC Worldwide Engineering, INC	Exact match	Brentwood, IL, United StatesHQ recorded Oct 18, 2026	201-500	323 contacts →
	Exact match “Founded in 1989, TRC Worldwide Engineering, Inc.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
12	M&s Engineering	Exact match	Spring Branch, TX, United StatesHQ recorded Oct 18, 2026	201-500	318 contacts →
	Exact match “Full Service Firm M&S Engineering is a professional engineering services firm whose mission is to provide our clients with quality, efficient services at the greatest overall…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
13	Cosentini Associates	Exact match	Nyc, NY, United StatesHQ recorded Oct 18, 2026	201-500	318 contacts →
	Exact match “Cosentini has a 70+ year history of engineering many of the world’s most iconic buildings.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
14	I.C. Thomasson Associates, Inc., A Salas O'brien Company	Exact match	Nashville, TN, United StatesHQ recorded Oct 18, 2026	201-500	306 contacts →
	Exact match “I.C.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
15	Greenbrook Engineering Services	Exact match	Middlesex, NJ, United StatesHQ recorded Oct 18, 2026	201-500	300 contacts →
	Exact match “At Greenbrook Engineering Services, we combine deep engineering expertise and on-time project delivery to support engineers, fabricators, and structural design teams worldwide.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
16	Design Systems, INC	Exact match	Farmington Hills, MI, United StatesHQ recorded Oct 18, 2026	201-500	249 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
17	BSI Engineering	Exact match	Mason, OH, United StatesHQ recorded Oct 18, 2026	201-500	247 contacts →
	Exact match “BSI Engineering is a full-service engineering consulting firm dedicated to delivering innovative, efficient, and effective solutions across various industries.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
18	Larson Engineering	Exact match	White Bear Lake, MN, United StatesHQ recorded Oct 18, 2026	51-200	242 contacts →
	Exact match “Core Purpose: We use our passion for engineering to impact the world.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
19	CEC	Exact match	Oklahoma City, OK, United StatesHQ recorded Oct 18, 2026	201-500	239 contacts →
	Exact match “CEC® is a privately held, multi-discipline engineering firm serving Oklahoma and Texas.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
20	MTU Aero Engines North America	Exact match	Rocky Hill, CT, United StatesHQ recorded Oct 18, 2026	201-500	233 contacts →
	Exact match “Complete engineering services (design, analysis, project management, and aftermarket engineering) for the gas turbine industry.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
21	GHT	Exact match	Arlington, VA, United StatesHQ recorded Oct 18, 2026	51-200	221 contacts →
	Exact match “GHT provides innovative mechanical, electrical, and plumbing (MEP) engineering solutions for the built environment.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
22	Waldemar S. Nelson & Co., INC	Exact match	New Orleans, LA, United StatesHQ recorded Oct 18, 2026	201-500	220 contacts →
	Exact match “For over a half century our professional staff - in meeting technical, schedule, budget, and regulatory requirements - has successfully completed projects in the U.S.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
23	Barry Isett & Associates	Exact match	Allentown, PA, United StatesHQ recorded Oct 18, 2026	201-500	214 contacts →
	Exact match “As one of the Best Places to Work in Pennsylvania annually since 2019, Barry Isett & Associates (Isett) is a one-stop provider for engineering and consulting services, offering…” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
24	IDS Group, INC	Exact match	Irvine, CA, United StatesHQ recorded Oct 18, 2026	51-200	209 contacts →
	Exact match “IDS is an award-winning engineering and architectural firm offering multidisciplinary consulting services through our staff of 90 professionals.” Recorded in the RevenueBase company graph · Oct 18, 2026 · View company records in RevenueBase
25	Andrews Cooper	Exact match	Mcminnville, OR, United StatesHQ recorded Oct 18, 2026	51-200	207 contacts →
	Exact match “Partner with AC to Supercharge Your Technology Development Andrews Cooper is an engineering services firm in the Pacific Northwest specializing in highly complex technology…” Recorded in the RevenueBase company graph · Oct 18, 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 services”. 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 25 of 3,460 mechanical engineering services based in the United States

See the full list, filter by size, metro and specialty, and access 20,608 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Mechanical engineering services based in the United States at a glance

As of Oct 18, 2026

39.8%Verified-email coverage

15.0Average contacts per company

1-10Median size (employees)

2.3%Largest-city concentration · Houston

Oct 18, 2026Page data refreshed

Companies by employee count

1-10

1,902

11-50

1,163

51-200

314

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 3,460 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 the United States whose business descriptions match “mechanical engineering services” 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 20,608 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 October 18, 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 services by metro

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 services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many mechanical engineering services are there based in the United States?

RevenueBase identified 3,460 company matches for mechanical engineering services associated with the United States as of October 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?

Moldtek Technologies Limited tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most mechanical engineering services?

Houston leads with 80 company records, followed by New York (60) and San Diego (43).

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 20,608 professional contacts with verified work emails tracked across these 3,460 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 October 18, 2026.

Ready to reach these companies? Verified emails and direct dials for all 3,460 mechanical engineering services based in the United States. Start with a free account, no credit card.

Download this list →

Related lists

Mechanical engineering services by geography

Browse the directory

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.