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Architecture and engineering firms in the USA: 25,342 companies

Architecture and engineering firms in the USA that we could find with a working website: 25,342 companies, each with website, LinkedIn page, industry, size, city, state and founding year. 25,342 have a LinkedIn page and 2,046 have an exact headcount.

Preview 25 below. Put in your work email and you get 1,000 of them as a CSV, the most complete rows first.

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Preview: 25 of 25,342

CompanyWebsiteEmployeesLocationFounded
Degenkolb Engineersdegenkolb.com201-500San Francisco, California1940
Rockford Toolcraft Incrockfordtoolcraft.com201-500Rockford, Illinois1976
Sentry Equipment & Erectorssentryequipment.com201-500Forest, Virginia1980
Burkhalterburkhalter.net51-200Columbus, Mississippi1973
Fortified Structural Solutionsfortifiedstructuralsolutions.com51-200Panama City, Florida2022
Global Precision Industriesglobal-precision.com51-200Rochester, New York2004
Marco Rubber & Plasticsmarcorubber.com51-200Seabrook, New Hampshire1980
Melick-Tully & Associates, P.C.melick-tully.com51-200South Bound Brook, New Jersey1976
Ram Computersramcomputers.biz51-200Montgomery, Alabama
Spence Robinsonspencerobinson.com51-200Greensboro, North Carolina1904
Sps+ Architectsspsplusarchitects.com51-200Scottsdale, Arizona1960
The Hope Groupthehopegroup.com51-200Northborough, Massachusetts1933
Verse Buildingsversebuildings.com51-200Tallahassee, Florida
Wilkast Incwilkast.com51-200Grand Rapids, Michigan1979
Windrose Land Serviceswindroseservices.com51-200Houston, Texas1991
100 Fold Studio100foldstudio.org11-50Lakeside, Montana2010
Active Engineering Servicesactive-engineering-services.com11-50Norco, California2021
Alan Wanzenberg Architect PCalanwanzenberg.com11-50New York, New York
Altura Architectsalturaarchitects.com11-50Asheville, North Carolina1985
Architectural Restoration LLCrestorationmen.com11-50New Hartford, Connecticut
Auto Trendautotrends.in11-50Spokane Valley, Washington
Axiom Decision Systemsaxiomds.com11-50Ellicott City, Maryland
Baker Centriliftcentrilift.com11-50Tulsa, Oklahoma
Bienenfeld Architecturebienenfeld.com11-50New Rochelle, New York1978
Bondioli & Pavesi, Inc.bondioliandpavesi.com11-50Ashland, Virginia

LinkedIn URLs, industry, exact headcount and ownership are in the CSV. Get 1,000 rows free.

What's in the full list

SizeCompaniesShare
11-50 employees18,88375%
51-200 employees4,72719%
201-500 employees1,0324%
501-1000 employees3041%
1000+ employees3962%
Top locationsCompanies
California3,239
Texas2,121
New York1,816
Florida1,531
Illinois1,165
Pennsylvania1,116
Ohio975
Michigan806

Columns

  • company: Company name
  • website: Root domain, one row per website
  • linkedin_url: LinkedIn company page
  • industry: The company's own LinkedIn industry label
  • employee_range: Size band (11-50, 51-200 and so on)
  • employees: Exact headcount, where we have it
  • city, state, country: Headquarters location
  • founded: Year founded
  • ownership: Investor-backed, Private, Public or Acquired, where we have it

There are no people or emails in this file. One row per company, and every company sits in exactly one of our 24 lists.

How good is it?

A company lands here because its own LinkedIn industry label says so. Spot checks put that right 85 to 90% of the time. We dropped companies without a website, ones marked out of business, and duplicate websites and LinkedIn pages. It is a good first cut of a TAM, and it is not verified row by row.

The list stops at the company. Turning it into pipeline means finding the right people, verified emails, and a reason to reach out now. That is what I build. Want this list with the right people and verified emails? Talk to me, or price it yourself with the TAM calculator.

FAQ

Is this list really free?
Yes. Enter your first name, work email and company and you get 1,000 of the 25,342 companies as a CSV right away, plus a copy of the link by email. There is nothing to pay and no account to make.
Does the list include contacts or email addresses?
No. It is a company list: name, website, LinkedIn page, industry, size, location and founding year. If you want the right people at these companies with verified emails, that is the work OneGTM does, so reply to the email or book a call.
Where does the data come from?
Company records come from the People Data Labs Free Company Dataset (CC BY 4.0). Exact headcount and ownership come from a separate company database and are only attached when the name and size line up. We removed duplicates, dead companies and rows without a website.
How accurate is it?
A company is on this list because its own LinkedIn industry label says so. Spot checks put it right 85 to 90% of the time. Treat it as a strong starting point for your TAM, not a verified list.
Why do I need a work email?
The list goes to people building pipeline at a business, and we send a copy of the download link to the address you give. Personal inboxes like Gmail and throwaway addresses are not accepted.

Company data: People Data Labs Free Company Dataset, licensed CC BY 4.0. Filtered, deduplicated and recased by OneGTM. Lists built October 27, 2026.