The United States Engineering Firms Directory.
Find engineering companies by discipline, state, size, and industry. Multidisciplinary AE firms, specialty consultancies, and ENR-ranked practices nationwide.
America's directory of engineering firms and companies.
EngineerMint's engineering firms directory indexes thousands of engineering companies — from solo P.E. practices to ENR Top 500 multidisciplinary firms — across every NCEES discipline and all 50 US states. Each firm profile lists licensed P.E. staff (with state-board deep links), office locations, industries served, and project portfolio.
Whether you're an owner sourcing an AE team, a developer scoping a feasibility study, GC qualifying subs, or counsel hiring expert engineering services — find the right firm by discipline, size, and geography.
Browse by state below, jump to a discipline-specific firms hub, or post a brief to the marketplace and receive vetted firm proposals.
Real licensed engineers, sourced from official boards
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Frequently asked questions
What is the engineering firms directory?+
A nationwide directory of engineering companies — multidisciplinary AE firms, specialty consultancies, MEP houses, structural firms, civil shops, and industry-leading ENR-ranked practices across all 50 states.
How do I find an engineering firm in the directory?+
Filter by discipline, state, firm size, and industry served. Verify firm credentials and licensed P.E. staff on each firm profile, then contact directly or post a project brief.
Is the engineering firms directory free?+
Yes. Browsing firm listings, viewing credentials, and reading reviews are all free. Posting projects and requesting proposals requires a free account.
What kinds of engineering companies are listed?+
Civil, structural, MEP, geotechnical, environmental, transportation, industrial, aerospace, software, and multidisciplinary AE firms — from boutique studios to ENR Top 500 practices.
How is firm information verified?+
Claimed firm profiles list their licensed P.E. staff with deep links to state-board records, plus office locations, disciplines, industries served, and recent project portfolio.
Can I post a project to receive firm proposals?+
Yes. Post a scoped brief to the marketplace and qualified firms will submit proposals. The AI Estimator can scope and size the engagement before you reach out.
Can engineering firms claim and edit their listing?+
Yes. Verified firms can claim their directory entry, manage their team roster, add project portfolios, certifications, and industry capabilities.
Are reviews available for engineering firms?+
Yes. Any logged-in user can post a verified review on a firm's profile, scoped to the project type and discipline.