Browse 402,476 architecture & engineering firms in United States — registry-sourced from SEC EDGAR, scoped to NACE 71. Each record carries up to up to 500 firmographic attributes — from Registration number and registered address to revenue, headcount and corporate group structure. The largest by revenue are Infrastructure and Energy Alternatives, Inc. ($2.1B), Balfour Beatty LLC ($2.1B) and Parsons Brinckerhoff Holdings Inc. ($1.9B).
Top companies
The largest architecture & engineering firms in United States by revenue are Infrastructure and Energy Alternatives, Inc. ($2.1B), Balfour Beatty LLC ($2.1B) and Parsons Brinckerhoff Holdings Inc. ($1.9B). The directory below ranks them — sort any column, or filter by sub-sector, company size and region.
Last updated June 2026.
Every US architecture & engineering firms record with all attributes, by API, bulk export or CRM enrichment.
Showing 25 of 402,476 US architecture & engineering firms· click a column to sort, or a company for its full record
| Engineering activities and related technical consultancy | 2,650 | $2.1B | |
| Architectural activities | 2,495 | $2.1B | |
| Engineering activities and related technical consultancy | 7,539 | $1.9B | |
| Technical testing and analysis | 4,000 | $1.2B | |
| Technical testing and analysis | 6,566 | $1.1B | |
| Engineering activities and related technical consultancy | 3 | $954M | |
| Engineering activities and related technical consultancy | 16,900 | $801M | |
| Engineering activities and related technical consultancy | 2,600 | $723M | |
| Technical testing and analysis | 158 | $663M | |
| Engineering activities and related technical consultancy | 635 | $647M | |
| Engineering activities and related technical consultancy | 23,000 | $628M | |
| Engineering activities and related technical consultancy | 1,210 | $599M | |
| Engineering activities and related technical consultancy | 1,403 | $557M | |
| Engineering activities and related technical consultancy | 882 | $539M | |
| Engineering activities and related technical consultancy | 3,169 | $516M | |
| Engineering activities and related technical consultancy | 20,000 | $511M | |
| Engineering activities and related technical consultancy | 5,500 | $507M | |
| Engineering activities and related technical consultancy | 5 | $500M | |
| Engineering activities and related technical consultancy | 2,620 | $498M | |
| Engineering activities and related technical consultancy | 3,165 | $490M | |
| Engineering activities and related technical consultancy | 300 | $488M | |
| Engineering activities and related technical consultancy | 880 | $479M | |
| Engineering activities and related technical consultancy | 3,579 | $478M | |
| Engineering activities and related technical consultancy | 2,500 | $475M | |
| Technical testing and analysis | 3,000 | $464M |
This is a sample. The full database holds 402,476 US architecture & engineering firms, each with every attribute in the dictionary below.
Database overview
Distributions across all 402,476 architecture & engineering firms in United States — registry-sourced from SEC EDGAR and refreshed daily.
These distributions are computed from the full US architecture & engineering firms database, not the sample above.
Data coverage
United States business database
Legal name, registered address, NACE sub-sector, legal form, founding year and website. Every record is keyed to its Registration number — the stable SEC EDGAR identifier that survives name changes and rebrands, making it the most reliable CRM deduplication key for United States data.
Each company is geocoded to GPS coordinates covering its registered seat and operating locations across United States, with a precision level on every point — useful for territory planning and proximity targeting.
Records carry the Registration number and, where applicable, the VAT registration number, with a flag for when the two coincide. These are the cleanest match keys for enriching lists and cross-referencing against the national tax authority and your CRM.
InfobelPRO resolves the corporate hierarchy — parent, subsidiaries and the size of the worldwide corporate family — so sales and compliance teams can see who controls an entity before engaging or onboarding it.
Annual revenue in local currency, EUR and USD, employee headcount and founding year, with multi-year history where filed. Figures are sourced from SEC EDGAR filings and carry an Actual-or-Modeled reliability flag.
Data dictionary
The full field catalogue behind each record. Contact data (email, phone, executives) is part of the licensed dataset but is never displayed on this page.
Source comparison
SEC EDGAR gives you legal registration data. InfobelPRO adds the commercial intelligence sales, marketing and compliance teams actually need.
| Attribute | SEC EDGARFree official registry | InfobelPRO |
|---|---|---|
| Registration number | Yes | Yes — on 99.9% of records |
| Legal name & registered address | Yes | Yes |
| Company status (HQ / branch) | Yes | Yes — daily sync |
| NACE sub-sector classification | Yes | Yes — up to 6 codes |
| Annual revenue (local / EUR / USD) | Filings only | Yes — multi-currency |
| Employee count | No | Yes |
| Decision-maker contacts | No | Yes — licensed |
| Geocoded coordinates | No | Yes |
| Corporate group structure | Filings only | Yes — full hierarchy |
| API access | No | Yes — REST API |
| Bulk export (CSV / JSON / Parquet) | No | Yes |
| Update frequency | Periodic (filings) | Daily sync |
FAQ
API access, bulk export or CRM enrichment — 402,476 records with up to up to 500 attributes each.
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Related directories
See all company directories in United States, explore the full United States business database In the US classification, related SIC codes include SIC 0781 — Landscape Counseling and Planning and SIC 7534 — Tire Retreading and Repair Shops., or see how United States fits into the wider Americas business database.
