Every fact below links to its source. Informational only. Ownership statements are limited to primary announcements and filings.
- Headquarters
- New York, New YorkSource: hazenandsawyer.com/locations
- Employees
- 2,400+ employees, per the firm's About pageSource: hazenandsawyer.com/about
- Website
- hazenandsawyer.comSource: hazenandsawyer.com/about
- Ownership type
- Ownership not published
Legal name, DBA and former names
- Hazen and Sawyer (Hazen and Sawyer, D.P.C. appears in federal recipient records)Source: hazenandsawyer.com/about
Identifiers (UEI, state registrations)
- Texas TBPELS firm no. 13618.Source: tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip
Offices
- 100+ offices nationwide, per the firm's About page.Source: hazenandsawyer.com/about
Ownership type
- Ownership not published.Source: hazenandsawyer.com/about
Sponsor, parent or transaction
- Ownership not published on the firm About, Legacy, Locations or news pages searched on 2026-10-06; DOL Form 5500 2024 file shows a welfare benefit plan under Hazen and Sawyer but no ESOP-named plan.Source: hazenandsawyer.com/about
Employee count or band
- 2,400+ employees, per the firm's About page.Source: hazenandsawyer.com/about
Services and markets
- Water supply and water quality engineering and related water infrastructure consulting.Source: hazenandsawyer.com/about
Leaders
- Alan Stone, PE, Firm President (named Firm President in 2024)Source: hazenandsawyer.com/people/alan-stone-pe
- Alan Stone, PE assumed the role of President per firm news.Source: hazenandsawyer.com/news/alan-stone-to-assume-role-…
Licences (board records)
- Texas TBPELS roster lists Hazen and Sawyer, P.C. DBA Hazen and Sawyer (firm no. 13618, type NS, expires 2028-07-31)Source: tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip
Public filings
- DOL Form 5500 plan year beginning 2024: HAZEN AND SAWYER WELFARE BENEFIT PLAN (ACK_ID 20250717123815NAL0000291841001, 1881 active participants), NAICS 541330.Source: dol.gov/agencies/ebsa/about-ebsa/our-ac…
Rankings and awards
- Listed in the ENR 2026 Top 500 Design Firms.Source: enr.com/toplists/2026-top-500-design-fi…
Sources of record
- https://www.hazenandsawyer.com/about
- https://tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip
- https://www.hazenandsawyer.com/locations
- https://www.hazenandsawyer.com/people/alan-stone-pe
- https://www.hazenandsawyer.com/news/alan-stone-to-assume-role-of-president-of-hazen-and-sawyer
- https://www.dol.gov/agencies/ebsa/about-ebsa/our-activities/public-disclosure/foia/form-5500-datasets
- https://www.enr.com/toplists/2026-top-500-design-firms-1
Ownership tag: Ownership not published. Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.
