Every fact below carries a source link and an as-of date. Informational only. Ownership statements are limited to primary announcements and filings.
- Headquarters
- GZA’s corporate headquarters is in Norwood, MassachusettsSource: gza.com/office-locations · As of 2026-10-11
- Founded
- 1964Source: gza.com/company-history · As of 2026-10-11
- Ownership type
- Employee-owned (ESOP), as described on the firm's own websiteSource: gza.com · As of 2026-10-11
- Employees
- More than 800 staff, per the firm’s siteSource: gza.com/company-history · As of 2026-10-11
Legal name, DBA and former names
- The firm’s legal name is GZA GeoEnvironmental, Inc.Source: gza.com/company-history · As of 2026-10-11
Offices
- GZA has 34 offices in the United States.Source: gza.com/company-history · As of 2026-10-11
Ownership type
- Employee-owned (ESOP), as described on the firm's own website.Source: gza.com · As of 2026-10-11
Employee count or band
- More than 800 staff, per the firm’s site.Source: gza.com/company-history · As of 2026-10-11
Services and markets
- GZA provides geotechnical, environmental, ecological, water, and construction management services to agriculture, buildings and real estate, development, energy, government, industrial, institutional, legal, transportation and infrastructure, and water markets.Source: gza.com · As of 2026-10-11
Leaders
- Patrick Sheehan, President/CEO.Source: gza.com/leadership · As of 2026-10-11
- John Murphy, Chief Operating Officer.Source: gza.com/leadership · As of 2026-10-11
- Angela Cincotta, Chief Marketing and Communications Officer.Source: gza.com/leadership · As of 2026-10-11
- Richard Ecord, Chief Administrative Officer.Source: gza.com/leadership · As of 2026-10-11
Rankings and awards
- Listed in the ENR 2026 Top 500 Design Firms.Source: enr.com/toplists/2026-top-500-design-fi… · As of 2026-10-05
Sources of record
Ownership tag: Employee-owned (ESOP). Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.
