Every fact below carries a source link and an as-of date. Informational only. Ownership statements are limited to primary announcements and filings.
- Headquarters
- San Francisco, CaliforniaSource: mazzetti.com/about-us · As of 2026-10-06
- Founded
- Over 60 years, per the firm's About pageSource: mazzetti.com/about-us · As of 2026-10-06
- Ownership type
- Employee-owned (ESOP): firm describes itself as an employee-owned Benefit Corporation; DOL Form 5500 lists Mazzetti, Inc. Employee Stock Ownership PlanSource: mazzetti.com/about-us · As of 2026-10-06
- Sponsor or parent
- Firm About page: employee-owned Benefit CorporationSource: mazzetti.com/about-us · As of 2026-10-06
- Website
- mazzetti.comSource: mazzetti.com · As of 2026-10-06
Legal name, DBA and former names
- Mazzetti, Inc.Source: mazzetti.com/about-us · As of 2026-10-06
Identifiers (UEI, state registrations)
- SAM UEI M42PETMX7FN6 (as shown on the USAspending recipient record) and Texas TBPELS firm no. 20608.Source: usaspending.gov/recipient/fb1d659f-8bcc-9880-e6… · As of 2026-10-06
Ownership type
- Employee-owned (ESOP): firm describes itself as an employee-owned Benefit Corporation; DOL Form 5500 lists Mazzetti, Inc. Employee Stock Ownership Plan.Source: mazzetti.com/about-us · As of 2026-10-06
Sponsor, parent or transaction
- Firm About page: employee-owned Benefit Corporation.Source: mazzetti.com/about-us · As of 2026-10-06
Services and markets
- MEP engineering and technology consulting for healthcare and life sciences, including planning, design and decarbonization.Source: mazzetti.com · As of 2026-10-06
Leaders
- Walt Vernon, Principal and CEO.Source: mazzetti.com/article/mazzetti-ceo-walt-verno… · As of 2026-10-06
Licences (board records)
- Texas TBPELS roster lists Mazzetti, Inc. (firm no. 20608, type NS, expires 2027-07-31)Source: tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip · As of 2026-10-04
Federal awards (contracts)
- USAspending recipient record MAZZETTI, INC. (San Francisco, CA), contract award obligations: FY2021 $0, FY2022 $0, FY2023 $0, FY2024 $0, FY2025 $0 (award types A to D; obligations as published, including modifications and negative adjustments)Source: usaspending.gov/recipient/fb1d659f-8bcc-9880-e6… · As of 2026-10-06
ESOP plan data (Form 5500)
- DOL Form 5500 plan year beginning 2024-01-01: MAZZETTI, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20260603185328NAL0000497664001), 205 active participants and total plan assets of $5,611,878 at year end.Source: dol.gov/agencies/ebsa/about-ebsa/our-ac… · As of 2026-06-03
Public filings
- DOL Form 5500 filings, plan year beginning 2024-01-01, NAICS 541330: MAZZETTI, INC. EMPLOYEE STOCK OWNERSHIP PLAN (ACK_ID 20260603185328NAL0000497664001, 205 active participants); MAZZETTI, INC. GROUP INSURANCE PLAN (ACK_ID 20250625174502NAL0011871280001, 209 active participants)Source: dol.gov/agencies/ebsa/about-ebsa/our-ac… · As of 2026-06-03
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
- https://www.mazzetti.com/about-us/
- https://www.usaspending.gov/recipient/fb1d659f-8bcc-9880-e6f1-551de959cb33-P/latest
- https://www.mazzetti.com/
- https://www.mazzetti.com/article/mazzetti-ceo-walt-vernon-named-leader-of-the-year-at-2026-green-power-leadership-awards/
- https://tbpedownloads.s3-us-west-2.amazonaws.com/roster_firm.zip
- 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-5
Ownership tag: Employee-owned (ESOP). Profiles are informational, compiled from public sources linked above. Firms may request corrections. A listing is not an endorsement.
