# Kevin O'Riordan

> Kevin O'Riordan is President and CEO of Hathaway Dinwiddie Construction Company, the 117-year-old, employee-owned San Francisco general contractor behind a generation of California's most photographed buildings. He took the top job on April 1, 2025 after four decades in the trade and five years running the Northern California region. In the same window he was elected 2025 President of the Construction Employers' Association.

- **Role:** President & CEO at Hathaway Dinwiddie Construction Company
- **Organizations:** Hathaway Dinwiddie Construction Company, Construction Employers' Association (CEA)
- **Nationality:** American
- **Education:** Certificate in Construction Management, San Francisco State University
- **Known for:** Promoted to President & CEO of one of California's oldest general contractors (founded 1908), Led the Northern California region during a multi-year period of life sciences, corporate campus, and hospitality growth, Elected 2025 President of the Construction Employers' Association

## Career timeline

- **mid-1980s** — Begins career in the construction industry
- **2001-2011** — Senior Project Manager and Department Manager of Interiors and Renovations at Hathaway Dinwiddie
- **~2020** — Named Executive Vice President, overseeing Northern California region (SF + Silicon Valley) plus Seattle, Interiors, Hospitality, Renovation
- **2025-01-21** — Elected 2025 President of the Construction Employers' Association
- **2025-04-01** — Named President & CEO of Hathaway Dinwiddie, succeeding Greg Cosko (who becomes Executive Chairman)

## Achievements

- Promoted to President & CEO of one of California's oldest general contractors (founded 1908)
- Led the Northern California region during a multi-year period of life sciences, corporate campus, and hospitality growth
- Elected 2025 President of the Construction Employers' Association
- Helped scale Hathaway Dinwiddie's Interiors, Hospitality, and Renovation groups
- Played a key role in opening and growing the firm's Seattle presence

## Latest updates

- **2025-04** — Officially assumed role of President & CEO of Hathaway Dinwiddie, with Greg Cosko transitioning to Executive Chairman.
- **2025-01** — Elected 2025 President of the Construction Employers' Association at the Annual General Membership Dinner in Concord.

## Links

- Website: https://hathawaydinwiddie.com
- LinkedIn: https://www.linkedin.com/in/kevin-o-riordan/

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Profile page: https://yespress.io/kevin-o-riordan
Published by YesPress — https://yespress.io
Last updated: 2026-05-30