Fast Facts | Our History | Philosophy & Vision | Principals | Locations
Richard Tanaka is the Chairman of the Board. Mike Lohman serves as the firm's President. Principals include Rob Himes, Jim Sims, Sasha Dansky, and Leonard Sequeira
- Mark Thomas & Company is a privately held, employee-owned surveying and engineering corporation.
- We are California's leading transportation engineering firm, and a leading provider of land surveying, site development, infrastructure improvements and municipal engineering services.
- The company has been operating continuously since it was established by Mark Thomas in 1927.
- Corporate headquarters are in San Jose, California. We have branch offices in eight cities: Cupertino, Fresno, Irvine, Oakland, San Mateo, Sacramento, Salinas, and Walnut Creek.
- We employ nearly 200 surveying, engineering and administrative support staff.