About Us

With offices located in Silicon Valley and the Central Coast, Blach Construction is an established, mid-sized commercial builder and construction manager.  

Serving Northern California since 1970
Blach teams consistently exceed the high expectations of clients in a broad range of industries and construction types: education, corporate offices, medical facilities, historic preservation, high technology, and non-profits.

In addition to its performance in the field, Blach Construction is an award-winning business. Since 2009, a joint survey of the San Francisco Business Times and Silicon Valley Business Journal has recognized the company each year as one of the Best Places to Work in the Bay Area. In 2010, Blach earned the #1 ranking in the 101-500 employee size category.

In 2010 and 2011, The Associated General Contractors (AGC) of California rated Blach’s safety program as the #1 program in the State.  The company went on in 2011 to earn the #3 ranked safety program in the nation by the AGC of America. In 2012, Blach is returning to the national conference to vie for the top spot.

Blach’s commitment to the community is ingrained in its culture. Regularly named as among northern California’s most philanthropic companies by various groups, Blach donates thousands of dollars and hundreds of volunteer hours each year to charitable causes. Many Blach employees serve in leadership positions on the boards of directors of non-profit, civic and trade groups throughout the region.