A subsidiary of Tutor Perini Corp. has won a construction management contract for a confidential research facility in California.

The Sylmar construction company did not disclose the name of the client. The subsidiary, Rudolph and Sletten in Redwood City, has experience building for the technology, biotech and industrial clients, as well as courthouses in California.

The project will include about 3 million square feet with a budget of $600 million. Construction has already started.

Tutor Perini announced the contract Wednesday.

Shares closed up 3 cents or a fraction of a percent at $23.90 on the New York Stock Exchange.