A Life Sciences Startup Will Base its Headquarters in Both Seattle and California. It’s Far From the Only One.

Sonoma Biotherapeutics, a life sciences company developing treatments for autoimmune diseases, announced this week it raised $265M to grow its operations in Seattle and the San Francisco Bay Area.

Sonoma is one of many life science companies building operations in multiple cities. Last year, Sonoma signed a lease for an 11,000-square-foot lab facility in Seattle. The company’s founders and employees are split between Washington and California.

The trend of splitting research and operations between cities has become “relatively commonplace,” according to Leslie Alexandre, president and CEO of Life Science Washington.