Donor Network West, the third-largest federally designated organ procurement organization and one of the largest tissue recovery organizations in the nation, has signed a lease to move into an entire floor of Bishop Ranch 15 in San Ramon.

The organization, formerly known as California Transplant Donor Network, will occupy 41,039 square feet at the four-building Bishop Ranch 15 campus at 12667 Alcosta Blvd., according to representatives from Sunset Development Co., which owns and operates the business park.

"Relocating to San Ramon will enhance our ability to serve our clients more conveniently and effectively. Our new office features outstanding efficiencies, a beautiful landscape, access to an award-winning transportation program and many other amenities for our employees," Donor Network West CEO Cindy Siljestrom said in a statement last week.

The organization is set to relocate its operations from Oakland to San Ramon in June, according to Sunset officials. Financial terms of the lease were not disclosed.

Donor Network West's stated mission is "to save and improve lives through organ and tissue donation for transplantation." It serves 175 hospitals, five transplant centers, 44 coroner and medical examiner offices, and more than 500 funeral homes -- as well as the broader public -- in Northern California and Nevada.

"Donor Network West is the latest example of an innovative, industry-leading company choosing Bishop Ranch," said Alex Mehran Jr., president and COO of Sunset Development. "We focus every day on improving the quality of the environment for the 600 companies who are our customers."

Bishop Ranch 15 is located adjacent to the Iron Horse Regional Trail and provides free parking, a cafe, showers and lockers. Donor Network West will join corporate neighbors Bank of the West, 24 Hour Fitness, Paychex, FedEx, Sprint and accounting firm Armanino.