Cornerstone Earth Group, Inc. performed Geotechnical Investigations for the planned campus expansion in Sunnyvale, California. The improvements for the site include a manufacturing and research and development facility with six, 3-story articulated fingers and a 1-level basement beneath most of the building footprint, a 3-story office building with 2 levels of below-grade parking, a 5-level, at-grade parking structure, and a 1-story amenities building on the approximately 25-acre site. Other improvements include a pedestrian bridge across Kifer Road to connect the North and South Buildings, paved driveways and parking areas, sidewalks, and landscape areas.