Keystone was founded in 1994 with the goal of acquiring high quality, market-leading niche businesses; building them alongside management through organic growth and strategic acquisition. From 1994 to 2021, Keystone exclusively invested the personal capital of its partners employing a patient capita... Read more
Upfront Ventures
Santa Monica, United States
GSR Ventures
Palo Alto, United States
Spectrum Equity
San Francisco, United States
Scale Venture Partners
Foster City, United States
Foundation Capital
Palo Alto, United States
Ignition Partners
Bellevue, United States
DCM
Menlo Park, United States
Pantera Capital
Menlo Park, United States
Khosla Ventures
Menlo Park, United States
Spark Capital
San Francisco, United States
Emergence Capital
San Mateo, United States
Verizon Ventures
Basking Ridge, United States