About
Harrison B. Miller first joined Summit Partners in 1988. After then attending business school, he was part of the founding management team at Lightspan, an online education company that completed its initial public offering in 2000. At Amazon.com from 1998 to 2003, Harrison was the founding VP and GM of Platform Services, a $180 million unit of the company developing and deploying Amazon’s technology infrastructure as a managed service for major retailers and other customers. Harrison rejoined Summit in 2003. Based in Summit’s Menlo Park office, Harrison today co-heads the firm’s venture capital activities in North America, Europe and Asia, and focuses primarily on the technology and healthcare & life sciences sectors. Harrison's directorships and investments include Autobase (acquired by Dominion Enterprises), Clearwater Analytics, Cloudmark, Delphix, LiveOffice (acquired by Symantec Corporation), NetWitness Corporation (acquired by EMC Corporation), Postini (acquired by Google), S
Position in the VCSift Database
- • 51 investors at Summit Partners are tracked.
- • 1,801 investors hold the Senior Advisor, Former Managing Director role in VCSift. Harrison B. Miller is one of them.
- • 7,285 investors are based in San Francisco, California, United States.
Data sourced from 410,343 investor profiles. Updated July 2026.
Investment Focus
- Location
- San Francisco, US
Contact Information
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