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), Software Spectrum (acquired by Level 3 Communications),Tiny Prints (acquired by Shutterfly), Wildfire Interactive (acquired by Google), AdvaCare (acquired by Medaphis Corporation), Diagnostic Hybrids (acquired by Quidel Corporation), and The Mutual Fund Store (acquired by Warburg Pincus).
Harrison holds an AB in religion, cum laude, from Princeton University and an MBA from Stanford Business School. He serves numerous nonprofit organizations in an advisory or board capacity, including Common Sense Media, Opportunity Fund and Worldreader.org.