David E. Siminoff, David Siminoff

David E. Siminoff operates as an angel investor, managing his investment activities independently under the designation. See sector focus and contact routes.

About David E. Siminoff

David E. Siminoff operates as an angel investor, managing his investment activities independently under the designation of David Siminoff. His professional base is located in San Francisco, California, within the United States. Siminoff's investment profile is distinctly categorized as an Individual/Angel, reflecting his direct involvement in early-stage funding. This classification underscores his role as a private individual providing capital for startups, often leveraging personal wealth and expertise to support emerging ventures. The information regarding David E. Siminoff's investment activities and professional affiliation is current as of August 9, 2026, based on available database records.

David E. Siminoff at a glance

Role
Angel Investor
Organization
David Siminoff
Location
San Francisco, CA, United States
Investor type
Individual/Angel
Focus areas
Mr. David Siminoff is Co-Founder and Chief Creative Officer of Shmoop University. He serves as an Advisor at Formation 8. Prior to Shmoop, he was a Partner at Venrock from 2007-2009. Prior to Venrock, he served as Chairman, President and CEO of Spark Networks, a provider of on-line personal services and the parent company to JDate. He spent nearly a decade in investment research analysis and portfolio management at Capital Research, making early investments in Yahoo!, AOL, Amazon

Frequently asked about David E. Siminoff

What does David E. Siminoff invest in?
David E. Siminoff at David Siminoff (San Francisco, CA, United States) — sector focus: Mr. David Siminoff is Co-Founder and Chief Creative Officer of Shmoop University. He serves as an Advisor at Formation 8. Prior to Shmoop, he was a Partner at….
How do I contact David E. Siminoff?
David E. Siminoff's published profile links (website, LinkedIn or X where available) are listed on the StartupFundraising.com investor profile.
Where is David E. Siminoff based?
David E. Siminoff is based in San Francisco, CA, United States.

Details on this investor come from filing and round data held in the StartupFundraising directory, refreshed on ingest. Founders use profiles like this one to qualify fit and to shortlist investors in San Francisco.

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