FiftySix Investments

Ray Rothrock makes all investment decisions. He sources deals, structures seed rounds, and personally coaches founders on their Series A narratives. The firm does not employ an investment committee beyond Rothrock himself.

Rothrock leverages a network built over three decades: his Venrock alumni connections, his directorships at Check Point Software Technologies and Roku, and his nuclear-energy advocacy work through organizations like the Nuclear Threat Initiative and Terra Praxis. Many founders reach him through the cybersecurity and advanced-reactor policy community rather than traditional venture channels.

FiftySix is best understood as a personal investment vehicle conducting direct seed-stage venture deals. Rothrock formed it in 2014 using his own capital, and there is no evidence of outside limited partners. It does not carry the regulatory reporting profile of a registered investment advisor.

The firm deploys at the seed stage exclusively. Rothrock's pattern is to enter early enough to influence company formation, then help the founding team refine their pitch and syndicate for a Series A round. He does not lead later-stage rounds nor participate in growth equity.

Rothrock actively syndicates. His biography notes he assists entrepreneurs with access to his extensive venture capital network, and his role as a venture partner at Shield Capital positions him to route follow-on capital to portfolio companies. He participates in LP advisory committees for other venture firms.

The disclosed activity shows exclusively direct seed investments. While Rothrock sits on LP advisory committees for other venture firms, FiftySix is not described as committing capital to external funds as a limited partner.

Rothrock's capital was generated during 25 years at Venrock, where he led 53 early-stage investments yielding eight IPOs — notably Check Point Software Technologies and CloudFlare — and from his subsequent role as CEO of RedSeal. He was twice named to the Forbes Midas List.