/Investor DB

Clean Energy Venture — 2018 Investments

3 investments dated 2018 · listed companies and verified rows first · show all

IronNetironnet.comin𝕏Apr 2018SEC filingmedium confidence

IronNet provides network detection and response (NDR) services powered by behavioral analytics and crowdsourced threat intelligence for enterprise security teams.

AI & Machine LearningCybersecurityEnterprise SoftwareMaple Lawn, US

GEN (Ret) Keith Alexander(Founder)inMichael J. Rogers(Director)Donald R. Dixon(Director)William E. Welch(Executive Officer, Director)James C. Gerber(Executive Officer)Jan Tighe(Director)

Board seatJohn Keane· per SEC Form D · $175M raise · filed Feb 2022

Co-investorsKensington Capital Partners LimitedBallistic VenturesC5 CapitalForgePoint CybersecurityKleiner Perkins

Purposeenergypurposeenergy.comin𝕏Apr 2018

PurposeEnergy develops wastewater treatment and biogas solutions that convert organic waste from food and beverage producers into renewable fuels and electricity.

Circular EconomyCleantechEnergyUS-based, US

Eric Fitch(Founder & CEO)in

BoardJohn F. Keane(Director)inMichael C. Sununu(Director)Thomas Klein(Director)

Board seatJohn Keane· per SEC Form D

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Ravenbrick

Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.