/Investor DB

E8 Angels — 2018 Investments

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

Ecellixecellix.comin𝕏Nov 2018

Ecellix develops anode material for lithium-ion batteries that significantly increases capacity compared to traditional graphite, targeting battery manufacturers.

CleantechEnergyNew MaterialsSnoqualmie, US

Jerry Schwartz(Founder)inJason William Schwartz(Director)John J Anderson(Director)

Co-investorsaVentureKeiretsu Forum

Perpetuaperpetua.ioin𝕏Oct 2018

Perpetua provides AI-powered advertising optimization tools for online sellers on Amazon Marketplaces, enabling predictable growth through automated ad management and targeting.

AdTechAI & Machine LearningE-commerceRetail TechSaaSPortsmouth, US

MATT GERBER(Director)TIMOTHY S LUCAS(Executive Officer, Director)

Co-investorsConversion CapitalNycaNyca PartnersPaulson & Co.

Solsticesolstice.usin𝕏Dec 2018acquired by Perch Energy · Feb 2026

Solstice connects households and businesses to local solar farms through a software platform that qualifies subscribers based on energy needs rather than credit scores, enabling bill savings through solar credits.

CleantechClimate TechEnergySaaSBoston, US

Sandhya Murali(Co-Founder & CEO)inSteph Speirs(Co-founder)inKirk Arnold(Director)

BoardSchuyler Lance(Director)

Co-investorsAmerican Family Insurance Institute for Corporate and Social ImpactDorm RoomSE VenturesSustainVCTechstarsTrue Wealth Ventures+6 more

Symbiumsymbium.cominNov 2018

Symbium builds an instant permitting service for residential decarbonization projects such as solar panels, energy storage, and heat pumps, letting homeowners and contractors understand what is possible on a property and submit and manage permit applications.

Climate TechGovTechPropTechSaaSSan Francisco, US

Abhijeet Mohapatra(Founder)inLeila Banijamali(Founder)inMichael Genesereth(Founder)in

BoardMitchell Kertzman(Director)

Co-investorsAspenwoodBBG VenturesHearstLabHummer Winblad Venture Partners (HWVP)Third Derivative

Other

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

Scope 5

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.