Fundraising FoxUnderground Ventures — Full Portfolio
7 tracked investments · listed companies and verified rows first
Borobotics develops an autonomous bore-robot called "Grabowski" for drilling, aimed at accelerating the energy transition.
CleantechEnergyRobotics
Hans-Jörg Dennig(Co-founder)Philipp GanzinMoritz Pillin
Co-investorsKickfundEmissions Reduction AlbertaVenture Kick
Canopus develops directional steel shot drilling (DSSD) technology for constructing geothermal wells and borehole heat exchangers at shallow, deep, and ultra deep depths.
CleantechDeep TechEnergyDelft, NL
Jan Jette Blangé(Founder)in
Co-investorsSHIFT InvestSHIFT
Critical Energy is developing modular power plants to provide low-cost, dispatchable clean electricity around the clock.
CleantechClimate TechEnergyHardware
Spencer Jackson(Founder & CEO)in
Co-investorsHumba VenturesMaC Venture CapitalDangerous VenturesNosTerra Venture CapitalRitual CapitalScribble Ventures+1 more
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GA Drilling develops hard-rock drilling and geothermal well construction technology, including plasma drilling, downhole anchoring, and autonomous control systems, to enable deep geothermal energy where conventional drilling cannot reach.
CleantechDeep TechEnergyHardwareDover, US
Igor Kocis(Founder)inLubos Slovak(Executive Officer)inDusan Kocis(Executive Officer, Director)
BoardJulian Sebastian Wilhelm Heitmann(Director)Brigitta Andrea Illes(Director)Aurore Anna Helena Theresa Belfrage(Director)
Co-investorsNeulogy VenturesPlanet A VenturesExtantia CapitalLead Ventures
Hephae Energy Technology develops drilling design and measurement equipment aimed at harnessing the earth's heat for geothermal power, drawing on the founders' background in the energy and oil & gas industries.
CleantechClimate TechDeep TechEnergySpring, US
Co-investorsBaruch Future VenturesFuture VenturesGrantham Foundation
Terra Ferno develops patent-pending Autonomous Flow Control Devices (FCDs) designed for geothermal wells, aimed at improving flow distribution and addressing issues such as heel dominance and short-circuiting.
CleantechEnergyHardware
Other
Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.
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.