Fundraising FoxHephaestus Ventures
Venture capitalNew York City · Seed · 2 people tracked
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Investment thesis
Hephaestus invests in robotics and automation, backing contrarian founders building across the full journey from idea to IPO. Drawing on the mythological imagery of Hephaestus the forge-god, the firm frames technology as a means of both evolution and revolution. It emphasizes automation's impact on defense (less reliant on humans), domestic manufacturing (reshoring production), and food security for a growing population. The firm positions itself as built by operators for operators, seeking to support inventors who manipulate bits and atoms to restore vitality and craft.
Source: firm website, verified Oct 2, 2026.
Team · 2 people
from the firm's website & public directoriesSeasoned marketing executive with a prior company acquired by Omnicom (NYSE: OMC); has helped scale more than 10 ventures.
What they invest in
from 3 of 3 portfolio companiesClimate Tech ×3Advanced Manufacturing ×2AgTech ×1AI & Machine Learning ×1Biotech ×1Cleantech ×1Construction Tech ×1Consumer ×1
HQs:United States×3
Investments · 3 tracked
founders shown can be your intro path
Electric Air is a tech-enabled HVAC contractor that simplifies and reduces the cost of heat pump purchasing and installation for homeowners.
CleantechClimate TechConstruction TechConsumerEnergyHardwarePropTechSan Francisco, US
Jeremy Osborne(Founder)inChris Mui(Founder)inJeremy Osborne Chris Mui(Founder)Shreyas Sudhakar
Co-investorsCollaborative FundLeap Forward VenturesY Combinator3022 VenturesAgrolimen VenturesAttack Capital+5 more
Hedgehog Mushrooms uses artificial intelligence and proprietary bioreactors to optimize fungal cultivation conditions, producing food, biochemicals, animal feed, enzymes, and other products from fungi-based fermentation.
Advanced ManufacturingAgTechAI & Machine LearningBiotechClimate TechFoodTechRoboticsSan Francisco, US
Jamie Balsillie(Founder)inWilson Ruotolo(Founder)inJames Laurence Balsillie Jr.(Executive Officer, Director)Laura D'Asaro(Chief Commercial Officer)
BoardTrey Ward(Director)
Co-investorsCollaborative FundConvergeFormulate VenturesR7 PartnersSiddhi CapitalSoma Capital+9 more
OutSail Technologies manufactures autonomous retractable wing sails for vessels that harness wind power, using aerospace engineering to replace conventional fuel-powered propulsion systems.
Advanced ManufacturingClimate TechLogistics & Supply ChainSan Francisco, US
Arpan Rau(Founder)inBailey Da Costa(Founder)inJoseph Oorebeek(Founder)in
Co-investorsGaingelsY CombinatorAgrolimen VenturesAidenlair CapitalBalaji RollingBOND ST+4 more
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Frequently asked questions
- What stage does Hephaestus Ventures invest at?
- Hephaestus Ventures invests at the Seed stage.
- What sectors does Hephaestus Ventures focus on?
- Hephaestus Ventures focuses on Advanced Manufacturing, Defense Tech, FoodTech, PropTech, Robotics.
- Where is Hephaestus Ventures located?
- Hephaestus Ventures is headquartered in New York City, US.
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