H3X Technologies
YC W21Denver, US · Founded 2020 · 58 employees · 4 known investors
H3X designs and manufactures advanced electric motors for industrial applications. The company operates a full-stack engineering facility with in-house manufacturing capabilities including CNC machining, power electronics labs, and test cells.
Advanced ManufacturingClimate TechDeep TechEnergyHardwareSpace TechAirplanesClimateElectric Vehiclesin /h3x-technologies@ycombinator
Founders & leadership· Y Combinator alumni (W21)
Eric MaciolekinFounder
Jason SylvestreinFounder
Investors · 4
In the news
- H3X Technologies Funding | $5-7.6M Revenue | Complete Analysis | Extruct AIextruct.ai · 2025
- Louisville’s H3X Technologies raises $20M Series A round – BizWestbizwest.com · 2024
- Revolutionizing Sustainability: H3X Technologies Secures $20 Million in Funding for High Power Density Electric Motors | Signalbaseleadsontrees.com · 2024
- Lockheed Martin Backs Megawatt-class Electric Propulsion Developer H3X | FutureFlightfutureflight.aero · 2023
- H3X Ships Advanced Electric Drives For Customer Testing | Aviation Week Networkaviationweek.com · 2023
- H3X startup has motor drives that could help electrify flight | Automotive Newsautonews.com · 2022
- Start-up Promises All-electric Propulsion For 100-Seater Airliners | Air Transport News: Aviation International Newsainonline.com · 2022
- H3X Technologies - 2026 Company Profile, Team, Funding & Competitors - Tracxntracxn.com · 2021