Tesseract Space is a provider of cost-effective propulsion components and systems for in-space applications spanning from commercial Earth-orbiting satellites to robotic exploration missions. A Y Combinator 2017 graduate, Tesseract has designed, built, and fired its first prototype thruster with propulsion systems use low-toxicity propellants, significantly reducing the cost of fuel, eliminating the hazards of toxic fuels, and providing better fuel economy.