Tethers Unlimited, Inc. (TUI) was founded in 1994 as a partnership between Dr. Robert Hoyt and Dr. Robert Forward to develop products based upon space tether technologies, including solutions for cleaning up space debris and transporting people and payloads through space.

Over the past two decades, TUI has expanded its technology portfolio to address industry needs for high-performance components for small satellites, robotic assembly and fabrication technologies, optical fiber winding and deployment, navigation sensors, satellite communications systems, and other advanced technology areas.