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Space Propulsion Group, Inc. 2019

65 E. BROADWAY, SUITE 308

BUTTE, MT 59701

Tel: (406) 533-6870

About us

Space Propulsion Group, Inc. (SPG) is an aerospace/defense company that was founded in 1999 to advance state-of-the-art propulsion and advanced energy technologies. SPG’s main focus is to develop technologies that are inherently safe, cost-effective, and environmentally friendly.

Our Services

SPG provides our clients with a “One-Stop-Portfolio” of services for the successful development of the most advanced aerospace and energy technologies, products, and systems including modeling/analysis, design/engineering, fabrication, and testing.

Our Management

we believe our most valuable assets are our employees. We have a strong, dedicated engineering team with world-class expertise in propulsion. Creativity, teamwork, flexibility and responsiveness are some of the strengths that enable our team to solve complex propulsion problems.

Our Founders

Our Vision

To be a leading provider of advanced aerospace and energy systems for both the government and private-sector.​

Our Mission

SPG possesses World-Class engineers and technicians that are fully capable of solving the most challenging advanced aerospace and energy technology problems.

Our People

SPG is involved in all aspects of hybrid rocket propulsion system design, modeling/analysis, fabrication, testing, and qualification.

Tech & Products

SPG is involved in all aspects of hybrid rocket propulsion system design, modeling/analysis, fabrication, testing, and qualification.

Successfully developed high regression rate hybrid rocket motor fuels and have conducted research and testing of Solid Fuel Ramjet Technology.