AMPAC In-Space Propulsion (ISP) develops and supplies liquid rocket engines, tanks and propulsion systems for commercial and military satellites, launch vehicles and missile defense.

AMPAC-ISP is a wholly-owned subsidiary of American Pacific Corporation (AMPAC) – an ISO 9001 certified company with divisions and subsidiaries that also manufacture active pharmaceutical ingredients and registered intermediates, clean fire-extinguishing agents, and water treatment equipment.

ISP’s diverse product line includes bipropellant and monopropellant thrusters, electric propulsion, apogee / upper stage engines, complete propulsion systems, and rolling metal diaphragm tanks. We also provide launch site support for propellant loading and safety training.

The company has manufacturing and test facilities in Niagara Falls, New York, and Westcott, UK – AMPAC-ISP UK Limited.

AMPAC-ISP was formerly the liquid propulsion division of Atlantic Research Corporation and was acquired by AMPAC in 2004.

In addition to AMPAC-ISP, other AMPAC divisions include:

AMPAC Fine Chemicals (AFC)
AFC manufactures active pharmaceutical ingredients and registered intermediates.

Western Electrochemical Company (WECCO)
WECCO offers variety of perchlorates, primarily for use in space flight and defense systems.

AMPAC-ISP UK Limited
AMPAC-ISP UK Limited manufactures liquid rocket engines for international customers.

Halotron Division
Clean fire-extinguishing agents for commercial,
industrial, maritime and military markets.

American Azide Corporation (AAC)
AAC is the only producer of sodium azide in
the United States.

PEPCON Systems (PEPCON)
PEPCON manufactures water treatment equipment, including odor control and water disinfection equipment.



Halotron Company