AMTEC Corporation is the largest volume producer of 40mm Grenade Ammunition and Fuzing in the world, and is the current sole Prime Contractor to the US Department of Defense for the 40mm Family of Grenade Ammunition. The 40mm Family of Grenade Ammunition includes both low velocity and high velocity cartridges across tactical high explosive, training, illumination, and non-lethal configurations.

AMTEC Corporation also produces various precision fuzes, firing devices, impact switches, and initiators for the US Department of Defense, other prime contractors, and international allies.

Headquartered in Janesville, Wisconsin, AMTEC Corporation provides state-of-the-art facilities and equipment, highly qualified personnel, and substantial financial resources to ensure high quality, reliable products delivered on-time. AMTEC Corporation is also a certified small business under NAICS 332993 (Ammunition Manufacturing, except small arms).

As a successful prime contractor to the US Department of Defense on major programs, AMTEC Corporation demonstrates effective Systems Management (including supply chain, inventory, risk, Technical Data Package maintenance, and system engineering) to ensure delivery of safe, effective and reliable product. Our quality system is ISO 9001:2008 registered.

AMTEC Corporation


Photos courtesy of

U.S. Army & U.S. Marine Corps

AMTEC Corporation


AMTEC Corporation
4230 Capital Circle
Janesville, Wisconsin 53546