About Us

Indiana Ordnance was founded in 1974 by William (Bill) Mertens as an R&D Testing and production facility for advanced munitions and is recognized by many as the home of the 40mm.  Today, our 3rd generation manages the facilities to support public and private munitions developers, long-range shooting and our on-site AirBnB.  We are conveniently located less than one hour from Indianapolis, Dayton and Cincinnati airports. Please contact us for a tour of our facilities.  

Engineering and Support Facilities; Main office with video-conference, meeting and training rooms, Quality Control Lab, Gun Shop, Machine Shop, Fabrication/Assembly Area, energetics mixing, loading and 3D Product design and development.  Long-range (1300 meter) and covered short range testing with various backstops for R&D, FAT and LAT support.  Local cadre of experienced personnel and machine shops to support your production.

Indiana Ordnance Innovations seeks strategic Prime partners for public and private pursuits in ordnance, weapons and body protection equipment. We offer incubator space to Veterans interested in new business ideas.

Contact Jeffrey Mertens for a visit to one of the most unique facilities in the ordnance industry.

Certifications & Registrations  Certified Veteran Owned - HUBZone/Small Business Enterprise