Metro Plastics Technologies, Inc. was founded in 1975, is a custom plastic injection molding and tooling company based in Noblesville.

Helmer Scientific LLC is based in Noblesville, designs, integrates, manufactures, markets and distributes specialized medical and laboratory equipment to clinical and life science customers in more than 125 countries.

Addman Engineering is an additive manufacturing shop at the cutting edge of metal additive for aerospace, defense and other industries.