Ironwood Plastics
Michigan custom injection molder for complex insert, overmold, and high-temperature engineered resin parts, with in-house tooling and two US plants.
What they do
Ironwood Plastics has operated since 1979 and was sold to CTB, Inc., a Berkshire Hathaway company, in 2010. It runs facilities in Ironwood, Michigan and Two Rivers, Wisconsin.
The company states it has built its reputation on difficult projects with an emphasis on insert molding and engineered materials. Its About page lists IATF 16949 and ISO 9001 registrations for both plants and states ITAR compliance. Mold design and build is in-house tooling support for its molding work.
Capabilities
Injection molding
Custom injection molding with an emphasis on insert molding and engineered materials, from facilities in Ironwood, Michigan and Two Rivers, Wisconsin.
Commercial terms
Minimum order
Not stated
Lead time
Not stated
Quoting
By request
Cost tier $$$ of $$$$, ProductFlo classification
Ironwood is a US custom molder with IATF 16949 certification and ITAR compliance stated on its own site, positioned as a general service-led molder rather than a regulated specialist, which matches tier 3.
Alternatives
Compare side by side- Accudyn Products
Engineered injection molding company in Erie, Pennsylvania with an additional plant in Mexico, serving Europe, Asia and the Americas.
- Crescent Industries
Pennsylvania molder and tool builder for medical, pharmaceutical and defense work, ISO 13485 certified and ITAR registered.
- CKMOLD
Shenzhen mold maker and molder offering DFM, tooling and repeat production up to 1200 ton presses.
- BUK Group
German molder running more than 65 injection machines around the clock for large series plastic parts.
- Pexco
North American molder of high-performance thermoplastics such as PEEK and fluoropolymers for aerospace, medical and semiconductor parts.
Sources
Not verified
- MOQ
- lead time
Last verified November 11, 2026. Listings are informational and are not endorsements. Cost tiers are ProductFlo's classification, not quotes: confirm pricing, lead time and capability with the vendor.