Doncasters acquires SeaCast's 50% stake in Montana Precision Products
Montana Precision Products is a Butte, Montana aerospace castings and assemblies maker with about 200 employees, now a 50/50 joint venture between Doncasters and GE Aerospace's Unison.
With the transaction complete, Doncasters joins Unison Industries, a GE Aerospace company, as a 50/50 joint venture partner in Montana Precision Products. The purchase price was not disclosed.
Montana Precision Products was founded in 2012 and is based in Butte, Montana. It operates a 112,000 square foot AS9100D-certified aerospace facility employing about 200 people. The company makes small structural castings and tube and duct assemblies, including parts for GE Aerospace engine platforms. SeaCast, a privately held investment casting foundry founded in Seattle in 1985, was the seller.
Deal facts
- Target
- Montana Precision Products
- Business
- Aerospace precision castings and welded assemblies manufacturer, 50% stake held by SeaCast
- Buyer
- Doncasters
- Seller
- SeaCast LLC
- Deal type
- Strategic
- Headquarters
- Butte, Montana
- Advisers
- Janes Capital Partners financial adviser to SeaCast LLC
- Stoel Rives legal counsel to SeaCast LLC
- Status
- Completed
- Announced
- Thursday, November 12, 2026
Sources
- Business WireNov 12, 2026
- Yahoo FinanceNov 12, 2026
Written by Buyout Desk from the sources above. Spotted an error? Email corrections@buyoutdesk.com.