---
title: SeaCast Has Sold Its 50% Stake in Montana Precision Products to Doncasters
description: Janes Capital Partners advises SeaCast on the Sale of Its 50% Stake in Montana Precision Products to Doncasters
image: https://blog.janescapital.com/hubfs/JCP_Tombstones/SeaCast%20Doncasters_vF-1.jpg
---

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# SeaCast Has Sold Its 50% Stake in Montana Precision Products to Doncasters

 by [**Stephen Perry**](https://blog.janescapital.com/news-events/author/stephen-perry) on 11/12/2026

## Janes Capital Partners Advises SeaCast on the Sale of Its 50% Stake in Montana Precision Products to Doncasters

![SeaCast Doncasters\_vF-1](https://blog.janescapital.com/hs-fs/hubfs/JCP_Tombstones/SeaCast%20Doncasters_vF-1.jpg?width=382&height=353&name=SeaCast%20Doncasters_vF-1.jpg)Irvine, CA (November 12, 2026) – Janes Capital Partners announced today that it advised SeaCast LLC (“SeaCast”) on the sale of its 50% stake in Montana Precision Products LLC (“MPP”) to DPC Holdings PLC (“Doncasters”). With the transaction complete, Doncasters now joins Unison Industries LLC (“Unison”), a GE Aerospace company, as a 50/50 joint venture partner in MPP.

Founded in 2012 and based in Butte, Montana, MPP is a 112,000 sq., ft. AS9100D-certified aerospace manufacturing facility employing approximately 200 people. The business specializes in small structural castings and tube and duct assemblies for aerospace applications, including GE Aerospace engine platforms. Leveraging advanced manufacturing techniques and specialized technical capabilities, MPP produces high-quality precision components and welded assemblies for demanding aerospace applications.

SeaCast was advised by Janes Capital Partners as exclusive financial advisor and by Stoel Rives as legal counsel.

#### About Seacast

SeaCast ([www.seacast.com](http://www.seacast.com)) is a privately held company established in Seattle in 1985 that operates full-service investment casting foundries. The company serves a broad range of end markets, including aerospace, defense, oil and gas, transportation, pumps, and computer hardware. In addition to casting capabilities, SeaCast provides value-added services such as CNC machining, heat treatment, X-ray inspection, and assembly.

### About Doncasters

Doncasters ([www.doncasters.com](http://www.doncasters.com)) is a leading independent manufacturer of complex, highly engineered precision cast components and nickel-and cobalt-based superalloys primarily serving the high growth Aerospace and IGT end markets. The company primarily manufactures products that operate across some of the most in-demand aeroengine and gas turbine platforms, and through decades of operations, has developed deep engineering expertise, technical know-how, and a collaborative, customer-centric culture that provides solutions to its OEM customers' most complex casting challenges. The company operates 14 advanced manufacturing facilities across North America, Europe, the United Kingdom and Asia, serving a broad blue-chip client base worldwide and maintaining a leading position in specialist manufacturing and casting of superalloys.

### About Janes Capital Partners

Based in Irvine, CA, Janes Capital Partners is a leading investment banking firm focused solely on the Aerospace and Defense industry. The firm provides mergers and acquisition advisory services and assists clients in executing growth strategies and liquidity events. The members of Janes Capital Partners have completed more than 80 successful A&D transactions and $6.0 billion in closed transaction value. Securities transactions are conducted through JCP Securities, Inc., a registered Broker/Dealer, member FINRA/SIPC.

Janes Capital Partners is affiliated with Oaklins International Inc. ([www.oaklins.com](http://www.oaklins.com)). Oaklins is the world’s most experienced mid-market M&A advisor, with 850 professionals in 45 countries and 15 dedicated industry teams—including an Aerospace & Defense group led by Janes Capital Partners.

Janes Capital Partners was supported on this transaction by UK-based Oaklins S&W.

Topic: [Transactions](https://blog.janescapital.com/news-events/tag/transactions)

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