Producer
Grede Holdings
North American gray and ductile iron foundry group; owned by Gamut Capital Management (New York PE) since 2019 (acquired from American Axle & Manufacturing for $245M). Post-2025 divestitures: sold Browntown, WI and Iron Mountain, MI foundries to TRM Equity II (completed November 28, 2025); closed Brewton, Alabama foundry (end 2025). Current footprint (2026): six plants — Biscoe NC, Meadville PA, New Castle IN, Reedsburg WI, St. Cloud MN, Wauwatosa WI — plus three machining operations. ~3,000 employees. Formerly also included Citation Corporation (merged 2010). Supplies large axle housings, drivetrain components to agricultural, construction, and commercial vehicle OEMs. Historical 12% US market share estimate; now somewhat smaller after plant divestitures.
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Facilities
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Stories
What they make
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Where they make it
2 facilities
Grede Liberty Foundry →
USMilwaukee, Wisconsin · iron_foundry
Historic Grede Liberty foundry (est. 1920); part of Grede Holdings' contracted footprint post-2025 divestitures. Grede sold its Browntown WI and Iron Mountain MI plants to TRM Equity II (completed November 28, 2025) and closed Brewton AL (end 2025). Remaining Grede plants (6 locations) are under Gamut Capital Management (NY PE, acquired from American Axle for $245M in 2019). Liberty-brand heritage foundry assets still serve ag, construction, and commercial vehicle OEMs with large axle housings and drivetrain castings.
Grede – Biscoe, North Carolina →
USNorth Carolina
One of six remaining Grede foundry plants post-2025 divestitures (Browntown WI and Iron Mountain MI sold to TRM Equity II November 2025; Brewton AL closed end 2025). Biscoe, Montgomery County, NC. Produces gray and ductile iron castings for agricultural, construction, and commercial vehicle OEMs. Grede's remaining six plants (Biscoe NC, Meadville PA, New Castle IN, Reedsburg WI, St. Cloud MN, Wauwatosa WI) represent the core of this contracted footprint under Gamut Capital Management ownership.
What else they do
Business segments
The company's full revenue map — where this supply-chain role fits within their broader business.
Agricultural & Construction Drivetrain Castings
45%Commercial Vehicle Castings
35%Machining Operations
20%
Intelligence
What's known
Sourced claims about this company's role in supply chains — chokepoints, concentration, incidents, dual-use connections.
Capacity2023
The Grede/Waupaca duopoly in large US independent iron casting (both supply John Deere; both under foreign-linked ownership — Grede under PE, Waupaca under Japan's Proterial Ltd.) represents a significant concentration in the US iron casting supply chain for agricultural, construction, and commercial vehicle OEMs. Both companies produce axle housings, differential carriers, and drivetrain castings that are difficult to substitute quickly: each casting design requires 6-24 months of qualification work at a new supplier. If either Grede or Waupaca experienced a major disruption (labor action, energy crisis, natural disaster), a significant fraction of US farm equipment, truck, and construction equipment production would be constrained — with limited near-term domestic alternatives. The US industrial base for this critical intermediate manufacturing step is narrower than publicly understood.
Grede Holdings LLC ↗Did you know2023
Grede Holdings is part of a pattern: US gray and ductile iron foundry capacity is consolidating into fewer, larger operations under private equity ownership, while overall capacity is declining. The US iron foundry industry has lost approximately 40-50% of its plant count since 2000 as Chinese and Mexican casting imports, energy costs, and environmental compliance costs drove many smaller foundries to close. The remaining major US independent foundries (Waupaca, Grede, MetalTek, Milwaukee Castings) increasingly serve OEMs that require domestic sourcing (defense, nuclear, food equipment) or just-in-time delivery that offshore sourcing cannot provide. Grede's 2025 plant closures and divestitures reduced total US foundry employment by several hundred workers. As US OEM customers (Deere, CNH, Caterpillar) source more castings domestically for supply chain resilience post-COVID, fewer large US foundries with greater capacity concentration creates potential choke points.
American Foundry Society ↗Origin2023
Grede Holdings traces to Grede Foundries, a Wisconsin-based foundry group that grew through the 20th century and was merged with Citation Corporation in 2010 to create one of the largest US gray and ductile iron foundry operations. American Axle & Manufacturing acquired Grede in 2014, then sold it to Gamut Capital Management (New York private equity) in 2019 for $245M. Under PE ownership, Grede underwent significant rationalization: the Browntown WI and Iron Mountain MI foundries were sold to TRM Equity II (November 2025) and the Brewton Alabama foundry was closed (end 2025), reducing the footprint from ~9 plants to 6. This plant rationalization is part of a broader US foundry industry consolidation trend driven by labor costs, electric furnace efficiency requirements, and OEM demands for fewer, larger suppliers with integrated machining capabilities.
Grede Holdings LLC ↗