American Casting Company: Strategic Investment From Arcline Investment Management

By Amit Chowdhry ● Dec 6, 2025

Arcline Investment Management has completed a strategic investment in American Casting Company, expanding its portfolio within the aerospace, defense, medical, energy, and industrial manufacturing markets. The investment establishes a new phase of growth for the California-based casting specialist as demand rises for mission-critical and high-complexity components.

American Casting Company, founded in 1974, has become a key supplier of advanced investment cast parts made from superalloys and other difficult-to-pour materials. Its engineering capabilities support lighter-weight designs, higher operating temperatures, and improved performance for next-generation aerospace and defense programs. The company’s rapid prototyping and fully integrated process controls have positioned it as a preferred partner for aircraft engine platforms and unmanned systems developers.

Arcline’s investment reflects expectations of continued expansion across domestic manufacturing of specialized cast components. The firm highlighted growing production requirements among original equipment manufacturers and a widening gap between supply and demand for complex castings. The partnership is intended to accelerate American Casting Company’s capacity expansion and extend its technical capabilities to support long-term customer needs.

The company will continue to be led by Chief Executive Officer Chris St. John, who emphasized the strategic alignment between the two organizations and the stability Arcline brings to ACC’s future. Janes Capital Partners acted as financial advisor to American Casting Company in the transaction.

Arcline currently manages more than $20 billion in assets and focuses on building industrial platform companies positioned for durable, long-term growth. American Casting Company remains active across aerospace, defense, medical, energy, and specialty industrial applications and continues to emphasize customer service and operational quality.

KEY QUOTES:

“As original equipment manufacturers strive to increase production rates and reshore manufacturing of critical components, American Casting Company is uniquely positioned to address the large and growing supply and demand imbalance for complex, mission critical investment castings. We see an incredible opportunity to further expand ACC’s capabilities and capacity to unlock new growth opportunities.”

Arcline Investment Management, Statement From The Firm

“Arcline has an excellent track record of investing in high quality aerospace and defense suppliers to support their long term success. We see clear alignment in our core values and are excited to partner with Arcline for ACC’s next phase of growth.”

Chris St. John, Chief Executive Officer, American Casting Company

 

 

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