GCM, an outsourced manufacturer of precision components and assemblies for medical technology end markets, has acquired Kettmann Machining, a manufacturer of precision-machined plastic and metal parts serving MedTech customers. GCM is backed by middle market healthcare private equity firm Avista Healthcare Partners. Financial terms were not disclosed.
The deal adds a modern 40,000 square foot manufacturing facility in San Jose, California, positioned near GCM’s existing Silicon Valley site. The additional footprint is intended to expand capacity and deepen capabilities in high-precision manufacturing, supporting demand for complex parts for next-generation medical devices.
Kettmann, founded in 1983 by Larry Kettmann, brings more than four decades of experience producing complex, high-precision parts for the MedTech sector. GCM said the combination strengthens its reputation for quality, innovation, and customer partnership, and further positions the platform as a preferred manufacturing partner to MedTech original equipment manufacturers.
The acquisition is GCM’s second add-on transaction since Avista’s initial investment in the platform. It follows GCM’s acquisition of Precision Swiss Products in December 2024, reflecting a continued strategy of building scale and broadening technical depth through targeted additions.
GCM is headquartered in Union City, California, with additional facilities in Chicago, Atlanta, and Wilmington, North Carolina. The company provides complex manufacturing services to OEMs in the medical and aerospace markets, with core offerings including precision machining, fabrication, and integration. It also provides value-added capabilities such as new product introduction, supply chain management, and value engineering. Kettmann operates from its San Jose site and offers CNC machining and sheet metal fabrication services, primarily for MedTech customers.
Avista Healthcare Partners, founded in 2005, is a New York-based private equity firm that said it has invested more than $10 billion across more than 50 healthcare businesses globally. The firm targets healthcare product and technology businesses with scale potential across four subsectors it views as benefiting from durable tailwinds.
KEY QUOTES
“We are thrilled to welcome Kettmann to the GCM family. This acquisition aligns with our strategic vision to provide highly complex, mission-critical parts and components to the MedTech industry and further enhances our product offerings, manufacturing capabilities and capacity. Kettmann’s long-standing history of success, its legacy of precision manufacturing, and its strong technical expertise will significantly benefit our customers and drive continued growth in the markets we serve.”
Seamus Meagher, CEO and President, GCM
“Our decision to join GCM was driven by a shared commitment to quality, innovation, and customer partnership in the MedTech industry. Since 1983, we’ve built a culture centered on craftsmanship, precision, and solving complex engineering challenges through personal and professional relationships with engineers in the industry. Becoming part of GCM’s platform enables us to scale our impact, invest in new technologies, and bring even more value to our customers while honoring the legacy our team has built over the last 40 years.”
Larry Kettmann, Founder and CEO, Kettmann Machining

