PEI Building

The Partner Companies Acquires Photochemical Machining Company, Photofabrication Engineering Inc.

CHICAGO, IL — The Partner Companies (TPC) announced the acquisition of Photofabrication Engineering Inc. (PEI).  Based in Milford, Massachusetts, PEI is a photochemical machining specialist with dedicated departments for precision etching and decorative etching.  The company is a leader in Titanium etching and processes most metals for mission-critical parts.

“TPC is excited to welcome PEI to the team. PEI is a gem we’ve been pursuing for many years, and they’re a standard bearer in capability and customer service” commented Dan Brumlik, Co-Chairman of The Partner Companies.  He added, “PEI’s expertise is a strong complement to TPC’s menu of capabilities, and their leadership team brings a robust knowledge of the manufacturing process.”

PEI’s General Managers, Kate Church and Rafael Vazquez, expressed the PEI team’s excitement in joining TPC. “We are eager to begin this new chapter. The resources that TPC has to offer are invaluable, and we are looking forward to sharing these new opportunities with our valued customers.”

The acquisition was finalized in April 2021. 

About Photofabrication Engineering Inc.  Focused on providing the highest level of quality, their state-of-the-art facility is dedicated to the PCM process with some of the most advanced equipment in the industry. PEI manufactures mission critical parts for most technology-driven industries as well as ornaments, collectibles, and other customized gifts. The company is a leader in Titanium etching, and offers Stainless Steel, Copper, Brass, Kovar, Sterling Silver, Beryllium Copper, Nickel Silver, Zirconium and other standard and specialty metals and alloys.

PEI’s quality control methodology and expertise have been recognized by major national and international organizations. They are ISO 9001, AS9100 and ITAR registrations. They are recognized by the Commonwealth of Massachusetts as a “green” manufacturer, and all of their products are proudly made in the USA.

About The Partner Companies  The Partner Companies (TPC) is a long-term operator of specialty manufacturing companies. TPC’s eight portfolio companies operate autonomously and cooperatively, providing integrated customer solutions across numerous specialized processes and materials. The companies primarily serve the aerospace, defense, medical, electronics, optics/laser technology, and renewable energy industries. Most are ISO certified, ITAR, NIST compliant, or NADCAP accredited.

Core processes include chemical etching, CNC machining, forming, electroforming, sheet metal fabrication, reel to reel plating, plating on plastics, ceramic metallization, crystal growth, finishing, and wire harness assembly. These capabilities produce critical parts and assemblies made of metals (common engineering alloys and exotics), plastics, ceramics, sapphire, silicon, and germanium.  For more information, please visit


Media Contact  Clancy Amadei

General Information and Quoting Contact  John Ellinthorpe

Investment Contact  Christian Streu