Service Provider Spotlight: Penn United

29 APRIL, 2026 | Reading time: 4 min

 

A legacy of precision manufacturing meets scalable metal additive manufacturing

Founded in 1971 in Cabot, Pennsylvania, Penn United Technologies began as a traditional tool and die shop and has since grown into a diversified, employee owned manufacturing organization serving highly regulated and performance driven industries. Today, Penn United combines decades of expertise in precision tooling, machining, grinding, and materials science with advanced metal additive manufacturing (AM), positioning the company as a trusted partner for customers moving from prototype development to qualified serial production.

Through its dedicated AM group, Penn United Additive, the company delivers end to end metal AM solutions that integrate laser powder bed fusion (LPBF) with robust post processing and quality systems. This holistic approach allows Penn United to support complex applications across aerospace and defense, energy, medical, nuclear, and industrial markets.

Penn United Main Campus from the air

Bridging Traditional Manufacturing and AM Technology

One of Penn United’s defining strengths is its ability to integrate AM seamlessly into an established, industrial production environment. Rather than treating AM as a standalone capability, the company views it as an extension of its tooling and precision manufacturing expertise, another tool in a much broader toolbox.

This integration enables Penn United to apply decades of knowledge in tight tolerance manufacturing, inspection, and qualification to additively manufactured parts. With in house secondary operations including machining, grinding, heat treatment, and surface finishing, Penn United can deliver production ready components that meet stringent customer and regulatory requirements.

 

Scaling Metal AM with EOS Technologies

Penn United began its AM journey in 2018 with the installation of its first EOS M 290 system. Since then, its metal AM capabilities have expanded significantly to support both development and production workloads.

Today, Penn United operates a fleet of EOS metal systems, including five (5) EOS M 290, three (3) EOS M 400-4, and one (1) AMCM M 4K 3D printers. This scalable EOS technology portfolio enables Penn United to address a wide range of part sizes, materials, and production volumes while maintaining consistency and repeatability.

By leveraging EOS powder bed fusion technology alongside its well-established manufacturing infrastructure, Penn United supports customers through the full lifecycle of additive adoption, from early design exploration and parameter development to qualified production parts.

Innovation and Serial Production

As Penn United’s AM capabilities matured, the focus shifted from experimentation to reliable production. The company’s background in contract manufacturing proved instrumental in navigating the realities of production planning, machine utilization, and customer qualification.

Penn United’s AM team emphasizes disciplined process control, cross training between additive and subtractive manufacturing, and clear customer education around design intent and production expectations. This approach has enabled the company to successfully transition multiple applications into serial production across demanding industries.

Reflecting on this evolution, Jake Jones, Manager of Additive Manufacturing Business Development at Penn United, shared:

“We strive to meet new challenges with state of the art capabilities and innovation. We look forward to leveraging advanced additive manufacturing technologies to benefit our customers across various industries.”

Penn United also assists other organizations kickstarting their own metal AM ventures. As a full precision shop and solution provider, Penn United operates customer-owned AM assets and EOS machines, resulting in a mutually beneficial manufacturing partnership. Under this type of operational agreement, customers may have guaranteed access to machine capacity for their own products, while also taking advantage of the existing AM infrastructure and post-processing capabilities at Penn United.

Suppressor

Why Penn United Chooses EOS

For Penn United, EOS technology plays a central role in delivering repeatable, production grade additive manufacturing at scale. The reliability, material ecosystem, and industrial maturity of EOS systems support Penn United’s commitment to quality and long term customer success.

EOS platforms enable Penn United to maintain process stability across machines, support a broad range of metal alloys, and align additive manufacturing with existing quality frameworks. This consistency is especially critical for customers operating in regulated environments where documentation, traceability, and repeatability are essential.

 

A Partner for Production Ready Additive Manufacturing

By combining EOS metal additive manufacturing technology with deep expertise in traditional manufacturing, Penn United offers a compelling model for industrial AM adoption. The company’s integrated approach reduces risk for customers, accelerates qualification timelines, and enables additive manufacturing to deliver real production value—not just design freedom.

As AM continues to move from novelty to necessity, Penn United stands out as a service provider that understands both the promise of AM and the discipline required to make it work at scale.

Penn United Facility AM-Room

Learn more about Penn United and explore more EOS contract manufacturers here: