A Private Family Owned Portfolio Company Committed to Advancing Precision Machining & Fabrication

Private Portfolio Company

As a private family-owned manufacturing portfolio company, Demmer Manufacturing focuses exclusively on middle-market manufacturing and fabrication companies.  Our affiliates have some of the most talented management teams and employees in the industry, and we have been proud to invest in the growth of these companies, ensuring their long-term competitiveness as precision machining and fabrication continue to rapidly advance. As we head deeper into the 21st century, Demmer Manufacturing will continue to invest in developing our affiliates’ technology and strategic infrastructure, as well as the skills of their employees.

Our Portfolio

Demmer Manufacturing prides itself on being a stable private equity portfolio company that makes strategic, long-term investments. Our affiliates are leaders in precision manufacturing for industries ranging from industrial and medical to defense and aerospace. Since 2010, our portfolio has consisted of:

Jonaco Machine

Since 1972, Jonaco Machine has remained on the cutting edge of precision machining for quality components for the medical, aerospace, and defense industries. By investing heavily in advanced systems and sophisticated equipment, Jonaco Machine has the rapid prototyping and mass production capabilities to produce medium- to high-complexity, precision-machined components in low or high volumes.

Intrex Aerospace

With industry-leading expertise in precision CNC manufacturing, Intrex Aerospace produces tight-tolerance machined components for the aerospace and defense industries. Their complete program management ensures unparalleled efficiency and quality control by including engineering support, sourcing of raw materials, precision parts machining, special process management, and documentation.

Quality Tool

Founded as a tool and die manufacturer in 1959, Quality Tool has grown to become a world-class provider of low-cost, precision metalworking for the industrial, medical, specialty electronics, and defense industries. With in-house, expert production engineers and flexible tooling capabilities, Quality Tool can customize the process for each part or assembly.

ELO Engineering

Providing complex precision metal fabrication, ELO Engineering serves industries ranging from transportation and medical to defense and aerospace. With capabilities that include prototyping, metal laser cutting, precision machining, welding, powder coating, assembly, and kitting, ELO Engineering maintains industry-leading efficiency to ensure on-time delivery and exceptional cost management.

Palmer Engineering

As a vertically integrated precision metal stamping company, Palmer Engineering is able to produce tight-tolerance parts in difficult configurations for the automotive, commercial, and defense industries. Palmer Engineering’s capabilities include stamping, blanking, and in-die tapping and nut insertion as well as a range of secondary processes. With a highly trained interdisciplinary team, Palmer Engineering customizes each manufacturing program and ensures quality throughout every phase—efforts that have earned 14001:2015, and IATF 16949:2016 certifications.

Demmer Manufacturing Provides Robust
Business Growth Strategies
For Middle-Market Machining & Fabrication Companies
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Demmer Manufacturing

People. Precision. Performance.
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