We began in 1940 in Dayton, OH, near Dayton International Airport and Wright Patterson Air Force Base, as Wyse Laboratories, manufacturing scale model aircraft, equipment, and instruments. Eventually, Wyse Labs began selling surplus military inventory back to the government to fulfill its spare parts requirements. As these military electronics became more complex, in 1951, Projects Unlimited, Inc. was born.

Soon, our engineering capabilities and growing reputation as a highly reliable aircraft and missile systems products provider led PUI into larger facilities and joint development projects with many aerospace customers, producing solid-state devices, relays, cables, harnesses, and test equipment.

By 1972, PUI had entered the field of solid-state buzzers, introducing the first “circuit board mountable” audio devices and a new term to the industry — the audio indicator. By 1978, continued growth led to the establishment of PUI Audio.

Today, PUI Audio is the world-class English-speaking audio leader, unparalleled in global coverage, products, and service. We offer medical, automotive, industrial, OEM, or consumer products––North America’s broadest line of audio indicators, speakers, microphones, transducers, and other products, proudly crafted to the highest possible standards.

Projects Unlimited, Inc. is an AS9100D and ISO 9001:2015 certified electronics contract manufacturer and solutions provider. We service military defense, aerospace and commercial aerospace industries, specializing in low volume, high mix electronic assemblies. Not only do we offer design engineering services in addition to build to print, we also provide solutions for test equipment, obsolescence needs and availability for lower-priced, readily available substitutions as well as feedback on product manufacturability.

Built on word of mouth, client referrals, and nearly 60 years in the aerospace industry, the Projects Unlimited family has grown to over 130 people. Our nearly 75,000 square feet state of the art facility is configured specifically for high performance, full-service electronic manufacturing. We pride ourselves on building quality products on-time delivery and the success of your project. We are growth-oriented, but with a firm grasp on our history and the core values that have allowed us to exceed our customers’ requirements with consistent value-added solutions at an affordable price.

"Projects Unlimited, Inc. is a Class 3 engineering-based electronics contract manufacturer and solutions provider."