Founded in 1972, PUI Audio manufactures audio, haptic, and sensor components for equipment makers from its Dayton-area headquarters. Its engineers also develop custom solutions, building prototypes in-house and testing them through a design-to-manufacturing process. PUI Audio’s history includes the industry’s first PCB-mounted electromechanical buzzer, while its production and quality systems are maintained under ISO 9001:2015 certification.
ISO 9001:2015
RoHS 2002/95/EC, RoHS2 2011/65/EU, and RoHS3 2015/863/EU compliance
Compliance program
EU REACH compliance
Compliance program
DB Unlimited, LLCWith 40 years of industry experience, Dayton-based DB Unlimited is known for helping engineers solve difficult acoustic design problems. The company supports customers in medical, industrial, and transportation applications with standard audio components and custom engineering, including designs developed from scratch.DAYTON, OH
Dayton AudioFor more than three decades, Dayton Audio has been known in the loudspeaker community for practical, carefully engineered audio design. Based in Springboro, Ohio, the company develops its products primarily in the United States and works with OEM/ODM partners to create tailored audio platforms for manufacturers and audio enthusiasts.SPRINGBORO, OH
Floyd Bell IncSince 1972, Columbus-based Floyd Bell Inc. has made durable audible alarms, buzzers and audio devices for industrial equipment, with every product assembled in the USA. Its configurable sound solutions range from compact piezo alarms to programmable voice units, and the company says its engineers have developed customized systems for more than 500 projects. Floyd Bell is ISO 9001 registered, and its products are designed for demanding conditions with features such as IP68 and NEMA 4X protection.COLUMBUS, OH
Challenge ElectronicsFounded in 1981, Challenge Electronics designs and supplies audible components and electromechanical assemblies, pairing North American engineering with manufacturing and logistics support across global locations. The Deer Park company is particularly focused on space-conscious and application-specific sound solutions, including medical alarm transducers and compact speakers, while also providing custom engineering and pre-assembled battery accessories. Its operations are certified to ISO 9001:2015 and ISO 14001:2015, with products described as REACH- and RoHS-compliant.DEER PARK, NY