Founded 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.
ISO 9001:2015
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ISO 14001:2015
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RoHS Compliance
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REACH Compliance
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TSCA Compliance
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Asbestos-Free Products Declaration
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Conflict Minerals Reporting
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Extended Minerals Reporting
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California Proposition 65 Compliance
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Slavery and Trafficking Policy
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Persistent Organic Pollutants Compliance
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PFAS Compliance
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Human Rights Policy
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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
PUI AudioFounded 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.DAYTON, OH
Knowles Precision DevicesFormed in 2014 by bringing together specialty manufacturers with more than 200 years of combined history, Knowles Precision Devices is known for engineering components for electronics where reliability cannot be compromised. Its work serves demanding applications such as medical implants and space systems, including equipment used on the International Space Station and Mars missions.CAZENOVIA, NY
Audiosears CorporationFor more than 50 years, Audiosears Corporation has manufactured telecommunications handsets, headsets and related acoustic components at its plant in Stamford, New York. Its in-house engineering, machining, fabrication and electronic/mechanical assembly capabilities support both standard production and customer-specific product development. The privately owned company maintains ISO 9001:2015 certification, and its employees are certified to IPC’s J-STD-001 electronics-assembly standard.STAMFORD, NY