Nielsen-Kellerman Co. makes weather and sports performance instruments, including Kestrel meters, for athletes and professionals.
Founded in 1978 in Boothwyn, US, Nielsen-Kellerman Co. makes weather and sports performance monitoring instruments for athletes, emergency services and researchers. Its flagship products include Kestrel weather meters and NK Sports tools, sold to consumers and organisations. In December 2024, Gladstone Companies acquired the company from Clearview Capital and PNC Erieview Capital for undisclosed terms. It is recorded at the Seed stage and is led by Chuck Arkell.
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