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Where We Started…

1954

Company foundation by Otto Pfannenberg in Hamburg, Germany



1958

Invention of the Industrial Filterfan



1962

Invention of the Industrial Flashing Light

…And Where We Are Now.

Your Global Partner for Thermal & Signaling Solutions

  • 3rd Generation Family Business with 12 Locations

  • Operations and R&D Center in America, Europe and Asia

  • Global Sales and Service Network for 24th reaction

  • Innovation proven by more than 220 Patents

Specialists in Thermal Solutions

Thermal Management for Enclosures

  • Thermostats & Hygrostats

  • Heaters

  • Filterfans

  • Cooling Units

  • Air/Water Heat Exchangers

  • Air/Air Heat Exchangers

Liquid Cooling Solutions

  • Chillers

  • Water/Water Heat Exchangers

  • Air/Water Heat Exchangers

Signaling Technologies for Machines and Buildings


  • Audible Signaling

  • Visual Signaling

  • Signal Towers

  • Ex-ATEX Signaling

  • Obstacle Lights

We Protect People, Machines and the Environment.

Automotive

Energy

Food & Beverage

Infrastructure

Manufacturing

Process Industry