The RITTER Group

Dr.-Ing. RITTER Apparatebau GmbH & Co. KG
Coloniastrasse 19-23
44892 Bochum

Phone +49-234-92293-0
Fax +49-234-92293-50

The office of Ritter US LLC is temporarily closed.
Please contact Ritter Germany directly by email to
or call +1-203-969-5317 for further information.

6-liniya V.O. 37, 48
199004 St. Petersburg

Phone +7-92-194-40471
Fax +7-92-194-40471

Industries & Business Segments

Petrochemical Industry - Oil pump at sundown

Petrochemical Industry (R&D labs)

Chemische Industrie - Fabrikanlage

Chemical Industry (R&D labs)

Ruhr-Universität Bochum


Windrad in Maisfeld

BioGas Research & Development

Coal Mining Industry - miners underground

Coal Mining Industry (Quality labs)

Stahlindustrie - Arbeiter beim Gießvorgang

Primary steel production Industry (Quality labs)

Driving car - rear view

Car Manufacturers (R&D labs)

History & Development

Historical Milestones

  • 01.07.1951 · Foundation of the „Wilhelm Ritter Company“ by Wilhelm Ritter
  • 1958 · RITTER manufactures the first gas meter fully made out of plastics
  • 1986 · Take-over of management by Dr. Joachim Ritter
  • 1996 · Invention of “High Precision Level Indicator” for drum-type meters (patented)
  • 2000 · RITTER introduces the »MilliGascounter« being the smallest volumetric gas meter world-wide
  • 2012 · Biogas branch (Research & Development): Biogas Batch Fermentation System »BBFS«



  • Leading manufacturer of Laboratory Gas Meters world-wide
  • Distributor network in all industrial countries
  • Volumetric measurements of gas flow rates from 1 ml/h to 18,000 ltr/h
  • Repeatability of RITTER Drum-type Gas Meters better than 0.05% (measurements at PTB)
  • Calibration of gas volume with an uncertainty of 0.5 %

What customers say about RITTER:

  • »As the head of a Research & Development Department, know-how and precision are essential for me. RITTER Gas Meters provide both – a real plus for my work!«
  • »You can reach more than 75 RITTER distribution partners directly through our website!«
  • »The RITTER Multiple Sonic Nozzle Calibration System is an enormous help – increasing and ensuring the knowledge about our measurement skills!«
  • »You‘ll find a wide range of data sheets on our website. Take a look and you will notice our large worldwide distributor network that is ready to help you select the best meter for your needs!«