 | Physikalisch-Technische Bundesanstalt | Dr. Sebastian Baack sebastian.baack@ptb.de | National Metrology Institute, Germany |
 | BEV - Federal Office of Metrology and Surveying | Robert Edelmaier, M.A. robert.edelmaier@bev.gv.at | National Metrology Institute, Austria |
 | Federal Office of Metrology METAS | Dr. Hugo Bissig hugo.bissig@metas.ch Dr. Henri Baumann Henri.Baumann@metas.ch | National Metrology Institute, Switzerland |
 | SP-Sweden | Dr. Oliver Büker oliver.buker@ri.se | National Metrology Institute, Sweden |
 | NMi | Mijndert P. van der Beek Mvanderbeek@nmi.nl | National Metrology Institute, Netherlands |
 | Kamstrup SA | Sören Lang sl@kamstrup.dk | Manufacturer, Denmark |
 | Diehl Metering GmbH | Edgar from the Castle edgar.vom.schloss@diehl.de | Manufacturer + state-approved testing laboratory for heat, Germany |
 | Intelligent Laser Applications GmbH | Dr. Michael Dues dues@ila.de | Manufacturer, Germany |
 | Hessian Weights and Measures Directorate Darmstadt | Holger Dickert, B.S. in Engineering Holger.dickert@hed.hessen.de | Directorate of Weights and Measures in Hesse, Germany |
 | Association of the German Water and Heat Meter Industry e.V. | Petermann Petermann@figawa.de | Association of the German Water and Heat Meter Industry |
 | Wien Energy | Michael Utz michael.utz@wienenergie.at | District heating supplier, Wien |
 | Landis + Gyr | Ulrich Kunstein ulrich.kunstein@landisgyr.com | Manufacturer, Germany |
 | Northwest German meter revision | Poshkeen Alessa alessa@nzr.de | Manufacturer, Germany |
 | Sensus Germany LLC | Jürgen Westpfahl juergen.westpfahl@sensus.com | Manufacturer, Germany |
 | European Association for Usage-Based Energy Cost Billing – e.V. | Christian Sperber info@evve.com | European Association |
 | , Ljubljana | Igor Poljak igor.poljak@energetika-lj.si | Slovenian Energy Supplier |
 | WSG Heat Meter Service GmbH | Stefan Rademacher Stefan.Rademacher@iqony.energy | State-approved test center and service provider for heat and cold meters |
 | Force Technology | Jesper Eriksen jeer@forcetechnology.com | Notified Body, Denmark |
 | Witt mechanical engineering | Alfons Witt office@a-witt.at | Engineering office |
 | Sontex | Humphrey Spoor hs@sontex.ch | Manufacturer, Switzerland |
| Mr. Fred Pfohl mid.pfohl@gmail.com | Technical expert (MID, MessEV) for heat, cold, water and gas at the KBS of PTB | ||
| Prof. Franz Adunka prof.adunka@aon.at | |||
| Dipl.-Ing. Joachim Wien | Joachim Wien joachim.wien@gmx.de | Heating costs expert | |
 | AGFW | Frank Espig f.espig@agfw.de | The Energy Efficiency Association for Heating, Cooling and CHP, Germay |
 | Techem | Arne Kähler arne.kaehler@techem.de | Measurement service provider, Germany |
 | Thermo Sensor, Inc. | info@thermo-sensor.de | Manufacturer, Germany |
 | Belimo Automation AG | Philip Holoch philip.holoch@belimo.ch | Manufacturer, Switzerland |
 | JUMO GmbH & Co. KG | Daniel Bott daniel.bott@jumo.net | Manufacturer + state-approved testing laboratory, Germany |
 | INTEGRA Metering AG | Didier Gröll didier.groell@integra-metering.com | Manufacturer, Switzerland |
 | ista SE | Joern Adick, B.S. in Engineering joern.adick@ista.com | Manufacturer, Germany |
 | Minol | Info info@minol.de | , a measurement service provider in Germany |
 | Zenner | Info info@zenner.de | Manufacturer, Germany |
 | Endress + Hauser | Peter Pasemann peter.pasemann@endress.com | Manufacturer, Germany |
 | Richter Messtechnik GmbH & Co. KG | Jörg Richter joerg.richter@richter-messtechnik.de | Service provider in the field of supply engineering + state-approved testing centre, Germany |
 | Testo Sensor GmbH | Patrick Hermann phermann@testo-sensor.de Daniel Fehrenbacher dfehrenbacher@testo-sensor.de Andreas Mohr amohr@testo-sensor.de | Manufacturer, Germany |
 | Measurement Canada | Pierre R. LeBlanc pierre.leblanc2@ised-isde.gc.ca | National Metrology Institute, Canada |
 | ISOIL Industria Spa | Luisfilippo Lanza, Engineer l.lanza@hemina.netRiccardo Montafia riccardo.montafia@isoil.it | Manufacturer, Italy |
 | Weihai Ploumeter Co. LTD | Tao Fu fuo@plou.cn | Manufacturer, China |
 | Flow Meter B. V. | Xiaofeng Liu steven@flommit.com | Manufacturer, Netherlands |
 | Qundis GmbH | info@qundis.com | Manufacturer, Germany |
 | Aquamess GmbH | Kai Kattge Kai.Kattge@aquamess.de | , Germany: a supplier of solutions for measuring water, heat, and cooling, and for transmitting measurement data |
