Beijing Metstar Radar Co., Ltd. - China

BELFORT INSTRUMENT CORPORATION - USA

CAE S.P.A. - Italy

Campbell Scientific (Canada) Corporation - Canada

Campbell Scientific Ltd. - UK

Casella CEL - UK

China National Huayun Technology Development Corporation - China

CIMEL Electronique - France

COROBOR SYSTÈME - France

Climatronics - USA

Davis Instruments  - USA

Degreane Horizon - FRANCE

Delta-T Devices Ltd - UK

Detect inc - USA

Droplet Measurement Technologies - USA

EEC - USA

Eigenbrodt GmbH & Co. KG.  - Germany

Eijkelkamp Agrisearch Equipment  - Netherlands

EKO Instruments Co. Ltd. - Japan

Environmental Measurements Ltd. - UK

Environmental Systems & Services Pty. Ltd. - Australia

Ernst Basler & Partner GmbH - Germany

FAIRMOUNT WEATHER SYSTEMS LTD. - UK

Gamic mbh - Germany

Geonor AS - Norway

Gill Instruments Ltd. - UK

GRAW Radiosondes GmbH & Co. Kg. - Germany

high sierra electronics . USA

Hydrological Services Pty. Ltd.  - Australia

IBL Software Engineering  - Slovakia

imko micromodultechnik gmbh - Germany

International Met Systems - USA

IPS Meteostar Inc. - USA

JENOPTIK I Defense & Civil Systems  - Germany

JinYang Industrial Company Ltd. - Republic of Korea

Kipp & Zonen B.V. - Netherlands

KWeather Co. - Korea

Leosphere - France

LI-COR Biosciences - USA

LOCKHEED Martin Space Systems Company - USA

LOCKHEED Martin - Sippican - USA

Logotronic GmbH - Austria

LSI Lastem s.r.l. - Italy

McVan Instruments - Australia

Meisei Electric Co. Ltd. - Japan

METEK - Meteorologische Messtechnik GmbH - Germany

Meteo France International (MFI) - FRANCE

Meteolabor AG - Switzerland

Météorage - France

METEOSERVIS V.O.S. - Czech Republic

Microstep - MIS spol. s.r.o. - Slovakia

MIERIJ METEO BV - NETHERLANDS

Modem - France

MTech Systems Pty. Ltd. - Australia

NIPPON ELECTRIC INSTRUMENT INC. - Japan

Oriental Electronics, Inc. - Japan

OTT MESSTECHNIK GmbH & CO. KG - Germany

Pawan Exports - India

Précis Méchanique - France

Proton Energy Systems - USA

Pulsonic - France

Radiometrics Corporation - USA

R.M. YOUNG COMPANY - USA

RotroniC AG - Switzerland

SAGIM S.a. - France

Skandinaviska Meteorlogi- och Miljoinstument AB - Sweden

Scintec AG - GERMANY

SEBA HYDROMETRIE GMBH - GERMANY

SELEX SISTEMI INTEGRATI GMBH - GERMANY

SIAP + MICROS S.R.L. - ITALY

Skye Instruments Ltd. - UK

SPECTRA SENSORS, INC. - USA

Sterela - FRANCE

Sumitomo Electric Industries, Ltd. - Japan

Sutron Corporation - USA

TECHSENSE SOLUTIONS Sdn Bhd - Malaysia