The membership of the Working Group is listed below. We are also pleased to acknowledge the following collaborators who are contributing to our current projects: Igor Maksimov and  Asakai Toshiaki of the National Metrology Institute of Japan; Frank Bastkowski and Steffen Seitz of the Physikalisch-Technische Bundesanstalt (PTB); and Daniela Stoica of Laboratory national de métrologie et d’essais, Paris.

Working Group Chair:

• David Turner (Sweden)

Vice-Chairs:

• Simon Clegg (UK)
• Sylvia Sander (Germany)

Other Full Members:

• Heather Benway (USA)
• Arthur Chen (China-Taipei)
• Andrew Dickson (USA)
• Vanessa Hatje (Brazil)
• Maite Maldonado (Canada)
• Alessandro Tagliabue (UK)
• Rodrigo Torres (Chile)

Associate Members:

• Eric Achterberg (Germany)
• Frank Bastkowski (representing PTB, Germany)
• Yuri Artioli (UK)
• Parthasarathi Chakraborty (India)
• Peter Croot (Ireland)
• Regina Easley (representing NIST, USA)
• Martha Gledhill (Germany)
• Giles Marion (USA)
• Peter May (Australia)
• Igor Maksimov (representing NMIJ, Japan)
• Frank Millero (USA)
• Ivanka Pizeta (Croatia)
• Darren Rowland (Australia)
• Daniela Stoica (representing LNE, France)
• Pavel Tischenko (Russia)
• Stan van den Berg (UK)
• Wolfgang Voigt (Germany)
• Christoph Völker (Germany)
• Feiyue Wang (Canada)
• Mona Wells (China)