First Signatures
(the affiliations are given for identification only, and do not imply endorsement by the institutions):
People
Prof Michael Staack – Helmut Schmidt University Hamburg (Emeritus)
Prof August Pradetto – Helmut Schmidt University Hamburg (Emeritus)
Prof Johannes Varwick – University of Halle-Wittenberg
Prof Jürgen Scheffran – University of Hamburg (Emeritus)
Dr Hannes Jung – DESY; University of Antwerp (Emeritus); Chair Science4Peace
Dr Hans von Sponeck – Former UN Assistant Secretary-General 
Malte Albrecht – Chair NatWiss
Reiner Braun – Board Member, International Peace Bureau 
Dr Sonja Brentjes – previously Max Planck Institute for the History of Science
Dr Lars Pohlmeier – IPPNW Deutschland (Vorsitzender)
Dr Angelika Claußen – IPPNW Deutschland (Vorsitzende)
Susanne Grabenhorst – IPPNW Deutschland (Vorstandsmitglied)
Dr Uwe Trieschmann – IPPNW Deutschland (Vorstandsmitglied)
Dr Alexander Glazov – DESY
Dr Achim Juse – Neurophysiologe im Ruhestand, Friedensnetzwerk Kreis Pinneberg
Prof Thomas Stodulka – University of Münster
Florian Muhl – University of Hamburg
Prof Norman Paech – University of Hamburg (Emeritus)
Dr Sabine Großkopf – University of Hamburg
Dr Roberto Giacomelli – INFN
Prof Andrea Giammanco – UCLouvain, Belgium
Dr Sandro Fonseca de Souza – Rio de Janeiro State University - UERJ/Brazil
Aurelio Castro – Bisexual Research Group 
Heiko Ehrlichmann – DESY
Dr Greta Persico – University of Milan-Bicocca
Dr Bärbel Langmann – KlimaLab
Dr Marco Luppi – University of Bologna
Dr Denise Erb – HZDR
Dr Mariateresa Crosta – INAF
Dr Giacomo Ortona – INFN
Dr Valentina Scarpa – University of Florence
Dr Jan Sandel – pharmaceutical industry
Dr Michael Dittmar – ETH Zurich and CERN (retired)
Prof Thomas Schücker – Aix-Marseille University
Dr Sofia Andringa – LIP
Dr Andres Tanasijczuk – UCLouvain, Belgium
Prof Hans-Jörg Kreowski - University of Bremen 
Prof Simone Sibilio – Ca' Foscari University Venice
Dr Chiara Oppedisano – INFN
Prof Ugo Amaldi – TERA Foundation
Dr David Valls-Gabaud – CNRS - Observatoire de Paris
Prof Fabio Frosini – Università di Urbino Carlo Bo
Prof Frank Fehrenbach – University of Hamburg
Yusuf As – ver.di Gewerkschaftsrat 
Dr Flavio Del Santo – University of Geneva and International Union of Scientists against Militarism
Dr Francesca Vidotto – IEM-CSIC, Spain
Dr Daniel Britzger – Max Planck Institute for Physics, Munich
Prof Carlo Rovelli – Aix-Marseille University 
Prof Vincenzo Riso – University of Minho
Prof Elisa Giunchi – Università di Milano
Prof Ahmed Bawa – University of Johannesburg
Dr Maria Rosaria Masullo – INFN
Prof Mariarosa Anna Beatrice Melone – University of Campania Luigi Vanvitelli 
Prof Soumitro Banerjee – IISER Kolkata, India (Emeritus)
Dr Stefano Bianco – Istituto Nazionale di Fisica Nucleare (INFN) - Laboratori Nazionali di Frascati - Italy
Prof Ahmed Bassalat – An-Najah National University, Palestine
Dr Sevgi Dogan – University of Pisa
Dr Lorenzo Iannuzzi – University of Florence
Dr Marco Cattaneo – University of Helsinki 
Prof Elisabetta Petrucci - Sapienza Università di Roma
Dr Piero Donnini - Ca' Foscari University of Venice 
Francesca Navarro - Università degli Studi di Milano
Dr Caterina Peroni - CNR IRPPS
Prof Silvia Bagni - University of Bologna
Prof Werner Ruf - University of Kassel (Emeritus) 
Andrea Sottile - Università degli Studi di Milano
Prof Rosanna Morace - Università di Sassari
Dr Cristiana Fiamingo – University of Milan
Dr Monica Zoppè – National Research Council (CNR), Italy
Prof Leif Lönnblad – Lund University
Prof Vito Antonio Baldassarro – University of Bologna
Prof Giorgio Mariani – Sapienza Università di Roma (Emeritus)
Prof Annalisa Murgia – University of Milan
Prof Anne Maass – University of Padua (Emerita)
Dr İlayda Özdemir – New York University Abu Dhabi
Antje Daum – DESY
Dr Angela Gargano – INFN
Prof Michael Gasser – Indiana University and International Union of Scientists (Emeritus)
Dr Sabine Kraml – CNRS, France
Andreu Miquel Ginestet Menke – Silent Diplomat
Sigyn Meder – Support Committee for Julian Assange, Stockholm
Prof Peter Brandt – FernUniversität in Hagen (Emeritus)
Dr Tiziana Nadalutti – University of Pisa
Irina Lukka – National Library of Finland, Slavic Collection (retired)
Simona Troilo – Università dell'Aquila
Dr Eva Berglund – Stockholm University
Isabelle Casel – European Peace Project, German Peace Council
Dr Stephan Albrecht – University of Hamburg (retired)

The complet list of First Signatures can be found on science4peace webpage (due to limited space only the frist few signees are shown here).