Most of the files are

  Copyright 2017 LasLabs Inc.
  © 2013 Nicolas Bessi (Camptocamp SA)
  © 2014 Agile Business Group (<http://www.agilebg.com>)
  © 2014 Nemry Jonathan (Acsone SA/NV) (http://www.acsone.eu)
  © 2014-2015 Grupo ESOC (<http://www.grupoesoc.es>)
  © 2015 Antiun Ingenieria S.L. - Antonio Espinosa
  © 2015 Grupo ESOC
  © 2015 Grupo ESOC (<http://www.grupoesoc.es>)
  © 2015 Grupo ESOC <www.grupoesoc.es>
  © 2015 Grupo ESOC Ingeniería de Servicios, S.L. - Jairo Llopis.
  © 2016 Yannick Vaucher (Camptocamp)
  Copyright 2018 Flectra Community

Many files also contain contributions from third
parties. In this case the original copyright of
the contributions can be traced through the
history of the source version control system.

When that is not the case, the files contain a prominent
notice stating the original copyright and applicable
license, or come with their own dedicated COPYRIGHT
and/or LICENSE file.