Our clients

Calliope has worked with hundreds of clients of all types, across all industries, and around the world. Here is just a selection of them. 

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AdHoc for Arcelor Mittal

  • Negotiations, Acquisition of ILVA by ArcelorMittal, 2017, Rome, Taranto and Bari, Italy

Al Jazeera

  • Interviews, 2015, Athens, Greece


  • Alibaba Investor Day 2016, 2016, Hangzhou, China
  • Alibaba Singles Day 11.11 Festival, 2016, Shenzhen, China
  • Alibaba Intellectual Property Protection Conference Milan, Italy


  • European Technical Summit, 2019, Dublin, Ireland


  • Annual Corporate Conference, Leadership Training Seminar, 2013, Paris


  • Sustainable Sugar Cane Farming, 2015, San Francisco, CA


  • Legal Meeting with CEO, 2015, Athens, Greece

Coloplast A/S

  • Coloplast Ostomy Days, 2018, Copenhagen, Denmark

Crédit Agricole

  • Meeting of CFO's, 2016, Dublin, Ireland
  • Company Visits, Berlin, 2016

Credit Suisse

  • Credit Suisse Financial Forum, 2016, Davos, Switzerland

Credit Suisse

  • AGM, 2017, Zurich, Switzerland

DSM Nutritional Products Ltd

  • European Works Council Meeting, 2016, Rheinfelden, Germany
  • European Works Council Meeting, 2017, Loerrach, Germany

Elsevier Masson

  • Internal Meetings, 2015, Paris, France


  • Premier Partner Conference, 2018, Sydney, Australia

Fundación Abertis

  • Biosphere Reserves, 2015, Castellet, Spain

Head Tennis

  • Product Launch, 2017, Munich, Germany

Hewlett Packard

  • Brazilian Delegation Executive Visit, 2015, San Jose, CA

Hilti Group

  • Employee Town Hall Meetings, 2015, Schaan, Liechtenstein


  • Macroeconomic Forum, regular client, Shanghai


  • Visit to China by IBM Board of Directors, 2012, Shanghai, Beijing
  • Visit of IBM's Global Chairman, President & CEO, 2016, Beijing, China