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The Netgem Group is lead by a team of industry experts all bringing years of experience and knowledge to the business.

Joseph Haddad

Graduate from the Polytechnique French School and ENST (Ecole Nationale Supérieure des Télécoms), Joseph Haddad created his 1st software company in 1987 and developed it internationally, then selling it to IBM in 1990. After 2 years in the USA, he became a business angel through his family company ‘J2H’, and in turn founded Netgem in 1996. Joseph Haddad is today the main shareholder and Chairman of Netgem Group.


Jean-Francois Galtier

Graduate of the ‘Ecole Supérieure d’informatique’ in Paris, Jean-Francois kicked off his IT career at SQL in 1993, followed by a few years at Simulog and Aucland, running R&D and Operation teams. He then entered the Telecoms world joining the Telco Monaco Telecom, and finally joined Netgem in 2005 as CTO, where he is in charge of Technical operations, and leads the Product Roadmap of Netgem across all software and hardwares solutions.


Sylvain Thevenot

Sylvain joined the Executive Committee of Netgem in 2015, establishing the new ‘Managed Services’ division in London focused on developing the end-to-end service business, initiated with ‘EE TV’, and now expanded to many more operator customers of Netgem, including TalkTalk TV 4K in the UK.

He brings 25 years of international experience, built on a strong leadership across both ‘start-ups’ (he founded one of the first ISPs in France) and Fixed and Mobile Telecom operators (running large P&Ls for Vodafone, TalkTalk, EE). Sylvain is now ‘Chief Commercial & Customer Officer’ (C3O) with key focus on Sales & Marketing, running all customer facing activities across B2B operators, as well as B2B2C and B2C services (starting in UK and France).


Sandrine Alexandre

Sandrine Alexandre holds a diploma in accounting and financial studies. She has held various positions in finance with SMEs and accounting firms. Sandrine Alexandre joined Netgem from its creation in 1996 as a management controller and then held the position of Deputy Chief Financial Officier. She was appointed the Netgem Group's CFO on October 1, 2020.

Caroline Gauthier

Caroline is a 20 years certified business lawyer. She has skills in various fields of law such as : IT law, business law, competition law, employment law…. She has started her career within a law firm and the European Institutions in Brussels before joining in the European Telco(Tiscali International Network) and later on the entertainment markets(Glow/Video Futur) before entering Netgem's staff.

Caroline is in charge of all legal aspects involving Netgem’s interests such as contracts negotiations(contract management), Intellectual Property policy, DPO… as well as Human Resources items. She previously held the same position within Tiscali's Board.

Reporting to Netgem’s Managing Director, Caroline holds a Ph D in European Business Law as well as a DU of Business English and IT Law(Law Faculty of Montpellier) and a Master in Comparative Law(Law Faculty of Strasbourg).

Mathias Hautefort

Mathias Hautefort is CEO of both NETGEM Group and Vitis. Vitis is a subsidiary of Netgem Group and was founded in 2016 with the support of external shareholders – the French Caisse des Dépôts et Consignations and the Groupe Oceinde -. Vitis is a Fiber ISP dedicated to the development of high-speed Internet on open-access networks, through innovative offers combining technology and content.

Before joining Netgem Group in 2011, Mathias gathered expertise in local and global industrial and Telecom topics. After starting his professional life at the French Ministry of Finance and Industry, Mathias joined SUEZ Group as COO of Lyonnaise Câble (Noos) in 2000. From 2005 to 2007, he was CEO of Viaccess, a branch/subsidiary of the Content department of the French telecom company France Télécom, after which he was appointed Deputy CEO of Infogrames (Atari), and he became CEO of Pace Europe in 2008.

Mathias Hautefort, 51, is a graduate from Ecole Polytechnique and ENST (Corps des Mines).