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Pinsent Masons LLP

Work +33 1 53 53 02 80
Fax +33 1 53 53 02 81

Diane Mullenex

Work +33 1 53 53 09 71
Pinsent Masons LLP

Work Department

Telecoms, Media and Technology


Partner, Global telecoms practice head, Global gaming & gambling practice head


Diane started her carreer in Singapore in 1994 working for international law firms focusing her practice on M&A in the TMT and energy sectors. She was then appointed as a partner at WATSON FARLEY WILLIAMS but soon decided to come back to France were she founded ICHAY & MULLENEX AVOCATS with Frédéric Ichay in 2014. The niche firm established itself as an expert in the sectors of new technologies and telecoms. In 2014, ICHAY & MULLENEX AVOCATS merged with PINSENT MASONS to reinforce its international proposal and create a dedicated practice, in the Paris office, to the TMT industry on transactions, projects, regulatory and litigation matters.


French, English, Spanish


Diane is the Chair of the communication committee of the International Bar Association and a member of the International Masters of Gaming law and the International Association of Gaming Advisors. She is also a Foreign Trade Advisor appointed by the French Government. She was recently awarded the Insignia of Chevalier de l’Ordre national du Mérite for her involvement in promoting the French TMT sector.


Admitted as a solicitor England & Wales, in 2002 - Admitted to the Paris Bar, as an Avocat à la Cour, in 1995 - Master in IT law in Versailles University, in 1994

France: Industry focus

IT, telecoms and the Internet

Within: IT, telecoms and the Internet

Pinsent Masons LLP has particular expertise in data privacy regulation issues, but the TMT practice’s recent caseload also includes an e-reputation dispute against a journal and the negotiation of IT contracts. Team leader Annabelle Richard assisted a global industrial manufacturer with its GDPR compliance strategy and whistleblowing scheme, while Diane Mullenex advised on European commercial aspects of a corporate deal between a digital video client and a smart TV manufacturer, and assisted a communications service with telecoms regulations. Also noteworthy is the representation of a digital service provider in a liability and damages claim against a French telecoms operator pertaining to a security breach which allowed third parties to illegally connect to the defendant’s network. Legal director Melina Wolman specialises in litigation and is also a key contact.

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London: Corporate and commercial

Commercial contracts

Within: Commercial contracts

Pinsent Masons LLP acts for public and private sector entities in transformational BPO and IT/technology outsourcing and procurement, as well as projects involving distressed companies. Simon Colvin leads the team, which is particularly strong in matters associated with advanced manufacturing and technology, as well as the financial services sector. It is also increasingly active in projects connected with the infrastructure sector, particularly where there is an interplay with technology. David Isaac, Justin Chan and others are assisting Transport for London (TfL) with its groundbreaking Surface Intelligent Transport System outsourcing programme. In a separate matter, in 2016, Chris Martin led the advice to the University of Birmingham on the procurement of a cloud-based suite of new back-office systems. The Ministry of Justice, Heathrow Airport, Serco and Capita are other key clients. Other key figures include Yvonne Dunn, who leads the fintech practice, Tim Roughton, who is experienced in acting for suppliers and customers in outsourcing transactions in the life and pensions industry, Diane Mullenex, and recently promoted partners Natalie Trainor and Alison Eckford.

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London: Crime, fraud and licensing

Gaming and betting

Within: Gaming and betting

Pinsent Masons LLP’s ‘unique team’ provides ‘swift and precise advice which focuses on finding a solution whilst also making sense from a business perspective’, and the group is ‘very knowledgeable about all new developments within the sector’. The firm is known for its expertise in business expansion and financing, and regularly advises the introduction of new business-critical systems, relocation and strategically significant disputes, alongside other gambling and betting industry issues. The team is headed by the ‘extraordinary’ Diane Mullenex who ‘is at the forefront of all new developments and has true international experience’, finding ‘very workable solutions to all problems’. Recent work includes assisting AMC Entertainment with its acquisition of Odeon Cinemas, and advising Crystal Palace Football Club on stadium alcohol licensing.

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London: TMT (technology, media and telecoms)

IT and telecoms

Within: Leading individuals: Telecoms

Diane Mullenex - Pinsent Masons LLP

Within: IT and telecoms

Pinsent Masons LLP’s team provides ‘first-class’ advice, and its impressive client roster includes Fujitsu and Transport for London. Simon Colvin, who is the global head of the firm’s TMT practice, is noted for his transactional expertise, particularly in the public sector. Head of telecoms Diane Mullenex, who is ‘always at the forefront of industry developments’, is advising BT’s Middle East operations on telecoms, ICT and regulatory matters. She also assisted the Communications Regulatory Authority of Qatar with drafting a decision and order against Qatar’s incumbent telecoms operator Ooredoo. David Isaac is global head of the firm’s advanced manufacturing and technology sector, and recently advised Transport for London on its surface intelligent transport system programme. Angus McFadyen focuses on financial services technology, and acts for clients including Aviva, Aegon, AXA and Tesco Bank. Technology disputes specialist Ian Birdsey was recently made partner and David McIlwaine handles contentious matters in the TMT sector. Senior associate Anthony Fielding, who is ‘extremely responsive’, ‘personable’ and ‘articulate’, is an expert in technology and telecoms deals, particularly in the Middle East. Legal director Chris Breen specialises in IT disputes and is ‘dedicated’ and ‘extremely thorough’.

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Legal Developments in France

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • The new French regulation applying to national insurance contributions for managers and shareholders

    French insurance contributions on executive and shareholder remuneration (pay + dividends) have been substantially increased by the National Insurance Funding for 2013 Act, No. 2012-1404, of 17th December 2012. Until 31st December 2012, all dividends were subject to national insurance contributions on unearned income but henceforth, under Article L136-3 of the National Insurance Code, amended by Act No. 2012-1404, certain dividends   are considered as pay received by executives and shareholders and are therefore subject to the national insurance contributions on pay. The Act also abolished the ceiling on health insurance contributions payable by the self-employed and all this means that businesses must rethink the way that they have been structured until now.

    The People's Republic of China has initiated an overhaul of its social security system, reformed the personal taxation regime and has extended the scope of these laws to foreigners residing in China.

    The Kingdom of Morocco is supporting the ambition of becoming the leading financial place for Africa. In this context, a wave of draft laws is to be passed and implemented within the following months, amongst which, the Law No. 53.08, setting up a new financial authority, and the Law No. 54.08, reforming public offering rules, are of paramount importance to Moroccan and foreign issuers, and financial institutions.

    The opportunities offered to foreign investors by the Chinese mergers and acquisitions market are increasing every year: in 2010, transactions involving foreign companies came to 60.1 billion euros, an increase of 21.2% compared with 2009. Seen from the West, where markets are declining, all sectors of the Chinese economy seem to be undergoing promising development and the statistics indicate that the Middle Empire will be a lasting springboard for growth.
  • Prime de Partage des Profits

    Le dispositif L’article 1er de la loi de financement rectificative de la Sécurité sociale pour 2011 oblige les sociétés commerciales de 50 salariés et plus, dont les dividendes par part sociale ou par action sont en augmentation par rapport à la moyenne des deux années précédentes, à verser une prime à l’ensemble de leurs salariés

    Types of investors The private equity (PE) funds that are active in Bulgaria are not raised or registered in the country. Some Bulgarian PE funds were raised recently, but there are no statistics as to the sources of their funding, their number, the funds that were accumulated, etc.

  • Landmark decision by French Competition Authority in conditioned LPG case

    cartel case closed after discovery that leniency application was largely based on forgeries and rejection of collective dominant position objection.
  • 2012 supplementary budget

    The second supplementary budget published in the Official Gazette September 19, 2011 provides for two key measures that affect the deferral of tax losses and taxation of capital gains realized on the sale of equity securities .
  • Actualité législative fiscale

    Au delà des mesures applicables à l’ensemble des contribuables (telles que la limitation du report des déficits ou la réforme du mode de calcul des plus values sur cessions de participations),le plan de réduction des déficits annoncé le 24 août dernier par le gouvernement comprend des mesures qui intéressent spécifiquement les acteurs du secteur financier.