The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Hogan Lovells US LLP

Work +1 202 637 5600
Fax +1 202 637 5910
Alicante, Amsterdam, Baltimore, Beijing, Beijing, Birmingham and 45 more

Mark Brennan

Work 202 637 6409
Hogan Lovells US LLP

Work Department

Technology, Media, and Telecommunications, Privacy and Data Protection


Mark Brennan’s practice encompasses communications and consumer protection, with a particular focus on the legal frameworks applicable to digital and mobile platforms, international telecommunications regulation, and mobile financial services. Mark has substantial experience assisting clients with complex consumer protection issues that span multiple fora, including the Federal Communications Commission (FCC), Federal Trade Commission (FTC), NTIA, Congress, state authorities, and state and federal courts. He represents clients on a wide array of regulatory and commercial issues related to the Telephone Consumer Protection Act (TCPA) and telemarketing issues, telecommunications licensing, mobile applications and location-based services, spectrum policy, equipment development, and data privacy and security matters. He regularly advises clients in all segments of the wireless and customer engagement ecosystems, including wireless carriers, global telecommunications providers, technology vendors, and application developers, as well as a diverse set of international clients from the transportation, financial services, education, and healthcare sectors.


Prior to joining Hogan Lovells, Mark was an associate at another Washington, D.C. firm, where his practice included telecommunications, civil litigation, and environmental law matters. He has also interned at the FCC in the office of former Chairman Michael Powell.


Co-chair, Mobile Payments Committee, Federal Communications Bar Association; Co-chair, Social Media, Membership & Marketing Committee, Federal Communications Bar Association; Member, International Association of Privacy Professionals; Member, American Bar Association; Board Member, National LGBT Bar Association; Board Member, Washington Area Lawyers for the Arts Past Executive Committee; Member, Federal Communications Bar Association; Past Chair, Charity Auction Committee, Federal Communications Bar Association; Past Co-chair, Young Lawyers Committee, Federal Communications Bar Association; Past Co-chair, Transactional Practice Committee, Federal Communications Bar Association; Past Co-chair, Membership & Marketing Committee, Federal Communications Bar Association


J.D., Georgetown University Law Center, 2005; B.S., summa cum laude, University of Florida, 2002

United States: Media, technology and telecoms

Telecoms and broadcast: regulatory

Within: Next Generation Partners

Mark Brennan - Hogan Lovells US LLP

Within: Telecoms and broadcast: regulatory

'There is no better firm', according to one client, than Hogan Lovells US LLP, which provides clients with a broad range of regulatory services, as well as counsel on high-profile telecoms litigation. The firm is distinguished by its ability to assemble and represent stakeholder coalitions in responding to developing issues, such as practice head Michele Farquhar's work for PTC-220, a consortium comprising leading rail companies and trade associations, which pertained to its implementation of new Positive Train Control safety systems and included spectrum buyout and swap arrangements, as well as substantial FCC representation in rulemaking and waiver proceedings. The firm also advises satellite television operator DISH Network on its proposal to deploy 5G services in the 12Ghz band, and its attempts to prove the viability of the proposal to the FCC. Wireless spectrum policy and 'telehealth' expert Trey Hanbury led the representation of DISH, and is also assisting T-Mobile in securing third-party support for its merger with Sprint, in one of the largest and most contested wireless transactions in recent years. Spectrum policy expert Ari Fitzgerald recently acted for SNR Wireless in negotiations concerning bidding credits from the FCC's 2015 AWS-3 auction, following a 2017 court victory establishing SNR's eligibility for the credits. Another key contact, privacy and communications law expert Mark Brennan, handles privacy and cybersecurity work for the Internet Association, a trade association with members including Google, Facebook and Amazon, in connection with the FCC's informational injuries workshop and the impact of GDPR on US-based internet companies.

[back to top]

Back to index

Legal Developments by:
Hogan Lovells US LLP

  • Hong Kong Enacts Competition Law

    After years of debate, on 14 June 2012 and in its last days of office, the Legislative Council finally enacted Hong Kong’s first cross- sector competition law.
    - Hogan Lovells

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to