David Zeffman

David Zeffman

Head of Gambling and Sport

CMS Cameron McKenna Nabarro Olswang LLP
Cannon Place
78 Cannon Street
United Kingdom
Languages English

David has been one of the leading lawyers in the UK media sector for over 25 years and has extensive experience providing strategic, commercial and regulatory advice to clients in the gambling, sport and television sectors. He has been involved in many of the major transactions that have taken place in these sectors, including the launch of several television channels and the sale of media rights to some of the world's biggest sporting competitions.

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David Zeffman of CMS advises major clients in cricket and football in relation to global media rights, as well as sponsorship arrangements. Clients describe him as "brilliant, bright, commercial and well connected."

Chambers 2019

London-based David Zeffman of CMS is head of the firm's gambling and sport department. Sources praise him as "well connected and he knows the industry very well." Interviewees appreciate that "he has brought attention to the UK gaming market." He regularly provides strategic, regulatory and commercial advice to clients within the industry, with a particular focus on the horse-racing sector.

Chambers 2019

David Zeffman advises some of the most well-known online gaming operators in the sector on transactions, regulatory issues and contentious cases. Clients value him for his "experienced guidance and great commercial judgement."

Chambers 2019

Relevant experience


  • Gamesys on a range of commercial, regulatory and corporate matters including: the sale of its JackpotJoy and other brands to Intertain for an initial payment of GBP 425.8m; advising on its online gaming partnership with the New Jersey casino Tropicana; the acquisition of Virgin Games; and Gamesys’ partnership with Metric Gaming to launch its sportsbook offering.
  • The Gibraltar Betting and Gaming Association on its legal challenges to the UK Government’s reform of the taxation of remote gambling services and to the introduction of place of consumption licensing and regulation in Britain.
  • GVC with regulatory advice in the context of its bid for bwin.party Digital Entertainment Plc, as well as providing support during the due diligence process running-up to the successful bid made by GVC for bwin.party.
  • Tote Media Limited, (established by Betfred owner and chairman, Fred Done) on its deal that enabled the Great Leighs racecourse to reopen.


  • The ECB on its GBP 1.1bn sale of the UK media rights to English cricket from 2020-2025.
  • ICC on its global media rights tender, bidding and evaluation process for 18 tournaments between 2015 and 2023.
  • The Government on the future funding of British horseracing following the decision of the European Court of Justice in the William Hill v BHB database rights case.
  • FIFA on the worldwide sale of media rights to the 2010 and 2014 World Cups.
  • Setanta Sports, SingTel, Sky Italia, Dentsu and many others on their acquisition of rights to broadcast Premier League football.


  • The launch and/or subsequent operations of many television channels since the launch of satellite television in the 1980s including MTV Europe, VH1, FilmFour, E4, AtTheRaces, Bloomberg and Eurosport.
  • The set up, funding, launch and all activities of the DTT pay television platform Top Up TV.
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  • 1980 - MA Jurisprudence,  Brasenose College, Oxford
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  • Member - The Editorial Board of World Online Gambling Law Report and World Sports Law Report.
  • Member - International Masters of Gaming Law.
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Ex­perts in Gambling Law
22 Jan 19
CMS Gambling Con­fer­ence 2019
European Court of Justice rules in fa­vour of Italy’s Lotto con­ces­sion...
On 19 Decem­ber 2018, the European Court of Justice (ECJ) con­firmed that Italy’s “sole con­ces­sion­aire mod­el” for man­aging the con­ces­sion for its com­pu­ter­ised na­tion­al lot­tery and re­lated fixed-odds nu­mer­ic­al games (the Lotto) and the con­di­tions for its tender.
12 January 2018
CMS Sport
your win­ning team
Gambling Up­date - news and ana­lys­is
Our up­com­ing Gambling Con­fer­ence - 22 Janu­ary 2019   We are ex­cited to an­nounce a par­tic­u­larly out­stand­ing ar­ray of in­dustry lead­ers and leg­al and sec­tor ex­perts for our CMS Gambling Con­fer­ence 2019.   If you would like to at­tend please re­gister here.
Gambling op­er­at­ors re­por­ted to have agreed TV ad­vert­ising re­stric­tions
Last week, the BBC re­por­ted that the ma­jor gambling op­er­at­ors, act­ing through their trade as­so­ci­ation, the Re­mote Gambling As­so­ci­ation (“RGA”), had agreed to lim­it the amount of gambling ad­vert­ising on broad­casts of sports events.
FIFA re­port could trans­form the trans­fer sys­tem
A task force es­tab­lished by FIFA Pres­id­ent Gi­anni In­fantino in Novem­ber 2017 has pro­duced a re­port pro­pos­ing re­forms that would drastic­ally al­ter the nature of the play­er trans­fer sys­tem in world foot­ball (“Re­port”).
Gambling Com­mis­sion pub­lishes new ADR stand­ards for gambling op­er­at­ors
On 1 Oc­to­ber 2018, the Gambling Com­mis­sion pub­lished new guid­ance on al­tern­at­ive dis­pute res­ol­u­tion pro­ced­ures (“ADR”) in the gambling sec­tor (“the 2018 Guid­ance”). The 2018 Guid­ance fol­lows on from the Com­mis­sion’s 2017 re­view of com­plaints pro­cesses in the.
ASA rules against gambling op­er­at­ors for tar­geted in-app ads
On 19 Septem­ber 2018, the Ad­vert­ising Stand­ards Au­thor­ity (“ASA”) pub­lished three new rul­ings in which it con­demned Eaton Gate Gam­ing Ltd t/a Kwiff (“Kwiff”) for ir­re­spons­ible ad­vert­ising prac­tices, and also con­demned WHG (In­ter­na­tion­al) Ltd t/a Wil­li­am Hill.
ASA is­sues three new rul­ings on gambling ads
On 12 Septem­ber 2018, the Ad­vert­ising Stand­ards Au­thor­ity (“ASA”) pub­lished three rul­ings in re­la­tion to ads for Paddy Power Bet­fair plc t/a Bet­fair Casino (“Bet­fair”), Skill on Net Ltd t/a Play­Ojo (“Play­Ojo”) and Gala In­ter­act­ive (Gibral­tar) Ltd t/a Galas­pins.
Gambling Com­mis­sion launches con­sulta­tion on age and iden­tity veri­fic­a­tion...
On 5 Septem­ber 2018, the Gambling Com­mis­sion launched a pub­lic con­sulta­tion on age and iden­tity veri­fic­a­tion pro­ced­ures in on­line gambling, the latest step in the Com­mis­sion’s on­go­ing ef­fort to ad­dress the harms caused by un­der­age gambling.
Ana­lys­is of The De­loitte An­nu­al Re­view of Foot­ball Fin­ance
Last week, De­loitte pub­lished its An­nu­al Re­view of Foot­ball Fin­ance (the "Re­view"), as­sess­ing key de­vel­op­ments in the 2016/2017 sea­son. The com­pre­hens­ive re­port, found here, con­tained sev­er­al com­mer­cial in­sights in­to the state of European foot­ball, es­pe­cially.