CMS Cameron McKenna

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CMS Cameron McKenna LLP
CMS Cameron McKenna logo.svg
Headquarters London, United Kingdom
No. of offices 17
No. of lawyers 904 (2011/12)[1]
Major practice areas General practice
Key people Stephen Millar
(Managing Partner)
Penelope Warne
(Senior Partner)[2]
Revenue £227.6 million (2011/12)[1]
Date founded 1 May 1997 (London)
Company type Limited liability partnership

CMS Cameron McKenna LLP, trading as CMS, is a multinational law firm headquartered in London, United Kingdom. It has over 200 partners and 17 offices across Europe, the Middle East, North America and Asia.

CMS Cameron McKenna is a member of the CMS organisation of law firms. When considered as a single firm, CMS is one of the ten largest law firms in the world (by number of lawyers: American Lawyer 2014).


The origins of the firm date back to 1779 and the law practice of T Hewitt.

In 1997 Cameron Markby Hewitt merged with fellow City of London law firm, McKenna & Co, to form Cameron McKenna (renamed CMS Cameron McKenna in 1999).[3] The firms of Cameron Markby and Hewitt Woollacott & Chown had merged in 1989 to become Cameron Markby Hewitt. Prior to that Cameron Kemm Norden of New Street, London, EC2, off Bishopsgate, merged with Markbys of London Wall, either in 1980 or 1981. After 17 years at Mitre House, near the Barbican, the firm moved into its Cannon Place headquarters in July 2015, situated above Cannon Street Station.

Henry Markby, a name partner in legacy firm Cameron Markby Hewitt, is alluded to (usually in an unflattering manner) in a number of Oscar Wilde's plays, most notably in The Importance of Being Earnest, when Lady Bracknell says that her solicitors are Markby, Markby and Markby.

Markby, who was President of the Law Society of England and Wales in 1887, had fallen out with Wilde, a former friend, for reasons unknown.

The partnership incorporated as a limited liability partnership in 2005.

In January 2008, CMS Cameron McKenna expanded its European presence through the acquisition of the Romanian law firm Hayhurst Robinson.[4]

In December 2013 it was announced that CMS Cameron McKenna would merge with the Edinburgh-headquartered law firm Dundas & Wilson.[5][6] The merger completed on 1 May 2014.[5][6]

In October 2016, CMS Cameron McKenna announced that it will merge with UK law firms Nabarro and Olswang to create the world's sixth largest law firm by headcount. The merger is due to complete in May 2017. CMS Cameron McKenna will be renamed to CMS Cameron McKenna Nabarro Olswang LLP, and will trade under the name CMS.[7]


CMS Cameron McKenna provides advice across all types of commercial law; banking and finance, competition, corporate and M&A, dispute resolution, employment & pensions, environment, immigration, intellectual property, private equity, public procurement, real estate and tax.

CMS Cameron McKenna's services are concentrated in eight industry sector groups; consumer products, energy, hotels & leisure, infrastructure & project finance, insurance and funds, lifesciences, real estate & construction, and technology, media & telecommunications.

Practice Areas

The firm specialises in the following areas:

Sector Groups

The firm also operates along sector lines, focusing on the following industry groups:

  • Consumer Products
  • Energy
  • Financial Services and Institutions – Banks, Insurers, Investment Business and Private Equity
  • Hotels & Leisure
  • Infrastructure & Project Finance
  • Lifesciences
  • Real Estate & Construction
  • Technology, Media & Telecommunications (TMT)

CMS Legal Services EEIG[edit]

CMS Cameron McKenna is a founding member of the international CMS Legal Services EEIG organisation of law firms, which was established with the objective to create a professional multi-jurisdictional legal and tax service organisation, headquartered in Europe. CMS currently has 3,000 legal and tax advisers across 59 offices, and boasts deep local expertise coupled with the most extensive footprint of any firm in Europe. The organisation's firms are branded with the preface 'CMS' as part of their respective names but remain independent businesses. The acronym's letters derive from two of the founding firms, Cameron McKenna and Sigle (now CMS Hasche Sigle). CMS is organised as a European Economic Interest Grouping (EEIG) and is managed centrally by an executive committee based in Frankfurt, Germany.

External links[edit]

See also[edit]


  1. ^ a b "CMS Cameron McKenna partners put extra £7.7m into firm in 2011/12". The Lawyer. 21 January 2013. Retrieved 13 December 2013. 
  2. ^ "General Contacts". CMS Cameron McKenna. Retrieved 14 December 2013. 
  3. ^ "Comment and Analysis: Two plus two makes five at Cameron McKenna?". The Lawyer. 28 July 1998. Retrieved 13 December 2013. 
  4. ^ "News and the city: East Europe mergers, offices in Germany and moves to divorce". Solicitors Journal. 3 February 2006. Retrieved 13 December 2013. 
  5. ^ a b "Dundas and Wilson to merge with London-based CMS". BBC News. 12 December 2013. Retrieved 13 December 2013. 
  6. ^ a b "CMS Cameron McKenna partners vote yes to Dundas & Wilson takeover". The Lawyer. 12 December 2013. Retrieved 13 December 2013. 
  7. ^ "CMS, Nabarro and Olswang Combine to Create 6th Largest Law Firm in the UK and 6th Largest Globally". 10 October 2016. Retrieved 27 October 2016.