Jessamy Gallagher > Linklaters LLP > London, England > Lawyer Profile

Linklaters LLP

Work Department

Corporate, Funds, Infrastructure.


Jessamy is a corporate partner based in London with a leading reputation for her expertise in international public and private M&A and joint ventures as well as corporate governance. She leads the firm’s Global Infrastructure Sector and has an outstanding market reputation for transactions in that market. Jessamy advises a number of the firm’s FTSE listed clients as well as a wide range of global pension, infrastructure and fund/asset manager clients. Jessamy also leads the firm’s global relationship with UBS, working closely with its investment bank, asset management and wealth management businesses.  

Jessamy heads up a senior team of partners who are focused on ensuring that our global fund clients receive an integrated service across the firm’s network, with access to the very best technical and commercial advice and to our unparalleled breadth and depth of expertise across sectors, geographies and legal practice areas.  She is also a member of the Partnership Board, the firm’s governance body. 

Jessamy’s experience includes advising National Grid on its divestment of a majority stake in its £14 billion UK gas distribution business to a Macquarie-led consortium, the largest ever energy and infrastructure deal in the UK; Rio Tinto on its defence of the hostile takeover made by BHP Billiton and its US$15bn rights issue, the first rights issues by a dual listed company; NSW Treasury Corporation (T Corp) and SunSuper on their USD 310m disposal of an aggregate 35% interest in LBC Tank Terminals; Universities Superannuation Scheme on its acquisition of a 10.9% stake in Thames Water; AustralianSuper on two separate transactions to acquire a combined 67% interest in the £4 billion Kings Cross Central development project; Anglian Water on a recommended cash offer by Osprey Acquisitions (IFM Investors, CPPIB, Colonial First State and AMP Capital); PSP on the dissolution of its infrastructure joint venture with GIC, Isolux, involving the disposal of toll road and energy assets in North America, Brazil, India, Mexico and Spain; Allianz, AIMCCo, Hastings Funds Management and EdF Invest on their successful consortium bid for Porterbrook Trains; IFM Investors on its acquisition of a strategic stake in Manchester Airport Group (MAG) and the subsequent successful bid by MAG for London Stansted Airport; and Macquarie Infrastructure and Real Assets, IFM Investors, CPPIB and AMP Capital on the disposal of Wales & West Gas Networks to CKI.


Associate Freehills, Sydney 1999-2000; Associate, Corporate Department Linklaters, London 2001-02; Managing Associate 2002-08; Partner Linklaters, London 2008 to date. Jessamy was also seconded to the Transactions Legal team within UBS Investment Bank during 2005.


University of Sydney (1994 Bachelor of Arts Hons (I), university medal; 1996 Bachelor of Law Hons (I)).

Lawyer Rankings

London > Projects, energy and natural resources > Infrastructure

(Hall of Fame)

Jessamy GallagherLinklaters LLP

The well-regarded infrastructure practice at Linklaters LLP provides expertise in M&A, financings and project development. Particular specialisms for the team include transport sector work and advising governments and regulators in public sector matters. Stuart Rowson is global co-head of the firm’s infrastructure sector. Also active in the area are corporate partner Jessamy Gallagher and Ian Andrews, who focuses on infrastructure.

London > Corporate and commercial > M&A: upper mid-market and premium deals, £500m+

(Leading individuals)

Jessamy GallagherLinklaters LLP

Linklaters LLP routinely handles a significant volume of market-leading transactions on behalf of many of the world’s foremost corporates, private equity houses, and investment banks. Over the past year, the team has advised on some of the most high-value UK  and global deals, working with blue-chip clients from the worlds of consumer goods, TMT, energy, financial services, natural resources, and healthcare on layered, multi-jurisdictional transactions. The team is going through some internal changes, with heavyweight Charlie Jacobs retiring from the firm to take on a role at JP Morgan, while former corporate head  Aedamar Comiskey has stepped into his shoes as senior partner.  Simon Branigan is now head of corporate, leading a team which also includes Jessamy Gallagher , who jointly leads the firm’s global infrastructure offering,  public M&A partner Nick Rumsby , and James Inglis. Other key names to note include Derek Tong , who heads up the UK technology sector team and Fionnghuala Griggs , who serves as co-head of the firm’s global fintech offering and is noted by clients for her ‘impressive’ acumen in M&A and consortium transactions. Jane Cai is recommended for her cross-border experience in industrials, extractives, and telecoms.