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Work 020 7209 2000
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Alex Denoon

Work 0207 209 2014
Marriott Harrison LLP

Work Department

Life Sciences & IP


Partner. Alex is an experienced lawyer who advises clients in the life sciences sector, primarily in relation to regulatory and IP matters. His legal advice is also informed by significant in-house experience including as General Counsel of a biopharmaceutical company. Alex is described as ‘a straight-talking, commercially astute technology specialist who is always willing to take a view’ and who delivers ‘out-of-the-box solutions'.


Admitted as a Solicitor in Australia in 1995, working in the IP Department at Freehill Hollingdale & Page until 1998; General Counsel and Company Secretary at Biotech Australia 1998 – 2001; General Counsel and Company Secretary at  Redfern Broadband Networks 2001-2003; Special Adviser to the Board at Silverbrook Research 2003 – 2004. Moved to the UK and joined Clifford Chance as a Senior Associate: 2005-2009. Founded Denoon Legal in 2009 building “an outstanding life sciences boutique” (Legal 500). Joined Marriott Harrison as a partner in April 2017


Bachelor of Science (Human Genetics) and Bachelor of Laws: University of NSW, Sydney Australia 1994.

Admitted as a solicitor in (1) England and Wales and (2) New South Wales, Australia.

London: TMT (technology, media and telecoms)

Pharmaceuticals and biotechnology

Within: Pharmaceuticals and biotechnology

Marriott Harrison LLPĀ focuses predominantly on regulatory matters, and provides 'first-rate response times' and 'value for money'. Alexander Denoon has 'excellent commercial judgement' and is 'extremely knowledgeable on non-transactional life sciences law'.Ā Julian HitchcockĀ is also recommended and highly experienced in regulatory issues.

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