He is chairman of Equity Partners, Aman Resorts and London Films. He is a member of the board of directors of the Foundation for Renewable Energy and Environment, Longleat and Acasta Enterprises. He is an advisory board member of Brasilinvest, Societe du Louvre, Stockholm Resilience Centre, Capstar[specify], Centre for Social Justice and the British Olympic Association. He is a member of the Mayors of Jerusalem and Rome's International Business Advisory Councils. He is the first President of the Global Strategy Forum, a trustee of Cool Earth and a patron of Stockholm University.
He has also served on the boards of IMG (2006 - 2013) and the British Paralympics Association, the sports advisory board of Shimon Peres Peace Centre, the advisory board of the World Peace Foundation. He was non-executive chairman and a non-executive director of Starr Managing Agents 2008-2015. He was non-executive chairman of Investcorp Europe 2010-2014. He was a trustee of the Kew Foundation 2010-2016. He chaired the Food, Energy and Water security program at RUSI 2010-2016. He was a member of the Mayor of London’s (Boris Johnson) International Business Advisory Council 2008-2016.
Johan Eliasch holds the degrees of Bachelor of Economics (Stockholm University) and Master of Science (Royal Institute of Technology). He did military service in a specialist unit, the Royal Life Guard (K1) 1980-81.
Johan Eliasch served in the British Government, as the Special Representative of the then Labour Party Prime Minister Gordon Brown on Deforestation and Clean Energy from 2007 to 2010. He served in different roles for the Conservative Party between 1999 and 2007, as Party Deputy Treasurer (2003–07), Special Advisor to the Leaders of the opposition (William Hague and Iain Duncan Smith) and shadow Foreign Secretaries (Michael Howard, Francis Maude and Michael Ancram) (1999–2006). He covered Shadow Foreign Relations (2003–2006) as part of the Shadow Foreign Office team. In 2006 he and Michael Ancram set up Global Strategy Forum, a foreign affairs think tank based in London; he remains President. He was a member of the Austrian President's delegation of State for Trade and Industry 1996-2006. He was Chairman of the Young Conservatives Party in Djursholm, Sweden (1979–1982).
In 2007 he was commissioned by HM Government to undertake an independent review on the role of international finance mechanisms to preserve the global forests in tacking climate change, 'The Eliasch Review' , which was launched by the British Prime Minister Gordon Brown at 10 Downing Street in October 2008. The Eliasch Review has served as a guideline for REDD (Reduced Emissions from Deforestation and Degradation) as part of the international climate change convention.
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- Maurice Chittenden, "It's my rainforest now. No logging", The Sunday Times (13/09/2006).
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- Peel, Lilly (16 October 2008). "Business big shot". The Times. London. p. T43. Factiva T000000020081016e4ag0003r. Retrieved 22 August 2009.