James Sibony and Julian Hantrais founded Lennox Partners in 2009. Their combined track record includes:

  • 40 years of collective experience including UBS, HSBC, GE Capital, CIBC, Hambros, PWC, Ernst & Young and Challenger Financial Services
  • Extensive transaction credentials in energy and infrastructure
  • Advised numerous blue chip financial and corporate clients on major acquisitions, disposals and capital raisings
  • Strong relationships with a network of specialist due diligence contractors and local experts.
  • Broad geographic coverage of UK and Continental Europe, including through strategic alliances with local firms in Germany, France, the Netherlands, Italy and Spain.
James Sibony

James Sibony

James Sibony has almost 20 years of experience in financial services as a principal investor, asset manager and investment banker. The last 15 years have been focused on the energy and infrastructure sector at Lennox Partners, UBS, Ernst & Young and the Challenger Financial Services Group. As a Director of Challenger, a major Australian firm, James established their London office in 2005 and led several substantial acquisitions until he founded Lennox Partners in 2009. Challenger invested over A$ 1.5 billion of equity in the UK and European infrastructure markets including significant interests in Southern Water, LBC, Inexus and Welcome Break.

James was on the board of several of Challenger's investee companies. In 2007, James originated and executed the sale of a £125 million stake in the Challenger Infrastructure Fund to a financial investor. By 2009, realised investments of Wales & West Utilities, Northern Gas Networks and Arqiva had generated IRRs in excess of 20%.

Prior to Challenger, James worked for UBS from 1996 and 2001 in their the Equity Capital Markets Group and in the Utilities M&A team. James joined Ernst & Young in 2001 where he worked on numerous Corporate Finance transactions in the Energy and Utilities sector until 2005.


Julian Hntrais

Julian Hantrais

Julian Hantrais has over 20 years' structured and leveraged financing experience, originating, evaluating, structuring and closing major transactions. He is a founding partner of Lennox Partners.

Prior to founding Lennox Partners, Julian was with GE Capital in London for 10 years in a number of roles in Structure and Leveraged Finance principally investing off GE's balance sheet in infrastructure, Private Equity and leverage loans. Transactions include investing in Eurotunnel distressed debt, committing capital to 3i, Terra Firma & Star Capital Private Equity funds and originating and participating in over 50 leverage loan transactions.

Prior to GE Capital Julian was at CIBC and Hambros Banks with a focus on arranging and investing in US cross-border tax based leasing transactions in the Infrastructure and Telecommunications sectors. In particular Julian was part of the team that created the Qualifying Technological Equipment ("QTE") lease product and successfully originated and closed transactions for Irish Telecom, Belgacom, Sonera and France Telecom. Julian started his career as a graduate trainee with Price Waterhouse Managements Consultants.


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