In March 2015, Browne was appointed Executive Chairman of L1 Energy, an energy investment vehicle co-owned by Russian billionaire Mikhail Fridman.
In December 2017, it was reported that Lord Browne had led negotiations to create a new joint venture between L1 Energy and BASF, merging their respective oil and gas businesses to create Wintershall Dea.

Lord Browne was the UK Government Lead Non-Executive Director until January 2015.
His remit was to work with Secretaries of State to appoint non-executives to the board of each government department.

He was President of the Royal Academy of Engineering from 2006 to 2011.
He was elected a Fellow of the Royal Society in 2006.
In 1998, he was knighted by Queen Elizabeth II and in 2001 named by the House of Lords Appointments Commission as one of the "people's peers" taking the title Baron Browne of Madingley, of Cambridge in the County of Cambridgeshire, and becoming a crossbencher in the House of Lords.
In 2000 he was the recipient of the FIRST Responsible Capitalism Award.
He was appointed a Trustee of the Tate Gallery on 1 August 2007 and Chair of the Trustees in January 2009.
In November 2009 it was announced that Lord Browne would chair an independent review into university tuition fees which reported in October 2010.
In December 2009 the Review panel revealed that the average graduate premium in the UK, the increase in lifetime salary of a degree compared to 2 A levels, had fallen to just £100,000 (before debt).
In June 2010 he was appointed as the Government's Lead Non-Executive Director, charged with recruiting business leaders to reformed departmental boards.

In October 2010 it was announced that Lord Browne had been appointed chairman of the advisory board at Stanhope Capital as the asset manager gears up for international expansion.
The former chief executive of BP will help advise on attracting investment from charities and endowment trusts, which at present make up a small number of the Stanhope's total clients.

He is Chairman of the International Advisory Board of the Blavatnik School of Government at the University of Oxford, and Chairman of the Trustees of the Queen Elizabeth Prize for Engineering.
He is Chairman of the Francis Crick Institute, Chairman of the Donmar Warehouse Theatre, and since September 2017 has served as Chairman of the Courtauld Institute of Art, following the end of his tenure at Tate.
He is also a Trustee of the Holocaust Educational Trust.

Lord Browne sits on the board of directors of Pattern Energy and IHS Markit, and is a member of the advisory boards of Edelman, Schillings, and the big data technology companies Afiniti, Kayrros and Windward.
Between 2015 and 2020, he served as non-executive Chairman of Huawei UK.
In March 2015, Browne was appointed Executive Chairman of L1 Energy, an energy investment vehicle co-owned by Russian billionaire Mikhail Fridman. In December 2017, it was reported that Lord Browne had led negotiations to create a new joint venture between L1 Energy and BASF, merging their respective oil and gas businesses to create Wintershall Dea.
Lord Browne was the UK Government Lead Non-Executive Director until January 2015. His remit was to work with Secretaries of State to appoint non-executives to the board of each government department.
He was President of the Royal Academy of Engineering from 2006 to 2011. He was elected a Fellow of the Royal Society in 2006. In 1998, he was knighted by Queen Elizabeth II and in 2001 named by the House of Lords Appointments Commission as one of the "people's peers" taking the title Baron Browne of Madingley, of Cambridge in the County of Cambridgeshire, and becoming a crossbencher in the House of Lords. In 2000 he was the recipient of the FIRST Responsible Capitalism Award. He was appointed a Trustee of the Tate Gallery on 1 August 2007 and Chair of the Trustees in January 2009. In November 2009 it was announced that Lord Browne would chair an independent review into university tuition fees which reported in October 2010. In December 2009 the Review panel revealed that the average graduate premium in the UK, the increase in lifetime salary of a degree compared to 2 A levels, had fallen to just £100,000 (before debt). In June 2010 he was appointed as the Government's Lead Non-Executive Director, charged with recruiting business leaders to reformed departmental boards.
In October 2010 it was announced that Lord Browne had been appointed chairman of the advisory board at Stanhope Capital as the asset manager gears up for international expansion. The former chief executive of BP will help advise on attracting investment from charities and endowment trusts, which at present make up a small number of the Stanhope's total clients.
He is Chairman of the International Advisory Board of the Blavatnik School of Government at the University of Oxford, and Chairman of the Trustees of the Queen Elizabeth Prize for Engineering. He is Chairman of the Francis Crick Institute, Chairman of the Donmar Warehouse Theatre, and since September 2017 has served as Chairman of the Courtauld Institute of Art, following the end of his tenure at Tate. He is also a Trustee of the Holocaust Educational Trust.
Lord Browne sits on the board of directors of Pattern Energy and IHS Markit, and is a member of the advisory boards of Edelman, Schillings, and the big data technology companies Afiniti, Kayrros and Windward. Between 2015 and 2020, he served as non-executive Chairman of Huawei UK.
John Browne, Baron Browne of Madingley