Amy Harder is executive editor of Cipher by Breakthrough Energy. Amy is one of the top national energy and climate change reporters in the country, having built up a reputation of being a uniquely balanced and influential journalist with respect across the spectrum. She joined Breakthrough Energy in early 2021 to help launch Cipher, a publication covering the opportunities and challenges of the energy transition.

Marga Hoek is a member of Thinkers50, she is that rare combination: a true visionary on sustainable business and capital and a successful, innovative business leader who understands and applies the commercial realities of business. Operating at the highest level with ministers and presidents, Marga is a global voice for G20, G7 Climate Change and Cop 23 and a regular contributor for prestigious, global media like Forbes Magazine, Fortune and The Huffington Post. Her latest book The Trillion Dollar Shift, on the business opportunities of the Sustainable Development Goals, received an international, gold medal.

Trevor Williams served as Chief Economist at Lloyds Bank for over a decade. Now an author, academic and consultant, he analyses the key trends and policies that shape the economy and markets. From energy and climate to how companies use their data to understand the wider economy, he brings clarity and relevance to an often complex and abstract field.

Jenny Radcliffe is a “people hacker” — or a mix of shrewd behavioral scientist, master negotiator, and actor. Known for talking her way into high-security banks and even the Tower of London, Jenny is a world-renowned coach, consultant, and speaker who brings something different to meetings focused on culture, social intelligence, sales, negotiation, and interpersonal relationships. A regular keynote at major security events — including Infosec, Rant, DISA, Nordic IT Security, ICS2, Trend Micro, Cisco, NTT, Bright talk, and Cyber Security Week — and a multiple-times TEDx contributor, Radcliffe has been a guest expert on security, scams and social engineering for various television and radio shows as well as online media. She helps clients understand how to better read people and social cues, use subtle tactics of persuasion, open up avenues of conversation previously shut, and understand and shield against their own vulnerabilities.

When organisations and individuals want to better their understanding of the latest technology trends and their impact on business and society, Greg Williams is among the first names they seek out for thought leadership. As the deputy global editor for WIRED magazine and a widely respected strategic forecaster, Williams has exclusive lines of communication to the innovators, thinkers, scientists, entrepreneurs, and creatives who are changing the world and draws upon his conversations with them to publish insightful and influential pieces on innovation, technology, and the ideas that are reshaping our world in real time.

With more than a decade working at the heart of the technology industry, Dex Hunter-Torricke has managed communications for some of the most-influential and admired Silicon Valley leaders and corporations of our day. In his daily work, Dex plays a critical role in writing the next chapter on science, tech, the economy, and society across the globe, and spearheads efforts to bring the stories of how the world is being moved forward to light. From 2012-2016, he led the executive communications team at Facebook and served as personal speechwriter for Mark Zuckerberg. He then went on to join SpaceX as senior director of communications. He later served as the VP Global Communications & Public Engagement for the Oversight Board for Meta, the independent body that makes decisions on Facebook and Instagram’s most challenging content issues. Dex takes audiences into Facebook’s boardroom, Musk’s open-concept cubicle, the famed Googleplex, and finally to the UN itself to share lessons on what it takes in today’s environment to build highly effective internal teams, how to use storytelling in modern communications, and what to make of the steady transition from local to global that’s unfolded over the past decade.

Gavin Patterson is the president and chief revenue officer of Salesforce.com, Inc., leading the CRM company's global sales organization. He previously served as Chief Executive, BT from 2013-19. During his tenure, Patterson completed the UK rollout of the superfast fibre and started the deployment ultrafast fibre. He led the £15billion acquisition of EE, launched BT Sport, expanded BT’s cyber security practice and championed BT’s social purpose agenda. He joined BT in 2004 as MD Consumer and joined the board as CEO BT Retail in 2008. Prior to BT, he spent four years at Virgin Media and nine years at Procter & Gamble. Patterson is a Non-Executive Director at British Airways plc and a Trustee of the British Museum. He graduated from Cambridge University with an MEng in Chemical Engineering.

Roger Harrabin is one of the media’s most influential voices on the environment, energy and climate change. He is Energy and Environment Analyst for the BBC, where he has broadcast for more than 30 years. Roger has been a global pioneer in environment reporting. He was founder presenter of the BBC environment programme Costing the Earth and has won many awards for his work in radio and TV. His quest for impartiality led him to broadcast two three-part series on Radio 4 tackling the risks and uncertainties in climate science and technology. His reporting on new topics has often been trend-setting – he was, for instance, the first mainstream reporter to highlight the central role that energy would play in the environment. He has interviewed many influential figures including Margaret Thatcher, Tony Blair, Ban Ki Moon, Al Gore and Sir David Attenborough.

Graham Cluley is an award-winning security blogger, researcher, and public speaker. He has been a well-known figure in the computer security industry since the early 1990s when he worked as a programmer, writing the first ever version of Dr. Solomon's Anti-Virus Toolkit for Windows.

Sir John Scarlett KCMG OBE served as chief of the British Secret Intelligence Service (SIS or MI6) from 2004–2009. Over his more than 20 years at MI6, he served in Nairobi, Paris, and twice in Moscow, as well as several assignments in London covering the Middle East, Africa, Eastern Europe, and the Soviet Union. In 2001 he retired from SIS on appointment as chairman of the Joint Intelligence Committee (JIC) in the Cabinet Office. He rejoined SIS as head of the service in 2004. Scarlett is an expert on geopolitics as well as crisis management, global security, and leadership.

Robert Hannigan is a leading authority on cyber security, cyber conflict and the application of technology in national security. He is an international speaker and contributing author on cyber security topics. Currently, Robert serves as Chairman of BlueVoyant International, a global cybersecurity services firm. He is a Senior Adviser to McKinsey & Co and advises a number of international companies on cyber security. Prior to moving into the private sector, Robert served as Director of GCHQ, the UK’s largest intelligence and security agency. Robert has a long history of involvement in cyber security and technology, having drawn up the UK’s first Cyber Security Strategy and outlined the government’s ambition of making the UK ‘the safest place to live and do business online’. He set up the UK’s National Cyber Security Centre as part of GCHQ and launched the active cyber defense program for the UK in 2016. He was responsible with military colleagues for the UK’s national offensive cyber programme.

One of the most dynamic minds on the frontlines in the battle to keep the digital sphere safe for all, Tarah Wheeler is an information security executive, white hat hacker, and social scientist who equips organizations and individuals with the knowledge and tools they need to safeguard their data and reputations. Her experiences as a cybersecurity executive, advisor, and thought leader extend across various industries and institutions — from technology and commerce to government and academia. In her daily work, she develops and implements comprehensive cybersecurity programs at some of the world’s most important and complex organizations, advises on global cyber policy, and serves as a leading voice for the advancement of women in tech.