Ecofys advisor in Top 100 Eco Influencers on Twitter

01 May 2015

A new ranking of the top 100 Eco-Influencers from Corporate Knights and Brandwatch highlights those ringing the bell to wake humanity to potentially the greatest existential threat of the coming age: climate change. The ranking looks at the most prolific Twitter accounts advocating environmental issues, and includes big names like Bill McKibben, Bill Gates, Michael Bloomberg, Richard Branson and former New Zealand Prime Minster Helen Clark. Also on the list is Ecofys’ sustainability expert Kees van der Leun.

Advocacy to protect the environment has grown in pace over recent years, with bigger and bigger names getting involved in what is fast becoming the greatest issue of our times, as US President Barack Obama recently says, "Today, there's no greater threat to our planet than climate change, climate change can no longer be denied, or ignored." A recent Ecofys analysis highlights, unfortunately, that contrary to the rhetoric, the US is committing itself only to the barest minimum needed to resolving the issue.

Top 100 Eco-Influencers on Twitter

With the development and evolution of broadcast since the early 20th century, it has become ever easier to communicate and disseminate ideas and issues. Twitter is the latest in a long line of tools through which it is possible to reach a broad audience with the push of some buttons. To map out the top 100 Eco-Influencers on Twitter, Corporate Knights and Brandwatch – the social media analytics company – banded together to release the ranking.

The ranking of the top thought leaders was developed from an analysis of over 100,000 twitter accounts that actively post on green issues – with both mainstream and professional people included in the last. Each was awarded a “Green Score” on a scale of 1 to 100, calculated according to three different measurements: Authority, Audience and Activity.

Bill McKibben, the founder of, has been named the most prominent Eco-Influencer, followed closely by Guardian columnist George Monbiot. Environmental activist and artist Irina Tikhomirova comes in third and Christiana Figueres, executive secretary of the UN Framework Convention on Climate Change (UNFCCC) ranks fourth on the list. The list also include some well-known names, like billionaire businessmen Bill Gates, Michael Bloomberg, Tom Steyer and Richard Branson, and former politicians including, New Zealand Prime Minister Helen Clark and US vice president Al Gore.

Kees van der Leun - Ecofys

Also on the list, at number 39, is Kees van der Leun, Chief Commercial Officer of Ecofys, a sustainability consulting firm. Van der Leun has spent his professional career investigating the issue of sustainability around energy, he was Ecofys’ third employee and has spent 29 years working for the firm. His work includes the acclaimed ‘Energy Report’ and ‘Wedging the Gap’ and dozens of publications that have shaped the green and climate change landscape. Not so long ago Van der Leun was also ranked in the UK Guardian’s top-10 energy Tweeters.


Rapid growth sees Quantum Advisory promote trio of partners

18 April 2019

Three senior level consultants have been boosted to the rank of Partner at Quantum Advisory, as the firm works to meet heightened levels of client demand. Aled Edwards, Amanda Burdge and Chris Heirene become Partners as long-time Quantum member Rob Davies retires in May after 15 years as a Partner at the firm.

Founded in 2000, Quantum Advisory provides pension and employee benefits services to employers, scheme trustees and members, with five offices across the UK. The firm has enjoyed exponential growth in recent years, following a number of major client wins and booming demand for its services. It opened a new office in Bristol in 2016 to service the South West and in 2017 relocated its Cardiff office to a larger site within the Welsh capital to house the increased workforce. More recently, Quantum relocated its Amersham, Birmingham and London offices to more spacious premises in the centre of both cities to cope with demand.

The financial services consultancy, which employs 115 people across the UK, has promoted three senior team members to Partner, as part of its wider growth plans. The firm has moved Aled Edwards from Principal Consultant & Actuary, while Amanda Burdge has ascended from Principal Investment Consultant. Chris Heirene, former IT Manager, has also joined the ten current Partners at Quantum.

Aled Edwards most recently managed the actuarial team within Quantum’s Cardiff office as well as providing technical training for all staff. He boasts more than 17 years of pensions experience. He started his career as an Actuary at Jardine Lloyd Thompson’s Bristol wing, before joining Quantum in 2011. Edwards is also the President of the Welsh Actuarial Society (WAS), which supports actuaries and actuarial students living or working in Wales.

Rapid growth sees Quantum Advisory promote trio of Partners

Amanda Burdge joined Quantum’s team in 2001, as one of the fledgling firm’s first employees. Most recently she was a Principal Investment Consultant with the firm, and with more than a quarter of a century’s experience in the sector, she is responsible for providing investment advice to many of Quantum’s key clients with both defined benefit and defined contribution schemes. Prior to her time with Quantum, Burdge spent two years as a consultant with SBJ Benefit Consultants (now Capita), and three years with Tesco Pension Trustees. She currently sits on the Regulation Committee for the Pensions Management Institute.

Chris Heirene initially worked with Quantum as an IT Consultant with Teamwork Technology Services and then UES for over five years, before finally joining the firm itself in 2011. He is now responsible for Quantum’s IT systems across all of its offices, including the network and core server infrastructure which supports the business. Heirene is heavily involved in utilising IT to improve and build upon the processes in place throughout Quantum.

David Deidun, Partner at Quantum Advisory, said of the promotions, “This is a very exciting time for Quantum. The recent round of promotions fully recognise the hard work and dedication shown by the three, all of whom go above and beyond for the company. I’ve no doubt that Aled, Amanda and Chris will settle into their new roles with ease and look forward to working together to grow Quantum even further.”

The news comes as Rob Davies retires in May, after spending fifteen years as a Partner at Quantum. A qualified actuary, Davies was instrumental in setting up Quantum’s Investment Division, specialising in aiding clients with their investment strategies. He will remain with the company on a part-time consultancy basis, while working with several clients in the Fiduciary Manager area.