We are pleased to share that we have partnered with environmental strategist Dr. Jayne Manley, founder of Sunnyhill Consultants, to embed environmental best practice across our business and bring a stronger environmental perspective to our client transformation work.
Manley will work with Differentis’ leadership and consultancy teams, reviewing strategy, proposals, research, and internal decision-making.
She will also help integrate environmental considerations into our Intelligent Transformation approach, so we inform decisions from the outset rather than being treated as a later compliance exercise.
Through Sunnyhill Consultants, Manley advises and mentors senior teams across spatial and technology strategy, land use, and environmental resilience, recently working with clients from the government, charity, and company sectors, and increasingly on the environmental implications of AI and digital infrastructure.
She brings more than 30 years’ experience across environmental charities and public bodies, including 12 years as Chief Executive of Earth Trust and previous strategic roles at Plantlife International and English Nature.
Through this work, she advises senior teams on the systemic pressures, environmental constraints, and emerging policy shifts that reshape competitive advantage, including how the physical footprint of technology, from data centres to supply chains, intersects with land use, local resilience, and public support.
The partnership is designed to accelerate our commitment to environmental best practice at a point when the environmental consequences of technology decisions, from data centre energy and water use to procurement, planning and supply chain resilience, are moving up the boardroom agenda.
What was said…
Dr. Jayne Manley said: “Differentis stood out to me because it is forward-thinking about both the potential of technology and the responsibility that comes with it. The team recognises that choices being made now about data, infrastructure and digital systems will shape environmental footprints for years to come. That willingness to look at the whole picture is why I wanted to work with them.
“We are at a pivotal point. Demand for technology will continue to grow, while scrutiny of its environmental impact is intensifying. The answer is neither to ignore that footprint nor to stop progress, but to understand it and build better solutions from the outset.
“Over the coming months, I will work with Differentis to embed that thinking across its strategy, proposals and client conversations, making environmental best practice a practical part of transformation.”
The agreement formalises a relationship developed through Differentis’ flagship events. After first meeting at Women in Change, Manley spoke at DiffExpo25 in September 2025 and returned for DifFest this summer, where she delivered a keynote on regenerative approaches to technology and intelligent transformation, challenging business and technology leaders to think more broadly about sustainability, responsibility and the environmental pressures attached to change.
Differentis holds ISO 14001 certification for environmental management alongside ISO 9001, ISO 27001, and Cyber Essentials. Differentis also became one of the first consultancies in the UK to obtain ISO42001. The partnership is intended to build on that foundation by embedding environmental thinking more deeply into the firm’s strategy and services.
Dave King, Managing Director at Differentis, said: “Jayne has challenged our thinking since she first contributed to DiffExpo25, so formalising the relationship is a natural next step. She brings the experience and constructive challenge we need to ask harder questions earlier — of ourselves, our propositions, and the supply chains behind the work we deliver for clients.
“Organisations have hard ESG commitments to meet, and over the coming years they will be audited and assessed against them. Yet, with the rapid growth of AI and the historic absence of IT from many ESG conversations, too many businesses are sleepwalking towards failure. Intelligent Transformation means creating change that holds and that means environmental impact cannot sit at the edge of the conversation as a separate workstream or a late-stage compliance exercise.
“Jayne will help us embed this thinking into how we advise, how we challenge clients and how we hold ourselves to account.”
The partnership will also support a planned programme of environmental reports over the next 12 months, beginning with a paper examining environmental pressure points across the technology sector building on Manley’s existing research into the environmental impact of UK data centres, co-authored with Dr Ashwin Mehta and Dave King.
