Research from Mitie’s latest Net Zero Navigator report shows that organisations achieving the greatest decarbonisation progress are those embedding net zero into their core business strategy, rather than treating it solely as a compliance obligation.  Drawing on insight from sustainability leaders, the report highlights an increasing emphasis on energy resilience, operational compliance and long-term cost stability to enhance the commercial benefits of decarbonisation for organisations.

Where private capital meets clean power ambition

Despite nearly three quarters (71%) of sustainability leaders reporting increasing difficulty in accessing finance for decarbonisation over the past year, in part due to a decrease in public sector funding schemes, the availability of private capital is increasing. The private sector is expected to contribute between 65% and 90% of the £40 billion investment required each year to meet the UK’s 2030 clean power target which will unlock new opportunities for organisations which can demonstrate a strong business case.

Falling costs for solar, battery and other renewables is increasing investment appeal, and so robust business cases, coupled with evidence of compliance, remain essential. Yet over a third (33%) of leaders say they need better access to data and reporting technology to support compliance and risk management amid evolving energy efficiency regulations. Additionally, recent schemes such as the National Energy System Operator’s Demand Flexibility Service will support investment in renewable technologies, with almost half (49%) of respondents planning to invest in on-site battery storage in 2026.

Water is the one to watch in 2026

Despite the potential for private sector funding, significant barriers remain to achieving net zero ambitions, including water scarcity, delays in securing grid connections and ongoing skills shortages. In 2026, water will require the same level of strategic focus as energy. As costs rise and regulation tightens, switching service providers could deliver more competitive pricing, yet one in twelve sustainability leaders (8%) remain unaware of UK water reduction targets. Organisations can begin addressing this by reviewing their water footprint through measures such as smart metering and by making simple operational changes, including reducing chemical use or implementing water-efficient processes.

Mitie’s decarbonisation experts share top tips on how to navigate the fast evolving decarbonisation landscape, including:

• Creating high-performing buildings: To meet new EPC standards, organisations should identify steps to improve the EPC rating of their building and sustainability of their operations, starting with the quick wins and building strong business cases for investment for larger projects
• Increasing investment in energy storage: With grid reform, clean energy projects are expected to accelerate, driving investment in on-site energy and battery storage enabling organisations to store and use clean energy as an effective way to offset price hikes as well as creating commercial opportunities including the resale of power back to the grid during periods of peak demand
• Evolving net zero strategies: Business strategies must see net zero as being about building resilience and no longer purely about carbon and climate. To stay agile, organisations need stronger digital tools to ensure compliance and access to green financing, including exploring private finance partnerships to unlock funding as public schemes scale back
• Accelerating green-skills uptake: Net zero is now as much about creating resilient, ‑future ready organisations as it is about cutting carbon. A rapid expansion of workforce training and upskilling is needed to plug the green-skills shortage which threatens to slow progress

This year’s report also includes insights from Dr Rhian-Mari Thomas OBE, Chief Executive Officer of the Green Finance Institute.  Dr Thomas highlights that a “wait-and-see” approach wields higher risk than engaging proactively in the decarbonisation agenda and could lead to higher long-term costs, compliance challenges and operational disruption.

Mark Caskey, Managing Director, Projects, Mitie, said: “As decarbonisation efforts accelerate now is the time for organisations to take decisive action and secure investment. Our findings show that integrating net zero projects into core business operations delivers real economic and energy security benefits. Organisations can stay ahead of the curve by investing in energy storage, creating better-performing buildings, and managing water usage as closely as their energy resources.”

The full Net Zero Navigator report can be found at: https://www.mitie.com/planzero/net-zero-navigator-2026

Notes to editors

Research conducted by Opinium on behalf of Mitie from 16 October 2025 to 22 October 2025. Survey of 100 senior managers with responsibility for corporate sustainability at companies with over 1,000 employees.

About Mitie: The Future of High Performing Places

Founded in 1987, Mitie employs 84,000 colleagues and is the leading technology-led Facilities Management, Transformation and Compliance company in the UK. We are a trusted partner to around 3,000 customers across the public and private sectors, working with them to transform their built estates, and the lived experience for their colleagues and customers, as well as providing data-driven insights to inform better decision-making.

In each of our core services of engineering (hard services) and security and hygiene (soft services) we hold market leadership positions. We also deliver transformational projects in the areas of power and grid connections, building fit outs & modernisation, decarbonisation, fire safety & security and telecoms infrastructure, alongside compliance capabilities in fire safety & security and environmental services. Our sector expertise includes central government, critical national infrastructure, defence, financial services, healthcare & life sciences, local government & education, retail & logistics, manufacturing & media and transport & aviation.

We hold industry-leading ESG credentials, including a place on the CDP Climate change A List, and we have received multiple awards including Best Low Carbon Solution and Net Zero Carbon Strategy of the year. We have validated science-based targets that support our ambitions to reach Net Zero. We have been recognised as a UK Top Employer for the seventh consecutive year and Most Admired Company in the Support Services sector. We are also ranked 16th in the Top 100 Apprenticeship employers and ninth in the Inclusive Top 50 UK Employers list. Find out more at www.mitie.com