Financial & professional services lead in fleet sustainability rankings

The latest Fleet Sustainability Ranking Report, produced by Ayvens, shows that the Financial & Professional Services sector tops the ranking as the most sustainable industry, having the lowest diesel share and average CO₂ emissions. 

The Fleet Sustainability Ranking Report tracks how different industries are transitioning toward low- and zero-emission mobility across 29 European countries.

This year’s ranking builds on the 2022 edition and evaluates industries across four key metrics: the share of diesel vehicles, BEVs, plug-in hybrids (PHEVs) and hybrids, and the average CO₂ emissions of newly registered fleet cars. 

Construction follows in second place, achieving the strongest overall improvement, with BEVs accounting for 39% of new vehicles – the highest figure of any sector. In third place, the Energy & Chemical sector recorded the largest reduction in CO₂ emissions, down 30% since 2022.

At the other end of the spectrum, Healthcare remains the least sustainable sector. Diesel use has declined, but BEV adoption is the lowest of all industries, and the share of petrol vehicles has increased, suggesting fleets are reducing diesel without fully embracing electrification. Industrial and Pharmaceutical fleets still rely on higher diesel shares than average, though both sectors have halved their diesel use since 2022. Meanwhile, Technology and Automotive fleets show steady progress, driven by rising hybrid adoption and continued BEV growth.

Overall, the report shows a clear trend toward greener fleets. On average, the CO₂ emissions of new fleet vehicles have dropped 25% since 2022, reflecting a sustained focus on low-emission transitions. 

Diesel vehicles now account for less than a quarter of new fleet orders, compared with nearly half two years ago, while battery electric vehicles (BEVs) have more than doubled their share across most industries. 

Hybrid and plug-in hybrid vehicles have remained broadly stable, suggesting a gradual but decisive shift toward more sustainable operations.

Reflecting on the report, Suzanne Phillips, UK Head of Specialist Sales at Ayvens, said: “What we’re seeing now is a real tipping point in corporate mobility. Two years ago, many companies were still testing the waters on electrification - now, across most industries, it’s become an operational and financial reality. The leaders in this year’s ranking aren’t just reacting to regulation; they’re proactively integrating sustainability into their business models, and that’s driving tangible progress. 

"The differences between sectors underline that this transition isn’t one-size-fits-all. Some industries, like healthcare or manufacturing, face very specific logistical and cost barriers that require tailored solutions. That’s where our work at Ayvens comes in - using data, fleet expertise and on-the-ground support to help businesses overcome those obstacles in a way that’s practical, scalable and commercially sound."