The construction industry ranks second overall in Ayvens’ Fleet Sustainability Ranking Report 2025, recording the most substantial overall improvement since 2022, with BEVs making up 39% of new fleet vehicles
Corporate fleets across Europe are making measurable progress in cutting emissions and adopting cleaner technologies, but the pace of change varies significantly between sectors.
The findings are from the second edition of the Fleet Sustainability Ranking Report, produced by Ayvens, which tracks the transition of different industries toward low- and zero-emission mobility across 29 European countries.
Across all sectors, the analysis shows clear and consistent progress. The average CO₂ emissions of a new fleet vehicle have decreased by 25% since 2022, reflecting a sustained focus on transitioning to low-emission vehicles.
Diesel vehicles now represent less than a quarter of new fleet orders, compared with nearly half two years ago. In contrast, battery electric vehicles (BEVs) have increased their share across every industry, except a few cases, more than doubling in most instances.
Hybrid and plug-in hybrid sales have remained broadly stable, suggesting a gradual yet decisive shift towards more sustainable practices.
This year’s ranking builds on the 2022 edition. It evaluates each industry across four equally weighted indicators: the share of diesel vehicles, battery electric vehicles (BEVs), plug-in hybrids (PHEVs), and hybrids, as well as the average CO₂ emissions of newly registered fleet cars.
By comparing results year on year, the study is now able to highlight which sectors are leading the transition and which are still delayed in making progress.
The Financial & Professional Services sector retains its position as the most sustainable industry for the second consecutive year, supported by the lowest diesel share and the lowest average CO₂ emissions.
The Construction industry ranks second, recording the most substantial overall improvement since 2022, with BEVs making up 39% of new vehicles, the highest figure of any industry.
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