2026 Fleet Sustainability Ranking by Industry

For the second consecutive year, Financial & Professional Services ranks as the most sustainable industry fleet. The sector combines the highest share of battery electric vehicles (52%) with the lowest average CO₂ emissions (44 g/km), demonstrating how large-scale electrification can significantly reduce fleet emissions. The sector also continues to maintain one of the lowest diesel shares, reinforcing its position as the benchmark for sustainable fleet management.

The Automotive industry moves up to second place in this year's ranking, compared with fifth position in the previous edition. This strong performance reflects substantial progress in reducing reliance on conventional powertrains while increasing the adoption of lower-emission vehicles. The result highlights how companies within the automotive value chain are increasingly applying electrification strategies within their own fleets, not just in the products they bring to market.

Fleet electrification continued to accelerate between 2023 and 2025, with battery electric vehicle adoption increasing across every industry analysed. BEVs now represent the largest share of new vehicle orders in most sectors, marking a significant milestone in the corporate fleet transition. Financial & Professional Services leads with a BEV share of 52%, followed by Energy & Chemicals at 49% and Construction at 47%. These figures demonstrate that large-scale electrification is becoming increasingly achievable across a wide range of business environments.

Diesel vehicle share fell across every industry included in the ranking. Six industries now record diesel shares below 15%, underlining the speed with which fleets are moving away from traditional combustion technologies. While Pharma (21%) and Consumer Goods (20%) remain the most diesel-reliant sectors, both have significantly reduced diesel adoption compared to 2023 levels. At the other end of the ranking, Financial & Professional Services, Energy & Chemicals and Automotive have all reduced diesel shares to single-digit levels.

Accelerating electrification is having a measurable impact on fleet emissions. Average CO₂ emissions declined across every industry between 2023 and 2025, with some sectors achieving particularly significant reductions. Financial & Professional Services achieved the lowest average emission level at 44 g/km, followed by Technology at 53 g/km and Industrial at 54 g/km. Meanwhile, traditionally higher-emission sectors such as Consumer Goods, Healthcare and Pharma also recorded substantial improvements during the period.

As BEV adoption grows, the role of transitional powertrains is beginning to shift. PHEV shares declined across most industries as organisations increasingly opted for fully electric vehicles. Similarly, hybrid adoption fell in many sectors, reflecting growing confidence in BEV technology and charging infrastructure. ​ This trend suggests that many fleets are now moving beyond intermediate electrification strategies and accelerating their transition towards fully electric mobility.

The 2026 Fleet Sustainability Ranking shows that fleet electrification is continuing to gain momentum across Europe. Every industry analysed increased its share of battery electric vehicles, reduced diesel dependency and lowered average CO₂ emissions between 2023 and 2025.

While the pace of change differs between industries, the direction is clear: corporate fleets are becoming cleaner, more electrified and more sustainable. As organisations continue to pursue ambitious sustainability targets, fleet transformation will remain a key driver of transport decarbonisation across Europe.

The Fleet Sustainability Ranking by Industry is produced annually by Ayvens International Consultancy using international fleet data across Europe. Industries are assessed using four equally weighted criteria: lowest diesel share, highest BEV share, highest combined hybrid/PHEV share, and lowest average CO₂ emissions.