Corporate fleets slash CO2 by 25% in two years – new Ayvens report reveals

Corporate fleets across Europe are making “tangible” progress in cutting emissions and going electric, but the pace of change varies significantly between sectors.

The research shows a real tipping point in corporate e-mobility but the transition isn’t one size fits all

Ayvens’ 2025 Fleet Sustainability Ranking Report reveals the average CO2 emissions of a new fleet vehicle have dropped 25% since 2022, reflecting a sustained focus on low-emission transition.

The annual research, now in its second edition, also finds that industries have almost halved the share of diesel vehicles on their fleets since 2022. Diesel vehicles now represent less than a quarter of new fleet orders, compared with nearly half two years ago, while battery electric vehicles (BEVs) have increased their share across every industry, more than doubling in most cases.

Hybrid and plug-in hybrid shares have remained broadly stable, suggesting a gradual but decisive shift towards more sustainable practice.

This year’s ranking builds on the last edition and evaluates each industry across four equally weighted indicators: the share of diesel vehicles, battery electric vehicles (BEVs), plug-in hybrids (PHEVs) and hybrids, and the average CO2 emissions of newly registered fleet cars.

It also evaluates progress across eight different industries: Automotive, Construction, Consumer Goods, Energy & Chemical, Financial & Professional Services, Healthcare, Industrial, and Pharmaceutical and Technology.

Across all sectors, the analysis shows clear and consistent progress, but with room for improvement for some industries.

The Financial & Professional Services sector remains in first place as the most sustainable industry for the second consecutive year, supported by the lowest diesel share and lowest average CO2 emissions.

Next up is the Construction industry, recording the strongest overall improvement since 2022, with BEVs making up 39% of new vehicles, the highest figure of any industry. In third place, the Energy & Chemical sector achieved the largest reduction in CO2 emissions, down 30% since 2022.

But progress among the Healthcare sector is mixed. While diesel has declined, BEV uptake remains the lowest of all sectors, and the share of petrol vehicles has increased – suggesting that some fleets are switching away from diesel without fully embracing electrification.

Industrial and Pharmaceutical fleets continue to rely on higher diesel shares than average, though both have halved their diesel use since 2022. Meanwhile, the Technology and Automotive sectors show steady progress, driven by higher hybrid adoption and continued BEV growth.

Suzanne Phillips, UK head of specialist sales at Ayvens, said the research shows a “real tipping point”, with electrification now moving from pilot stage to business-as-usual.

“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.”

But she said the differences between sectors underline that this transition isn’t one size fits all.

“Some industries, such as 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.”

Phillips also said that fleet sustainability is now a key competitive advantage in today’s markets.

“The organisations that move early are building more resilient, efficient and future-ready operations, and that’s exactly what this ranking brings to light.”

Ayvens’ 2025 Fleet Sustainability Ranking Report is online here.

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