Kent brewer, Shepherd Neame, has cut its company car fleet emissions by 20% in the past four years.
The company has just two petrol-engined cars remaining in its 56-vehicle fleet, which together cover more than a million miles a year.
By the next renewal cycle it will have no petrol cars.
The fleet’s CO2 emissions average is 143g/km, with a Honda Civic hybrid the lowest at 109 g/km.
The majority of its company cars fall within Vehicle Excise Duty bands A to D, meaning the company not only saves on emissions but also on company car tax.
Shepherd Neame’s production and distribution director, Ian Dixon, said: “We have no intention of resting on our laurels.
"Everyone at Shepherd Neame is committed to operating in the most sustainable and responsible way possible and reducing company car emissions is another step forward in achieving this aim.”