About 140 jobs are set to go at the London Electric Vehicle Company (LEVC), in Coventry.
The firm said, like other automotive firms, it had been severely affected by the Covid-19 pandemic and would be looking for voluntary redundancies.
The move forms part of a package of measures to improve cash flow.
LEVC developed London's first electric black cab, with more than 4,400 vehicles now on the capital's streets.
It said a disruption to supply chains during the pandemic and "significant global economic challenges" meant there was a need to restructure the business.