Solarcentury, a renewable energy company founded by green campaigner Jeremy Leggett, is mulling a flotation on the London Stock Exchange.
A listing could value the company at up to £100m, according to an estimate by an industry expert.
Solarcentury, which employs more than 110 people and provides solar technology across Europe, has a £35m turnover and is one of the country's fastest growing clean technology firms. A source close to the company said that while a decision has not been made, it was "an option [because] the company is doing well".
Solarcentury is believed to be considering the flotation for later this year, taking advantage of "feed-in tariffs", which will be detailed in a government announcement next week. From April, people who install photovoltaic cells will be able to sell surplus energy to the National Grid, creating an incentive to buy the kit.
Mr Leggett, who was a leading campaigner for Greenpeace International on climate change in the 1990s, declined to comment.