The owners of computer antivirus business Avast Software have hired bankers to prepare the company for a sale, which could attract a price tag of up to £3bn, according to Reuters.
Private equity firm CVC Capital Partners, which took a majority stake in the business in 2014, has appointed Rothschild to explore potential sale routes.
A London stock market listing is one option, sources told Reuters, and if successful it would represent the UK's largest ever technology IPO.
However, several other companies have recently pulled stock market floats in favour of a private sale. CVC itself made a winning €1.75bn (€1.55bn) bid last month for business services firm TMF Group, which was in the advanced stages of an IPO.
Budget fitness chain Pure Gym, which backtracked on its steps towards a public listing last year, was snapped up earlier this month by US private equity house Leonard Green & Partners for £600m.
Things were looking rosier at the beginning of the year, as sources told City A.M. that private equity giant Blackstone was considering listing warehouse business Logicor in a massive £11bn deal. But the float, which was due to take place in the first six months of the year, has not materialised.
Avast has previously considered a stint on the public markets, as it filed to float on Nasdaq in late 2011, but cancelled the plans in 2012 due to tough market conditions.
When CVC bought a majority stake two years ago, from the founders and fellow private equity firm Summit Partners, the Prague-based business was valued at $1bn (£760m).
Recent cyber attacks, such as the WannaCry ransomware which hit the NHS in May, have helped to raise the desirability of security software companies such as Avast.