microlise group plc said monday that 2021 revenue and earnings before interest taxed depreciation and amortization grew in line with market expectations but warned of supply chain issues lasting longer than expected the provider of transport management software to fleet operators said its annual recurring revenue run rate as of dec 31 rose 9 to 390 million pounds 529 million year on year the londonlisted company said it will continue working to execute its plans to mitigate the effects of operating challenges caused by the covid19 pandemic and global microchip shortages the board remains confident in the groups future growth which is underpinned by longterm structural drivers the company said