Revenue: £40.7m (-5%)
Net profit: 1.7%
This Cisco and Microsoft partner endured a five per cent revenue slump during its year to 31 May 2017 as its strategy of pursuing services resulted in lower equipment sales. Although gross margins rose, net profits fell from £850,000 to £674,000 as foreign exchange losses stemming from Brexit weighed on its bottom line. Boasting offices in Leatherhead, Heron Tower in London, New York and Hong Kong, Cisilion recently promised further global expansion.