YORKSHIRE telecoms firm aql beat close rivals including BT to a top industry award.
The internet telephony company won best in class at the ISPA awards in London.
Nicholas Lansman, general secretary of ISPA, said: "Judges felt the level of customer service and support offered by aql were superior to that of the other entrants."
Adam Beaumont founded the Leeds-based company in 1998. Clients include Deutsche Bank, the Metropolitan Police Service and BHS.
Dr Beaumont, the managing director, said: "I am very pleased with my team at aql, for developing such strong products and maintaining that all our customers receive such fine attention to detail."