The Birmingham-based financial services mutual was awarded Quality Service Provider of the Year by the Institute of Customer Service.
Clive Bridge, group operations director at Wesleyan, said: “In such a competitive marketplace, it is vital we deliver value and satisfaction to our customers, so we are delighted to have been recognised at these national awards.”
Wesleyan, which provides specialist advice and products for doctors, dentists, teachers and lawyers, was praised for the quality of its service to professional customers.
Jo Causon, chief executive of the Institute of Customer Service, added: “There is a growing awareness that customer service is integral, not just to the performance of individual organisations, but to the UK economy as a whole.
“Wesleyan Assurance Society is differentiating through quality service specifically tailored to their customers’ needs, placing customers at the heart of their business strategy and securing a bright future for their employees by doing so.”