Indian call centre specialist I-One Source will sign up another two UK insurers by the end of the year.
The company's European head Matthew Vallance said the outsourcer already had three UK insurance companies on its books and hoped to sign up another "one or two" this year.
"We are under strict confidentiality agreements so I can't say who they are, but we work for composite and direct insurers mostly in motor and household."
I-OneSource has two sites in Mumbai and three in Bangalore. Last year the company generated $42m (£23m) in revenues.