Brit has posted a 62% surge in gross written premiums in the first half of 2003.
In its latest trading statement, Brit said the surge means it is on course of achieving its income targets for 2003.
The Lloyd's insurer said its UK operations were boosted further through the acquisition of the renewal rights of Markel's motor fleet portfolio with premium income of £16.25m per annum.
A Brit statement said: "This transaction further enhances Brit's UK presence at a time when the Group's forecast motor results remain very profitable."
Brit chief executive Neil Eckert said: "The first half of 2003 has been an exciting time for us. Trading conditions are exceptional, loss incidence has been benign, and with the integration of PRI into our business, we are making rapid strides in the expansion of our UK commercial business as part of our strategic plan."
