PruProtect's annual premium income increased 141% in the first quarter of 2010 compared to the same period a year ago.
First quarter premium income jumped to £5.3m in Q1, up from £2.3m for the first quarter of 2009.
New applications received by the protection arm of the Prudential Group also rose to 12,260 for the period, compared to 4,677 in Q1 2009.
The total number of PruProtect polices in force at the end of Q1 2010 stands at 29,548, a near four-fold increase on the Q1 09 figure of 7,818.
In addition, a further 1,300 new intermediaries registered to write business with PruProtect in the first three months of the year.
The figure is a fall from the 7,818 achieved in Q1 09, though the company says this is due to a smaller pot of advisers from which to gain registrations because of the large number which signed up last year.
PruProtect's director of marketing and distribution Justin Taurog says: "We've had a fantastic start to the year and this continued strong growth during challenging economic times confirms our position as one of the genuine leaders of the UK protection industry."