Thermo Fisher Scientific, the world's largest maker of scientific instruments, reported better-than-expected quarterly profit and sales, boosted by the contribution from the Life Technologies acquisition.
Thermo Fisher said net profit rose to $601.2 million, or $1.49 per share, in the fourth quarter from $342.1 million, or 92 cents a share, a year earlier.
Excluding items, Thermo Fisher earned $1.99 per share. Analysts on average had expected $1.94, according to Thomson Reuters I/B/E/S.
Revenue jumped 30 percent to $4.49 billion, topping Wall Street's average estimate of $4.38 billion.
With the addition of Life Tech business, Thermo Fisher's life sciences business reported a surge in sales to $1.19 billion, compared with $192 million a year earlier.
The business provides reagents, instruments and consumables used in biological and medical research.
The company's other three businesses reported sales growth of 2 percent to 4 percent.
The purchase of Life Tech for more than $13 billion was completed in early 2014.
Thermo Fisher, which paid down $3.8 billion of debt in 2014 related to the Life purchase, said it was on track to achieve $300 million in cost saving synergies in year three.
Thermo was due to provide its financial forecasts for 2015 later on Thursday during a conference call with analysts.