KKR sold off its 46.39% stake in J.B. Chemicals and Pharmaceuticals to Torrent Pharma after grooming the Indian drugmaker into a fast-growing business for the past five years.

The company uses a scale of -100 to +100 to rank companies – as you'd expect, higher is better – and all of the top 20 pharma companies included in this year's survey were in positive territory.

India's Sun Pharmaceutical has signed an agreement to acquire US biotech Concert Pharmaceuticals and its lead drug deuroxilitinib, in phase 3 testing for alopecia areata, a leading cause of hair loss.

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