Tech companies primed to go public next year saw a surge in mega funding rounds in 2014, as the number of $100 million or more financing deals more than doubled to 50 this year, according to the analytics firm CB Insights.
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And as mega rounds soar, so do billion-dollar valuations for venture-backed tech companies.
The number of private U.S. tech companies valued at $1 billion or more in the IPO pipeline has grown more than 50 percent since last year, said CB Insights.
Currently, 40 companies in the 2015 tech IPO pipeline have raised a venture capital financing round at a real or rumored valuation of $1 billion. That's up from 25 a year ago.