U.S. online and mobile therapy company Talkspace has secured $50 million in a Series D funding round.

Revolution Growth led the round, which had participation from existing investors, Norwest Venture Partners, Qumra Capital, Spark Capital and Compound Ventures.

In connection with the latest financing, Revolution Growth will join the Talkspace board of directors.

Talkspace is planning to use the money raised from the funding to accelerate the growth of its commercial business.