Suki, a Startup Selling Siri for Doctors, Valued at $400 Million

Suki AI Inc., a health startup that makes a sort of Siri digital assistant for doctors, raised a new round of venture capital valuing the business at $400 million.

The five-year-old company plans to announce Tuesday that it received $55 million in a deal led by growth equity firm March Capital. It also formed an agreement with Google for its cloud division to start selling Suki’s services to health companies, said Punit Soni, the startup’s chief executive officer.

The upstart is also chasing a giant. In April, Microsoft said it plans to spend nearly $20 billion on Nuance Communications, a ...