SAN FRANCISCO: Grammarly has acquired email productivity startup Superhuman, the latest move in its broader effort to build an artificial intelligence-powered workplace suite, Reuters reported Tuesday.
Financial terms of the deal were not disclosed. Superhuman, once an invite-only platform for high-efficiency email communication, was last valued at $825 million in 2021 and generates roughly $35 million in annual revenue.
The acquisition comes on the heels of Grammarly’s recent $1 billion funding round led by General Catalyst. The San Francisco-based company, founded in 2005, now boasts more than 40 million daily users and over $700 million in annual revenue. Executives said the company is considering a name change as it pushes beyond grammar assistance.
“Email continues to be the dominant communication tool for the world,” said Grammarly CEO Shashir Mehrotra. “Superhuman is the obvious leading innovator in the space.”
Superhuman, backed by investors including IVP and Andreessen Horowitz, has raised more than $110 million to date. The company claims its AI-powered tools help users send and respond to 72% more emails per hour, with AI-assisted compositions growing fivefold over the past year.
The deal will see Superhuman founder and CEO Rahul Vohra and more than 100 employees join Grammarly. While Superhuman will retain its product and brand identity, it will now benefit from greater resources to accelerate investment in AI and expand into adjacent tools, such as calendars and task management, Vohra said.
Grammarly previously acquired Coda, a startup focused on AI collaboration. The addition of Superhuman, Mehrotra said, is the next step in creating a suite of AI agents designed to help users navigate digital workflows and reduce time spent on repetitive tasks.
The move positions Grammarly in an increasingly crowded market of enterprise productivity tools, where it will face off against competitors such as Google, Microsoft, Salesforce, and a growing roster of startups.