Published: August 21, 2026 | Category: Venture Capital

Investment triples valuation of dictation app maker in six months, as Big Tech circles the voice interface market

Wispr, the maker of the AI dictation app Wispr Flow, has raised $280 million in a Series B round that values the four-year-old start-up at $2 billion, tripling its valuation from six months ago. Menlo Ventures led the round, with existing backers Notable Capital, NEA, Neo Ventures and 8VC returning alongside new investors including Acrew, Forerunner, Goodwater, Plus Capital and Peak XV.

The San Francisco-based company has now raised $361 million in total since its founding in 2021, according to figures reported by Fortune’s Term Sheet. Wispr was valued at roughly $700 million as recently as November, before Menlo Ventures began talks in May on a financing that people close to the matter said would value the company near $2 billion.

Wispr Flow, the company’s flagship dictation software, is used by millions of consumers and 100,000 businesses, and the company said revenue has grown more than 150 per cent year on year for four consecutive quarters. Cofounders Tanay Kothari and Sahaj Garg, who met as Stanford freshmen, built the company around a bet that voice would become the primary interface for interacting with artificial intelligence tools, after earlier attempts at wearables and a “silent speech” interface failed to gain traction.

“Dictation is how you get in the door,” said Matt Kraning, a partner at Menlo Ventures. “What people pay for is not having to type, which puts you up against workflow tools, meeting tools, and eventually the text box in front of every AI model. The labs have mostly solved intelligence. Nobody has solved how a normal person tells it what they want.”

The round also drew a roster of athlete-investors, including Joe Burrow, Shaun White, Klay Thompson and Paul George.

Wispr’s bet on voice as a durable business, rather than a feature that gets absorbed by larger platforms, is being tested directly by the companies best positioned to absorb it. Apple, Google, Microsoft, Anthropic and OpenAI have all pushed further into dictation and voice interfaces over the past year, and each controls a distribution channel, whether an operating system, a browser or a leading AI model, that Wispr does not.

Kothari and Garg have positioned privacy as central to the pitch, arguing that a stand-alone dictation layer earns more trust than a bundled feature from a platform with broader data access. “Privacy and security aren’t features for us,” Garg said. “They’re the foundation for earning ambient access to your life.”

The financing adds to a run of large rounds for voice and AI-interface start-ups this year, as investors bet that the software layer sitting between people and AI models will command its own valuation separate from the underlying models. Whether Wispr can defend that position against five well-capitalised rivals building the same feature into products with far larger user bases remains the open question for the next round.

Sources