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Voice technology startup Wispr has announced the successful completion of a $25 million Series A extension round, elevating the company’s total funding to $81 million and its valuation to $700 million post money. The investment, spearheaded by Notable Capital with participation from Steven Bartlett’s Flight Fund, arrives just five months after the company raised $30 million from Menlo Ventures in June.
Demonstrated Market Traction
Wispr has established significant adoption within the enterprise sector, with teams from 270 Fortune 500 companies now utilizing Wispr Flow in their daily workflows. The platform has achieved 40 percent month over month growth in both users and annual recurring revenue since June, accompanied by an impressive 70 percent user retention rate after twelve months of usage.
The company’s engagement metrics reveal particularly strong user dependency. After three months of adoption, users write more than 50 percent of their characters through Wispr Flow, increasing to 72 percent after six months. The company has also signed 125 enterprise customers weekly in recent periods, demonstrating accelerating commercial momentum.
Strategic Leadership and Vision
Notable Capital’s Hans Tung, who brings experience from early stage investments in prominent technology companies including Airbnb, Slack, Coinbase, Anthropic, and TikTok, has joined Wispr’s board as an observer. His involvement follows extensive diligence including competitor interviews and product analysis.
The funding will support several strategic initiatives, including international market expansion, recruitment of specialized machine learning engineering talent, and advancement of personalized automatic speech recognition capabilities. The company reports its current error rate stands at approximately 10 percent, compared to 27 percent for OpenAI’s Whisper and 47 percent for Apple’s native transcription according to internal benchmarks.
Beyond Transcription Technology
Wispr positions its offering as fundamentally different from conventional dictation services. The company reports that 90 percent of content dictated through Flow requires no editing, compared to approximately 10 percent accuracy for traditional tools like Siri. Flow operates across more than 25,000 applications and websites, automatically removing filler words, adding punctuation, and formatting text based on context.
The long term vision extends beyond voice input toward developing a comprehensive voice led operating system capable of initiating workflow automation. The company is currently testing its technology through a closed API with select enterprises and hardware partners, with plans to open access to additional developers next year.
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