In 2017, Victor Riparbelli pitched a vision that more than a hundred venture capitalists dismissed as pure science fiction. That idea, an AI platform that builds video as easily as typing an email, now anchors a company worth $4 billion.
Synthesia’s rise did not happen overnight. The London based startup spent years operating in a world that had yet to meet ChatGPT, generative image tools, or any mainstream business appetite for synthetic media. Investors back then struggled to see beyond a technology they considered years away from commercial relevance. Their rejections underscored a familiar truth: being too early can look indistinguishable from being delusional.
The turning point arrived via a cold email. Co-founder Steffen Tjerrild sent a product demo to billionaire entrepreneur Mark Cuban, who responded within five minutes. After several hours of back and forth, Cuban wired $1 million into the company. He later explained that he viewed AI as a defining force and video as its natural frontier. That single yes did more than fund operations. It supplied credibility when almost no one else saw a future in the product.
Even with a prominent backer, Synthesia needed to find its real customer. The original plan targeted Hollywood studios with AI dubbing tools. Filmmakers admired the tech but felt little urgency to adopt it. Meanwhile, corporate teams asked practical questions: could this streamline compliance training, accelerate onboarding, or produce multilingual internal communications at scale? Those inquiries pointed toward a far bigger market. The company pivoted hard into enterprise communication.
The results arrived fast. A beta release of the business focused platform pulled in over $300,000 in revenue across four months from roughly 1,000 customers, according to CNBC. That traction signaled genuine product market fit, a validation no pitch deck could replicate. By January 2026, a $200 million Series E round led by GV, with Nvidia’s venture arm, Accel, NEA and Air Street Capital participating, pushed the valuation to $4 billion. GV first backed the firm during its 2021 Series B, years before AI video became a crowded investment category. Riparbelli described the raise as doubling down on a long bet rather than celebrating a sudden discovery.
Today the platform serves over 60,000 organizations. A staggering 90 percent of Fortune 100 companies use its tools. The story carries a sharp lesson for founders everywhere, especially inside India’s accelerating AI ecosystem. Flashy consumer apps grab attention, but the billions often flow toward software that solves unglamorous, everyday problems. Employee training modules and internal announcements rarely make headlines. Yet they built the foundation for one of the quietest giants in enterprise AI. Synthesia’s trajectory suggests the next multibillion dollar firm may already exist, waiting for enough believers to catch up.
