Spanish Startup Supersonik Launches From Stealth And Raises €4.2 Million Funding

The tool joins live video calls, demonstrates real software, and tailors demos to buyers in real time. The round was led by Andreessen Horowitz, with angels from Google, DeepMind, and Salesforce.

"Our vision is simple," shared Daniel Carmona, CEO of Supersonik. "Every prospect should be able to click a button and get a live, personalized demo of real software, in their own language, the moment they are ready. No forms, waitlists, or back-and-forth."

Founded in 2025, Supersonik helps B2B SaaS companies accelerate sales with AI-powered product demos. Its AI Agent can join live calls, deliver interactive demos in any language, and personalise the experience—cutting lengthy sales cycles and enabling teams to focus on closing deals.

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The company was founded by Daniel Carmona Serrat, Joaquim Lechà, and Pol Ruiz. Serrat, a serial entrepreneur, had collaborated with Ruiz for three years on AI-driven automation before exploring how AI agents could eliminate the bottleneck of software demos. Around the same time, Lechà, then CEO of Typeform, shared their vision to reinvent software sales. Together, they combined entrepreneurial experience, SaaS leadership and technical expertise to create Supersonik.

"We’re living through the biggest tech shift of our lifetime with AI, and teaming up with Dani and Pol was a no-brainer to build a future where every company can engage buyers instantly, globally, and at scale, transforming how software is discovered and bought," added Joaquim Lechà, Co-founder at Supersonik.

Supersonik sets itself apart from static tours or recordings by adapting demos in real time using live product interactions and conversational intelligence ensuring each prospect gets a tailored, interactive experience.

Its AI agents can pull data from CRMs, websites, documentation, and knowledge bases, automatically customizing demos by industry, size, geography, and tech stack without needing a briefing.

The company highlights immediate applications: embedding a demo button on websites for high-intent buyers, re-engaging cold leads with live conversations, qualifying and routing prospects instantly, or even upselling features to existing customers.

Already collaborating with several companies pre-launch, Supersonik plans to double its team by the end of 2025. The new funding will fuel hiring in engineering and go-to-market while strengthening its secure, compliant, and enterprise-grade AI infrastructure.

"Live demos have been too costly and slow for most SaaS companies to scale. Supersonik changes that by turning the sales process into an instant, interactive product experience that delivers real value from the start," said Gabriel Vasquez, Partner at Andreessen Horowitz. "This is a fast, technical team with the ability to recruit and build at the highest level, and we believe they’re poised to redefine how software is sold."

Supersonik aims to extend its AI capabilities beyond demos to cover onboarding, support, renewals, and more.

Its vision is to reinvent customer interactions across the entire lifecycle delivering real-time, intelligent engagement at every stage without delays.

"Buyers move fast," Carmona said. "The fastest way to lose a deal is to make a buyer wait. Supersonik makes sure you never lose a deal to an avoidable delay."

About Supersonik

Supersonik is transforming B2B SaaS sales with AI Agents that deliver instant, multilingual, interactive demos tailored to each buyer. By merging discovery, qualification, and demonstration into one seamless step, we shorten sales cycles, boost revenue, and replace outdated processes with intelligent, dynamic AI-driven experiences paving the way for the future.