Wonderful more than doubles its valuation to $5B in under 6 months

Israeli-Dutch startup Wonderful has closed a $550 million Series C that pegs the company at $5 billion. That’s a sharp jump from the $2 billion valuation it got on its last round, which was nearly six months ago.

Insight Partners led this financing as well, and the same familiar backers came along again: Index Ventures, IVP, Vine Ventures, 9Yards and Bessemer Venture Partners. Salesforce showed up as a new investor this time.

Founded in early 2025, Wonderful got its first real pull from a customer service AI agent platform built for non-English-speaking markets. The company also leaned hard on a very hands-on deployment model, sending engineering teams to work with customers, sometimes on their premises, to plug the tech into their workflows and systems. That approach seems to have landed. Wonderful says it now operates in more than 35 countries.

The bigger shift is that the company is no longer just a customer service play. Its main product is now “Wonderful AI OS,” a platform that it says can connect agents, workflows and AI apps with a company’s data, context and existing integrations. Wonderful says it works with any AI model, fits existing tech stacks, and lets customers pick only the pieces they want while keeping ownership of what they build.

For now, the startup is still relying on forward-deployed engineers to get its products embedded quickly. The new money is meant to speed up product development, expand those teams and meet demand. In other words: the company has found that in enterprise AI, a slick pitch helps, but people who will actually wire the thing into a business still matter more.