Wonderful began by building customer service bots for markets where English-first AI products did not fit. The Israeli-Dutch startup has now closed a $550M round at a $5B valuation. Its worth has more than doubled in under six months.
Insight Partners led the Series C, as it did the previous round. Index Ventures, IVP, Vine Ventures, 9Yards, and Bessemer Venture Partners returned, and Salesforce invested for the first time. The round lands roughly two years after the company’s founding in early 2025.
An unusual playbook drove the growth. Wonderful posts engineering teams at customer sites to weave its agents into local workflows. That hands-on approach resonated in non-English-speaking markets where off-the-shelf AI underperforms. The company claims customers in more than 35 countries today.
The product has moved past its customer service roots. Wonderful AI OS ties agents, workflows, and applications to corporate data and legacy systems, with no loyalty to any single model vendor. Teams pick the components they want, retain rights to everything they construct, and match models to tasks, per CTO and co-founder Roey Lalazar.
Proceeds will speed product development and grow the forward-deployed engineering teams that embed the software. Wonderful’s rise reflects a market splitting into model vendors and deployment specialists, with hands-on integration expertise increasingly the scarce resource.
