The Brussels-founded, Y Combinator-backed startup counts Orange among its early enterprise customers, which deployed a customer onboarding agent in four weeks. General Catalyst led the round.
Nexus, the Brussels-founded AI agent deployment platform backed by Y Combinator, has raised $4.3 million in a seed round led by General Catalyst, with participation from Y Combinator, Transpose Platform, Twenty Two Ventures, and Phosphor Capital. Angel investors including Gokul Rajaram, Raphael Schaad, and Jake Mintz also joined.
The company was founded in 2024 by Assem Chammah, an aerospace engineer and former McKinsey consultant who serves as CEO, and Shady Al Shoha, an AI engineer. Nexus operates from Brussels and San Francisco.
The core problem Nexus is solving is familiar to anyone who has worked in enterprise technology: most AI projects fail not because the AI is bad, but because the distance between a business team’s idea and a working deployment is measured in months of engineering backlog.
Nexus’s pitch is that non-technical teams should be able to describe what they want in plain language and have an agent running in weeks, connected to their existing systems through 4,000+ integrations including CRM, ERP, Slack, Teams, and custom APIs, with governance and compliance built in from the start rather than retrofitted later.
The platform is already in production at Orange, the global telecommunications group. According to Nexus, Orange deployed a customer onboarding agent in four weeks, saw conversion rates increase by 50%, and is generating more than $6 million in annual LTV from that single agent.
Lambda.ai, an AI infrastructure company, uses Nexus to run agents across its sales and marketing functions. Nexus also counts Proximus Global among its enterprise customers.
The model pairs the self-service platform with white-glove implementation support: dedicated engineering and enablement teams handle integration, rollout, training, and ongoing optimisation alongside the client.
Yuri Sagalov, Managing Director at General Catalyst, framed the investment around Nexus’s speed to enterprise traction: the company went from founding in 2024 to production deployments at major telecoms and technology companies within months.
The funding will be used for product development, go-to-market expansion, and growing the implementation team.
The agentic AI deployment space is crowded, dozens of platforms claim to make enterprise agents easy, but Nexus’s combination of YC pedigree, General Catalyst backing, and production deployments at named enterprises puts it among the more credibly positioned early-stage players.
