AI sales agent startup Rox raises $100M Series B at $1.3B valuation

Rox, an AI startup building autonomous agents for enterprise sales, has raised $100 million in Series B funding at a $1.3 billion valuation.

The round was co-led by General Catalyst and March Capital. Prosperity7 Ventures, the venture capital arm of Saudi Aramco, also participated, as did existing investors Sequoia Capital and Factory and new investors including Databricks Ventures.

Rox develops AI revenue agents designed to help large enterprises identify commercial opportunities, generate sales pipelines and automate customer-facing workflows. The platform supports tasks ranging from prospect research and lead qualification to personalized outreach, meeting scheduling, deal management and account expansion.

The agents operate within companies’ existing systems and leverage enterprise customer data to support sales execution. Rather than simply generating recommendations or content, Rox aims to enable AI agents to take action across revenue workflows and deliver measurable commercial outcomes.

Rox said its annual recurring revenue grew more than tenfold in its first year in the market, as the platform expanded across enterprise customers in technology, energy, industrial and financial services sectors. Its customer base includes companies such as Groq, Ramp and Puma Energy. The company also reported net revenue retention exceeding 700% among enterprise customers.

Rox plans to use the new capital to advance AI research, develop custom models and strengthen its evaluation infrastructure for real-world revenue tasks. The company also intends to expand its enterprise customer base across healthcare, industrial manufacturing, financial services, energy and technology.

The long-term opportunity for Rox will depend on its ability to demonstrate sustainable customer returns, scale enterprise deployments and compete with established customer relationship management platforms.