Rox completes $100 million Series B financing at a valuation of $1.3 billion

AI sales startup Rox has raised a $100 million Series B at a $1.3 billion valuation, led jointly by General Catalyst and March Capital, with existing investors Sequoia and GV participating and Prosperity7 joining as a new backer. The company's AI agents research customer accounts, recommend priority follow-ups, and prepare client outreach. Rox co-founder Ishan Mukherjee said the new capital will fund additional AI research and product development, and the company plans to expand its US sales, marketing, and business teams fivefold next year. The round places another AI application vendor in unicorn territory as investors continue to concentrate capital on agentic enterprise software.