Rox Raises $100M Series B at a $1.3B Valuation to Build an AI Revenue Agent for the Global 2000

Rox, which builds an AI revenue agent for the world’s largest companies, has raised a $100 million Series B at a $1.3 billion valuation. General Catalyst and March Capital co-led the round. Existing investors Sequoia Capital and Factory doubled down, and new investors include Databricks Ventures and Prosperity7 Ventures.

The financing follows a $50 million seed and Series A announced in November 2024. In its first year in market, Rox says it grew annual recurring revenue more than 10x. Customers include public and private companies in non-tech industries such as IT services, energy, commodities, medical technology, industrial manufacturing and automotive. The company reports net revenue retention above 700% across enterprise customers, with some seeing about 25x return on investment within 90 days. These figures come from the company and have not been independently verified.

Selling to the top 15%

Rox starts from how enterprise sales works. The top 15% of reps bring in roughly 90% of revenue, yet the average rep spends 40% of their time on administrative work, according to a Salesforce figure the company cites. The Rox agent automates pipeline generation, deal execution and upsells so reps can focus on complex accounts and relationships. It generates pipeline, qualifies leads, books meetings and manages deals inside a company’s existing systems.

Rox is a vertically integrated enterprise AI system built on each customer’s own data warehouse. The company shared these results. A global IT services firm gained $330 million in qualified pipeline in eight weeks, and its reps got 1,000 hours back after handing off pursuit prep. A global medical technology company found more than $200 million in new funding opportunities at medical facilities and closed $24 million in revenue in five months. A global engineering and professional services firm saw more than $310 million in potential opportunities, including public-sector bids it had previously missed. A leading payroll provider used Rox to reach 4 million prospects it could not economically cover, booking meetings at 20% of the cost of traditional outreach. A large German engineering and technology company reported 24.3x ROI in 90 days.

Revenue is a harder problem than code

Rox calls revenue the next frontier for AI agents and one of the hardest. Unlike code, which an agent can test right away, sales outcomes take weeks or months to show up. The company is working on this with custom models and original research, including a revenue-agent benchmark that measures performance on real-world revenue tasks. It recently cut outbound prospecting pricing by 50%, which it attributes to research-led improvements.

“Rox is the product I wish I had,” said Ishan Mukherjee, co-founder and CEO. He said Rox built for the Global 2000 because that is where the problem is hardest, and that its own go-to-market runs entirely on Rox.

Marc Bhargava, managing director at General Catalyst, said that for the first time boards are telling revenue leaders to try something new rather than renew the incumbent. Many companies have said they would take on Salesforce, he said, but this time the old systems were never built for agents.

Rox plans to use the funding for AI research, custom models and evaluation infrastructure, and to expand with large enterprises in healthcare, industrial, financial services, energy and technology. It says it was named a Visionary in the 2026 Gartner Magic Quadrant for Revenue Action Orchestration and a Major Player in the 2026 IDC MarketScape for Worldwide Unified Revenue Orchestration Platforms.

Rox was founded in 2024 by Ishan Mukherjee, Shriram Sridharan and Diogo Ribeiro, and is based in San Francisco. GV is also listed as an existing backer. We previously covered another AI sales startup, Nooks, which secured $500M in growth capital, and Clay’s $115M Series D.