Traversal raises $120 million at $1 billion for AI site reliability

Traversal's round comes roughly a year and a half after it emerged from stealth with $48 million in June 2025, and the investor list shows continuity: Kleiner Perkins and Sequoia Capital both increased their investments in the Series B. A strategic Amex Ventures investment in December 2025 preceded the round, which was co-led by Kleiner Perkins, Redpoint Ventures and Khosla Ventures, with Battery Ventures and Amex Ventures also participating.

The product story has widened since the company's founding around incident root-cause analysis. Traversal formally introduced its Production World Model and Causal Search Engine in March 2026 after nearly two years of research, and it says roughly two-thirds of product usage now extends beyond root-cause analysis into areas such as alert triage, release risk and security. The $120 million is aimed at accelerating work toward self-driving production systems and expanding hiring across research, engineering and go-to-market roles.

The ORCA-bench paper, by researchers affiliated with Cornell Tech, Traversal and Columbia University, sets a boundary around that ambition. Its 1,079 tasks were built from six days and more than 50 GB of metrics, logs and traces, and the best general-purpose agent reached 25.3% accuracy on medium-difficulty tasks. The authors note the results come from a controlled public testbed and do not measure Traversal's own production performance, leaving open whether the causal system can take corrective action and verify outcomes across complex customer environments.