Obsidian Security raises $85M at $1.1bn to secure agents inside third-party SaaS
The Series D values the company at $1.1 billion post-money and funds a specific problem: agents acting inside applications the enterprise does not own or control. The category barely existed eighteen months ago.
The problem is structural rather than novel. An agent granted access to a SaaS application inherits that application's permissions, and the security team's visibility ends at the tenancy boundary. Traditional monitoring assumes a human actor with a session; an agent behaves nothing like one.
A billion-dollar valuation for that specific slice tells you where enterprise agent deployment actually is. Companies do not buy monitoring for pilots. They buy it when agents are in production against systems of record and someone in the risk function has asked a question nobody could answer.
It also arrives ahead of the science. DeepMind is still funding the basic research into what multi-agent failure even looks like. The market has decided it cannot wait for the answer.
Axios Pro — Obsidian Security raises at $1.1B valuation → · TechCrunch — Coralogix raises $200M in race to build the monitoring layer for AI agents →