Sevii

Sevii is a cybersecurity firm that has developed an Autonomous Defense and Remediation (ADR) platform. The company is headquartered in Charlotte, North Carolina. In April 2025, Sevii announced the closure of its pre-seed funding round, which was led by Overline with participation from 10VC and SaaS Ventures. The funds are intended to accelerate platform development, support go-to-market strategies, and expand its team of AI and cybersecurity experts.

The company was co-founded by CEO Curt Aubley and CTO Stephen Collins. Aubley has stated that Sevii's mission is to empower defenders with autonomous cyber agents that can act and adapt in real-time to counter AI-enhanced adversaries. The firm's core product is its ADR platform, which deploys what it calls a "cyber army" or "Cyber Warriors"—autonomous AI agents designed to handle cyber threats at machine speed. This system operates without requiring direct human intervention for every action, aiming to neutralize threats before they can escalate. The platform integrates with existing security tools and platforms, such as those from CrowdStrike, to reduce the mean time to remediate (MTTR) and lessen the operational load on security teams. By automating the triage, investigation, and remediation process, Sevii's platform is designed to scale in response to increasing attack volumes, thereby reducing the need for clients to hire more staff or outsource security operations.

Keywords: Autonomous Defense and Remediation, ADR, agentic AI, cybersecurity, threat remediation, cyber defense, autonomous agents, security automation, incident response, real-time threat neutralization, SOC automation, cyber threat management, AI-powered defense, security operations, threat hunting, machine-speed remediation, Overline, Curt Aubley, threat triage, cloud security