Legion Security vs Dropzone AI
Legion Security
Legion Security helps enterprise security teams scale detection, investigation and response using agentic AI. The platform learns from the real workflows security teams already run, across the SOC and beyond, and turns that institutional knowledge into agentic playbooks the team can trust and audit. This lets organisations adopt frontier AI models gradually while preserving operational trust, cutting manual effort and building toward autonomous security capabilities. Rather than depending on API integrations, Legion combines vision models with other methods to observe how practitioners actually work, so teams can codify those processes as they are or optimise them into transparent, inspectable agentic workflows, extending the same approach beyond the SOC to security operations across the enterprise. Legion Security has offices in New York and Tel Aviv and is backed by Coatue, Accel and Picture, with investors from Island, CrowdStrike, Wiz and Google DeepMind. The company was founded in 2024 by former Microsoft Sentinel team members and emerged from stealth in July 2025.
Pros
- Raised $38M total: an $8M seed led by Picture Capital and Accel, and a $30M Series A led by Coatue (Calcalist, Fortune)
- Founding team includes former members of Microsoft's Sentinel product, per Calcalist
- Browser-based deployment is designed to avoid custom API integration work, per the company
- Customers cited on the vendor site report outcomes such as an 81% reduction in MTTI/R (WELL Health Technologies, vendor-cited)
Pricing:
Dropzone AI
Dropzone AI provides an AI SOC analyst that autonomously investigates security alerts end to end, covering phishing, endpoint, network, cloud, identity and insider threat alert types, and presents its reasoning and evidence in each report. It is delivered as SaaS and connects to an existing security stack through API integrations, with the company stating deployment takes about an hour and requires no playbooks or coding. The company was founded in 2023 by Edward Wu and is based in Seattle.
Pros
- Raised a $16.85M Series A led by Theory Ventures with participation from Decibel Partners, Pioneer Square Ventures and In-Q-Tel (Pulse2)
- Raised a further $37M round in 2025, per GeekWire coverage
- Finalist in the 2024 RSAC Innovation Sandbox Contest (Pulse2)
- Publishes a starting price, which is uncommon among AI SOC vendors
- A customer CISO (Lemonade Insurance) reported resolving issues in a fraction of prior time (Pulse2)
Pricing: Published pricing starts at $36,000 per year for 4,000 investigations, with cost tied to investigation volume rather than seats (per official site)