About CoAssessor

CoAssessor is a comprehensive, AI-powered platform designed to streamline every phase of the NIST SP 800-53 security control assessment lifecycle. Whether you're conducting an initial Authorization to Operate (ATO) assessment, an annual review, or a FedRAMP third-party assessment, CoAssessor gives you the tools to work faster and produce higher-quality deliverables.

The platform provides a complete NIST SP 800-53 Rev 5 control library with plain-language translations, an AI-powered control gap analysis engine, an evidence management system with automated sufficiency scoring, and a SAR-style write-up generator that produces assessment report content in seconds. Assessors can manage multiple assessment sessions, upload and analyze artifacts, track findings, and generate executive-ready reports — all within a single integrated workspace.

CoAssessor also includes an AI chat assistant trained on NIST publications and FedRAMP guidance, allowing assessors to ask specific assessment questions and receive authoritative, context-aware answers at any time. Built-in community forums and expert-led training courses round out the platform, helping practitioners continuously sharpen their skills and stay current with evolving compliance frameworks.

CoAssessor is built by a team of cybersecurity professionals and software engineers with deep expertise in federal information security, RMF implementation, FedRAMP authorization, and AI-assisted automation. Our founders have worked directly in federal compliance environments and experienced firsthand the inefficiencies of manual assessment workflows — the hours spent formatting write-ups, searching for control guidance, and tracking evidence across spreadsheets.

Our mission is simple: make rigorous security assessment work more efficient, consistent, and defensible. We believe that by automating the tedious parts of assessment work, we free practitioners to focus on the analysis and judgment that truly matters — and ultimately helps protect the federal information systems that millions of people depend on every day.