ARTHEUS LLC

Capabilities

Artheus LLC (Vienna, VA) builds decision-grade AI that agencies can sign for, from their own documents and data, proven before anyone depends on it. Services: grounded AI assistants and agents that answer only from approved sources and cite the passage behind each answer; AI test, evaluation and assurance, with locked tests on held-out data and evidence for the official who accepts the risk; AI governance and readiness (NIST AI RMF, OMB M-25-21 and M-25-22); document-to-model digital engineering with every element traced to its source; data readiness and pipelines; zero trust, NIST SP 800-171 and CMMC readiness; verified-comprehension workforce training. Systems run where the data must live, including sites with no internet. Small business, self-certified SDB, nontraditional defense contractor, CMMC Level 2 (Self), SPRS 110/110, JCP certified. Founder: 25+ years in defense and federal technology. Prime or subcontractor.