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Overview
Arkenstone Systems, LLC is an ESAC-accredited PEO based in Menlo Park, California. ESAC's listing for it links to Arkenstone Defense, which launched in July 2026 to give technology companies selling to the U.S. government a back office for compliance, HR and contracting. Arkenstone's site describes two services: Foundation, for federal contracting compliance and audit readiness, and Cohort, for workforce, payroll and labor compliance. Its customers are defense-technology, dual-use and other federal contractors. If you don't do federal work, ask whether it takes clients outside that market. Its site does not list a minimum headcount or the states it covers.
Services
Coverage
Key Differentiators
- ✓Built for defense-technology, dual-use and other federal contractors
- ✓Two services: Foundation (federal contracting compliance) and Cohort (workforce, payroll and labor compliance)
- ✓Launched publicly in July 2026
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