Startup · Conduct Risk and Complaints
Hadrius
Hadrius is a compliance platform for SEC- and FINRA-regulated financial firms that unifies marketing review, communications and account surveillance, people oversight and testing in one system. Based in New York.
What it does
Marketing review, communications surveillance, account surveillance, people oversight, testing program
Named customers
Lifemark SecuritiesStirlingshire InvestmentsTwenty Five CapitalFrecRepublicArrivedCsenge Advisory GroupMainvestSilo
Rules covered
SEC/FINRA communications recordkeeping and reviewSEC Marketing Rule reviewAnnual compliance testing program-7)Personal trading / people oversightAccount surveillance
Why it matters
Hadrius raised $27m in seed and Series A funding in July 2026, led by CRV. Its customers include Lifemark Securities, Stirlingshire Investments and Frec, and it covers the SEC Marketing Rule and Rule 206(4)-7 testing.
