Adlumin, a security operations platform and managed detection and response (MDR) provider, has closed a $70 million Series B funding round.

The funding was led by SYN Ventures and included participation from First In Ventures, Washington Harbour Partners, and BankTech Ventures. This brings the company’s total funding to $83 million.

Adlumin provides enterprise-grade security operations platform and managed detection and response services for mid-market organizations. The company is based in Washington, D.C.