Case Study: Thomas H. Lee Partners (THL) achieves standardized 24/7 threat detection and reduced cyber risk across 35+ portfolio companies with eSentire MDR

How a Leading Private Equity Firm Uses Managed Detection and Response (MDR) to Standardize Risk Management Across 35+ Portfolio Companies

THL (Thomas H. Lee Partners) is a Boston-based private equity firm that invests in 35+ mid-market growth companies. Facing pervasive cyber risk from attackers who target smaller, less mature portfolio companies, THL needed standardized visibility, 24/7 detection and response, and employee security awareness without slowing growth. To meet those needs, THL engaged eSentire to provide Managed Detection and Response (MDR) along with Exposure Management and Managed Phishing/Security Awareness services.

eSentire deployed 24/7 MDR across THL’s 35+ portfolio companies, onboards new assets at close, and provides a rolling monthly dashboard and metrics for consolidated visibility. The result: consistent security posture and faster identification, containment and response to advanced threats, trusted pre‑deal security guidance, and measurable improvements in cyber resilience—allowing THL’s management teams to focus on growth while eSentire provides continuous “eyes on glass” and network‑wide protection.

THL

Mark Benaquista

Managing Director