Cove Hill Partners, a long-term oriented private equity firm, invested in Clearlake-backed NetDocuments, a cloud-based document and email management service. Financial terms were not disclosed. "Cove Hill is excited to partner with the strong management team at NetDocuments and to join Clearlake as investors in the Company. As the premier secure cloud-based content services platform, NetDocuments represents a unique investment opportunity to drive growth over the long-term with a market-leading business," Justin Roberts, Cove Hill Co-Founder, and Partner.