Leonard Green & Partners (LGP) completed its purchase of Cumming Group from New Mountain Capital. The deal, whose financial terms remain private, adds a consultancy that serves more than 4,000 clients, including 41 Fortune 100 companies, to LGP’s growing infrastructure portfolio. The acquisition strengthens LGP’s presence in the built‑environment services market and expands its reach into high‑margin advisory projects.

Cumming Group, founded in 1996, has built a reputation for guiding complex construction programs for multinational corporations. Its client roster spans sectors from energy to technology, leveraging a blend of cost‑control tools and risk‑management frameworks. By integrating Cumming’s platform, LGP aims to capture recurring fee‑based revenue and cross‑sell to its existing private‑equity portfolio companies. The move also positions LGP to compete for advisory mandates.

Without disclosed price, the transaction signals LGP’s willingness to pay premium for niche service firms that can generate stable cash flows. Investors will watch whether the integration delivers margin expansion for LGP’s infrastructure fund, which has recently raised capital for large‑scale projects. The acquisition immediately adds a robust pipeline of high‑value contracts to LGP’s balance sheet and strengthens its competitive edge.