Deutsche Beteiligungs (DBAG) takes majority stake in TNL Gruppe

The investment fund Deutsche Beteiligungs AG, through its DBAG ECF IV vehicle, signed a definitive agreement to acquire a majority stake in TNL Gruppe, a specialist provider of environmental planning, permitting consultancy and construction services for energy and traffic infrastructure projects. The transaction, executed as a management buy‑out, was originated bilaterally via DBAG’s mid‑market network and is the eighth DBAG deal concluded across all investment strategies in the past nine months. Completion is subject to regulatory clearance; the parties have elected not to disclose the purchase price. Founder and Co‑Managing Director Frank Bernshausen, together with other senior managers, will reinvest a substantial equity portion, reinforcing the continuity of the management team that has built TNL into a recognised “hidden champion” serving Germany’s four transmission system operators. DBAG will become the new majority shareholder, adding a resilient business model that sits at the intersection of two political megatrends – mobility and the energy transition – to its portfolio. Strategically, DBAG aims to leverage TNL’s high‑visibility order pipeline and its long‑term master agreements to accelerate organic growth and to pursue selective add‑on acquisitions. The plan includes expanding the company’s presence among distribution network operators, entering the railway infrastructure segment, and developing capabilities in soil renaturation, climate‑change adaptation and mitigation, as well as water‑management services. To support this roadmap, DBAG intends to invest in IT, process optimisation and talent development, while establishing an advisory board to guide the next phase. The German market for transmission and traffic infrastructure is structurally attractive, with the Network Development Plan mandating significant grid extensions and the national climate agenda fostering large‑scale renewable projects such as SuedLink and Rhein‑Main‑Link. TNL’s established relationships with the four transmission system operators and its expertise in navigating complex permitting processes provide a defensible moat, which aligns with DBAG’s focus on non‑cyclical, high‑margin businesses. The target generated a revenue of €25–50M in 2025, reflecting the double‑digit annual growth of its core market since 2020. By securing a controlling position, DBAG positions itself to capture the rising demand for qualified environmental planning services driven by the expansion of Germany’s transmission grids under the Network Development Plan and the broader push for renewable energy infrastructure.

By taking control of TNL Gruppe, Deutsche Beteiligungs continues its expansion strategy. Previously, the group had completed 3 acquisitions, including Signal Fisher Ex Bug Bountry in 2026.