Ludger Rethmann is the second child of entrepreneur Norbert Rethmann (*1939) and grandson of Josef Rethmann.[2] He grew up together with his three brothers in a Catholic business family in Selm.[3][4][5]
Ludger Rethmann studied business administration in Münster and graduated asDiplom-Kaufmann. He is married with two children.[6]
After studying business administration in Münster, he joined Rethmann Entsorgung (today: Remondis SE & Co. KG) in Lübeck shortly before German reunification. At the beginning of the 1990s, he devoted himself in particular to business development in Germany's new federal states, and later to the development of international business.[6] In 1994, he was appointed to the management boards of both Rethmann SE & Co. KG as well as Remondis SE & Co. KG (previously: Rethmann Entsorgung AG & Co. KG).[7] Remondis is active in the business areas of water management, industrial and municipal services and recycling. In 2000, Ludger Rethmann became spokesman of the board[8] and then in 2008 Chairman of the Board of Remondis SE & Co. KG.[9] In the sister companies belonging to the Rethmann Group, Rhenus SE & Co. KG andSaria SE & Co. KG, he holds supervisory board mandates. In 2019, Ludger Rethmann was also appointed Vice President of the internationally active, French Transdev Group,[10] after the Rethmann family business acquired 30% of the shares in Transdev from Veolia and has held 34% of the shares after the contribution of the public transport activity Rhenus Veniro.[11] On 1 July 2025, the acquisition of a further 32% stake in Transdev was announced. Rethmann thus became the majority shareholder of the Transdev Group.[12]
Michael Schäfer, Ludger Rethmann:Public-Private Partnerships: Auslaufmodell oder eine Strategie für kommunale Daseinsvorsorge?, Springer Gabler, Wiesbaden 2020, ISBN 978-3-658-28273-8.
Michael Schäfer, Ludger Rethmann:Public-Private Daseinsvorsorge (ÖPD) in Deutschland: Gemischtwirtschaftliche Unternehmen auf kommunaler Ebene als strategischer Erfolgsfaktor, Springer Gabler, Wiesbaden 2020, ISBN 978-3-658-31100-1.
Ludger Rethmann:Overcapacity in the Household and Hazardous Waste Incineration Market - Strategy of Remondis AG & Co. KG. In: Karl J. Thomé-Kozmiensky, Michael Beckmann (eds.):Energy from Waste. Vol. 13. TK-Verlag, Neuruppin 2016, ISBN 978-3-944310-24-4.
Ludger Rethmann:Transport of hazardous waste. A comparison rail/road from a waste management and dangerous goods law perspective, Erich Schmidt Verlag, Berlin 1989, ISBN 978-3-503028313.
^abcRethmann, Ludger; Schäfer, Michael (2020).Öffentlich-Private Partnerschaften: Auslaufmodell oder eine Strategie für kommunale Daseinsvorsorge? [Public-Private Partnerships: Discontinued Model or a Strategy for Municipal Services of General Interest?] (in German). Wiesbaden:Springer Gabler. p. XVIII.ISBN978-3-658-28273-8.
^RETHMANN-GRUPPE / Umsatz gesteigert - Investitionen bleiben auf hohem Niveau. Entsorger will Auslandsgeschaeft ausbauen.,Handelsblatt No. 012, 17 January 1995, p. 13
^Rudolf Eickeler:Der Mülliardär aus dem Münsterland,Handelsblatt No. 186, 24 September 2004, p. 22
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