MAM-Bau joins Circet Deutschland

Paris, 5 th June 2023 – Circet, the leading provider of telecom infrastructure services in Europe today announces the acquisition of MAM-Bau GmbH & Co. KG, one of the largest private telcofocused civil engineering companies in North Rhine-Westphalia (Germany).

MAM-Bau was founded in 2016 by Musa, Ali and Mehmed Hyseni to provide specialist engineering services to telecom carriers. The company, headquartered in Ibbenbüren, currently employs c.80 people, manages over 400 people as subcontractors and generated over €50 million in revenues in 2022.

Michael Hegemann, CEO of Circet Deutschland: “The addition of MAM-Bau provides Circet Deutschland with enhanced technical capabilities and geographic coverage in the dynamic German FTTH construction market. We are very excited to welcome Musa, Ali, Mehmed and all MAM-Bau employees to drive additional value to our customers and complement our turnkey services offering.”

Hyseni brothers, founders and managers of MAM-Bau, expressed their enthusiasm about the sale and the future cooperation: "This marks a significant step for the founders of MAM-Bau GmbH & Co. KG and allows us to drive our vision of nationwide availability of high-speed fiber networks in Germany as part of a strong team.

We are convinced that the future cooperation within the Circet Group will give us the opportunity to strengthen our position as a group in the market and to offer our customers an even better service."


Circet is the leading network infrastructure services provider in Europe. The company operates in the fast-growing network infrastructure services market, supported by massive investments for rolling out fixed and mobile super-fast broadband. As the leader in Europe (notably in France, the United Kingdom, Ireland, Germany, Italy, Spain, Belgium, and the Netherlands), Circet’s customer base includes the leading telecom operators (Orange, Altice, Iliad, British Telecom, Eir, Deutsche Telekom, Telefonica, Vodafone, Proximus, KPN, TIM, Open Fiber, AT&T, Verizon, among others), local authorities and companies specializing in rural deployment to bridge the digital divide, and key government-owned and private companies that own infrastructure. Circet is present in 14 countries, with pro forma revenues in excess of €3.5bn in 2022 and over 15,000 employees.