Controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2025
Supplier-payment and subcontractor concerns
Investigations by Temps Présent and Radio Télévision Suisse examined alleged payment delays and the bankruptcy of subcontractors working in Implenia’s supply chain. The company responded that its procurement organization was well structured and that it maintained long-term relationships with many suppliers, subcontractors and partners.
2022
Reports concerning SISAG
Reports about SISAG, an Implenia-owned granite quarry in Côte d’Ivoire, described alleged sexual harassment and management dysfunction. The available reference material does not establish the ultimate legal or organizational outcome.
2021
Letzigrund Stadium construction-defect dispute
Construction of Zurich’s Letzigrund Stadium, completed under significant time pressure before the 2008 European Football Championship, was followed by allegations concerning cracks and defective welds in steel roof girders. Implenia disputed the characterization of the problem, while the city arranged additional roof supports at its own expense because of safety concerns. After roughly a decade of proceedings, the matter ended in a 2021 court settlement in which both parties waived outstanding claims.