Madegan: Andersen Advises on Acquisition of Assets by PreZero
Deal News | Apr 11, 2025 | Iberian Lawyer

Andersen has provided legal advice to PreZero in the acquisition of assets from Madegan S.A., as part of PreZero Group's strategic expansion plan in the industrial waste management and treatment sector. This acquisition will enable PreZero to consolidate its geographical presence in Madrid and Castilla-La Mancha, enhancing logistical and commercial synergies. PreZero is a leader in providing advanced solutions in urban services, waste treatment, and circular economy in Spain and Portugal, serving nearly a thousand municipalities. Madegan is recognized for its role in hazardous and non-hazardous waste transportation and management of solid industrial waste. The legal advice by Andersen, led by partners in the Corporate/M&A area, covered all transaction phases, including due diligence, contract negotiation, and formalization.
Sectors
- Waste Management
- Legal Services
Geography
- Spain – Both PreZero and Madegan operate in Spain, with the acquisition expected to strengthen PreZero’s presence in Madrid and Castilla-La Mancha.
- Portugal – PreZero operates in Spain and Portugal, emphasizing the regional influence of its service offerings.
Industry
- Waste Management – The acquisition occurs within the industrial waste management and treatment sector, focusing on hazardous and non-hazardous waste and circular economy services.
- Legal Services – Andersen provided legal advice for this transaction, highlighting the role of legal services in M&A activities.
Financials
Participants
Name | Role | Type | Description |
---|---|---|---|
PreZero | Bidding Company | Company | Leading company in environmental services, focusing on waste management and treatment in Spain and Portugal. |
Madegan S.A. | Target Company | Company | A prominent company in hazardous and non-hazardous waste transportation and management of Solid Industrial Waste. |
Andersen | Legal Advisor | Company | Provided legal advice to PreZero for the acquisition of Madegan's assets, covering all phases from due diligence to contract formalization. |