Hera Group acquires control of SEA
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Through Herambiente Servizi Industriali, national leader in industrial waste treatment, the multi-utility increases its stake in the Ancona-based operator to 83%. A significant opportunity for the local area, with employment expected to double

Hera Group further consolidates its leadership in industrial waste treatment following the acquisition by Herambiente Servizi Industriali (HASI) of a controlling stake in Servizi Ecologici Ambientali (SEA), based in the province of Ancona. SEA operates a multi-functional platform for the storage and treatment of special waste located in Camerata Picena (Ancona). Today’s transaction concerns the 52% share capital of SEA held by Fermas (owned by the Massi family), in addition to the 31% already acquired by HASI in 2021. HASI (a subsidiary of Herambiente, which in turn is part of the Hera Group) therefore increases its total holding in SEA to 83%. The current ownership, represented by Chairman and Chief Executive Officer Alessandro Massi, will remain within the new corporate structure with key operational responsibilities, and the existing management team will also remain in place.
Revamping: a technologically advanced investment with very low environmental impact and positive employment effects
The transaction finalised today forms part of the framework agreement signed by the parties in 2021 and follows SEA’s receipt of authorisation to carry out a full revamp of the Camerata Picena plant, creating a centre of environmental excellence for Central Italy. Once operational, the new hub will have a significant positive impact on local employment, with the workforce almost doubling. In addition to the increasing of staff numbers, consideration should also be given to the economic impact generated by the planned investments and the involvement of consultants and third-party companies that will collaborate both during the construction phase and in the operation of the new facility.
Operational details of the revamp. Completion by 2031
The project, scheduled to commence by the first half of 2026, will be developed using Best Available Techniques (BAT) and will prioritise material recovery from industrial waste, in line with European Union circular economy principles. The aim is therefore not to dispose of more waste, but to dispose of it better – transforming waste into a resource. The new project will also ensure energy independence and significantly reduce environmental impacts by deploying best-in-class technologies across all areas of the new installation.
Hera Group’s recent development in the environmental sector
With SEA, Hera Group continues its growth trajectory in the environmental sector. In the past 12 months alone, this has included the acquisition of Ambiente Energia (industrial wastewater treatment) and Gerotto EAR (a business unit specialising in remediation and industrial cleaning, integrated into ACR Reggiani). These transactions follow the binding agreement signed on 19 January for the acquisition of the Sostelia Group (water treatment plant construction). They add to the M&A transactions completed in recent years involving, among others, Recycla (Friuli), Vallortigara (Vicenza), ACR Reggiani (Modena) and TRS (Piacenza), pursuing a development strategy aimed at strengthening both specialist know-how and local presence for the benefit of customers. Thanks to this strategy, Herambiente is now Italy’s leading provider of environmental services for both municipal and industrial waste, treating over 8 million tonnes of waste through a network of around 100 certified facilities.
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Press release
Asset Publisher
Hera Group acquires control of SEA
Through Herambiente Servizi Industriali, national leader in industrial waste treatment, the multi-utility increases its stake in the Ancona-based operator to 83%. A significant opportunity for the local area, with employment expected to double

Hera Group further consolidates its leadership in industrial waste treatment following the acquisition by Herambiente Servizi Industriali (HASI) of a controlling stake in Servizi Ecologici Ambientali (SEA), based in the province of Ancona. SEA operates a multi-functional platform for the storage and treatment of special waste located in Camerata Picena (Ancona). Today’s transaction concerns the 52% share capital of SEA held by Fermas (owned by the Massi family), in addition to the 31% already acquired by HASI in 2021. HASI (a subsidiary of Herambiente, which in turn is part of the Hera Group) therefore increases its total holding in SEA to 83%. The current ownership, represented by Chairman and Chief Executive Officer Alessandro Massi, will remain within the new corporate structure with key operational responsibilities, and the existing management team will also remain in place.
Revamping: a technologically advanced investment with very low environmental impact and positive employment effects
The transaction finalised today forms part of the framework agreement signed by the parties in 2021 and follows SEA’s receipt of authorisation to carry out a full revamp of the Camerata Picena plant, creating a centre of environmental excellence for Central Italy. Once operational, the new hub will have a significant positive impact on local employment, with the workforce almost doubling. In addition to the increasing of staff numbers, consideration should also be given to the economic impact generated by the planned investments and the involvement of consultants and third-party companies that will collaborate both during the construction phase and in the operation of the new facility.
Operational details of the revamp. Completion by 2031
The project, scheduled to commence by the first half of 2026, will be developed using Best Available Techniques (BAT) and will prioritise material recovery from industrial waste, in line with European Union circular economy principles. The aim is therefore not to dispose of more waste, but to dispose of it better – transforming waste into a resource. The new project will also ensure energy independence and significantly reduce environmental impacts by deploying best-in-class technologies across all areas of the new installation.
Hera Group’s recent development in the environmental sector
With SEA, Hera Group continues its growth trajectory in the environmental sector. In the past 12 months alone, this has included the acquisition of Ambiente Energia (industrial wastewater treatment) and Gerotto EAR (a business unit specialising in remediation and industrial cleaning, integrated into ACR Reggiani). These transactions follow the binding agreement signed on 19 January for the acquisition of the Sostelia Group (water treatment plant construction). They add to the M&A transactions completed in recent years involving, among others, Recycla (Friuli), Vallortigara (Vicenza), ACR Reggiani (Modena) and TRS (Piacenza), pursuing a development strategy aimed at strengthening both specialist know-how and local presence for the benefit of customers. Thanks to this strategy, Herambiente is now Italy’s leading provider of environmental services for both municipal and industrial waste, treating over 8 million tonnes of waste through a network of around 100 certified facilities.
For further information
Press release