Who we are


Serioplast is the largest Italian supplier and a worldwide leader in the production of customised, rigid plastic bottle packaging for the largest multinational brands in the mass consumer goods markets. The company is part of the larger packaging group, Old Mill Holding, that provides a fully integrated rigid plastic packaging service for our clients: plastic bottle production; research, design and innovation; and bulk filling contract services.

Sister Companies


Seriomac is the engineering hub of the Group and its activities include design, construction, supply and maintenance of blow-moulding machines and technology for the operative units within the Group.


Seriomould is the mould design and development hub of the Group and it its activities include manufacturing and testing of EBM and SBM moulds, as well as technical support, for all Serioplast plants.

Well Manufacturing 

Contract manufacturing for liquid filling (liquid bulk making, filling and packing operations) integrated with bottle production in emerging countries. It represents the bridge to help our customer localize small scale production.


Our values

Our values

We aim to continually:

• Provide a reliably fast and flexible service

• Promise market-leading, innovative solutions

• Produce the perfect product at a competitive price


Code of Conduct

Our Strategy

Our Strategy
Serioplast is dedicated to consistently providing a fast, flexible and innovative service to our clients – always achieving a high-quality product at a competitive price.

We seek long-term, transparent business partnerships with the objective of strong, sustainable growth alongside our clients.