Streamstown Moulding Company Ltd (SMC) is an Irish-owned plastic injection moulding manufacturer founded in August 1997. Based in Streamstown near Mullingar, County Westmeath, the company operates an ISO 9001:2015-certified production plant running 24 hours a day, 5 to 7 days a week across three shifts.
SMC delivers custom moulded plastic components and assemblies for domestic and international clients in the automotive, healthcare, electronics, fenestration, agricultural, and construction industries, as well as proprietary products such as Agrablock sustainable urban drainage systems.