Certa (oil)
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Certa Ireland is an Irish fuel and energy brand that is based in Portlaoise, Republic of Ireland. They operate in Northern Ireland under the Emo brand.<ref name=emo.ie/> Certa Ireland is owned by DCC Plc. The Certa brand was introduced in September 2022 out of the amalgamation of the former Irish brands, Jones Oil, Emo Oil, Campus Oil, CC Lubricants and Source Lubrication Solutions.<ref>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref><ref name=RebrandsRTE>Template:Cite news</ref>
They supply fuel, oil, lubricants, HVO and Solar PV solutions to residential and commercial customers.
Operations in the Republic of Ireland
Certa Ireland operates out of several regional depots and petrol filling stations throughout the Republic of Ireland. Emo significantly expanded its operations in 1999, to include retail from filling stations with the purchase of the Burmah Fuels filling station network.
DCC plc purchased the filling station operations of Tesco Ireland in 2020, which are now branded under Certa as part of its Pay @ Pump network.<ref>Template:Cite news</ref>
Certa Ireland supplies all grades of oil to several sectors including distributors, petrol stations, commercial enterprises and direct to home heating oil users. The current managing director of Certa Ireland is Orla Stevens.
Operations in Northern Ireland
In Northern Ireland, Certa operate the Emo Oil brand name.
In 2011, DCC Energy bought Maxol Direct, the home heating side of Maxol in Northern Ireland,<ref name=acquiresmaxol>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> which was then incorporated into Emo Oil by 2012.<ref name=rebrand>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Renewable Energy
In recent years Certa have expanded operations into renewable energy solutions, through the acquisition of Alternative Energy Ireland in 2023 <ref name=AEIAcquisition>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref> and its rollout of Hydrotreated vegetable oil (HVO). Certa supply HVO to commercial businesses as well as at its forecourts at the pump after opening Irelands first biofuel station in Liffey Valley. It now sells HVO at 12 of its forecourts and depots.
In 2012 Certa announced the launch of a home heating product for oil burning homes that blends HVO and Kerosene to produce a lower carbon alternative for home heating.<ref name=Ecomax>{{#invoke:citation/CS1|citation |CitationClass=web }}</ref>
Sponsorships

Certa are the title sponsor of the Ireland Women's Cricket team since 2023.
Certa sponsor the National Ploughing Championships and Bord Bia Bloom, both as Sustainability Partner.