O'Callaghan Moran Ltd

O'Callaghan Moran & Associates is a trusted Irish environmental consultancy that has been delivering specialist advice since 1997. Following its recent acquisition by ORS, the original team - still led by Sean Moran (Contaminated Land and Hydrogeology) and Jim O'Callaghan (Environmental Licensing) - now benefits from ORS's nationwide reach while retaining the personalised service clients have come to rely on.

The firm's core expertise covers the full lifecycle of environmental management. It provides contaminated-land assessment and remediation, high-quality Environmental Impact Assessments for land, geology and water, and detailed hydrogeological and hydrological studies. O'Callaghan Moran also conducts environmental due-diligence investigations, prepares and manages regulatory consents such as Industrial Emissions and Integrated Pollution Control licences, and offers ongoing compliance monitoring and audit services.

With a portfolio that includes renewable-gas facilities, major road schemes, data-centre licensing and flood-risk assessments, O'Callaghan Moran serves a diverse range of developers, infrastructure owners and blue-chip industrial clients across the Republic of Ireland, delivering practical, compliant solutions that protect the environment and support sustainable development.