An ADR service is a provider or scheme offering alternative dispute resolution processes-such as mediation, arbitration, conciliation, adjudication, ombudsman investigations or early neutral evaluation-to help parties resolve disputes without court proceedings.The phrase is descriptive rather than a term of art. In the consumer context, it aligns with defined concepts: in the UK, the Alternative Dispute Resolution for Consumer Disputes Regulations 2015 refer to “ADR entities” and “ADR procedures”; in Ireland, the European Union (Alternative Dispute Resolution for Consumer Disputes) Regulations 2015 contain equivalent definitions. Outside consumer law, usage is broad across civil, commercial and sectoral disputes (for example, the Financial Ombudsman Service, Acas/Labour Relations Agency conciliation, construction adjudication, and arbitral institutions).Key features typically include independence/neutrality, a defined procedure, confidentiality, and outcomes ranging from non-binding (mediation) to binding and enforceable (arbitration awards; certain ombudsman decisions binding on traders). ADR services are often engaged under contracts, pre-action protocols or court directions.Practical significance: courts in England and Wales may stay or direct non-court dispute resolution (see Churchill v Merthyr Tydfil CBC), with adverse costs risks for unreasonable refusal; similar encouragement exists in Scotland and Northern Ireland. In Ireland, the Mediation Act 2017 and court rules promote ADR. Usage is broadly consistent across the four jurisdictions.