›[C]a company that gives expert advice on a particular subject: He is leaving the company after 15 years to set up a consultancy.a business/management/recruitment, etc. consultancyShe was the creative director at a media consultancy.
›[U]the activity of giving expert advice on a particular subject: It provides a range of educational services to the state, including school inspections and consultancy.a consultancy company/firm/groupconsultancy work/servicesHe does part-time consultancy work. → See alsofinancial consultancy, internal consultancy