Ricardo-AEA Ltd, trading as Ricardo Energy & Environment, is a UK-based engineering company. At its height, it was the largest specialised environmental consulting firm in the UK.

Ricardo-AEA was formed on 8 November 2012 when Ricardo acquired the business, operating assets and employees of AEA Technology Plc (also known as AEAT and AEA Europe) for £18 million. At the time, AEA Europe's operational staff numbered around 400, located at five UK sites. Within a year,