Cirium

Cirium is a leading global provider of aviation data and analytics, tracking flight status, fleet, MRO, and market intelligence data across the industry. Airlines, lessors, OEMs, and MROs use Cirium's data to inform network planning, fleet valuation, and operational decision-making.

Cirium is an aviation data and analytics business within LexisNexis Risk Solutions, part of RELX, formed from the Ascend and Flightglobal data assets. It supplies fleet and aircraft data, schedules, flight status and on time performance, passenger traffic, aeronautical information, and emissions analytics through EmeraldSky. Ascend Consultancy adds aircraft valuations, appraisals and advisory work used by lessors, lenders and investors. Buyers include airlines, airports, lessors, manufacturers, travel companies and financial institutions, and Cirium states it serves more than 1,600 customers.