Estuaire

Estuaire is an aviation climate intelligence company that provides environmental data to help the industry measure and reduce its climate impact. Its platform analyzes CO₂, NOx, contrails, and aircraft lifecycle effects, combining flight trajectories with weather, aircraft, and payload information. Estuaire says it analyzes around 40 million commercial and business aviation flights each year and tracks more than 99.8% of commercial flights.

Its offerings include an environmental data platform and contrail mitigation APIs, with information organized by factors such as date, aircraft, operator, airport, engine, and owner. Airlines can use the data to monitor non-CO₂ effects, prepare for reporting requirements, and explore flight paths that reduce fuel use and contrails. Airports can assess aircraft-related emissions and ground activity, while aviation finance organizations can monitor financed emissions and portfolio alignment. Aircraft manufacturers can evaluate the climate impact of in-service fleets and develop replacement scenarios.

Estuaire also publishes aviation sustainability resources, including datasets, indexes, regulatory guidance, and industry analysis. Its services support organizations seeking more informed sustainability planning and reporting.