युरोपीय अंतराळ संस्था (EuropeanSpaceAgency (ESA) (इसा)) ही संयुक्त युरोपीयन देशांनी एकत्र येऊन स्थापलेली अंतराळ संशोधन करणारी संस्था आहे. इसा "इसा बजेट
Office for Outer Space Affairs (OOSA) इसा- EuropeanSpaceAgency (ESA) नासा- National Aeronautics and Space Administration इस्रो- Indian Space Research Organisation
Cospas-Sarsatचा,International Astronautical Federation,Committee on Space Research,Inter-AgencySpace Debris Coordination Committee व Committee on Earth Observation
organisations coordinate their efforts. ISNI is governed by an 'International Agency', commonly known as the ISNI-IA. This UK registered, not-for-profit company