The European Space Agency, or ESA, was a Human space exploration organization in the 20th century based in Europe. The founding members were Belgium, Denmark, France, Germany, Great Britain, Ireland, Italy, Netherlands, Spain, Sweden, and Switzerland. The Ariane rocket was used by the organization for placing satellites and space probes into space. The agency's insignia was displayed in the 602 Club in 2143. (ENT: "First Flight")
- Many of the nations listed here would be members of the International Space Agency in the 21st century. (VOY: "One Small Step")