Id129
The Ariane 5 was launched at the ELA-3 which is operated by Arianespace and located at the Guiana Space Centre which has its HQ at Kourou, French Guiana.
Guiana Space Centre | location | French Guiana Guiana Space Centre | headquarter | Kourou, French Guiana ELA-3 | site | Guiana Space Centre Ariane 5 | launch site | ELA-3 ELA-3 | operator | Arianespace