Other Conferences in the field

• PPSN (Parallel Problem Solving from Nature) is a biannual European conference on bio-inspired algorithms that started in 1990 in Dortmund, Germany. It was originally the cousin conference of ICGA, and both conferences were alternating. All historical details are available here.
• EvoStar (also written Evo*) is a yearly event organized by SPECIES, the Society for the Promotion of Evolutionary Computation in Europe and its Surroundings. Evo* is an event that bundles 4 conferences (EuroGP, EvoApplications, EvoCOP, and EvoMUSART). Details are here available here.
• IEEE CEC (Congress on Evolutionary Computation) is a yearly conference that started in 1994 in Orlando, FL, USA. It is co-located every second year with the WCCI (World Congress on Computational Intelligence).