ETS Travel Services ETS International is a full-service travel management company providing consultative travel programs that not only support corporate and traveler needs, but assist with achieving long-range objectives ETS International is a full-service travel management company providing consultative travel programs that not only support corporate and traveler needs, but assist with achieving long-range objectives. Through customized programs, the industrys most highly-skilled agents, and an unwavering focus on service, excellence, and value, ETS provides the difference you deserve!