With only a single phone, three gentlemen are sitting in a small office in Amersfoort in 2004. They are bursting with ideas and want to bring a change in the way talent is viewed, by using individual skills and potential as a yardstick. Technological developments, they say, are not only the work of professionals with a technical background, but are often inspired by people who look at things from a different perspective. With a fresh pair of eyes. That's how Calco was born. The fast-growing company soon shifted its focus to a specific group: young professionals who have not quite chosen the right study or who discover that they have hidden IT talent. Through an IT traineeship, they are trained by Calco to be able to fully use their talents.