Giampiero Vitelli began his career as a designer at a very young age, creating significant and innovative pieces for home furnishings while studying new production technologies.

In 1961, he started collaborating with Titina Ammannati, and together they worked in the field of private construction, renovation, furnishings, and design, making significant contributions to the success of Italian design.

They collaborated with both Italian and foreign industries; in particular until 1970 with Rossi di Albizzate, for which they defined both production and design. Their works were published in design magazines and books.