Pitch was appointed after a four-way pitch.
Musto has called in Pitch to promote its sailing, shooting, equestrian and lifestyle ranges.
The agency's role will be to strengthen Musto's position as the number one technical sailing and country sports clothing manufacturer. Pitch will also be responsible for raising the profile of Musto's growing lifestyle range.
Musto marketing director Mostyn Thomas said: ‘This move represents an important step forward for our brand as this is the first time that we have unified the marketing of all our product ranges through the employment of a single agency.'