The Birmingham-based consultancy will work with Derby House to build its reputation as a supplier of equine goods through a new design approach.
The agency will be responsible for building Derby House's online presence as well as press activity and its telesales operation.
Seal will begin by designing glossy magazine ads to target the full cross section of riding within the equine industry.
Martyn Grealey, chief executive of Derby House, said: "We are one of the leading suppliers in the equestrian market and are absolutely passionate about all things horse related.
"Seal met the brief by adding real energy and excitement into the creative and this expertise, combined with the agency's excellent footfall and retail credentials, will be ideal for helping take Derby House onto its next level of growth."
Derby House offers equipment for horse, rider and the tack room including hats, body proctors, breeches and jodhpurs, saddles, bits and horse rugs.
Phil Birchall, creative director at Seal Communications, said: "It is important we build on the heritage of Derby House as a well-established, recognised name in the equestrian field.
"However, we will inject extra quality and style into the brand communications through eye-catching, seductive imagery, helping to demonstrate the passion and knowledge Derby House offers to the equine world."
Sport
Seal wins integrated task from Derby House
LONDON - Seal Communications has been appointed by equestrian supplier, Derby House, to handle its integrated account.