KristalMark is a creative agency who specializes in fitness businesses, anything from supplements, gym clothing, special products etc. The reason for focusing only on fitness companies is simple. Till now we have been working with more than six fitness related clients and we pride ourselves to have a good knowledge of that area. And we ourselves have background in the fitness and bodybuilding indu...KristalMark is a creative agency who specializes in fitness businesses, anything from supplements, gym clothing, special products etc. The reason for focusing only on fitness companies is simple. Till now we have been working with more than six fitness related clients and we pride ourselves to have a good knowledge of that area. And we ourselves have background in the fitness and bodybuilding industry.