All brands could learn a thing or two about commitment, ongoing engagement, personalized experiences, a sense of community, and fierce loyalty from Birmingham, AL-based Iron Tribe Fitness.

Iron Tribe COO Jim Cavale, who was one of the company’s first clients nearly four years ago, says there is a social currency at Iron Tribe that stems from a person’s physical and mental transformation. “It really translates into a cult and the members feel like they’re a part of this tribe in this community,&rdquo....