Manufacturer Representatives Founded in September, 1996, Extreme Sales specializes in bringing the retailer and the manufacturer together to build successful programs and mutually beneficial relationships. Bill Nangle's years of experience and success in this region make Extreme ideally suited to build product presentations that reflect our knowledge of the retail environment in the Northeast. Extreme has worked, and will continue to work with manufacturers in the development of product packaging, promotions, displays, and retail strategies that will maximize return on investment.