The Metroport Chamber represents seven communities, including: Argyle, Haslet, Justin, Northlake, Roanoke, Trophy Club and Westlake, Texas. We are 550+ members strong - made up of local business and community organizations - and growing every day. Connecting the Alliance Region Since 1988. The Chamber has served the Alliance region since 1988. Our mission is to create, promote and enhance opportunity and growth for the business community. We are committed to working with area leaders to promote positive economic development and to address the issues surrounding that development.