The provided URLs do not directly link to a company named "T-REX" with a website at http://www.trexgroup.com or a LinkedIn page at http://www.linkedin.com/company/t-rex-group. However, based on similar names, there are several companies with "Trex" in their name: - T-Rex Solutions, LLC: Offers IT modernization solutions and professional services to the federal government, focusing on mission-critical operations[1]. - Trex Marketing Group: Provides digital marketing services like paid media, email marketing, and SEO to e-commerce businesses[2]. - Trex Company, Inc.: Manufactures wood-alternative decking and railing products from recycled materials[3]. Each company targets different audiences and offers unique services.