Onyx CenterSource Expands Partnership with Preferred Hotels & Resorts News provided by Share this article Share this article DALLAS, April 20, 2021 /PRNewswire/ -- Onyx CenterSource, a leading global provider of B2B payments and business intelligence to the hospitality industry, today announced that it has joined the Preferred Hotels & Resorts Alliance Partner Program. Preferred Hotels & Resorts, the world's largest provider of sales, marketing and distribution services to independent luxury hotels, has been an Onyx client for more than 10 years, having designated the Onyx CommPay service as a Preferred ProTool for its member hotels to facilitate the payment of commissions from hotels to travel agents.