Client Renewal Specialist. Company & Job Summary. Broker Online Exchange (BOX) is the largest and most flexible retail energy network in the country and was recently rated #225 on the Inc5000™List of Americas Fastest Growing Companies as well as #39 on the Entrepreneur 360™ List of America's Best Privately-Owned Companies. Are you a proactive and detail-oriented sales professional looking for an opportunity to excel in the world of energy sales r...