Travellers - Update your personal travel expenses, check your flight and gate with your cell phone or PDA. Travel Planners - Let Abacus take care of all your travel needs so that you can concentrate on the rest of your job. Executives - Take advantage of the savings Abacus Travel can offer you through our strategic partnerships. Headquartered in the Greater Boston area, Abacus Travel has grown exponentially since it opened in 1985 as a leisure travel agency with $800,000 in sales. In 15 years, it has grown into a $50 million company serving an account base of over 300 companies across the U.S. cash personal check nyc