[UPDATE, June 20, 2017: Expense system providers Certify, ExpenseWatch, Nexonia and Tallie are merging. K1 Investment Management is spending $125 million to create what it described as the "largest independent expense management software company." The new entity will maintain existing product lines. Goals include "expanded offerings" and wider geographic reach. A statement from Certify founder and CEO Robert Neveu indicated an ambition to unseat Concur as the largest expense system provider. Certify, ExpenseWatch, Nexonia and Tallie claim a combined 7,500 corporate customers. Concur claims 32,000 travel and/or expense clients. A K1 statement noted "additional . . .