Is your check in the mail? Ask Harland Clarke. The company produces billions of checks and deposit slips annually. In addition to checks and check-related products (such as business cards and stationery), Harland Clarke offers direct marketing services, delivery and anti-fraud products, and contact center services to financial institutions such as banks, credit unions, and securities firms. The company became Harland Clarke in 2007 after holding company M & F Worldwide, the owner of Clarke American Checks, bought rival printer John H. Harland and combined the two companies' check-related operations.