Greenshades Software has spent the last decade filing payroll taxes, providing employee self-service portals and meeting many other needs. They pride themselves in their client care, providing free technical support and customizing their solutions to fit your exact needs. They offer money-back guarantees that ensure their clients are completely satisfied. Most of their solutions work by integrating directly into the accounting systems that are already in place, such as the Microsoft Dynamics line, increasing the value of software you already own.