Due to the nature of our service, there are a number of vendors which offer effective human resource management services which may not be featured in our rankings. Our rankings consist of the vendors which we have found to achieve results on a consistent basis. As our listings can only contain a limited number of vendors, we have opted to display the best based on our internal processes for research and analysis. There certainly is a train of thought that would indicate that no single company fits all service or product requirements. These companies simply meet their objectives, in our opinion, consistently and thus are ranked as the best in our rankings. We certainly urge buyers of human resource management services to perform their own research in order to determine which vendor is the best fit for their project, but to utilize bestpayrollservices.com as a resource for their own research.