In the current complex business environment where change is becoming the only constant for organizations, it is HR that has the responsibility of ensuring that organisations adapt well to the dynamic environment and operate optimally by providing them The following are some reasons why human Resource management is critical. Larger companies require similar staff functions, but the processes that must be followed to support them should be easier to implement and more efficient than in a typical small business setting as companies evolve - acquire others, contract, or change in other ways, the ability to scale up HR support becomes even more critical. I have expanded HR services that organizations can implement depending on their needs to enable them address the organizational size ranging from startups, SMEs to large firms.