Are PEO's generally startup-friendly or do PEOs tend to only take on established medium-sized businesses that are less volatile? (For anyone else who was unfam

Are PEO's generally startup-friendly or do PEOs tend to only take on established medium-sized businesses that are less volatile? (For anyone else who was unfamiliar with PEO, see http://en.wikipedia.org/wiki/Professional_employer_organization http://en.wikipedia.org/wiki/Professional_employer_organizat...)