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Human Resource Solutions for Your Business

As a division of Kollath CPA, we are a dedicated human resource outsource service team with over 30 years of industry experience serving Madison, Milwaukee, and the surrounding areas. Our division was created to assist businesses that have 1 to 50 employees with building a strong foundation that nurtures sustainability and growth. 


Our experienced consultants will work one-on-one with you to ensure that your business's unique needs are met. We offer temporary service to assist with staff leaves and long-term service, where a member of our team will feel like an extended part of your work family.


Click here for a complete list of SustainableHR services.

Payroll.  Tax.  Accounting.  HR Consulting




Interested in becoming a client?

Take a look at either our checklist for individuals or our checklist for businesses to see what information we may need from you.  Then contact us to schedule an appointment.

295 Regency Court, Suite 104
Brookfield, WI  53045


2501 Parmenter Street, Suite 100B
Middleton, WI  53562


Sauk Prairie
421 Water Street, Suite 111
Prairie du Sac, WI  53578