Corporations - Useful Links
- Phone:
- Customer Service: (608) 261-7577
- TTY: 711
- DFI Corporations Unit
- Department of Financial Institutions
- Mailing: PO Box 7846
- Madison WI 53707-7846
- Physical Address: 4822 Madison Yards Way, North Tower
- Madison WI 53705
Other Useful Links
- FEIN (tax identification number)
http://www.irs.gov/Businesses/Small-Businesses-&-Self-Employed/Employer-ID-Numbers-EINs - WI Tax Information
http://www.revenue.wi.gov - Seller's Permit
https://www.revenue.wi.gov/Pages/FAQS/pcs-seller.aspx - Tradenames
http://www.wdfi.org/Apostilles_Notary_Public_and_Trademarks/defaultTrademark.htm - Small Business Planner
http://www.sba.gov/smallbusinessplanner/index.html - List of Wi State Agencies
http://www.wisconsin.gov/Pages/AllAgencies.aspx - Wisconsin Build Your Business
http://www.wisconsin.gov/Pages/business.aspx