Doing Business with State Universities

SIU Vendor Guide
or
SIU Guia de Provedores

BIDDER'S APPLICATION

NIGP COMMODITY AND SERVICE CLASSES AND SUB-CLASSES

Substitute W-9

(Internal Revenue Service)

W-8BEN Form

(Internal Revenue Service)

Illinois Department of Human Rights

Application for IDHR Number

 (remote site)

Doing Business With State Universities (remote site)

Illinois Department of Revenue

Registering to Do Business in the State of Illinois (remote site)

Illinois Public Higher Education Cooperative Bid Opportunities (remote site)

CMS Business Enterprise Program Minority Certification (remote site)

Other Vendor Forms

Online Registration Under Construction

Illinois Tax Exemption Certificate (.pdf)

Missouri Tax Exemption Certificate (.pdf)