Illinois Government Resources
Department of Revenue (sales tax information)
Secretary of State (incorporation information)
Small Business Administration – Illinois District Office
Small Business Development Center
Angel Investor Groups
Heartland Angels
Hyde Park Angels
Northern Illinois Angels
Prairie Angels
Non-government Resources
Women’s Business Development Center – The oldest, largest, most comprehensive, and successful women’s business assistance center in the United States.
World Business Chicago - A not-for-profit corporation dedicated to advancing Chicago’s position as a thriving global business location and enhances the city’s economy by fostering growth in the private sector; building the best city in the world in which to live, work, and play.
Small Business Incubators
Business Center of Decatur - Decatur
Chicago Technology Park & Research Center - Chicago
Des Plaines River Valley Incubator – Des Plaines
Venture Capital Firms
ABN AMRO Private Equity
Adams Street Partners LLC
Alpha Capital Partners Ltd.
American Capital Strategies Ltd.
Arbor Private Investment Co. LLC
Arch Development Partners L.L.C.
Arch Venture Partners
Baird Capital Partners
Baird Venture Partners
BCZ Venture Partners
Beecken Petty O’Keefe Co./2
William Blair Capital Partners
Cardinal Growth L.P.
CIVC Partners
Code Hennessy & Simmons LLC
DNJ Capital Partners LLC
Duchossois TECnology Partners
First Analysis
Frontenac Co.
Gaebler Ventures LLC
Glencoe Capital LLC
Goense Bounds & Partners
GTCR Golder Rauner LLC
High Street Capital
Illinois Finance Authority
Inroads Capital Partners
JK&B Capital
KB Partners
Kentco Capital Corp.
Keystone Capital Inc.
Lake Capital
Lake Pacific Partners LLC
Leo Capital Holding LLC
Madison Dearborn Partners LLC
Mesirow Financial
Mid Oaks Investments LLC
Midwest Mezzanine Funds
Motorola Ventures
New World Ventures
North American Funds
OCA Venture Partners L.P.
Paradigm Group II LLC
Pfingsten Partners LLC
Polestar Capital Partners L.P.
Portage Venture Partners
Prairie Capital
Prism Capital
Prospect Partners LLC
Ravenswood Capital Venture Fund
Roundtable Healthcare Partners
Signature Capital, L.L.C.
Sterling Partners
Svoboda Collins LLC
Technology Crossover Ventures
Thoma Cressey Equity Partners
Transcap Associates Inc.
Tricor Pacific Capital
Vector Fund Management
Waud Capital Partners
William Blair Capital Partners
Willis Stein & Partners
Wind Point Partners
Wynnchurch Capital Ltd.