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Largest Indianapolis-Area Architectural Firms

(Ranked by 2019 local architectural billings)

Rank 2019 rank	Firm Address Telephone / Website	Local Architectural Billings: 2019 2018	2019 Local Company Billings	Largest Percentage of Billings	Licensed: Architects Engineers	Local FTE Staff	Managing Partner(s)	Notable Recent Projects	Estab. Locally
1 2	CSO 8831 Keystone Crossing, 46240 317-848-7800 / csoinc.net	$31.4 million $21.5 million	$31.4 million	architecture	27 DND	94	Alan Tucker, John Rigsbee	IU Health Bloomington Hospital, University of Louisville residence halls, Homestead High School	1961
2 1	Ratio 101 S. Pennsylvania St., 46204 317-633-4040 / ratiodesign.com	$22.6 million $25.9 million	$44.1 million	architecture	29 DND	86	Bill Browne, Chris Boardman, Tony Steinhardt, Bryan Strube, Brock Roseberry	Bottleworks Hotel; KAR Global headquarters, Carmel; Centra Credit Union headquarters, Columbus	1982
3 4	Schmidt Associates 415 Massachusetts Ave., 46204 317-263-6226 / schmidt-arch.com	$21.8 million $16.5 million	$27.3 million	architecture	25 8	105	Sarah Hempstead, Ronald Fisher, Brett Quandt	P.R. Mallory redevelopment, Ball State Univ. North West Residence Hall, Shelbyville Golden Bear Preschool	1976