List of 13 Illinois-based Semiconductors Companies

Name	Sector	Revenue $mlns	M&A Activity			Last 5 Years
Name	Sector	Revenue $mlns	Total	Buy	Sell	Last 5 Years
Knowles NYSE : KN Itasca, Illinois, United States website	Semiconductors	708	5	3	2
SigmaTron International NASDAQ : SGMA Elk Grove Village, Illinois, United States website	Semiconductors	414	3	3	-
Assured Quality Technologies Ltd. Acquired Atlas Fibre Co. 2016-10-28 Elk Grove Village, Illinois, United States website	Semiconductors	-	-	-	-
Spitfire Control, Inc. Acquired SigmaTron International 2012-06-01 Carpentersville, Illinois, United States website	Semiconductors	-	-	-	-
D&R Technology LLC Acquired CTS 2012-12-21 $63.5M Carol Stream, Illinois, United States website	Semiconductors	-	-	-	-
EcoTech Solutions Acquired Viper Networks 2021-12-02 $1.7M Sheridan, Illinois, United States website	Semiconductors	-	-	-	-
EpiWorks, Inc. Acquired Coherent 2016-02-01 $43M Champaign, Illinois, United States website	Semiconductors	14	-	-	-
Eagle Electronics Acquired Summit Interconnect 2021-06-01 Schaumburg, Illinois, United States website	Semiconductors	-	-	-	-
Tagore Technology - Power Gallium Nitride (GaN) IP portfolio Acquired GlobalFoundries 2024-07-01 Arlington Heights, Illinois, United States	Semiconductors	-	-	-	-
Opto Technology Inc. Acquired Revvity 2009-02-03 Wheeling, Illinois, United States website	Semiconductors	-	-	-	-
Rubicon Technology NASDAQ : RBCN Bensenville, Illinois, United States website	Semiconductors	2	-	-	-
Tagore Technology Private Arlington Heights, Illinois, United States website	Semiconductors	-	1	-	1
TouchSensor Technologies LLC Acquired Methode Electronics 2007-03-01 $65M Wheaton, Illinois, United States website	Semiconductors	-	-	-	-

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