June
1999

June
1999

Opened Main Branch at 322 East Capitol Avenue

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Read More: Downtown Springfield INB's Hub Then and Now

December
1999

Opened Branch in Montvale Commons

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Read More: Montvale Branch Set the Stage for New INB


September
2000

Acquired Remittance Operations Center from National City Bank


April
2002

Completed construction and opened branch on South Sixth Street

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Read more: Great Banking is All You’ll Get at our South Sixth Drive-up Window


June
2002

Completed construction and opened branch on North Dirksen Parkway

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Read more: Corn Field Perfect Place to Bank


September
2002

Acquired the Chatham branch of Palmer Bank; moved to new facility June 2003

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Read more: Chatham Opportunity INB Couldn’t Pass Up


November
2002

Acquired the Pleasant Plains branch of Premier Bank

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Read more: Time Doesn’t Change the Need for Banking in Pleasant Plains


October
2004

Acquired Riverton Community Bank

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Read more: Riverton Sale to INB Preserved Spirit Intended by Founders


May
2005

Completed construction of INB's West Wabash branch


September
2006

Opened INB Conference and Operations Center, 4th and Jackson, Springfield

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Read more: Operations Center INB’s 21st Century, Electronic Vault


May
2007

Opened Peoria branch


Read more: History of INB-Peoria

January
2008

Acquired First National Bank of Mt. Pulaski and Capital Community Bank in Springfield

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Read more: Mt. Pulaski: Farm-town, Hometown, INB’s Kind of Town


December
2012

Opened Bloomington Loan Production office


February
2016

Opened Champaign Loan Production office


April
2017

Opened Bloomington branch

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Read more: Expected Service Leads to Unexpected Growth in Bloomington-Normal


April
2018

Opened Champaign branch

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Read more: INB More than a Building; A Part of Champaign Community.


November
2018

Opened St. Louis Loan Production office

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Read more: INB Opens Loan Operations Office in Chesterfield, Missouri