<SEC-DOCUMENT>0001521951-18-000018-index.html : 20180309
<SEC-HEADER>0001521951-18-000018.hdr.sgml : 20180309
<ACCEPTANCE-DATETIME>20180309083357
ACCESSION NUMBER:		0001521951-18-000018
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		10
CONFORMED PERIOD OF REPORT:	20180309
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180309
DATE AS OF CHANGE:		20180309

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRST BUSINESS FINANCIAL SERVICES, INC.
		CENTRAL INDEX KEY:			0001521951
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				391576570
		STATE OF INCORPORATION:			WI
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34095
		FILM NUMBER:		18678528

	BUSINESS ADDRESS:	
		STREET 1:		401 CHARMANY DRIVE
		CITY:			MADISON
		STATE:			WI
		ZIP:			53719
		BUSINESS PHONE:		608-238-8008

	MAIL ADDRESS:	
		STREET 1:		401 CHARMANY DRIVE
		STREET 2:		PO BOX 44961
		CITY:			MADISON
		STATE:			WI
		ZIP:			53744

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	First Business Financial Services, Inc.
		DATE OF NAME CHANGE:	20110527
</SEC-HEADER>
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<TYPE>8-K
<SEQUENCE>1
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<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: fbiz4q17ceoletter8-k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>fbiz4q17ceoletterex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: fbiz4q17ceoletterex991.htm

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>ceoreportq42017final001.jpg
<DESCRIPTION>GRAPHIC
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Document 3 - file: ceoreportq42017final001.jpg

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<SEQUENCE>4
<FILENAME>ceoreportq42017final002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: ceoreportq42017final002.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>ceoreportq42017final003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: ceoreportq42017final003.jpg

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<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: ceoreportq42017final004.jpg

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<SEQUENCE>7
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<DESCRIPTION>GRAPHIC
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Document 7 - file: ceoreportq42017final005.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>ceoreportq42017final006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: ceoreportq42017final006.jpg

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<DOCUMENT>
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Document 9 - file: ceoreportq42017final007.jpg

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<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
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<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: fblogo2016a12.jpg

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</SEC-DOCUMENT>