Griffin Capital BDC 10-Q 2017 Q2 Quarterly report

Exhibit 32.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

Pursuant to 18 U.S.C. Section 1350 as created by Section 906 of the Sarbanes-Oxley Act of 2002

I, Joseph E. Miller, certify, pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350, that:

(i) The Quarterly Report on Form 10-Q of Griffin Capital BDC Corp. (the “Company”) for the quarterly period ended June 30, 2017 (the “Report”) fully complies with the requirements of Section 13(a) of the Securities Exchange Act of 1934 (15 U.S.C. 78m); and

(ii) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Dated:	August 8, 2017	By:	/s/ Joseph E. Miller
			Joseph E. Miller Chief Financial Officer and Treasurer (Principal Financial Officer)