Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C., SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with this quarterly report of urban-gro, Inc. (the “Company”) on Form 10-Q for the three months ended March 31, 2024, as filed with the Securities and Exchange Commission on April 30, 2024, (the “Report”), we, the undersigned, in the capacities and on the date indicated below, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that to the best of our knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Dated: April 30, 2024	/s/ Bradley Nattrass
	Bradley Nattrass
	Chairperson of the Board of Directors and Chief Executive Officer
Dated: April 30, 2024	/s/ Richard A. Akright
	Richard A. Akright
	Chief Financial Officer