ABM · Annual Report (Form 10-K) · Filed December 19, 2025

Abm Industries Inc — 10-K exhibit

abm10312025ex321.htm

Abm Industries Inc on Boardroom Alpha

Document

EXHIBIT 32.1

CERTIFICATIONS PURSUANT TO SECURITIES EXCHANGE ACT OF 1934

RULE 13a-14(b) OR 15d-14(b) AND

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of ABM Industries Incorporated (the “Company”) for the year ended October 31, 2025, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), Scott Salmirs, Chief Executive Officer of the Company, and David M. Orr, Chief Financial Officer of the Company, each certifies for the purpose of complying with Rule 13a-14(b) or Rule 15d-14(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and Section 1350 of Chapter 63 of Title 18 of the United States Code, that:

(1)the Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

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

December 19, 2025

/s/ Scott Salmirs

Scott Salmirs

Chief Executive Officer

(Principal Executive Officer)

December 19, 2025

/s/ David M. Orr

David M. Orr

Chief Financial Officer

(Principal Financial Officer)

Disclaimer

The opinions and information contained herein have been obtained or derived from sources believed to be reliable, but Boardroom Alpha cannot guarantee its accuracy and completeness, and that of the opinions based thereon.

This report contains opinions and is provided for informational purposes only – it does not constitute investment, legal or tax advice. You should not rely solely upon the research herein for purposes of transacting securities or other investments, and you are encouraged to conduct your own research and due diligence, and to seek the advice of a qualified securities professional before you make any investment.

None of the information contained in this report constitutes, or is intended to constitute a recommendation by Boardroom Alpha of any particular security or trading strategy or a determination by Boardroom Alpha that any security or trading strategy is suitable for any specific person. To the extent any of the information contained herein may be deemed to be investment advice, such information is impersonal and not tailored to the investment needs of any specific person.

No representation or warranty, expressed or implied, is made on behalf of Boardroom Alpha as to the accuracy or completeness of the information contained herein. Boardroom Alpha does not accept any liability for any direct, indirect or consequential loss or damage suffered by any person as a result of relying on all or any part of this research and any liability is expressly disclaimed.

Full disclaimer