ABM REPORTS FOURTH QUARTER AND FULL FISCAL 2025 RESULTS AND PROVIDES FISCAL 2026 OUTLOOK (Form 8-K)

ABM REPORTS FOURTH QUARTER AND FULL FISCAL 2025 RESULTS AND PROVIDES FISCAL 2026 OUTLOOK

Excluding prior year self-insurance adjustments, organic growth, adjusted EPS and adjusted EBITDA exceed management expectations

NEW YORK, NY - December 17, 2025 - ABM (NYSE: ABM), a leading provider of facility, engineering, and infrastructure solutions, today announced financial results for the fourth quarter and full year ended October 31, 2025.

"ABM finished the year on a high note with record quarterly revenue, supported by 4.8% organic growth. Excluding prior year self-insurance adjustments, fourth quarter adjusted EPS, adjusted EBITDA and adjusted EBITDA margin all exceeded our expectations, reflecting strong volume, favorable mix, and the benefits of our cost discipline and restructuring actions. Our performance was led by exceptional results in Technical Solutions, where the team successfully delivered numerous projects in a complex construction environment. Aviation and Manufacturing & Distribution also posted strong revenue growth, each benefiting from recent client wins and customer expansions, while Business & Industry and Education generated improved margins, demonstrating the resiliency of their end markets and continued focus on operational efficiency," said Scott Salmirs, President and Chief Executive Officer. "We also repurchased $73.0 million of shares in the fourth quarter and $121.3 million for the full year, underscoring our unwavering conviction in ABM's multi-year growth path and the strategic investments we are making to expand our capabilities and competitive position."

1

"Our fourth quarter results capped an outstanding year for ABM, marked by record full year revenue of $8.7 billion and a record $1.9 billion in new sales bookings," continued Mr. Salmirs. "We advanced several key strategic initiatives in 2025, including meaningful investments in AI and continued strong progress on our ERP implementation following a challenging start. Building on the progress we have been making, we separately announced an agreement to acquire WGNSTAR today. We expect the transaction to further strengthen our position in the fast-growing semiconductor market, expand our technical capabilities in fabrication environments and position ABM to capitalize on accelerating U.S. semiconductor onshoring trends. We also secured one of the largest Aviation awards in ABM history at a major gateway airport, which is expected to generate significant annual revenue when it comes online in calendar 2026. Together, these achievements reflect the great work of our team and our ability to execute at a high level in a challenging macro environment."

Mr. Salmirs concluded, "As we look ahead to fiscal 2026, we are encouraged by healthy demand across our key end markets, particularly within Technical Solutions, Aviation and Manufacturing & Distribution. With a record year for new sales bookings in 2025, a major new Aviation win and a strong backlog, we expect another solid year of organic revenue growth. In addition, our restructuring actions, disciplined cost management and 2025 share repurchases are enhancing the earnings power of the enterprise. With these tailwinds, we expect adjusted EPS in fiscal 2026 to be in the range of $3.85 to $4.15(1) , excluding the impact of any potential positive or negative prior year self-insurance adjustment, and organic revenue growth is forecasted to be 3% to 4%."

Fourth Quarter Fiscal 2025 Results

The Company reported record revenue of $2.3 billion, up 5.4% over the prior year period, including organic growth of 4.8% and an additional contribution from acquisitions. Revenue growth was led by Technical Solutions ("ATS") and Manufacturing & Distribution ("M&D"), which grew 16% and 8%, respectively. Strong ATS performance was driven primarily by a significant year-over-year increase in microgrid project activity, while M&D's growth was supported by new client wins and expansions. Aviation grew 7% benefitting from healthy market demand and recent contract wins, while Business & Industry ("B&I") and Education each delivered 2% revenue growth.

Net income was $34.8 million, or $0.56 per diluted share, compared to a net loss of $(11.7) million, or $(0.19) per share in the prior year period. The year-over-year improvement primarily reflects a $61.3 million year over year benefit resulting from the absence of the large contingent consideration adjustment related to the Ravenvolt acquisition recorded in the prior year period, as well as higher segment operating earnings, largely driven by strong ATS performance. These benefits were partially offset by a $(15.8) million negative impact from prior year self-insurance adjustments recognized in the current period and $(9.5) million of previously communicated restructuring costs. Net income margin was 1.5% compared to -0.5% in the prior year period.

Adjusted net income was $54.7 million, or $0.88 per diluted share, compared to $55.8 million, or $0.88 per diluted share, in the prior year period. This year-over-year change primarily reflects a $(15.8) million negative impact from prior year self-insurance adjustments recognized in a current period and higher interest expense, largely offset by higher segment earnings, including the benefits of restructuring actions.

Adjusted EBITDA was $124.2 million and adjusted EBITDA margin was 5.6%, compared to $125.6 million and 6.0%, respectively, in the prior year period. Current results were adversely affected by the negative pre-tax impact of a prior year self-insurance adjustment of $(22.2) million, which reduced adjusted EBITDA margin by approximately 100 basis points. Prior period adjusted EBITDA included a $(2.4) million pre-tax

2

prior year self-insurance adjustment. Adjusted results exclude items impacting comparability and a description of these items can be found in the "Reconciliation of Non-GAAP Financial Measures" table.

Net cash provided by operating activities was $133.4 million, and free cash flow was $112.7 million, compared to $30.3 million and $15.5 million, respectively, in the prior year period. These results primarily reflects continued progress in the implementation of the Company's enterprise resource planning ("ERP") system, which drove sequential improvements in working capital management. A reconciliation of free cash flow to net cash provided by operating activities can be found in the "Reconciliation of Non-GAAP Financial Measures" table.

Full Year Fiscal 2025 Results

For fiscal 2025, the Company reported record revenue of $8.7 billion, an increase of 4.6% over the prior year, comprised of 3.8% organic growth and 0.8% from acquisitions. All segments delivered organic revenue growth, led by 10% in Technical Solutions and 8% in Aviation. Manufacturing & Distribution grew 4%, driven by new clients and expansions that ramped up in the back half of the year, while Business & Industry and Education each delivered 2% revenue growth, supported by client diversification and the resilient nature of their respective markets.

Net income was $162.4 million, or $2.59 per diluted share, as compared to $81.4 million, or $1.28 per diluted share in the prior year. The year-over-year improvement primarily reflects a net benefit of $97.2 million resulting from the absence of large contingent consideration adjustments related to the Ravenvolt acquisition recorded in the prior year, along with higher segment operating earnings. These benefits were partially offset by increased corporate investments, higher interest expense, and $(9.7) million of previously communicated restructuring costs. Net income margin was 1.9% versus 1.0% in the prior year.

Adjusted net income was $215.8 million, or $3.44 per diluted share, compared to $212.6 million, or $3.34 per diluted share in the prior year. The increase in adjusted net income primarily reflects higher segment operating earnings, partially offset by increased corporate investments and higher interest expense. Adjusted earnings per share also benefited from a lower share count resulting from the Company's share repurchase activities.

Adjusted EBITDA was $496.6 million, compared to $477.7 million in the prior year. Adjusted EBITDA margin was 5.9%, versus 5.9% last year. Adjusted results exclude items impacting comparability. A description of these items can be found in the "Reconciliation of Non-GAAP Financial Measures" table.

Net cash provided by operating activities was $234.4 million, and free cash flow was $155.1 million, compared to $226.7 million and $167.3 million, respectively, in the prior year. A reconciliation of free cash flow to net cash provided by operating activities can be found in the "Reconciliation of Non-GAAP Financial Measures" table.

Liquidity & Share Repurchases

The Company ended the quarter with total indebtedness of $1,607.5 million, including $23.5 million in standby letters of credit, resulting in a total leverage ratio, as defined by the Company's credit facility, of 2.7x. The Company had available liquidity of $681.6 million, inclusive of cash and cash equivalents of $104.1 million.

3

During the fourth quarter, the Company repurchased 1.6 million shares of common stock at an average price of $45.84, for a total cost of $73.0 million. For the full fiscal year, the Company repurchased 2.6 million shares at an average price of $47.35, for a total cost of $121.3 million, reducing its outstanding share count by 4%. At year-end, the Company had $183 million of remaining availability under its share repurchase program.

Quarterly Cash Dividend

After the quarter closed, ABM's Board of Directors approved a quarterly cash dividend of $0.29 per common share, representing a 9% increase over the prior quarterly cash dividend of $0.265 per common share. The increased dividend is payable on February 2, 2026, to shareholders of record on January 14, 2026. This increase represents the 58th consecutive year of ABM raising its annual dividend and reflects the Board's continued confidence in the Company's cash generative business model and commitment to delivering long-term total shareholder return.

Outlook

Looking ahead to fiscal 2026, ABM expects solid performance with organic revenue growth of 3% to 4%, driven by healthy demand across its end markets, particularly within Technical Solutions, Aviation, and Manufacturing & Distribution. The WGNSTAR acquisition is anticipated to contribute an additional point of growth, bringing total expected revenue growth for 2026 to approximately 4% to 5%. Segment operating margin, defined as total segment operating profit, divided by total revenue, is projected to be between 7.8% and 8.0%, reflecting the Company's continued focus on operational efficiencies and the benefits of recent restructuring actions. Adjusted EPS is expected to be in the range of $3.85 to $4.15(1), before any impact from prior-year self-insurance adjustments, with interest expense of $95 million to $105 million and a normalized tax rate of 29% to 30%, excluding discrete and non-taxable items.

The Company cannot provide a reconciliation of the differences between the non-GAAP expectations and corresponding GAAP measure for Adjusted EPS in 2026 without unreasonable effort due to the uncertainty of timing of any gains or losses related to, but not limited to, items such as changes in the fair value of contingent consideration, acquisition and integration related costs, as well as legal costs and other settlements. Although we have attempted to estimate the amount of gains and losses of such items for the purpose of explaining the probable significance of these components, this calculation involves a number of unknown variables, resulting in a GAAP range that we believe is too large and variable to be meaningful.

Conference Call Information

ABM will host its quarterly conference call for all interested parties on Wednesday, December 17, 2025, at 8:30 AM (ET) to discuss its fourth quarter and full-year 2025 financial results and the agreement to acquire WGNSTAR. The live conference call can be accessed via audio webcast at the "Investors" section of the Company's website, located at www.abm.com, or by dialing (877) 451-6152 (domestic) or (201) 389-0879 (international) approximately 15 minutes prior to the scheduled time.

A supplemental presentation will accompany the webcast on the Company's website.

4

A replay will be available approximately two hours after the webcast through December 31, 2025, and can be accessed by dialing (844) 512-2921 and then entering ID #13756542. A replay link of the webcast will also be archived on the ABM website for 90 days.

(1) When the company provides expectations for adjusted EPS on a forward-looking basis, a reconciliation of the differences between these non-GAAP expectations and the corresponding GAAP measure generally is not available without unreasonable effort. In addition, expectations for adjusted EPS do not give effect to any potential positive or negative prior year self-insurance adjustments. See "Outlook" and "Use of Non-GAAP Financial Information" below for additional information.

About ABM

ABM (NYSE: ABM) is one of the world's largest providers of integrated facility, engineering, and infrastructure solutions. Every day, our over 100,000 team members deliver essential services that make spaces cleaner, safer, and more efficient, enhancing the overall occupant experience.

ABM serves a wide range of market sectors including commercial real estate, aviation, mission critical, and manufacturing and distribution. With over $8 billion in annual revenue and a blue-chip client base, ABM delivers innovative technologies and sustainable solutions that enhance facilities and empower clients to achieve their goals. Committed to creating smarter, more connected spaces, ABM is investing in the future to meet evolving challenges and build a healthier, thriving world. ABM: Driving possibility, together.

For more information, visit www.abm.com