Custom Truck One Source, Inc. Reports Second Quarter 2026 Results and Increases Full Year 2026 Revenue and Adjusted EBITDA Guidance

Custom Truck One Source, Inc. (NYSE: CTOS), a leading provider of specialty equipment to the electric utility, telecom, rail, forestry, waste management and other infrastructure-related end markets, today reported financial results for the three and six months ended June 30, 2026.

CTOS Second-Quarter Highlights

• Record second quarter revenue of $563.4 million, an increase of $52.0 million, or 10.2%, compared to the second quarter of 2025

• Increased Average OEC on rent by $158.5 million, or 13.1%, compared to the second quarter of 2025

• Gross profit of $124.0 million, an increase of $21.4 million, or 20.9%, compared to the second quarter of 2025

• Adjusted Gross Profit of $180.9 million, an increase of $24.4 million, or 15.6%, compared to the second quarter of 2025

• Net income of $10.4 million, an improvement of $38.8 million, compared to the second quarter of 2025

• Adjusted EBITDA of $116.8 million, an increase of $23.3 million, or 25.0%, compared to the second quarter of 2025

• Reduced net leverage ratio to 3.85x at quarter-end, crossing below 4.0x, compared to 4.02x at the end of the first quarter and 4.31x at year-end 2025

• Given strong conditions in the transmission and distribution (“T&D”) end markets, and record first half results, increasing 2026 full year revenue guidance range from $2.005 billion – $2.12 billion to $2.1 billion – $2.2 billion and Adjusted EBITDA¹ guidance range from $415 million – $440 million to $437.5 million – $455 million

“In the second quarter, we delivered record quarterly revenue and substantial year-over-year growth in revenue and Adjusted EBITDA of 10% and 25%, respectively. Sustained strength in our core T&D markets remains the primary driver of performance within our SER segment and for the Company as a whole. Our rental fleet achieved average utilization of 81.6% for the quarter, up 400 basis points from a year ago, and we ended the quarter with total OEC of $1.68 billion, the highest quarter-end level in our history, positioning us for continued SER growth through the balance of 2026,” said Ryan McMonagle, Chief Executive Officer of CTOS. “STEM also had a record quarter, with external customer revenue of $345 million and equipment sales of $332 million. The strength across both segments allowed us to continue making substantial progress in reducing our net leverage. We are optimistic about the second half of 2026, as CTOS remains well-positioned to benefit from secular tailwinds in data center investment, electrification, utility grid upgrades and infrastructure spending. We remain focused on Adjusted EBITDA growth, working capital management, free cash flow generation and continued deleveraging,” McMonagle added.

Summary Actual Consolidated Financial Results

Summary Actual Financial Results by Segment

Beginning January 1, 2026, CTOS is reporting our results under two reportable segments: (1) Specialty Equipment Rentals (“SER”) and (2) Specialty Truck Equipment and Manufacturing (“STEM”). The new SER segment consists of our historical Equipment Rental Solutions (“ERS”) segment (except for certain used sales to be accounted for by STEM) and a portion of our historical Aftermarket Parts and Services (“APS”) segment, and the new STEM segment consists of our historical Truck and Equipment Sales (“TES”) segment, certain used sales that previously were accounted for by ERS and a portion of our historical APS segment. We are also reflecting intercompany activity between the two segments, which is ultimately eliminated in consolidation. This new segment reporting reflects how CTOS’s business is managed and how resources are allocated in 2026 and utilizes Adjusted EBITDA as the segments’ profit measure. Segment Adjusted EBITDA is defined as segment operating income or loss before depreciation and amortization, further excluding the effects of purchase accounting adjustments and the impact of sales-type lease accounting for certain leases containing rental purchase options (or “RPOs”).

Management believes this new presentation better reflects the positioning of CTOS’s strategies and operations portfolio and better reflects key economic drivers, capital intensity, and margin profiles of the respective new segments, as well as aligns our external reporting with how management allocates capital and evaluates performance. Prior period amounts have been recast to reflect the change to two reportable segments.

Specialty Equipment Rentals

Specialty Truck Equipment & Manufacturing

Consolidated Adjusted EBITDA

See the Company’s Quarterly Report on Form 10-Q for the three months ended June 30, 2026 for a reconciliation of segment-level adjusted EBITDA to Consolidated income (loss) before income taxes.

Summary Combined Operating Metrics

Management Commentary

The increase of 20.1% in rental revenue in the second quarter of 2026 compared to the second quarter of 2025 was the result of improved average fleet utilization (which increased to 81.6% compared to 77.6%) driven by increased rental volume, with average OEC on rent increasing by 13.1% year-over-year and OEC on rent yield improving 80 basis points to 39.4%. Compared to the second quarter of 2025, SER rental equipment sales increased 30.3% in the second quarter of 2026 due to an increase in buyout activity of rental contracts with purchase options. SER adjusted EBITDA in the second quarter of 2026 increased 26.2% compared to the second quarter of 2025.

Equipment sales in our STEM segment increased 4.9% in the second quarter of 2026 compared to the second quarter of 2025 driven by demand for utility and forestry vehicles. Adjusted EBITDA increased by $13.2 million in the second quarter of 2026 compared to the second quarter of 2025. Our STEM backlog was down 3.7% compared to the second quarter of 2025, and, at approximately 3.5 months of LTM third-party new sales, sits modestly below our targeted range of four to six months, reflecting record equipment deliveries in the quarter.

The increase in net income in the second quarter of 2026, compared to a loss in the second quarter of 2025, was primarily due to higher operating income as a result of strong new equipment sales and higher rental revenue driven by higher average OEC on rent. The increase is also due to an income tax benefit in the quarter, compared to an expense for the same period in 2025 which reflected an adjustment to our estimated effective tax rate.

Adjusted EBITDA for the second quarter of 2026 was $116.8 million, a 25.0% increase compared to the second quarter of 2025, which was largely driven by increased gross profit.

As of June 30, 2026, cash and cash equivalents were $10.3 million, total debt outstanding was $1,673.2 million, net debt was $1,662.9 million and our net leverage ratio was 3.85x. Availability under the senior secured credit facility was $229.4 million as of June 30, 2026, and based on our borrowing base, we have an additional $242.0 million of suppressed availability that we could access by upsizing our existing facility.

2026 Outlook

We are increasing our full year 2026 consolidated revenue, segment revenue, and Adjusted EBITDA^{1, 4} guidance to reflect our record first half results and continued momentum in the rental business.

Consolidated CTOS:

• Revenue is expected to increase 8% to 13% year-over-year, with Adjusted EBITDA^{1, 4} expected to increase 14% to 19%.

• Net rental fleet investment (purchases less proceeds) for 2026 is expected to be approximately $170 million to $200 million, an increase from prior guidance to support strong rental demand, with mid-single digit net OEC growth, while still reflecting a meaningful reduction from over $250 million in 2025.

• Inventory months on hand is expected to continue trending toward the targeted level of below six months, supporting working capital improvement.

• Levered free cash flow^{2, 4} is expected to exceed $50 million for 2026 and net leverage ratio^{3, 4} is expected to be meaningfully below four times by the end of fiscal 2026; the longer-term target remains achieving a net leverage ratio^{3, 4} below three times in 2027.

Specialty Equipment Rentals (SER):

• The rental business continues to perform very well with OEC on rent, utilization and gross margin all continuing to perform ahead of expectations through the first half of 2026.

• Demand for equipment serving the utility transmission and distribution market remains very strong and at record levels, and further penetration of the vocational rental market is expected to provide incremental growth.

• Average fleet age was approximately three years at the end of the second quarter, which continues to position the Company to moderate rental fleet investment while pursuing growth, with OEC expected to increase by a mid-single digit percentage in 2026.

Specialty Truck Equipment & Manufacturing (STEM):

• Third-party new sales revenue is expected to increase 3% to 10% in 2026 compared to 2025, supported by continued customer demand, stable supply chain conditions and relationships with key customers, chassis suppliers and attachment suppliers.

• Total STEM revenue is expected to be down marginally to up 3% year-over-year, with third-party growth partially offset by lower intercompany rental sales/capex.

• Sales order backlog ended the second quarter at $322 million, or approximately 3.5 months of LTM third-party new sales, modestly below the targeted range of four to six months, reflecting record equipment deliveries in the quarter; backlog can move quarter to quarter with delivery and production timing, and June quoting activity increased 26% year-over-year, supporting expected order intake in the second half.

“Our focus for the remainder of 2026 is on disciplined execution – converting strong end-market demand into profitable growth, cash generation and further balance sheet improvement. Our rental business continues to perform very well, driven by demand in our utility transmission and distribution markets, and that strength is flowing through to margins and Adjusted EBITDA^{1, 4},” said Chris Eperjesy, Chief Financial Officer of CTOS. “We expect third quarter revenue and Adjusted EBITDA^{1, 4} to be up year-over-year but, modestly below the second quarter, as certain third-party new equipment and used equipment sales, including rental purchase option buyouts, were delivered in the second quarter rather than the second half. That timing shifts results between quarters, not out of the year, and it is reflected in our raised full-year ranges. Rental enters the third quarter with OEC on rent and utilization above prior-year levels and is expected to continue growing sequentially, with year-over-year growth rates naturally moderating as we lap a second half of 2025 that posted the largest increase in OEC on rent in our history. With a younger, highly utilized fleet and improving working capital dynamics, we believe CTOS is positioned to drive higher returns on invested capital while maintaining financial flexibility as we invest selectively to support our customers’ long-term needs, and to translate that into meaningful free cash flow generation.”

CONFERENCE CALL INFORMATION

The Company has scheduled a conference call to discuss its second quarter 2026 results at 9:00 a.m. ET on August 4, 2026, via a live audio-only webcast. Both the webcast link and a presentation of financial information will be posted on the “Events & Presentations” page of investors.customtruck.com. A replay of the call will be available by accessing the same webcast link detailed above.

ABOUT CTOS

CTOS is one of the largest providers of specialty equipment, parts, tools, accessories and services to the electric utility transmission and distribution, telecommunications, and rail markets in North America, with a differentiated “one-stop-shop” business model. CTOS offers its specialized equipment to a diverse customer base for the maintenance, repair, upgrade, and installation of critical infrastructure assets, including electric lines, telecommunications networks, and rail systems. The Company’s coast-to-coast rental fleet of more than 10,350 units includes aerial devices, boom trucks, cranes, digger derricks, pressure drills, stringing gear, hi-rail equipment, repair parts, tools, and accessories. For more information, please visit customtruck.com.

Investors and others should note that we announce material financial and operational information to our investors using our investor relations website (investors.customtruck.com) in addition to press releases, SEC filings and public conference calls. The information we post through our investor relations website may be deemed material. Accordingly, investors should monitor our investor relations website in addition to following our press releases, SEC filings and public conference calls.

FORWARD-LOOKING STATEMENTS

This press release includes “forward-looking statements” within the meaning of the “safe harbor” provisions of the United States Private Securities Litigation Reform Act of 1995, as amended, and within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, and Section 27A of the Securities Act of 1933, as amended. When used in this press release, the words “estimates,” “projected,” “expects,” “anticipates,” “forecasts,” “suggests,” “plans,” “targets,” “intends,” “believes,” “seeks,” “may,” “will,” “should,” “future,” “propose,” “could,” “would,” and variations of these words or similar expressions (or the negative versions of such words or expressions) are intended to identify forward-looking statements. These forward-looking statements are not guarantees of future performance, conditions or results, and involve a number of known and unknown risks, uncertainties, assumptions and other important factors, many of which are outside the Company’s management’s control, that could cause actual results or outcomes to differ materially from those discussed in this press release. This press release is based on certain assumptions that the Company’s management has made in light of its experience in the industry, as well as the Company’s perceptions of historical trends, current conditions, expected future developments and other factors the Company believes are appropriate in these circumstances and at such time. As you read and consider this press release, you should understand that these statements are not guarantees of performance or results. Many factors could affect the Company’s actual performance and results and could cause actual results to differ materially from those expressed in this press release. Important factors, among others, that may affect actual results or outcomes include: increases in labor costs, changes in U.S. trade policy including tariffs, our inability to obtain raw materials, component parts and/or finished goods in a timely and cost-effective manner, and our inability to manage our rental equipment in an effective manner; competition in the equipment dealership and rental industries; our sales order backlog may not be indicative of the level of our future revenues; increases in unionization rate in our workforce; our inability to attract and retain key personnel, including our management and skilled technicians; material disruptions to our operation and manufacturing locations as a result of public health concerns, equipment failures, natural disasters, work stoppages, power outages or other reasons; any further increase in the cost of new equipment that we purchase for use in our rental fleet or for sale as inventory aging or obsolescence of our existing equipment, and the fluctuations of market value thereof; disruptions in our supply chain; our business may be impacted by government spending; we may experience losses in excess of our recorded reserves for receivables; uncertainty relating to macroeconomic conditions, unfavorable conditions in the capital and credit markets and our customers’ inability to obtain additional capital as required; increases in price of fuel or freight; regulatory, technological advancement, or other changes in our core end-markets may affect our customers’ spending; our strategic initiatives including acquisitions and divestitures may not be successful and may divert our management’s attention away from operations and could create general customer uncertainty; the interest of our majority stockholder, which may not be consistent with the other stockholders; volatility of our common stock market price; our significant indebtedness, which may adversely affect our financial position, limit our available cash and our access to additional capital, prevent us from growing our business and increase our risk of default; our inability to generate cash, which could lead to a default; significant operating and financial restrictions imposed by our debt agreements; changes in interest rates, which could increase our debt service obligations on the variable rate indebtedness and decrease our net income and cash flows; disruptions or security compromises affecting our information technology systems or those of our critical services providers could adversely affect our operating results by subjecting us to liability, and limiting our ability to effectively monitor and control our operations, adjust to changing market conditions, or implement strategic initiatives; we are subject to complex laws and regulations, including environmental and safety regulations that can adversely affect cost, manner or feasibility of doing business; we are subject to a series of risks related to climate change; and increased attention to, and evolving expectations for, sustainability and environmental, social and governance initiatives. For a more complete description of these and other possible risks and uncertainties, please refer to the Company’s Annual Report on Form 10-K for the year ended December 31, 2025, and its subsequent reports filed with the Securities and Exchange Commission. All forward-looking statements attributable to the Company or persons acting on its behalf are expressly qualified in their entirety by the foregoing cautionary statements.

CUSTOM TRUCK ONE SOURCE, INC.

NON-GAAP FINANCIAL AND PERFORMANCE MEASURES

In our press release and schedules, and on the related conference call, we report certain financial measures that are not required by, or presented in accordance with, United States generally accepted accounting principles (“GAAP”). We utilize these financial measures to manage our business on a day-to-day basis and some of these measures are commonly used in our industry to evaluate performance by excluding items considered to be non-recurring. We believe these non-GAAP measures provide investors expanded insight to assess performance, in addition to the standard GAAP-based financial measures. The press release schedules reconcile the most directly comparable GAAP measure to each non-GAAP measure that we refer to. Although management evaluates and presents these non-GAAP measures for the reasons described herein, please be aware that these non-GAAP measures have limitations and should not be considered in isolation or as a substitute for revenue, operating income/loss, net income/loss, earnings/loss per share or any other comparable measure prescribed by GAAP. In addition, we may calculate and/or present these non-GAAP financial measures differently than measures with the same or similar names that other companies report, and as a result, the non-GAAP measures we report may not be comparable to those reported by others.

Adjusted EBITDA. Adjusted EBITDA is a non-GAAP performance measure that we use to monitor our results of operations, to measure performance against debt covenants and performance relative to competitors. We believe Adjusted EBITDA is a useful performance measure because it allows for an effective evaluation of operating performance, without regard to financing methods or capital structures. We exclude the items identified in the reconciliations of net income (loss) to Adjusted EBITDA because these amounts are either non-recurring or can vary substantially within the industry depending upon accounting methods and book values of assets, including the method by which the assets were acquired, and capital structures. Adjusted EBITDA should not be considered as an alternative to, or more meaningful than, net income (loss) determined in accordance with GAAP. Certain items excluded from Adjusted EBITDA are significant components in understanding and assessing a company’s financial performance, such as a company’s cost of capital and tax structure, as well as the historical costs of depreciable assets, none of which are reflected in Adjusted EBITDA. Our presentation of Adjusted EBITDA should not be construed as an indication that results will be unaffected by the items excluded from Adjusted EBITDA. Our computation of Adjusted EBITDA may not be identical to other similarly titled measures of other companies.

We define Adjusted EBITDA as net income or loss before interest expense (excluding interest on floorplan financing), income taxes, depreciation and amortization, share-based compensation, and other items that we do not view as indicative of ongoing performance. Our Adjusted EBITDA includes an adjustment to exclude the effects of purchase accounting adjustments when calculating the cost of inventory and used equipment sold. When inventory or equipment is purchased in connection with a business combination, the assets are revalued to their current fair values for accounting purposes. The consideration transferred (i.e., the purchase price) in a business combination is allocated to the fair values of the assets as of the acquisition date, with amortization or depreciation recorded thereafter following applicable accounting policies; however, this may not be indicative of the actual cost to acquire inventory or new equipment that is added to product inventory or the rental fleets apart from a business acquisition. We also include an adjustment to remove the impact of accounting for certain of our rental contracts with customers containing a rental purchase option that are accounted for under GAAP as a sales-type lease. We include this adjustment because we believe continuing to reflect the transactions as an operating lease better reflects the economics of the transactions given our large portfolio of rental contracts. These, and other, adjustments to GAAP net income or loss that are applied to derive Adjusted EBITDA are specified by our senior secured credit agreement and the indenture of our senior secured notes.

Adjusted Gross Profit. We present total gross profit excluding rental equipment depreciation (“Adjusted Gross Profit”) as a non-GAAP financial performance measure. This measure differs from the GAAP definition of gross profit, as we do not include the impact of depreciation expense, which represents non-cash expense. We use this measure to evaluate operating margins and the effectiveness of the cost of our rental fleet.

Net Debt. We present the non-GAAP financial measure “Net Debt,” which is total debt (the most comparable GAAP measure, calculated as current and long-term debt, excluding deferred financing fees, plus current and long-term finance lease obligations) minus cash and cash equivalents. We believe this non-GAAP measure is useful to investors to evaluate our financial position.

Net Leverage Ratio. Net leverage ratio is a non-GAAP performance measure used by management and we believe it provides useful information to investors because it is an important measure to evaluate our debt levels and progress toward leverage targets, which is consistent with the manner our lenders and management use this measure. We define net leverage ratio as net debt divided by Adjusted EBITDA for the previous twelve-month period (“last twelve months,” or “LTM”).

Adjusted EBITDA is defined as net income (loss), as adjusted for provision for income taxes, interest expense, net (excluding interest on floorplan financing), depreciation of rental equipment and non-rental depreciation and amortization, and further adjusted for the impact of the fair value mark-up of acquired rental fleet, business acquisition and merger-related costs, including integration, the impact of accounting for certain of our rental contracts with customers that are accounted for under GAAP as sales-type lease and stock compensation expense. This non-GAAP measure is subject to certain limitations.