10-K: Amentum Reports Strong FY25 Growth, Returns to Profitability

Amentum Holdings, Inc. announced a significant revenue increase and a return to net profitability for fiscal year 2025, driven by its merger with CMS and a robust $47.1 billion backlog.

Summary

• Revenues for the fiscal year ended October 3, 2025, increased by $6,005 million (71.6%) to $14,393 million, primarily due to the merger with CMS.
• The company reported a net income attributable to common shareholders of $66 million for FY2025, a significant improvement from a net loss of $82 million in FY2024.
• Adjusted EBITDA increased to $1,104 million in FY2025 from $618 million in FY2024.
• Total backlog grew by $2.1 billion to $47.1 billion as of October 3, 2025, providing strong revenue visibility.
• The company completed the sale of its Rapid Solutions business to Lockheed Martin Corporation for $360 million in cash on June 26, 2025.
• Voluntary principal payments totaling $722 million were made on the Term Loan during FY2025, contributing to a decrease in interest expense.
• Approximately 81% of the company's revenues in FY2025 were derived from contracts with the U.S. federal government.
• The effective tax rate for FY2025 was 48.7%, up from 32.5% in FY2024, primarily due to valuation allowance recognition and the tax effect of the Rapid Solutions divestiture.

Sentiment

Score: 7

Explanation: The company demonstrated strong revenue growth and returned to profitability, largely driven by the strategic CMS merger. A substantial backlog provides future revenue visibility, and management is actively reducing debt. However, the high effective tax rate, increased expenses post-merger, and the ongoing federal government budget uncertainty and shutdown present notable headwinds.

Positives

• Achieved substantial revenue growth of 71.6% to $14,393 million, largely due to the successful integration of the CMS merger.
• Returned to net profitability with $66 million in net income attributable to common shareholders, reversing a previous year's loss.
• Increased Adjusted EBITDA to $1,104 million, indicating improved operational performance.
• Maintained a strong total backlog of $47.1 billion, providing significant future revenue visibility and stability.
• Successfully divested the Rapid Solutions business for $360 million in cash, optimizing the portfolio.
• Reduced Term Loan principal by $722 million through voluntary payments, decreasing overall indebtedness and interest expense.
• Demonstrated effective internal control over financial reporting, as affirmed by management and independent auditors.
• Strategic alignment with well-funded, long-term government priorities, including modernization, clean energy, and advanced technologies.

Negatives

• Experienced a high effective tax rate of 48.7% in FY2025, influenced by valuation allowance recognition and divestiture tax effects.
• Selling, general, and administrative expenses increased by 74.5% to $616 million, and amortization of intangibles rose by 110.1% to $479 million, primarily due to the CMS merger and associated integration costs.
• Equity earnings of non-consolidated subsidiaries decreased, partially due to the utilization of fair market value adjustments.
• The federal government experienced a shutdown from October 1, 2025, to November 12, 2025, and is operating under a continuing resolution until January 30, 2026, which introduces budgetary uncertainty and potential delays.
• Cash and cash equivalents decreased slightly from $452 million to $437 million.
• The company carries a significant amount of indebtedness, with total debt (net of discount and financing costs) at $3,943 million.

Risks

• Significant portion of revenues (81% in FY2025) derived from U.S. federal government contracts, which are subject to termination for convenience, budget delays, competitive pressures, and security clearance requirements.
• U.S. federal government contract work is regularly reviewed and audited, potentially leading to payment delays, non-receipt of award fees, legal actions, fines, penalties, and reputational harm.
• Delays in the federal government's budget process, prolonged continuing resolutions, or government shutdowns can materially adversely affect business, financial condition, and results of operations.
• Engages in a highly competitive business, risking loss of market share and reduced profitability if unable to compete effectively.
• Results of operations depend on the award and timing of new contracts, which can fluctuate significantly.
• Continuing elevated inflation, rising or continued high interest rates, and/or costs could reduce demand for services and decrease profit on existing contracts, particularly fixed-price ones.
• Work sites have inherent safety and environmental risks, with potential for injuries, disabilities, loss of life, significant financial losses, reputational harm, and civil/criminal liabilities.
• Fixed-price contracts subject the company to risks of cost overruns if estimates prove inaccurate or circumstances change.
• Failure to meet performance requirements or contractual schedules could adversely affect business, financial condition, and results of operations.
• Backlog may be adjusted, canceled, or suspended by customers and is not necessarily indicative of future revenues or earnings.
• Provision of services may expose the company to significant monetary damages or criminal violations, with insurance policies potentially providing inadequate coverage.
• Employee, agent, or partner misconduct, or overall failure to comply with laws or regulations, could weaken the ability to win contracts, resulting in reduced revenues and profits.
• Cybersecurity or privacy breaches, or systems and information technology interruption or failure, could adversely impact operations, expose to significant financial losses, and cause reputational harm.
• Inadequate indemnification for nuclear services, or business slowdowns due to extensive regulatory processes or socio-political opposition to nuclear technologies, could adversely affect business.
• Uncertainty over global tariffs or their financial impacts may negatively affect results.
• International operations are exposed to additional risks and uncertainties, including unfavorable political developments, weak foreign economies, and high security risks.
• Use of joint ventures, partnerships, and strategic investments exposes the company to risks and uncertainties, many of which are outside of its control.
• An impairment charge on goodwill or intangible assets could have a material adverse impact on financial position and results of operations.
• Business strategy relies in part on acquisitions and strategic investments, which present risks such as assumption of unknown liabilities, failure to realize anticipated benefits, and integration difficulties.
• As a U.S. federal government contractor, the company is subject to various procurement and other laws and regulations (e.g., FAR, FCA, ITAR, CMMC), and failure to comply or changes in these laws could adversely affect the business.
• Significant amount of indebtedness and associated covenants could adversely affect financial condition or decrease business flexibility.
• Variable interest rates on the credit facility subject the company to interest rate risk, potentially increasing debt service obligations.
• May not realize the anticipated financial and other benefits, including growth opportunities, expected from the CMS Transaction.
• If the distribution in connection with the Transaction does not qualify as tax-free, Jacobs and/or Jacobs shareholders could pay substantial U.S. federal income taxes, and Amentum could be obligated to indemnify Jacobs.
• Restrictions from the Transaction could limit the ability to implement strategic initiatives that would otherwise be beneficial.
• Amentum Equityholder owns a significant percentage of common stock, influencing matters requiring shareholder approval and potentially creating conflicts of interest.
• Quarterly results may fluctuate significantly due to various factors, negatively impacting the stock price.
• Potential dilution of ownership in the future due to equity awards or future financing.
• Sales of substantial amounts of common stock in the public market could cause the stock price to decline.
• The market price of common stock may be volatile due to numerous internal and external factors.
• Climate change-related weather issues could have a material adverse impact on equipment and infrastructure, negatively affecting business.
• May be affected by market or regulatory responses to climate change, potentially increasing costs or reducing demand for services.
• Demand for services is impacted by economic downturns, reductions in government or private spending, and times of political uncertainty.
• May not be able to protect its intellectual property or that of its customers, reducing competitive advantage.
• Impairment of long-lived assets or restructuring activities may require significant charges to earnings.
• Success depends on the ability to work with complex and rapidly changing technologies, including artificial intelligence, which presents risks of flaws, biases, and legal liability.
• Maintains cash at financial institutions, often in balances exceeding federally insured limits, risking loss if institutions fail.
• Businesses could be materially and adversely affected by extraordinary or force majeure events beyond control, such as natural disasters, pandemics, and geopolitical conflicts.
• Expiration of collective bargaining agreements could result in increased operating costs or work disruptions.
• Benefit plan expenses and obligations may fluctuate depending on various factors, including inflation and interest rates.
• Current and future environmental, health, and safety laws could require significant additional costs to achieve or maintain compliance and/or to address liabilities.
• A failure to attract, train, retain, and utilize skilled employees and the senior management team would adversely affect the ability to execute strategy and may disrupt operations.
• May experience a negative impact to reputation as a result of socio-political opposition to U.S. government policies reflected in contracts.

Future Outlook

Amentum anticipates continued growth, expecting U.S. federal government contracts to remain its primary revenue source. The company believes its core funding markets will benefit from bipartisan support, although timely appropriations are uncertain. It is strategically aligned to capitalize on increasing demand for outsourced services, global clean energy solutions, government modernization, focus on near-peer competitors, Indo-Pacific initiatives, and advanced technologies like hypersonics and AI. Strategic capital allocation will prioritize near-term debt reduction and long-term stakeholder value, with no cash dividends expected in the immediate future.

Management Comments

• Our mission-oriented and highly skilled personnel enable us to serve a diverse range of requirements for our customers.
• We believe our scale and breadth of capabilities position us well in the marketplace as our customers' requirements increasingly necessitate a full lifecycle partner equipped with next-generation engineering solutions to solve their most complex challenges.
• We have a compelling industry platform of scale with excellent revenue visibility supported by $47.1 billion of backlog as of October 3, 2025, and attractive growth opportunities.
• We believe our scale, efficiency and diversity enables Amentum to generate substantial free cash flow while driving growth.
• We take pride in our people and our culture—we foster an entrepreneurial approach to innovation and respond with agility to deliver exceptional performance.
• We view the budget environment as constructive and believe core funding sources for our primary customer-based markets will continue to experience bipartisan tailwinds, there can be no certainty about the level of funding for any particular GFY or that appropriations bills will be passed in a timely manner.
• Management is of the opinion that any liability or loss associated with such matters [legal proceedings], either individually or in the aggregate, will not have a material adverse effect on the Company's operations and liquidity.

Industry Context

Amentum operates in a highly competitive global market for specialized engineering and technology solutions, with the U.S. federal government being its largest customer. The industry is characterized by an increasing demand for outsourced services, a global push for clean and sustainable solutions, and significant government investment in modernization priorities, including advanced technologies and addressing near-peer competitor threats. The company's strong presence in the U.K. and Australian defense and energy markets positions it to benefit from international partnerships like AUKUS. The sector is also navigating evolving regulatory landscapes, particularly concerning cybersecurity (CMMC) and climate change, which present both challenges and opportunities for specialized service providers.

Comparison to Industry Standards

• Amentum competes against a broad range of companies, including large defense contractors like Boeing Co., BAE Systems plc, General Dynamics Corporation, L3Harris Technologies Inc., Lockheed Martin Corporation, Northrop Grumman Corporation, and RTX Corporation.
• In the U.S. government services sector, key competitors include Booz Allen Hamilton Inc., CACI International Inc., KBR Inc., Leidos Holdings Inc., ManTech International Corporation, Parsons Corporation, Peraton Corporation, Science Applications International Corporation, and V2X, Inc.
• For its U.K. defense market, Amentum competes with Babcock International Group plc, BAE Systems plc, Mott MacDonald Group Limited, Serco Group plc, and Mace Group.
• In the global environmental business, competitors include AtkinsRealis, Bechtel Global Corporation, BWX Technologies Inc., Honeywell International Inc., Huntington Ingalls Industries, Inc., Fluor Corporation, and Westinghouse Electric.
• The company emphasizes its scale and breadth of capabilities as a competitive advantage, positioning it as a turn-key solutions provider for large and complex contracts, which aligns with a broader industry trend of customers seeking comprehensive solutions from diversified providers.
• Amentum's $47.1 billion backlog demonstrates a strong competitive position and revenue visibility, comparable to leading players in the government services and engineering sectors.

Corporate Governance

Legal Proceedings

• The company is involved in various claims, disputes, lawsuits, investigations, audits, and administrative proceedings arising in the normal course of business.
• Management believes that any liability or loss associated with these matters, individually or in aggregate, will not have a material adverse effect on the company's operations and liquidity.
• U.S. Government contracts are subject to investigations by various agencies, which could result in administrative, civil, or criminal liabilities, but currently no investigations are expected to have a material impact on results of operations.
• Payments on cost-plus-fee contracts are provisional and subject to adjustments upon audit by the Defense Contract Audit Agency (DCAA).

Related Party Transactions

• Related party receivables due from equity method investments totaled $63 million as of October 3, 2025.
• Related party revenues earned from equity method investments amounted to $276 million for the year ended October 3, 2025.
• Amentum Equityholder contributed $235 million in cash to the company in fiscal year 2024, immediately prior to the CMS Transaction.
• Amentum Equityholder distributed its shares of common stock to its limited partners (Sponsor Stockholder) post-merger.
• The Sponsor Stockholder (affiliates of private equity firms) holds a substantial portion of Amentum's common stock and has rights to nominate directors to the Board based on ownership levels.
• The company's amended and restated certificate of incorporation includes provisions for the allocation of certain corporate opportunities between the company and affiliates of Amentum Equityholder.

Stakeholder Impact

• **Shareholders:** Experienced a return to profitability and significant revenue growth, but face potential stock price volatility, dilution from future equity awards, and the influence of Amentum Equityholder. No cash dividends are expected in the near term.
• **Employees:** Benefit from a focus on attracting, developing, and retaining talent, comprehensive total rewards, and leadership development programs. Risks include potential for increased operating costs or work disruptions due to collective bargaining agreements.
• **Customers:** Continue to receive advanced engineering and technology solutions aligned with modernization priorities. Face risks from government budget delays, contract cancellations, and potential performance issues.
• **Suppliers/Creditors:** Impacted by the company's financial health and ability to service its debt obligations. Exposed to risks if banking industry issues affect partners.
• **Communities:** Benefit from the company's commitment to environmental, health, and safety excellence, and sustainable business practices, including initiatives to reduce environmental impact.

Next Steps

• Adopt interim disclosure requirements for ASU 2023-07 in the first quarter of fiscal year 2026.
• Adopt ASU 2023-09 (Income Taxes: Improvements to Income Tax Disclosures) in fiscal year 2026.
• Continue to monitor trade policy developments closely and mitigate adverse impacts of any changes.
• Continue to evaluate readiness and prepare for the Department of War's Cybersecurity Maturity Model Certification (CMMC) requirements.
• Submit a portion of excess cash flow as a Term Loan prepayment annually, starting in fiscal year 2026.
• The Board of Directors will determine future dividend payments based on financial condition, earnings, capital requirements, and other relevant factors.

Key Dates

Recommendation

Amentum demonstrated strong financial performance in FY2025, with significant revenue growth and a return to profitability, largely driven by the strategic CMS merger. The substantial $47.1 billion backlog provides excellent revenue visibility. However, the company carries a notable debt load, experienced a high effective tax rate, and faces ongoing uncertainties related to the U.S. federal government's budget process and potential shutdowns. While the strategic direction and operational improvements are positive, these headwinds suggest a 'hold' recommendation until there is more clarity on sustained debt reduction, tax efficiency, and government spending stability.

Keywords

Government services, Engineering solutions, Technology solutions, Defense, Space, Cybersecurity, Environmental remediation, Nuclear power, Digital modernization, SEC filing, 10-K, Amentum, AMTM, Merger, Acquisition, Backlog, Financial results, Risk factors, Government contracts, Public company, Debt reduction, Divestiture