Business Context and Reporting Period
Company: One Stop Systems, Inc. (OSS)
Filing Type: Form 10-K (Annual Report)
Period Ended: December 31, 2025
Business Overview: OSS designs, manufactures, and markets specialized rugged high-performance compute (HPC), switch fabrics, and storage systems for edge applications in AI/ML, sensor processing, and autonomy. The company targets military, aerospace, defense, and industrial markets requiring ruggedized solutions for mobile platforms (land, sea, air).
Strategic Shift: On December 30, 2025, the Company sold its German subsidiary, Bressner Technology GmbH (OSS GmbH), to Hiper Euro GmbH. This divestiture was classified as discontinued operations to prioritize the core business of deployable edge computing systems.
Key Financial Metrics (2025 vs. 2024)
| Metric | 2025 | 2024 |
|---|---|---|
| Revenue (Continuing Ops) | $32,215,500 | $24,558,809 |
| Gross Profit (Continuing Ops) | $15,982,483 | $622,924 |
| Gross Margin (Continuing Ops) | 49.6% | 2.5% |
| Operating Loss (Continuing Ops) | $(3,379,112) | $(15,663,485) |
| Net Income (Loss) | $5,087,694 | $(13,634,333) |
| Cash & Equivalents (Total) | $33,374,976 | $6,794,093 |
| Working Capital | $45,252,401 | Not explicitly stated |
| Debt (Continuing Ops) | $0 | $0 |
Note: Net Income for 2025 includes a significant gain from discontinued operations. Continuing operations remained loss-making on a GAAP basis.
Material Changes vs. Prior Period
- Revenue Growth: Revenue from continuing operations increased 31.2% to $32.2 million, driven by higher sales to the US Navy, defense prime contractors (P-8A Poseidon aircraft), and medical imaging OEMs.
- Margin Expansion: Gross margin improved dramatically from 2.5% to 49.6%. This was driven by a favorable product mix, the non-recurrence of $7.1 million in inventory adjustments and a $1.2 million contract loss provision recognized in 2024, and improved manufacturing absorption.
- Discontinued Operations: The sale of Bressner resulted in a pre-tax gain of $6.7 million, which was the primary driver converting a 2024 net loss into a 2025 net profit.
- Capital Raise: In October 2025, the Company completed a registered direct offering of 2.5 million shares, raising net proceeds of $11.6 million.
- Operating Expenses: R&D expenses increased 56.9% to $5.4 million due to investments in PCIe Gen 6.0 and U-BMC product development.
Guidance, Outlook, and Risks
Outlook & Strategy: Management expects to continue focusing on the rugged edge HPC market, leveraging a pipeline of target opportunities exceeding $1 billion. The strategy emphasizes securing multi-year contracts in military and commercial sectors, utilizing "commerciality" to maintain margins in defense procurements. No specific numerical guidance for 2026 revenue or earnings was provided in the text.
Key Risks & Contingencies:
- Customer Concentration: The top three customers accounted for 61% of 2025 revenue (22%, 22%, and 17% respectively).
- Supply Chain: Late 2025 saw a global shortage of memory products, leading to increased lead times and pricing volatility. The company is negotiating long-term agreements to secure supply.
- Government Spending: A significant portion of future sales is expected from U.S. government programs, which are subject to budgetary delays, shutdowns, and changing priorities.
- Competition: Risks include competition from major Tier 1 vendors and customers performing in-house design work.
Investor Verification Checklist
- Discontinued Operations Impact: Verify the sustainability of profitability excluding the one-time $6.7 million gain from the Bressner sale.
- Customer Concentration: Assess the risk associated with the top three customers representing 61% of total revenue.
- Supply Chain Resilience: Monitor the impact of memory shortages and component lead times on future gross margins and delivery schedules.
- Government Contract Pipeline: Evaluate the progress of converting the stated $1 billion pipeline into booked orders, given the long sales cycles in the defense sector.
- Cash Burn Rate: Review the cash flow from continuing operating activities, which used $6.6 million in 2025, against the $33.4 million cash balance to determine runway without further capital raises.