One Stop Systems Company Overview

One Stop Systems, Inc. (Nasdaq: OSS) designs and manufactures rugged, enterprise-class computing, data-storage, and connectivity systems for artificial intelligence, machine learning, sensor processing, sensor fusion, and autonomous applications at the edge.
Its systems bring data-center-level processing power to aircraft, ships, submarines, military vehicles, autonomous equipment, medical imaging systems, and other environments where conventional servers cannot reliably operate.
Following the 2025 sale of its Bressner distribution subsidiary, OSS is a more focused pure-play provider of high-performance edge-computing systems for defense and specialized commercial customers.

One Stop Systems Financials and Latest Earnings

Second-quarter 2026 revenue increased 62.3% year over year to $9.35 million, compared with $5.76 million in the prior-year quarter.
Product revenue increased approximately 56% to $8.41 million and represented 89.9% of quarterly revenue.
Customer-funded development revenue increased approximately 145% to $944,000 and represented 10.1% of quarterly revenue.
Second-quarter gross profit was $3.65 million, producing a gross margin of 39.1%, compared with 41.3% one year earlier.
The lower quarterly gross margin reflected a greater contribution from engineering programs, prototypes, and low-rate initial production. These programs can carry lower early-stage margins before moving into higher-volume production.
OSS reported a GAAP loss from continuing operations of $7.3 million, or $0.29 per share. The result included a one-time $6.25 million legal-settlement charge connected to a former customer dispute.
Excluding the settlement and stock-based compensation, non-GAAP net loss improved to approximately $208,000, or $0.01 per share.
Adjusted EBITDA loss improved to approximately $300,000 from a loss of $1.8 million in the comparable quarter.
First-half 2026 revenue increased 58.8% to $17.4 million, while gross margin improved to 44.9% from 43.3%.
First-half operating cash usage improved to approximately $629,000 from $2.8 million a year earlier, despite a substantial inventory investment.
OSS finished June 2026 with approximately $31.4 million of cash, cash equivalents, and short-term investments, $38.1 million of working capital, and no outstanding debt.
Fiscal 2025 continuing-operations revenue was $32.2 million, representing 31.2% growth, with a 49.6% gross margin.
The sale of Bressner for approximately $22.4 million strengthened the balance sheet and removed a lower-margin distribution operation from the consolidated business.

One Stop Systems Stock Bull Case

Revenue growth is accelerating: Revenue grew 55% in the first quarter and 62% in the second quarter of 2026, suggesting that development programs are beginning to convert into production.
Bookings support continued expansion: Second-quarter bookings reached a company record of $15.1 million, bringing first-half bookings above $30 million and producing a year-to-date book-to-bill ratio of approximately 1.7.
Larger multiyear opportunities: OSS is supporting 14 programs with estimated multiyear potential exceeding $42 million each, compared with only one program of comparable scale three years earlier.
Major program potential: One new defense platform began with an $8.4 million contract and could generate approximately $44 million over four years.
Expanding commercial applications: Recent programs include medical imaging, autonomous construction and mining equipment, commercial robotics, and clean-energy infrastructure for data centers.
Attractive defense positioning: Growing requirements for AI, autonomy, C5ISR, electronic warfare, and sensor fusion are increasing the amount of computing power required aboard military platforms.
Early customer involvement: Customer-funded development allows OSS to influence system architecture, complete qualification work, and potentially secure an incumbent position before production begins.
Differentiated engineering: OSS specializes in integrating high-performance CPUs, GPUs, FPGAs, NVMe storage, and PCIe connectivity into compact systems engineered for shock, vibration, temperature, power, cooling, and space constraints.
Technology roadmap: Early customer discussions involving PCIe Gen6 could reinforce the company’s position in low-latency, high-bandwidth edge-computing systems.
Improving operating leverage: Excluding the legal settlement, operating expenses increased only modestly while revenue rose more than 60%.
Strong balance sheet: More than $31 million of cash and investments, combined with no debt, gives OSS resources to fund inventory, product development, organic growth, and selective acquisitions.
Focused corporate structure: Divesting Bressner concentrates management attention and capital on higher-value proprietary systems instead of lower-margin technology distribution.

One Stop Systems Stock Bear Case

Small operating scale: OSS remains a micro-cap hardware company with quarterly revenue below $10 million, making results sensitive to the timing of individual orders.
Profitability is not fully established: The company was still approximately break-even on a non-GAAP basis and slightly adjusted-EBITDA negative in the second quarter.
Customer concentration remains significant: Three customers generated approximately 39% of second-quarter 2026 revenue. During 2025, the three largest customers represented 61% of continuing-operations revenue.
Program-conversion risk: Customer-funded engineering, prototypes, tests, and initial production awards do not guarantee full-scale deployment.
Lumpy defense procurement: Government budgets, continuing resolutions, platform testing, contract protests, security requirements, and changing military priorities can delay orders.
Margin volatility: Quarterly margins can fluctuate substantially depending on the mix of engineering work, prototypes, low-rate production, inventory charges, and mature production programs.
Supply-chain exposure: OSS depends on advanced memory, CPUs, GPUs, and specialized components. Three suppliers represented approximately 77% of second-quarter purchases.
Inventory risk: The company invested roughly $7.1 million in inventory during the quarter. This supports future deliveries but could create write-down risk if orders are delayed or product configurations change.
Powerful competitors: Mercury Systems, Curtiss-Wright, and Crystal Group have larger defense relationships, broader product portfolios, and greater resources.
Dependence on technology partners: OSS relies on components from companies such as NVIDIA, AMD, and Intel. Allocation constraints, export controls, price increases, or architectural changes could affect delivery schedules.
Capital-raising and dilution risk: OSS has historically used equity offerings to finance operations and growth. Additional acquisitions or expansion could require future equity issuance.
Execution requirements are rising: Winning larger programs requires additional personnel, working capital, compliance infrastructure, manufacturing capacity, and program-management discipline.
Legal and commercial risk: The $6.25 million settlement of a former customer dispute was presented as nonrecurring but demonstrates the potential financial impact of contract disagreements.

One Stop Systems Management Outlook Following Q2 2026 Earnings

Management raised full-year 2026 revenue-growth guidance from 20%–25% to 25%–30%.
Based on 2025 continuing-operations revenue, the guidance implies approximately $40.3 million to $41.9 million of 2026 revenue.
Full-year gross margin is expected to be approximately 40%, with quarterly variation driven by program stage and product mix.
Management expects positive full-year EBITDA and adjusted EBITDA while continuing to invest in personnel and research and development.
Customer-funded development is expected to remain strong during the second half of 2026 and exceed its 2025 contribution.
Recent bookings are expected to convert into revenue during the second half of 2026 and into 2027.
Management believes its opportunity pipeline can support approximately 30% annual growth, although bookings are expected to remain uneven from quarter to quarter.
The pipeline is approximately balanced between defense and commercial opportunities, reducing dependence on a single end market.
Two 360-degree vision opportunities for U.S. Army vehicles have moved into testing and evaluation. OSS considers its solution production-ready, but management did not provide a procurement timeline.
Development priorities include PCIe Gen6 architectures, next-generation rugged AI platforms, and solutions for C5ISR, autonomy, situational awareness, naval computing, and sensor-intensive systems.
Management is also evaluating selective acquisitions that could add technology, customers, platform positions, or adjacent capabilities.
Supply-chain conditions, particularly memory lead times, remain an important execution variable. OSS increased inventory was deliberately increased to protect scheduled deliveries.

One Stop Systems Total Addressable Market and CAGR

OSS estimates that the global addressable market for rugged edge computing used in AI, machine learning, autonomy, and sensor-fusion applications is approximately $17 billion.
This company-defined TAM includes more than rugged servers. It encompasses specialized compute systems, GPU acceleration, data acquisition, storage, connectivity, engineering, and related edge infrastructure.
The directly comparable global rugged-server market is estimated at approximately $2.4 billion in 2026 and is projected to reach roughly $3.2 billion by 2033.
That forecast represents an expected 4.4% CAGR from 2026 through 2033. Other narrowly defined rugged-server forecasts project growth of approximately 5.5%–7% over the next several years.
The faster-growth portion of the opportunity is rugged AI infrastructure, where increasing sensor counts, autonomous systems, real-time inference, and disconnected operations require more computing performance per platform.
Principal growth drivers include defense modernization, autonomous vehicles and robotics, electronic warfare, C5ISR, medical imaging, industrial automation, precision agriculture, mining, and remote energy operations.
OSS has less than 1% penetration of its stated $17 billion TAM, leaving substantial theoretical headroom but also highlighting that successful execution and market-share gains matter more than overall industry growth.

One Stop Systems Products and Revenue Mix

Revenue mix is based on second-quarter 2026 continuing operations. OSS reports product revenue as one consolidated category and does not disclose separate revenue percentages for individual hardware or software families.

Product or Service	Description and Primary Applications	Direct Competing Products or Vendors	Q2 2026 Revenue Mix
Rugged high-performance servers	Custom and standard servers that combine enterprise CPUs, GPUs, memory, networking, storage, and thermal management in compact enclosures. Configurations include liquid-cooled systems, short-depth rack servers, expansion-optimized servers, and platforms engineered for aircraft, ships, vehicles, medical imaging, mining equipment, and autonomous machines.	Mercury RES X08 and RES X07 servers; Crystal Group FG2 and RE servers; Dell PowerEdge XR; Curtiss-Wright mission computers	Included in product revenue: 89.9% collectively
GPU compute accelerators	GPU-dense systems that accelerate AI training, inference, image processing, simulation, sensor fusion, and high-performance computing. Products can integrate NVIDIA accelerators and high-speed NVLink or PCIe fabrics. The rugged GAS-R platform is designed to deliver large-scale GPU performance outside conventional data centers.	Mercury GPU-enabled RES servers; Crystal Group GPU servers; Systel rugged AI systems; Dell PowerEdge XR	Included in product revenue: 89.9% collectively
PCIe expansion systems	Systems such as the 4UP, 4UPF, 4UV, EB4400, and Ponto platforms allow a host server to connect to additional GPUs, FPGAs, network cards, or storage devices. These products address applications requiring more accelerator capacity than a server chassis can provide.	Cubix GPU expansion systems; Liqid composable infrastructure; Dolphin Interconnect; HighPoint and Amfeltec expansion products	Included in product revenue: 89.9% collectively
PCIe adapters, backplanes, cables, and link kits	Gen3, Gen4, Gen5, and emerging Gen6 components create low-latency connections between servers, accelerators, storage, and I/O devices. OSS’s signal-integrity and PCIe-switching expertise is a foundational capability across its portfolio.	Broadcom PCIe switching; Microchip Switchtec; Dolphin Interconnect; One Stop Systems-compatible integrators	Included in product revenue: 89.9% collectively
Rugged flash and NVMe storage	High-capacity, removable storage systems used for real-time sensor capture, surveillance, reconnaissance, test data, and secure data offload. Centauri supports up to 256 TB in hot-swappable NVMe canisters, while military storage units support programs such as the Navy’s P-8A Poseidon aircraft.	Mercury Rugged Data Storage; Crystal Group rugged storage; Curtiss-Wright data recorders; General Micro Systems storage platforms	Included in product revenue: 89.9% collectively
Data-acquisition and recording platforms	Systems connect directly to sensors, ingest large data streams, and move information to GPU memory or NVMe storage with minimal latency. Applications include radar, electronic warfare, intelligence, surveillance, autonomous navigation, and industrial testing.	Curtiss-Wright data-acquisition systems; Abaco Systems sensor-processing platforms; Mercury mission systems	Included in product revenue: 89.9% collectively
Ion Accelerator software	Storage software supporting SAN, NAS, data recording, NVMe-over-Fabrics, and GPU-direct data movement. It helps customers manage high-throughput storage and reduce bottlenecks between sensors, storage, and processors.	IBM Storage Scale; Weka; VAST Data; BeeGFS; vendor-specific NVMe storage software	Included in product revenue: 89.9% collectively
Customer-funded development	Paid engineering, customization, prototyping, testing, qualification, cooling design, ruggedization, and system integration. These engagements can lead to low-rate initial production, larger deployment orders, sustainment revenue, and technology refreshes.	Internal engineering teams at defense primes; Curtiss-Wright integration services; Mercury Systems integration; Crystal Group custom engineering	10.1%
Total product sales	All hardware, embedded software, integrated systems, and related product shipments. OSS does not disclose product-family percentages within this category.	—	89.9%
Total customer-funded development	Contracted engineering and development services.	—	10.1%

One Stop Systems Business Model

OSS sells specialized computer hardware and embedded software under purchase orders and contract-supply agreements.
Most revenue is recognized when finished products are shipped and control transfers to the customer.
The company combines commercial data-center components with proprietary system architecture, PCIe engineering, cooling, mechanical design, ruggedization, firmware, and storage software.
Customer-funded development creates a paid pathway from system concept to prototype, testing, qualification, low-rate production, and full deployment.
Once designed into an aircraft, vehicle, ship, medical system, or autonomous platform, OSS can generate multiyear production, maintenance, sustainment, and technology-refresh revenue.
Solutions range inventory includes configurable commercial off-the-shelf products and highly customized systems designed for a specific platform or mission.
Products are sold least partly through a direct sales organization, government relationships, system integrators, original-equipment manufacturers, and reminders; and through global distributors.
The model is relatively capital-light because OSS purchases commercial components and uses external manufacturing partners where appropriate while concentrating internal resources on engineering, integration, testing, qualification, and program management.
Gross margins depend heavily on product mix. Development programs and prototypes may initially carry lower margins, while specialized production programs, favorable pricing, software, and efficient manufacturing can produce higher margins.
OSS seeks platform-incumbent positions where qualification requirements and switching costs can create repeat orders and longer customer relationships.

One Stop Systems Customers

OSS serves the U.S. military, defense prime contractors, government systems integrators, aerospace companies, medical-equipment manufacturers, autonomous-equipment developers, industrial OEMs, and technology companies.
The U.S. Navy is a disclosed customer for rugged removable storage used aboard the P-8A Poseidon reconnaissance aircraft and for additional naval data-storage applications.
OSS received $10.5 million of new P-8A program awards in early 2026, following earlier production orders for military-specification storage units.
Safran Federal Systems is a disclosed customer for specialized defense-platform technology.
OSS works with U.S. Special Operations Command through a cooperative research-and-development relationship focused on rugged high-performance computing.
Other customers are generally not identified because of commercial confidentiality or classified defense requirements.
Current customer categories include a medical-imaging OEM using liquid-cooled servers for breast-cancer screening, a government integrator deploying short-depth servers aboard vessels and aircraft, an autonomous construction and mining customer, a commercial robotics company, and a clean-energy technology company supporting data-center applications.
A commercial robotics program recently moved from prototype development into production and could generate approximately $10 million–$15 million of cumulative orders over five years.
A renewable-energy computing program could develop into an estimated $10 million opportunity over five years.
Three customers represented approximately 39% of second-quarter 2026 revenue, down from the 61% contribution made by the three largest customers during full-year 2025.
Customer relationships can be long-lasting once OSS hardware is qualified and embedded in a platform, but reliance on a limited number of major programs remains a material risk.

One Stop Systems Competitors

Mercury Systems
- The closest large-scale competitor in rugged enterprise computing for aerospace and defense.
- Directly competing products include RES X07 and RES X08 rugged rack servers, GPU-enabled edge-computing systems, high-density modular servers, and Rugged Data Storage systems.
- Mercury competes in AI, signals intelligence, radar processing, sensor fusion, C4ISR, cybersecurity, and airborne or naval computing.
- Its advantages include a larger installed base, advanced security capabilities, broader defense relationships, and significantly greater financial resources.
- OSS competes through more flexible customization, high-density PCIe architectures, faster integration of commercial technology, and compact solutions for specific platforms.
Crystal Group
- A major supplier of rugged servers, embedded computers, displays, networking equipment, and data-storage systems for military and commercial environments.
- Directly competing products include FG2 1U–3U GPU servers, RE-series sealed computers, rugged storage systems, and vehicle-mounted computing platforms.
- Crystal competes directly for AI, sensor fusion, tactical edge, autonomous vehicle, naval, airborne, and industrial programs.
- Its strengths include extensive ruggedization experience, broad MIL-STD-qualified offerings, long warranties, and established relationships with defense integrators.
- OSS differentiates itself through PCIe expansion expertise, very high compute density, low-latency data movement, and architectures designed around enterprise-class accelerators.
Curtiss-Wright Defense Solutions
- A large defense-electronics company offering rugged embedded computing, tactical communications, data acquisition, storage, and mission-processing systems.
- Directly competing products include DuraCOR rugged mission computers, PacStar Modular Data Center systems, rugged NVIDIA GPU modules, OpenVPX processing cards, and aerospace data-recording platforms.
- Curtiss-Wright has a substantial presence in aircraft, naval vessels, ground vehicles, electronic warfare, sensor processing, and command-and-control systems.
- Its advantages include scale, long-standing defense-program positions, security certifications, OpenVPX and SOSA products, and broad subsystem-integration capabilities.
- OSS generally targets applications that require more data-center-like performance, dense PCIe expansion, or rapid customization in compact rugged form factors.

One Stop Systems Founding History

One Stop Systems was founded in California in 1998 by Steve Cooper and Mark Gunn.
The business was initially organized as One Stop Systems LLC before converting into a California corporation in 1999.
OSS built its early reputation around PCI and PCI Express expansion technology, allowing computers to connect to more storage, graphics, networking, and accelerator devices.
As GPUs and flash storage became important for high-performance applications, the company expanded from individual components into integrated computing and storage systems.
In 2016, OSS merged with Mission Technology Group, better known as Magma, combining two established PCIe-expansion businesses.
OSS acquired the Ion storage-acceleration business in 2017, adding software for high-speed SAN, NAS, and data-recording applications.
The company reincorporated in Delaware in December 2017 and began trading on Nasdaq under the ticker OSS on February 1, 2018.
In August 2018, OSS acquired Concept Development Inc., adding aerospace engineering, military-grade manufacturing, flight-safety, power-distribution, and certification capabilities.
In October 2018, OSS acquired Germany-based Bressner Technology, expanding its European distribution and systems-integration presence.
A new leadership team began repositioning the company in 2023 around defense, rugged edge computing, AI, autonomy, and larger multiyear programs.
OSS sold Bressner for approximately $22.4 million in December 2025, exiting European technology distribution and concentrating the business on proprietary, higher-value edge-computing platforms.
The modern OSS strategy combines more than 25 years of PCIe and system-engineering experience with growing demand for AI processing aboard mobile, remote, and mission-critical platforms.