Company Insights

OSS customer relationships

Explore interactive graphBrowse insights index
OSS customer relationship map

One Stop Systems (OSS) — Customer map and what it means for investors

One Stop Systems designs, manufactures and sells rugged, high‑performance edge computing hardware and supporting engineering services to defense primes, government agencies, system integrators and industrial OEMs. The company monetizes primarily through hardware sales and engineering services, with a modest software and maintenance revenue stream; recent corporate actions (the sale of its Bressner reseller business) show management willing to reshape the revenue mix through divestiture as part of a profitability focus. For investors evaluating customer risk, the mix is characterized by concentration among a handful of defense and systems customers, a contract posture that combines short‑term purchase orders with supply agreements, and meaningful international exposure.
Explore deeper customer intelligence at NullExposure.

Quick investor take: the operating model in plain English

  • Revenue drivers. OSS is a hardware‑led vendor with engineering services layered on top; software and maintenance are ancillary. That structure produces lumpy, order‑driven revenue profiles tied to program wins and repeat orders from large primes and military customers.
  • Contracting posture. The company sells under a mix of contract supply agreements and purchase orders, indicating repeatable program business but also continued exposure to order timing and short‑term booking risk. This is a company‑level signal from the 2024 filing.
  • Customer concentration and criticality. The 10‑K discloses that a small group of customers accounted for material shares of revenue—a concentration profile that increases program risk but, given the defense focus, also links OSS to long‑lived platform programs.
  • Geography and maturity. OSS serves customers globally with historically heavy EMEA exposure through its former Bressner segment in Germany; management’s sale of that business reshapes geographic concentration and marginally improves margin focus.
  • Business segments. The company is first and foremost hardware and manufacturing, with engineering services and some software — an operating model that benefits from hardware margins on program installs but faces longer tail revenue in services.

If you want a consolidated view of customer exposure and program risk, start here: NullExposure home.

Customer-by-customer: the relationships investors should track

Raytheon

One Stop Systems names Raytheon among its largest customers and as an example of a customer with significant in‑house resources; Raytheon is repeatedly cited across OSS disclosures as a primary program counterparty. According to OSS’s 2024 Form 10‑K, Raytheon is one of the company’s top customers (FY2024 disclosure).

Alcon Gps

Alcon Gps is listed among the three customers (with Raytheon and Torc Robotics) that together accounted for 20.2% of consolidated 2024 revenue, indicating Alcon Gps is a material buyer in that period (One Stop Systems 2024 Form 10‑K).

Torc Robotics

Torc Robotics is likewise one of the three customers that made up 20.2% of OSS’s 2024 revenue, marking it as a significant source of sales for that fiscal year (One Stop Systems 2024 Form 10‑K).

Thales

OSS discloses that for 2024 39.7% of segment revenues were attributable to the top three customers, which included Thales alongside Raytheon and Torc in the segment‑level disclosure — making Thales an identifiable top contributor at the segment level (One Stop Systems 2024 Form 10‑K).

Lockheed Martin

Lockheed Martin is cited as another example of a customer with significant internal engineering resources, positioning OSS as a supplier to major defense primes rather than solely to end‑user operators (One Stop Systems 2024 Form 10‑K).

National Instruments

National Instruments is identified as a current OSS customer with significant in‑house resources — a sign OSS sells into large engineering organizations that can integrate or customize OSS hardware (One Stop Systems 2024 Form 10‑K).

Disguise Systems Limited

Disguise Systems Limited appeared in OSS’s 2023 disclosure as part of a group where 25.4% of consolidated revenue was attributable to Raytheon, Disguise Systems and the U.S. Navy for that year, indicating Disguise was a material buyer in 2023 (One Stop Systems 2024 Form 10‑K).

U.S. Navy

The U.S. Navy has been a material revenue source historically (part of the 25.4% group for 2023) and is also the counterparty named in recent award announcements: OSS disclosed aggregate new awards of $10.5 million supporting the P‑8A Poseidon program in a GlobeNewswire release in February 2026, highlighting program‑level recurring opportunities (GlobeNewswire, Feb 2026).

Safran Federal Systems

OSS secured a $1.2 million production order from Safran Federal Systems in December 2025 for 4U SDS servers used on naval vessels and aircraft, a contract that extends the company’s footprint into long‑lived defense platforms and incremental installed base expansion (market report/press coverage, Dec 2025).

Bressner Technology (sold) and Hiper Euro (buyer)

Bressner Technology was OSS’s German reseller and system‑integration segment; OSS disclosed the Bressner segment in Germany accounted for 55% of consolidated sales in 2024, an outsized EMEA exposure that management has since addressed by selling Bressner to Hiper Euro for roughly $22–22.4 million (purchase completed Dec 30, 2025; SDBJ/InsiderMonkey/Finviz coverage, Dec 2025–Jan 2026). The sale reduces direct European reseller exposure and monetizes a high‑revenue but lower‑margin part of the business.

Hiper Euro / Hiper Global

Hiper Euro (part of Hiper Global) completed the acquisition of Bressner from OSS at year‑end 2025, securing the European reseller footprint; press coverage confirms the buyer and the roughly $22M consideration, which management used to sharpen focus on profitability (SDBJ, InsiderMonkey, Finviz, Dec 2025–Jan 2026).

(Each relationship summary above is drawn from OSS’s 2024 Form 10‑K and subsequent press reports and releases cited where noted.)

What investors should watch next: risk, runway and catalysts

  • Concentration risk is real. The 10‑K disclosures that a small number of customers accounted for material shares of revenue translate into earnings volatility if program timing slips or awards do not repeat. Top‑three concentration greater than mid‑teens is a gating factor for valuation.
  • Contract timing versus program durability. OSS’s sales are executed under supply agreements and purchase orders, which creates a revenue profile that is both repeatable on program wins and sensitive to order timing; treat backlog and award announcements as lead indicators. This is a company‑level signal from the filings.
  • Defense programs provide longer‑term optionality. Recent U.S. Navy P‑8A awards and Safran orders tie OSS to long‑lived platforms, which reduces churn risk but concentrates exposure to defense budgets and prime contractor procurement cycles.
  • Geographic mix is changing. Historically heavy EMEA exposure via Bressner (55% of consolidated sales in 2024) has been materially reduced by the year‑end 2025 sale to Hiper Euro, shifting the company toward a more U.S. and global contractor focus while monetizing legacy reseller operations. That Bressner reference is explicit in OSS filings and press.
  • Margin trajectory depends on mix shift. The business will generate higher margin leverage if management successfully tilts revenue mix from low‑margin reseller distribution to higher‑margin hardware and engineered solutions sold directly to primes.

If you’re modeling revenue or counterparty risk, build assumptions that reflect short‑term order timing, defense program seasonality, and the reduced European reseller exposure after the Bressner sale. For a consolidated, actionable customer risk scorecard and program tracker, visit NullExposure.

Bottom line and next steps

One Stop Systems is a hardware‑centric, defense‑exposed supplier with material customer concentration and an operating model dependent on program wins and repeat orders. The sale of Bressner de‑risks the company’s EMEA reseller concentration and provides cash to support margin initiatives, while recent awards to the U.S. Navy and Safran demonstrate ongoing access to prime programs. For investors, the trade is between lumpy top‑line risk from concentrated customers and structurally attractive exposure to AI/sensor processing at the edge in defense platforms.

To review OSS’s customer exposure in an actionable dashboard and to track award activity in real time, start here: NullExposure.