More Than a Label: How Sealevel Delivers on the Full Promise of American Manufacturing

In today's world of fractured supply chains and rising geopolitical risk, the label “Made in the USA” carries a renewed sense of importance. But at Sealevel, it’s more than a label—it’s a comprehensive commitment. From product concept through long-term support, every phase of our process happens right here in the United States.

True U.S. Manufacturing, From Start to Finish

Many companies use “Made in the USA” to highlight final assembly or partial domestic operations. At Sealevel Systems, Inc., we take it further. We design, engineer, manufacture, test, certify, and support every commercial-off-the-shelf (COTS) and custom embedded computing system and I/O solution at our headquarters in Liberty, South Carolina. That includes the development of custom firmware, rigorous in-house quality testing, adherence to complex environmental and electrical standards, and a strong documentation process to support traceability and long-term product lifecycle management.

“If a company carries the ‘Made in the USA’ mark,” said Susan O’Hanlan, President of Sealevel, “you can have confidence in delivery times, capability, and quality.”

We're not shifting to meet demand for American-made solutions—we’re already built that way.

A Fully Integrated Facility Is a Strategic Advantage

When product design, engineering, and manufacturing are spread across different facilities, countries or even different continents, things get complicated fast. Miscommunication, extended lead times, and limited traceability can all add risk—especially for industries where reliability and compliance are non-negotiable.

Sealevel’s Director of Engineering, Jeff Baldwin, sees this domestic footprint as a major advantage in product development. “Because everything from engineering to procurement happens under one roof,” Baldwin explains, “we can involve multiple teams early in the design process. This helps us second-source parts, reduce risks, and make better-informed decisions from the start.”

Sealevel’s unified model eliminates those risks. With every key function under one roof, we deliver:

• Accelerated time to market: Engineering and manufacturing teams collaborate in real time, reducing iteration cycles and delays.
• Improved reliability: Tight integration allows for robust testing and immediate feedback loops, ensuring each product meets its required certifications and specifications.
• Lifecycle control: From initial design decisions to ongoing part sourcing and second-sourcing strategies, we manage every detail to ensure product longevity.
• Responsive support: Need a custom variant? Have a technical issue? You're working with the same team that built the solution in the first place.

Certifications That Reflect Real Commitment

We don’t just design and build in the U.S.—we do so under rigorous standards. Our ISO 9001:2015 and AS9100D certifications guide disciplined engineering, testing, and quality assurance processes. These aren't just checkboxes—they're integral to how we work, and why mission-critical customers choose Sealevel over other global industrial computer companies.

Built for Resilience and Long-Term Availability

Global events have made it clear: dispersed supply chains are vulnerable. Sealevel’s domestic model protects customers from volatility. Because we oversee our supply chain strategy directly and maintain close relationships with suppliers, we’re able to forecast challenges, second-source key components, and maintain availability over long product lifecycles.

Our partners count on us not just to deliver ruggedized products—but to deliver stability.

More Than a Manufacturer—A Long-Term Partner

Whether you're in defense and aerospace, public safety, medical, energy, or industrial automation, Sealevel’s U.S.-based operation offers something rare: a partner who meets and exceeds your requirements, supporting your mission from concept through deployment and beyond.

American-made isn’t something we’ve adopted. It’s who we are—and it’s how we help our customers stay ahead in a world that demands more certainty, more speed, and more trust.