
Twin Vee PowerCats has launched Black Line Defense, a wholly owned subsidiary focused on crewed and autonomous maritime platforms for defence and government use.
The Florida-based firm says the new subsidiary will support programmes across federal, state and municipal agencies that require mission‑ready vessels.
“We believe that Twin Vee has the right foundation to compete in the government and defense markets, and Black Line Defense builds directly on that strength,” says Carol Craig, member of Twin Vee’s board of directors and CEO and founder of defence technology company Sidus Space. “The combination of proven marine platforms, advanced technologies and disciplined execution positions the company to pursue meaningful opportunities with agencies that require reliable, high‑performance solutions.”
Twin Vee says the subsidiary plans to pursue opportunities related to autonomous maritime systems and crewed vessels with the US Department of Defense, the Department of Homeland Security and other organisations involved in maritime patrol, interdiction, port security and coastal operations.

“We’ve been steadily expanding our engineering capabilities and production capacity, and Black Line Defense is the next logical step,” says Joseph Visconti, president and CEO of Twin Vee PowerCats. “By combining our advanced technologies with the manufacturing foundation we’ve built over decades, we predict that we can pursue autonomous, government and defense opportunities with confidence and discipline.”
Twin Vee has previously supplied vessels to municipalities, colleges, fire departments and state agencies.
“Over the years, I’ve personally designed and built boats for state and municipal organisations with demanding, real‑world requirements,” says Preston Yarborough, vice president of Twin Vee PowerCats Co. “Those projects require durability, reliability and clear accountability. Black Line Defense builds directly on that experience, allowing us to deliver mission‑ready platforms that agencies can trust from day one.”
Visconti says the company operates a vertically integrated manufacturing facility that includes in‑house design, engineering, tooling, mould construction, composite fabrication, wire harness manufacturing, propulsion integration and final assembly. The facility includes a 46ft, five‑axis CNC router used for the internal production of tooling, moulds and composite components.

“Our background provides Black Line Defense with immediate credibility and a clear understanding of the performance, documentation and accountability standards required in government procurement,” Visconti adds. “We believe that Twin Vee’s infrastructure would allow us to efficiently scale up ‘Small Unmanned Surface Vessel’ (sUSV) production to meet demand.”
Black Line Defense intends to adapt existing hull designs rather than develop new experimental platforms.
“Black Line Defense is not a concept company,” Visconti adds. “It is built on real boats, real facilities and real experience. Our goal is to compete for meaningful government programs by delivering platforms that can be fielded, supported and scaled.”
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