For nearly a decade, Sealy Technical Services built a reputation for solid naval architecture and marine engineering—the kind of practical, no-nonsense work that keeps vessels balanced, drydocks certified, and shipyards running smoothly.

Led by a marine engineering veteran with over 20 years of hands-on experience, Sealy earned the respect of shipyards, operators, and even maritime history enthusiasts.

At the same time, Tideman Marine was busy designing and building tough HDPE workboats—vessels built to take on harsh weather and heavy-duty operations without hesitation.

Now, those two worlds come together.

TM Marine Services is born.

This isn’t about reinventing the wheel—it’s about adding horsepower. By joining forces, we’ve expanded what we can deliver to owners and operators everywhere.

The result?
The same trusted engineers and naval architects.
The same proven, practical approach.
Now backed by boatbuilders who understand how every line on a drawing performs in the real world.

Stronger together. Smarter by design. Built for what’s next.