Introducing TM Marine Services

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.

WorkBoat Show 2025 Featured Our Coastal Landing Craft

Tideman Marine turned heads at the International WorkBoat Show 2025 with the debut of our 32 ft Coastal Landing Craft.  The unveiling drew strong attention from across the industry, highlighting our commitment to innovation, durability, and performance in demanding maritime environments. Built with advanced HDPE technology, this vessel is designed to deliver exceptional reliability and versatility for a wide range of operations.

We’re excited about the momentum and conversations sparked at the show—and this is just the beginning. Click here to learn more about our Coastal Landing Craft

MARSEC East Success!

We had a fantastic time exhibiting at Booth #16 during MARSEC East, held at the Hyatt Regency Crystal City from February 3–5, 2026. It was a great opportunity to connect with industry professionals, meet new faces, and showcase the advantages of HDPE boats and our innovative maritime solutions.

The energy on the show floor was incredible—making for a busy and rewarding first day filled with meaningful conversations and strong interest in what we do.

A special thank you to Commander Marc Hung Nguyen, USCG (Ret.), for joining us at the booth and hosting a memorable book signing of From Sea to Service. His inspiring journey from Vietnamese refugee to distinguished service member resonated with everyone who stopped by.

We’re grateful to everyone who visited us and look forward to continuing the conversations beyond MARSEC East!

Silverback Marine

Here is what Ian Gracey from Silverback Marine had to say about working with us on their first Tideman Marine hull.

“The Blue Ocean project was one of our most noteworthy projects of 2022. What was particularly special about this project was how well it was executed considering the number of “firsts”. As the first Tideman HDPE vessel built in the USA, the client also had a demanding list of special requirements, including dive access, storage, and a bold, aggressive aluminum superstructure to complement the euro-inspired lines that Tideman hulls are known for.

For the first client (Blue Ocean Mariculture) to be so high profile is truly inspiring and a testament in itself- an excellent case study to put the Tideman line to the test. At Silverback Marine, we expect these HDPE hulls to dramatically impact the industry. Our entire team of seasoned boatbuilders was completely impressed with the product. The durability is unmatched- combined with the design, performance, and the A-Team at Tideman Marine behind it, it’s going to change the way we think of workboats between 20’ and 50’ in nearly all sectors of commercial maritime.

Silverback Marine expects to see the Tideman Marine line extremely well received particularly in dive, tender, and tug-assist applications where durability is paramount. In addition to offering outfitting, electrical & systems, and superstructure install for Tideman Marine hulls, Silverback is also working with the Tideman on facilitating market service to the west coast, Alaska and Hawaiian regions,” said Ian Gracey, Silverback Marine.  Read more about this project here.

Work Boat Show

The International Work boat Show is the premier event for the commercial marine industry. Tideman Boats was proud to participate and co-exhibit with one of our Partners, Waypoint Marine Service in the 2022 Workboat Show. Our booth #763, featured a Tideman skiff hull outfitted by Waypoint Marine Service and a 9-meter bare hull. This was a great opportunity for us to showcase our hulls and services, and to connect with our current and potential customers.

“It takes a team of people to build a custom boat. Our team consists of the hull designers and fabricators at Tideman, and our professional rigging and project management staff. The first step in our process is to discuss the intended use, how the boat needs to perform, and the design features that need to be considered. Providing our clients with a custom boat that exceeds their expectations is our goal,” Timothy Feeney, Waypoint Marine Service.

The International Work boat Show is the largest event of its kind in North America and brings together the leading companies in the commercial marine industry. With over 600 exhibitors, this show is the perfect place to network with industry professionals, discover the latest products and services, and learn about the latest advancements in the commercial marine industry. Whether you are looking for new technology, new business opportunities, or just want to explore the latest trends, the International Work boat Show is the place to be. Learn more about the International Workboat Show here.