LEADERS IN MARINE INNOVATION

We are leaders in marine manufacturing, driven by passion behind each of our brands and the needs of our customers. We specialize in the design and innovation of specialty marine closures.

Follow the links above to learn more about each of our brands or explore our marine products.

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AdvanTec Marine is the parent brand to Diamond Sea Glaze, Freeman Marine, Pacific Coast Marine, Steelhead Marine, and USA Sliding Doors who specialize in the design, engineering, and manufacturing of specialty application closures. We are one of the largest marine manufacturers in the world, have geographic locations in the US & Canada, and ship to over 50 countries worldwide. Our customer base include North American & International Navies, Governments, Militaries, Commercial Vessel and Super Yacht Builders. We are a growing team of close to 300 people, and all of our products/solutions are conceived, designed, engineered and manufactured here in North America.

For over 40 years our brands have been collectively the leader in innovation and creative manufacturing systems and processes. We are committed to delivering solutions to meet customer requirements using our process of customer consultation, creative and collaborative thinking, innovative design solutions, and world class manufacturing systems. No matter what Vessel Type, Size or Industry your working on, we have the product you need. Our goal is to Build, Supply & Support the Finest Equipment in the industry.

We offer after sales service, installation & support for all products sold.

Who We Serve

MILITARY PATROL VESSELS