At Sealite LLC we are extremely proud of our products and our flexibility in providing solutions for navigation aids. Our company was started because we saw the need for high quality and dependable products for the aids-to-navigation market especially in creative solutions.

Watermark doesn't offer "throw away" solutions, we offer products that will provide years of trouble-free service. Our products are engineered to be the best available. Each unit is carefully designed for the environment in which it will be expected to operate. Furthermore, we listen to the men and women in the field who install and maintain aids to navigation, and constantly incorporate their feedback in our designs. Our buoys are modular, so that repairs can be made without having to discard the entire system. Our products are interchangeable and easily customized, allowing maximum flexibility in meeting your specific requirements. Our engineers have years of experience and can offer innovative solutions to your particular needs.

We distribute SEALITE solar lanterns in the US through our own SEALITEUSA and stock most of the product line here in New Hampshire, USA.

Let us help you with your next project. CONTACT

A Fleet of WNS 6000 buoys ready for deployment to Squam Lake, New Hampshire.

Fabrication of a bridge water-height guage in our custom sign shop.