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Over 50 years of marine industry passion and purpose — a dedication to ‘always do the right thing.’ 

More than 50 years ago, Tri-State Marine began as the result of a couple’s vision to build an enduring marine business and create a legacy for their family, while delivering on the needs of those who love the water. They instilled their personal integrity, established enduring relationships with the best brands, built a foundation with ever-loyal leadership and employees and delivered on their passion for high-quality service. What resulted is a widely considered to be the hallmark of leading boat dealerships in the area — with hundreds of customer testimonials and decades of awards as proof points.

Today, Tri-State Marine continues its tradition of what's made it special through countless years  — remembered mostly by the simple happiness and priceless memories created along the way. Now under its next generation of ownership, the Rhodes family takes the helm of the extraordinary legacy created by Tom & Mary Beth Magenau long ago. We do so with the same passion for our customers, yet with renewed energy to take Tri-State Marine into a new era — building on its foundation to become even greater known throughout the Chesapeake Bay Region. We recognize that the same basic formula that has driven our past success persists and will drive our future success: to always do the right thing — by our people and especially YOU, our customers.

We look forward to continuing to serve you and the entire Washington, D.C., Virginia and Maryland communities as your Chesapeake Bay Boating Connection. Whether you’re looking for a new boat or a pre-owned boat, marine services of any kind, parts, accessories or supplies, a boat slip or storage, bait and tackle or spot to get you into the water and fueled-up for the day, Tri-State Marine is your destination for all of your boating needs. 

We are always available to you — please tell us how we can make boat ownership easier and more enjoyable.

Explore, dream, discover – happy boating!

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Keith A. Rhodes
Owner & CEO, Tri-State Marine
Bluewater Capital, Inc.

We're in Good Company

Each year, we service and store hundreds of boats for our customers throughout the Chesapeake Bay region. One of the more recognizable is the locally famous Boatyard Bar & Grill boat — where you can find her and her crew each Wednesday night filming the weekly Annapolis Yacht Club's Sailboat Races. The team also goes as far as Key West filming many well-known and equally exciting regattas up and down the East Coast. The boat is well-cared for and managed by Bruce Nairn from T2PTV Sailing on Demand, who entrusts Tri-State Marine with her ongoing well-being.

When asked “Why Tri-State Marine?”, Bruce emphatically states “the relationships, trust and the continued integrity of the team there is why the Boatyard Bar & Grill Boat is serviced exclusively by Tri-State Marine – and will be for many years to come.”

  • 1.6K

    Average number of boat services performed each year.

  • 97.6%

    Average customer satisfaction score on Grady-White’s 3-year customer satisfaction index.

  • 58

    Number of years in the marine business — founded in 1965.

  • 100%

    Yamaha Customer Satisfaction over the past 12 months.

  • 18Y

    Average tenure in years of employees who work for us.

  • 6.5K

    Estimated number of boats sold through the years.

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Tri-State Marine – Deale | Shady Side

For more than 50 years, Tri-State Marine has been the hallmark of leading boat dealers in the area. From humble beginnings to the leading boat dealer in the Greater Chesapeake Bay area, Tri-State Marine Deale, Maryland is our flagship location, offering the largest indoor boat showroom in the United States, a multiple building service center, onsite testing tanks and storage for over 300 boats across 10+ fenced and secured acres. Here you’ll find seasoned sales advisors and service pros who will take care of your every boating need.

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Tri-State Marine – Annapolis Waterfront

Our newest addition to Tri-State Marine — on the Annapolis Waterfront at Bert Jabin’s Yacht Yard. Easily accessible by land or water on Back Creek in Annapolis, here you’ll find a great selection of Grady-White & Parker Offshore boats. You'll also find our best-in-class service — particularly our Yamaha Outboard service, where we are 5-star Gold Certified and a Pro Elite Dealer, placing us in the top 3% of all dealers nationally and the ONLY dealer in the Annapolis/Chesapeake Bay area that has achieved this prestigious dealer rating.

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Tri-State Marine – Middle River

We are excited to introduce our Baltimore & Middle River area customers to local sales and service of Grady-White and Parker Offshore Boats though our exclusive partnership with Maryland Boat Sales! 

For more than 50 years, Tri-State Marine has been the Chesapeake Bay area’s exclusive retailer offering its customers the attention to detail and craftsmanship that you would expect from a best-in-class marine retailer and top-tier boat brands. Now, through our unique partnership with Maryland Boat Sales at Holly Neck Marina, we are offering Baltimore and Middle River area customers our full-line of Grady-White and Parker Offshore Boats – with all of the service and support that you’ve come to expect from both Tri-State Marine and Maryland Boat Sales.

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Tri-State Marine – Marina, Tackle and Gift Shop

On the water and just down the road from our primary location, is Tri-State Tackle & Gifts and Deale Marina. Here you will find a place for all of your fishing and crabbing needs. Whether you’re looking for a new PENN Squall 30 trolling rod combo and bait to reel in the local favorite, rockfish, or if you wish to pick-up a Bayou Classic stainless steel cooker set for your next crab feast, we have you covered with all of the best brands. We can even get you into the water on Deale’s only public boat ramp, get you fueled up at our fuel dock and if you need a place to keep your boat, you can do so at Deale Marina – all on site. It’s no wonder why Chesapeake Bay Magazine recently awarded us as the Best Tackle Shop in their 2020 Best of the Bay contest! Stop by to see why for yourself.

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From humble beginnings to the leading Chesapeake Bay marine dealer – the legacy continues.

Like so many other successful businesses that have stood the test of time, Tri-State Marine began with a simple idea, some determination and an old garage. From its humble beginnings assembling boat trailers in that old garage in Washington, D.C., it would have been hard to see what would result 56 years later. Nonetheless, Tom and Mary Beth Magenau, with 2 children in tow, built on their dream by moving their small business to Deale, MD in 1968 — chosen because it was the closest access point to the Chesapeake Bay from Washington, D.C. – with easy accessibility from Baltimore and Annapolis. Once there, they began assembling all of the components to build what would eventually become what Tri-State Marine is today — considered by many to the be leading marine sales and services dealer in the Chesapeake Bay Region. That is not to say that there weren't many trials and learning along the way — all of which gave us our unmistakable character and enviable marine knowledge. And, while Tri-State Marine has long been a leading dealer for Grady-White since 1974 , it is little known that we once also sold North American boats in the late 1960’s, Santana Sailboats in the 1970’s, Tracker Boats during the 1980’s and Carolina Skiffs in the 1990’s.

Today, we are very pleased to represent two of the best boat brands found anywhere, Grady-White and Parker Offshore — not to mention enduring relationships with Yamaha, Garmin, Fusion and EZ Loader Trailers. We’re even more proud of what we have been able to provide the DC, VA and MD communities throughout the years — no doubt a lifetime of fun and many cherished memories. While Tri-State Marine is under the leadership of its next generation of owners, our legacy persists with many of the same people that built Tri-State Marine to what it is today — many of whom will also carry the legacy forth for many years to come.  

A Brief Review of our Historical Highlights

Our Deale Showroom: The Largest Indoor Boat Showroom in the United States

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Grady-White Boats

Grady-White is one of the most renowned saltwater boat manufacturers in the world. Whether heading to your favorite fishing spot, or relaxing with friends and family for a day on the water, nothing quite compares to a Grady-White. With the highest level of customer satisfaction, industry leading safety, quality and reliability, superior design innovation and enviable overall performance, it’s no wonder why Grady-White has won the hearts of so many — including industry peers who have recognized Grady-White with countless awards. When combined with Grady-White’s unparalleled SeaV²® hull, ranked #1 in performance in each of the eight J.D. Power and Associates Marine Studies ever done, you arrive at something special — found only in a Grady-White.

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Parker Offshore

Parker Offshore boats are overbuilt and quality made, hand hewn to ensure that the boat building resume imprinted upon Parker since the late 1960s is forged across every detail of its boats. ​Common sense, time-tested design and a straightforward approach, combined with uncompromising dedication to the highest quality construction practices and craftsmanship, has earned the entire Parker Offshore line the reputation of strength, simplicity and seaworthiness. Every boat incorporates the highest quality construction techniques and products so that every Parker Offshore boat meets and exceeds the toughest standards in the industry – their own!

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Achilles Inflatables

Achilles has always had the reputation for manufacturing one of the highest quality inflatable boats in the world. Any inflatable dealer will tell you that the quality of the boat begins and ends with its fabric — its durability, toughness and overall reliability. And it’s no surprise that Achilles sets the standard for manufacturing the boat fabric, used to craft its own premium line of inflatable boats, but often sold to be used in the construction of other inflatable boat brands.

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Yamaha Outboards

As the Chesapeake Bay region’s top Yamaha authorized dealer with 5-Star Gold Certified status, you can trust in our team of factory certified service technicians, including an industry best master service technician, to deliver your boat new power to enjoy for many years to come. We exclusively sell, install and service Yamaha motors for a reason: For more than 30 years, Yamaha Outboards have delivered far more than superior power, performance and efficiency. Yamaha owners get something that can’t be measured in HP or RPM — with legendary Yamaha reliability, purpose-built from the ground up to withstand the rigors of offshore boating.

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Garmin Marine

Tri-State Marine offers expert sales, installation and training of the industry’s best marine electronics, exclusively from Garmin Marine. We pride ourselves on being the region's leading Garmin Marine dealer, and offer Garmin's full line of electronics. Not sure where to begin? Not to worry, our sales team will advise you on the perfect pairing of Garmin’s advanced marine electronics to your needs — Chartplotters, Fishfinders, Transducers, Sonar, Radar, Handhelds & Wearables and the industry’s best marine audio from Fusion Audio Entertainment. Our expert service technicians then ensure proper installation and testing — even high-level training to get you up and running quickly!

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Fusion Marine Audio

Tri-Stare Marine is proud to offer the full-line of FUSION True-Marine™ products, designed and engineered specifically for the marine environment. True-Marine™ products are subjected to rigorous environmental testing under harsh marine conditions to surpass industry guidelines of marine electronics. We offer and install the full-range of Fusion Marine productions — Stereo Units, Speakers, Subwoofers, Amplifiers and Remote Controls. Whether you’re a novice or an audiophile, you’ll find the perfect fit at Tri-State Marine where our advisors will guide you on your selection, while our service technicians will outfit your boat — ensuring proper installation, set-up and tuning.

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EZ Loader Trailers

Tri-State Marine offers expert sales, fitting and service of the industry’s best recreational boat trailers, exclusively from EZ Loader. For over 65 years, EZ Loader has led the industry in quality, performance, safety, reliability and innovations — continuing to outpace their competitors. All EZ Loader trailers are engineered to be fully adjustable to accommodate most vessels and are built using a heavy-duty frame, the highest quality components and marine-grade hardware with an industrial-grade finish. Simply put, they’re engineered to fit and built to last!

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You're in Good Hands

Our decades of success has relied on a simple, yet enduring formula - to recruit and retain the industry's best talent who "always do the right thing," by each other and our ever-loyal customers. We've been rewarded with a team, many whom have been with Tri-State Marine for more than 25 years, who are smart, dedicated, passionate about their work and take pride in a job well-done.

Meet The Team
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Work With The Best

We’re looking for some of the industry’s best to join our team of the industry’s best! We offer a culture of learning and growth — not to mention a fun place to work. If you’re interested in making a mark in a growing company and industry while enjoying the benefits that comes with it, take a look at our current open roles and be sure to apply.

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