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About ACI Boats’ Aluminum Catamarans & Monohulls


montague fishing charter aboveYou imagine it. We build it.

Have you been designing the perfect boat in your head? Sketching on napkins and envelopes? Perhaps it’s time to realize your dream and actually put your boat on the water. Bring us your design or work with Cory Armstrong and our talented engineers to develop your ideas into the plans for a boat that is tailored to meet your personal or business needs.


Nobody knows what you want in your boat like you do, and we respect that.

pacific northwest seattle monohull charter cruiser fishing aci boats custom aluminumTruth be told, we couldn’t build your boat without you. Let’s work together and combine your ideas with our skills and experience in not only the aesthetics, but also in fabrication, systems design, electronics, propulsion, finishes and regulatory requirements.

You Can Choose a Proven Model

Clients who choose a boat from our existing catamarans or monohulls are able to enjoy the amenities of a custom boat while saving in design and construction costs. Choose your own finishes and details while enjoying confidence in the proven performance of existing boats. This flexibility allows for each boat to be unique, although the starting design is an existing model.1536 cabin interior

Boating enthusiasts who do not have the time and capacity to be directly involved in a fully custom project will find that our proven models are an easier solution at a lower price. In addition, they’re available for a faster delivery while still offering the opportunity to create very personalized vessels.


montague fishing charter 4ACI Boat’s aluminum monohulls are as rugged as the waters they’re designed to conquer. Built for both the recreation and commercial markets, the monohulls are available in lengths from 29′ to 43′ and include either our walk around cabin or our full width cabin with or without a cuddy.

Monohull Portfolio



Catamaran enthusiasts love ACI Boats’ high-speed, ocean class catamarans. Their long and narrow hulls offer increased efficiency and lower fuel costs. Recognized for their stability, catamarans have good use of below-deck hull space for berthing and other amenities.

Catamaran Portfolio


Eagle Eyes croppedACI Boats builds foil assist catamarans and enjoys a close partnership with FOIL ASSIST CATS. Efficiency, sea-keeping, low wake wash and emissions make up the core values of the technology. Turnkey solutions require no special skills on the part of the operator.

Foil Assist Portfolio

Click on links below for more information about types of boats we build:

Talk to Us!
ACI BOATS, a division of Armstrong Consolidated, LLC, is a Pacific Northwest boat manufacturing company located near Seattle. Surrounded by the Salish Sea and Puget Sound, our facilities sit on Port Townsend Bay on the Olympic Peninsula of Washington state. Founded by CORY ARMSTRONG, ACI Boats builds high quality aluminum marine vessels – catamarans and monohulls – perfect for commercial fishing, charter fishing, family cruising, power boating, sport fishing, patrol & law enforcement, whale watching, dive boats, survey boats and passenger vessels. Our boats are ocean class and all welded – notable for their head-turning designs, as well as their safety, superior strength, fuel efficiency and economy, easy maintenance, durability, and renewable, recyclable materials.

You imagine it. We build it.

Contact us today to discuss your boat building dreams!