Seakeeper

What Seakeeper does

Seakeeper is a privately held marine technology company headquartered in Leesport, Pennsylvania, with additional offices in Fort Myers, Florida; Lavagna, Italy (European headquarters); and Bournemouth, United Kingdom (engineering facility). Founded in 2002 to research, develop, and market motion control devices for boats under 70 meters, the company is wholly owned by industrial conglomerate Madison Industries, which became its partner in April 2018. Seakeeper serves recreational boaters, commercial marine operators, and defense customers across North America, Europe, the Middle East, and Asia-Pacific through a global authorized dealer network and OEM partnerships with boat builders.

Seakeeper's product platform centers on two complementary motion control technologies. The core Seakeeper line consists of eleven gyroscopic stabilizer models (Seakeeper 1 through Seakeeper 40) that use internally mounted, computer-controlled spinning rotors to counteract wave-induced roll on vessels from approximately 23 to 110 feet, priced from $17,400 to $365,400 per unit. The Seakeeper Ride line extends this capability to underway stabilization via transom-mounted vessel attitude control systems (models 450 through 900-1500), which eliminate up to 70% of underway pitch and roll. In March 2026, Seakeeper unified the two product lines through a software integration delivering approximately 20% additional performance. Specialized variants address catamarans and pontoons, and the company holds a 2019 Edison Award for innovation in marine stabilization.

The business operates a hybrid hardware distribution model: one-time capital equipment sales flow through authorized dealers (who handle installation and after-sale support), OEM factory integrations with boat manufacturers, direct e-commerce via Seakeeper.com, and a refit/retrofit channel for existing vessels. Revenue is generated primarily through unit hardware sales with ancillary extended warranty tiers (Platinum, Gold, Silver), remanufactured products, and financing. Supporting the commercial model is a Pro Program for charter and ferry operators and an expanding dealer training infrastructure, most recently with a new Italian facility opened in September 2024.

Name

Seakeeper

Legal name

Seakeeper Inc.

Website

https://seakeeper.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

51–100 employees

Short description

Seakeeper designs and manufactures gyroscopic stabilizers and transom-mounted vessel attitude control systems that reduce roll and pitch for recreational, commercial, and defense marine vessels, selling globally through dealers and OEM boat builder partnerships.

Ownership category

akta.pro rank

Product category

Marine Stabilization Equipment

NAICS

Ship and Boat Building (33661)

SIC

Ship & Boat Building & Repairing (3730)

akta.pro primary industry

Semi-Custom & Series Production Yacht Manufacturing (IMAJAEAM)

akta.pro secondary industry

Marine Generators, Alternators & Power Electronics (Gen-sets, VFDs, converters) (IMAJAHAI)

Keywords

• Gyroscopic marine stabilizers
• Vessel attitude control
• Boat roll reduction
• Marine motion control
• Underway pitch control

Headquarters

HQ city

Leesport

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Technology or R&D, Marketing or Sales, Personnel, Operations, Infrastructure

Revenue model

1. Hardware Sales: Seakeeper generates primary revenue from the sale of gyroscopic stabilizer units. Products range from compact residential models to large commercial systems, with pricing from approximately $17,400 to $365,400 per unit. This represents a one-time capital purchase model rather than a recurring revenue structure.
2. Dealer Network Sales: Revenue flows through an authorized dealer network that handles sales, installation, and after-sale support to end customers. Dealers purchase units from Seakeeper and resell to recreational and commercial boaters.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

Seakeeper designs, manufactures, and sells proprietary gyroscopic stabilization systems and Vessel Attitude Control Systems (VACS) for marine vessels under 70 meters. The Seakeeper gyro line (11 models, Seakeeper 1 to Seakeeper 40) uses internally mounted, computer-controlled spinning flywheels to eliminate boat roll at rest, while the Seakeeper Ride line provides transom-mounted underway attitude control that eliminates up to 70% of pitch and roll. Products are sold through authorized dealers, OEM boat builder partnerships, and direct-to-consumer channels, with per-unit pricing from approximately $17,400 to $365,400.

Product overview

Seakeeper offers two complementary marine motion control product lines: (1) Seakeeper gyroscopic stabilizers - a family of 11 models (Seakeeper 1 through Seakeeper 40) using internal spinning flywheels to provide roll stabilization at rest and underway, sized for boats from 23 feet to 110 feet; and (2) Seakeeper Ride vessel attitude control systems - transom-mounted trim tab replacements that eliminate up to 70% of underway pitch and roll, available in five models (450, 525, 600, 750, 900-1500) plus catamaran and pontoon variants for boats up to 55 feet. The two product lines can be integrated via software into a unified full-vessel stabilization system. Seakeeper also offers extended warranties (Platinum, Gold, Silver), remanufactured products, financing options, and operates a Pro Program for professional charter and ferry operators.

Differentiator

Problem solved

Functional benefit

Brands

• Seakeeper: Gyroscopic stabilizers for boats at rest, the company's original product line covering models from Seakeeper 1 to Seakeeper 40.
• Seakeeper Ride

Products and services

• Seakeeper 1 Smallest gyroscopic stabilizer in the Seakeeper lineup, designed for boats approximately 23-30 feet with up to 5.5 tons displacement; reduces roll at rest using a computer-controlled internal spinning flywheel.
• Seakeeper 2 Compact gyroscopic stabilizer for boats approximately 30-36 feet, supporting vessels up to 7.5 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 3 Mid-size gyroscopic stabilizer for boats approximately 35-41 feet, supporting vessels up to 10.5 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 4 Performance gyroscopic stabilizer for boats approximately 38-44 feet, supporting vessels up to 15 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 4.5 Extended-range gyroscopic stabilizer for boats approximately 40-46 feet, supporting vessels up to 18 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 6 Large gyroscopic stabilizer for boats approximately 44-52 feet, supporting vessels up to 24 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 10 Extra-large gyroscopic stabilizer for boats approximately 50-60 feet, supporting vessels up to 36 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 14 Premium gyroscopic stabilizer for boats approximately 55-68 feet, supporting vessels up to 45 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 18 Maximum-size gyroscopic stabilizer for boats approximately 60-75 feet, supporting vessels up to 56 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 26 Commercial-scale gyroscopic stabilizer for boats approximately 70-85 feet, supporting vessels up to 75 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 40 Largest gyroscopic stabilizer for boats approximately 85-110 feet, supporting vessels up to 115 tons displacement; reduces roll at rest via internal spinning flywheel.
• Seakeeper 10.5 Gyroscopic stabilizer positioned between Seakeeper 10 and Seakeeper 14 in capacity, designed for boats in the 50-68 ft range; reduces roll at rest via internal spinning flywheel.
• Seakeeper Ride 450 Transom-mounted underway Vessel Attitude Control System for boats up to 26 feet, providing automatic pitch and roll stabilization during operation.
• Seakeeper Ride 525 Transom-mounted underway Vessel Attitude Control System for boats 27-30 feet, providing automatic pitch and roll stabilization during operation.
• Seakeeper Ride 600 Transom-mounted underway Vessel Attitude Control System for boats 31-36 feet, providing automatic pitch and roll stabilization during operation.
• Seakeeper Ride 750 Transom-mounted underway Vessel Attitude Control System for boats 37-42 feet, providing automatic pitch and roll stabilization during operation.
• Seakeeper Ride 900-1500 Premium transom-mounted underway Vessel Attitude Control System for boats 43-55 feet, eliminating up to 70% of underway pitch and roll.
• Seakeeper Ride for Catamarans Specialized Seakeeper Ride configuration for catamaran hulls, providing underway pitch and roll stabilization tailored to twin-hull dynamics.
• Seakeeper Ride for Pontoons Specialized Seakeeper Ride configuration for pontoon boats, providing underway pitch and roll stabilization tailored to pontoon hull dynamics.
• Seakeeper and Seakeeper Ride Unified System Software integration combining Seakeeper gyroscopic stabilizers with Seakeeper Ride Vessel Attitude Control into a unified system, improving combined stabilization performance by approximately 20% and delivered as a free software update.

Quantifiable outcome

• Approximately 20% improvement in onboard comfort when Seakeeper Ride is integrated with gyro stabilizer systems

Named customers4 records

Segments3 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• BlackSea TechnologiescoreTechnology or IntegrationBlackSea Technologies utilizes Seakeeper gyro stabilization systems in their Comet Unmanned Surface Vessel (USV). Seakeeper provides the gyroscopic stabilization technology as a systems provider for this defense-grade autonomous surface vessel platform. This partnership demonstrates Seakeeper's technology application in mission-critical military and defense maritime operations.

Scale indicators2 records

Recent moves8 records

Expansion highlights6 records

Broad incumbents

• Volvo Penta: Marine propulsion division offering IPS, sterndrives, and integrated boat control systems; competes more broadly with Seakeeper at the OEM level for integration into new boat packages.
• Raymarine: Marine electronics supplier (MFDs, radar, autopilots) distributed through recreational marine channels; relevant as a broader incumbent in the integrated electronics suite on stabilized vessels.
• Brunswick Corporation: Marine conglomerate owning Mercury Marine and multiple boat brands; sells adjacent propulsion and boat systems and could incorporate competing stabilization technologies into its OEM portfolio.
• Garmin: Dominant marine electronics brand (chartplotters, autopilots, Fantom radar) sold through the same dealer network as Seakeeper, with overlapping customer base and potential future motion-control adjacencies.

Direct peers

• Naiad Dynamics: US manufacturer of fin stabilizers and ride control systems for recreational and commercial vessels, offering an alternative stabilization architecture to Seakeeper's gyroscopes.
• Zipwake: Swedish maker of dynamic trim control systems (interceptor-based) that compete directly with Seakeeper Ride for underway vessel attitude control on recreational powerboats.
• Mitsubishi (Anti-Rolling Gyro): Mitsubishi Heavy Industries' Anti-Rolling Gyro (ARG) directly competes with Seakeeper's gyroscopic stabilizer line, primarily in the larger commercial and superyacht segments.
• Humphree: Swedish interceptor/trim and stabilization systems provider offering underway motion control products that overlap with Seakeeper Ride in target market and channel.
• CMC Marine: Italian manufacturer of marine stabilization systems (both fins and electric/hydraulic actuators) serving yachts and commercial vessels; competes with Seakeeper in stabilization for European-built boats.
• Sleipner (Side-Power): Norwegian manufacturer of bow/stern thrusters and stabilization-related equipment sold through the same marine dealer channels as Seakeeper, addressing overlapping recreational and commercial customers.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@seakeeperinc
• Facebookfacebook.com/136265226446925
• LinkedInlinkedin.com/company/seakeeper-inc-
• Instagraminstagram.com/seakeeper
• Xx.com/Seakeeper

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Seakeeper