Flux Marine: 10 Key Things You Must Know

Overview

Flux Marine is a pioneering company specializing in the development and manufacture of fully electric marine propulsion systems. Founded in 2017 and headquartered in Bristol, Rhode Island, Flux Marine is revolutionizing the boating industry by offering high-performance, sustainable alternatives to traditional combustion outboard motors. Their groundbreaking electric outboards deliver powerful, quiet, and maintenance-free boating experiences, addressing environmental concerns while enhancing operational efficiency. As more boat builders seek to electrify their products, Flux Marine collaborates with industry leaders like Scout Boats, Highfield, and Zodiac, helping to accelerate the transition to clean, electric-powered vessels. This article explores ten key facets of Flux Marine's technology, business approach, and impact on marine electrification.

1. Founded with a Vision to Electrify Boating

Flux Marine was established in 2017 by a team of boating enthusiasts and innovative engineers who sought to redefine marine propulsion by focusing on sustainability and performance. The company’s mission centers on creating electric propulsion systems from the ground up, without relying on legacy combustion engine designs. This clean-sheet approach enables them to optimize for power, efficiency, and ease of use, targeting a future where boating is quieter, cleaner, and more enjoyable for everyone.

2. Groundbreaking Electric Outboard Motors

Flux Marine designs electric outboards that deliver continuous power outputs up to 115 horsepower, capable of pushing boats to speeds nearing 35 knots. Their flagship FM115 model, fully commercialized in recent years, is the only high-voltage electric outboard in North America built entirely from an original design. These outboards leverage instant torque delivery typical of electric motors, providing rapid acceleration and smooth throttle response previously unseen in electric marine propulsion.

3. Innovative Design Features

One of Flux Marine’s standout innovations is its closed-loop cooling system, which uses a glycol coolant mixture to protect the motor’s internal electronics while eliminating the need for users to flush salt or freshwater through the motor after use. The outboards also integrate their charging ports on top of the motor housing, simplifying installation and eliminating drilling additional holes in the boat. Combined with advanced belt-drive and lower unit engineering, these features reduce maintenance requirements and extend motor longevity.

4. Commitment to Sustainability and Quiet Operation

Flux Marine's electric propulsion technology significantly reduces emissions and noise pollution associated with traditional gas outboards. The near-silent operation creates a more serene boating experience, allowing operators and passengers to enjoy nature without disruptive engine noise. This quietness also benefits marine wildlife by minimizing acoustic disturbances in sensitive aquatic environments.

5. Industry Partnerships and Boat Packages

Rather than manufacturing complete boats, Flux Marine collaborates with established boat builders to outfit their vessels with electric propulsion systems. Their partners include well-known industry names such as Scout Boats, Highfield, Flagship Pontoons, Hyfoil, and Zodiac. These collaborations result in fully integrated electric boat packages that offer consumers turnkey electric boating options, promoting wider adoption by leveraging the expertise of leading hull manufacturers.

6. Recent $15 Million Funding Round to Scale Production

In November 2025, Flux Marine announced a $15 million capital infusion led by existing investors, customers, and new backer Collide Capital. This funding supports the company’s transition from fleet testing to volume manufacturing, enabling them to expand production capacity and meet growing demand. With total funding surpassing $30 million since 2020, Flux Marine is investing heavily in both production infrastructure and research and development.

7. Advanced Fleet Telematics Platform

Flux Marine has developed an in-house Fleet Telematics Platform that connects every active propulsion system via cellular networks in real-time. This platform allows for continuous monitoring of system health, remote diagnostics, over-the-air software updates, and data collection on operational performance. Future plans include AI-powered predictive maintenance and route optimization, enhancing reliability and user convenience across diverse marine applications.

8. Diverse Market Applications

Flux Marine-powered boats serve a broad spectrum of uses, from recreational day cruising and inshore fishing to more specialized tasks like aquaculture workboats in Maine and twin-outboard tenders for superyachts in the British Virgin Islands. The versatility and scalability of their modular powertrain architecture allow integration with various hull types and sizes, making electric propulsion accessible to many boaters and commercial operators.

9. In-House Vertical Integration of Technology

Flux Marine maintains full control over its technology stack by developing key components in-house, including power electronics, battery packs, battery management systems, cooling modules, and proprietary software. This vertical integration strategy helps optimize performance, reduce costs, and secure supply chains amid global disruptions. It also allows swift innovation cycles as the company can rapidly incorporate user feedback and advance new functionalities.

10. Positioned as a Leader in North American Marine Electrification

Over the past two years, Flux Marine has delivered more high-voltage electric outboards in North America than any other company, solidifying its position at the forefront of the industry’s electrification movement. As the marine sector increasingly prioritizes sustainability and efficiency, Flux Marine’s technology and partnerships place it well for continued growth. The company actively supports efforts to preserve waterways for future generations while providing exhilarating boating experiences today.

Conclusion

Flux Marine exemplifies the fusion of innovation, sustainability, and performance in the evolving marine industry. From its visionary founding to its cutting-edge electric outboards and strategic partnerships, the company is shaping the future of boating by replacing noisy, polluting combustion engines with quiet, clean, and powerful electric propulsion. As Flux scales production and pushes technological boundaries, it invites boaters worldwide to experience the joys of sustainable navigation. Will electric propulsion become the new normal across all boating activities? Given Flux Marine's momentum, the answer appears nearer than ever.