# Fleetzero

> Fleetzero builds marine batteries, hybrid and electric propulsion systems, and autonomy technology for commercial and defense vessel operators. Its approach combines modular energy storage with vessel integration, drawing on its founders’ experience as marine engineers.

- **Founded:** 2021
- **Headquarters:** Houston, United States
- **Founders:** Steven Henderson (Co-founder and CEO), Mike Carter (Co-founder and COO)
- **Products:** Leviathan Battery Energy Storage System, Hybrid and electric propulsion integration, Marine Battery Container, Kraken DC-hub, Battery barge
- **Notable:** Y Combinator Winter 2022 participant., Won the 2022 Harvard Business School New Venture Competition Alumni Track and US$75,000 grand prize., Company dates its first vessel on the water to 2023.

## Products & services

- **Leviathan Battery Energy Storage System** — Modular marine energy storage for hybrid and all-electric propulsion; company-listed configurations start at 200 kWh.
- **Hybrid and electric propulsion integration** — Propulsion systems for newbuild and existing commercial vessels.
- **Marine Battery Container** — Containerized marine energy storage; the current website advertises 3.4 MWh.
- **Kraken DC-hub** — Marine power system listed in the June 2026 autonomy launch announcement.
- **Battery barge** — Website-listed mobile charging concept with 55 MWh of advertised energy storage and expandable capacity.
- **OctoDrive** — Autonomy software integrating sensors, cameras and autonomous route planning for commercial and defense vessels.
- **OctoPod** — Fixed tele-operated command center for remote vessel operation.
- **OctoBox** — Portable autonomy integration and command package for existing vessels.

## Achievements

- Y Combinator Winter 2022 participant.
- Won the 2022 Harvard Business School New Venture Competition Alumni Track and US$75,000 grand prize.
- Company dates its first vessel on the water to 2023.
- Reports successful modular propulsion, autonomy and camera-vision tests aboard Pacific Joule.
- Announced US$43 million Series A and Houston manufacturing/R&D headquarters in January 2026.
- Commercial autonomy suite announced June 16, 2026.

## Latest updates

- **2026-06** — June 16: commercial launch of OctoDrive, OctoPod and OctoBox; company reports demonstrations to commercial and defense customers.
- **2026-06** — June 2: autonomous-vessel collaboration announced with Thoma-Sea and Glosten.
- **2026-01** — US$43 million Series A and Houston headquarters announced, with 300 MWh/year initial manufacturing capacity and a five-year target of 3 GWh/year.

## Links

- Website: https://www.fleetzero.com/
- LinkedIn: https://www.linkedin.com/company/fleetzero
- YouTube: https://www.youtube.com/@Fleetzero
- Instagram: https://www.instagram.com/fleetzerohq/

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Profile page: https://yespress.io/fleetzero
Published by YesPress — https://yespress.io
Last updated: 2026-10-05