/Companies

Fleetzero

YC W22

Houston, US · Founded 2021 · Delaware corporation · 40 employees · 17 known investors

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Fleetzero designs and retrofits commercial vessels with battery-electric propulsion systems to decarbonize ocean shipping. The company builds modular, scalable electrification technology for ship operators and maritime fleets.

Founders & leadership· Y Combinator alumni (W22)

Fleetzero was founded in 2021 by Steven Henderson, Mike Carter, and Steven H.

SHSteven Henderson
Steven HendersonCo-FounderSteven Henderson studied marine engineering at the U.S. Merchant Marine Academy and business at Harvard Business School. He has held operational roles managing cargo ships, a hospital ship, and major offshore facilities in the Gulf of Mexico, and served as a Strategic Sealift Officer in the U.S. Navy Reserve.
MCMike Carter
Mike CarterFounderMichael Carter holds a BS in Marine Engineering Systems from the US Merchant Marine Academy and an MBA from Rice University. He has worked in enterprise sales and brings expertise in marine engineering, ship operations, energy, and shipping, with prior service as an officer in the US Navy Reserve.
SH
Steven HFounder
SH
Steven Henderson Michael CarterFounder
MB
Maggie BelsheMarketing
TS
Thomas SmillieVice President Engineeringformer

Investors · 17

Obvious Ventures✓ confirmed by FleetzeroSan Francisco · $250K – $6M

How we know: Obvious Ventures's portfolio page · a partner's Signal profile · funding news · prnewswire.com · Y Combinator's founder network · Not right? Tell us

APOLLO PROJECTSreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Benson CapitalreportedNew Orleans

How we know: energycapitalhtx.com · Y Combinator's founder network · Not right? Tell us

Firebrand VenturesreportedBoulder · $500K – $1M

How we know: Y Combinator's founder network · Not right? Tell us

FlexportreportedSan Francisco

How we know: Y Combinator's founder network · Not right? Tell us

Memorial Capital InvestmentsreportedKaty

How we know: Y Combinator's founder network · Not right? Tell us

Red Rooster VenturesreportedSan Mateo

How we know: Y Combinator's founder network · Not right? Tell us

Refactor CapitalreportedBurlingame · $1M – $2M

How we know: Y Combinator's founder network · Not right? Tell us

Unpopular VenturesreportedMiami · $100K – $500K

How we know: Y Combinator's founder network · Not right? Tell us

Funding

SEC filings, press & company announcements

$59.7M disclosed across 3 rounds · 2021–2026

▶$225KraisedJun 2022 · 4 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Steven HendersonExecutive Officer, Director
  • Michael CarterDirector
Offering amount
$225K
Amount sold
$225K
First sale
Sep 2021
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗
▶$16.5MraisedJun 2022 · 44 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Steven HendersonExecutive Officer, Director
  • Michael CarterDirector
Offering amount
$16.5M
Amount sold
$16.5M
First sale
Jun 2022
Incorporated
Corporation, Delaware, 2021
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Related companies · 5

Companies working in the same space as Fleetzero.

Legal entities · 1

corporate structure
fleetzero Inc.

In the news

Frequently asked questions

What does Fleetzero do?
Fleetzero designs and retrofits commercial vessels with battery-electric propulsion systems to decarbonize ocean shipping. The company builds modular, scalable electrification technology for ship operators and maritime fleets.
Who founded Fleetzero?
Fleetzero was founded by Steven Henderson, Mike Carter, Steven H in 2021.
Who are Fleetzero's investors?
Fleetzero's investors include Obvious Ventures, Breakthrough Energy Ventures, Cantos Ventures, Darco Capital, Maersk Growth, Pioneer, Y Combinator, 8090 Industries and 9 more.
How much funding has Fleetzero raised?
Fleetzero has disclosed $59.7M raised across 3 rounds.
Where is Fleetzero headquartered?
Fleetzero is headquartered in Houston, US.