H55

Private

SwitzerlandEnergy & Sustainabilityhttps://www.h55.ch

Last Round

Series C

Extension

Jul 24, 2024

Total Funding Raised

$96.46M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

H55 is an aerospace company specializing in electric propulsion and battery management technology aimed at transforming air transportation into a clean aviation revolution.

Sector

Energy & Sustainability

Verticals

Aviation & Drones, Electric Vehicles, Energy Storage

Business Model

B2B

Customer Profile

Hardware Sales, Services & Consulting

AI Layer

Non-AI

Keywords

electric propulsion systemEPSelectric aviationaircraft battery systemenergy storage systemESSelectric aircraftaviation certificationelectric training aircraftEASA certificationelectric power unitEPUaircraft retrofitelectric aircraft conversionsustainable aviationgreen aviationeVTOL propulsionhybrid-electric aircraftsecond-life batteries

Historical Pricing

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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H55 Comps

Public and private peers based on sector, stage, and business model.

H55 comps — public and private peers by sector, stage, and business model
Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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H55 Funding Rounds

Historical fundraising activity

Data table
Round	Date	Amount Raised	Valuation	Investors	Sources
Series C Extension	Jul 24, 2024
Series C	Sep 21, 2023
Series B	Oct 11, 2022
Series A	Dec 3, 2020
Grant	Jun 30, 2019
Seed	Feb 20, 2018

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Key People

Founding team and executive leadership

Sebastien Aymon-Demont

Co Founder CTO

Founding Team

H55 Investors

Notable investors and investment history

H55 investors
Investor	Rounds
Investissement Québec	Series C Extension
+ND Capital	Series A, Series C, Seed
Tippet Venture Partners	Series A, Series C
ACE & Company	Series A
ACE Ventures	Series A
EIC Fund	Grant

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Market signals

Structured signals derived from secondary market and firmographic data.

Mar 18, 2026
Continued progress on 200 kWh Energy Storage System for RTX Hybrid-Electric Flight Demonstrator.
Jan 1, 2026
BRM electric training aircraft now available in North America.

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H55 Filings

SEC and related filings with document metadata.

Data table
Typed	Date	Amount Offered	Amount Sold	Filling	Pages	Download
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H55 Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about H55's valuation, stock price, and market status.

Firmographic Details

HeadquartersSwitzerland

Employee Range150

Year Founded2017

Last FundingJul 24, 2024

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