When was H2scan founded?

H2scan was founded in 2002 and raised its 1st funding round 2 years after it was founded.

Where is H2scan located?

H2scan is headquartered in Santa Clarita, United States. It is registered at Valencia, California.

How many employees does H2scan have?

As of Mar 31, 2026, the latest employee count at H2scan is 88.

Is H2scan a funded company?

H2scan is a funded company, having raised a total of $100M across 9 funding rounds to date. The company's 1st funding round was a $***** Series B round, raised on Dec 05, 2004.

When was the latest funding round of H2scan?

H2scan's latest funding was a $***** Series E round on Feb 18, 2022, with participation from 2 investors.

Where does H2scan rank among its competitors?

H2scan ranks 1st amongst 172 active competitors, of which 25 are funded. It stands 1st in terms of total funding among its competitors. The most recent competitor to raise funding was Multi Nano Sense, which secured $2.88M in Aug, 2025.

Who are the top competitors of H2scan?

H2scan's top competitors include Aroma Bit, Insplorion and C2Sense. Among them, Multi Nano Sense secured the most recent funding round in August, 2025.

H2scan - 2026 Company Profile, Team, Funding & Competitors

H2scan is a series E company based in Santa Clarita (United States), founded in 2002 by Dennis Reid. It operates as a Developer of hydrogen gas leak detection sensors. H2scan has raised $100M in funding from investors like Tech Coast Angels, Pasadena Angels and Chrysalix Venture Capital. The company has 172 active competitors, including 25 funded and 26 that have exited. Its top competitors include companies like Aroma Bit, Insplorion and C2Sense.

Company Details

Developer of hydrogen gas leak detection sensors. Its products include gas analyzers and leak detectors using patented solid-state core hydrogen sensor technology, a sensor product for real-time hydrogen gas analysis in process gas streams, and handheld devices for hydrogen leak detection with concentration. It also provides a thin-film hydrogen sensor for high-temperature and marine applications. It caters to petroleum, power grid transformer, nuclear power plant, and semiconductor industries.

Website: h2scan.com
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Registered Address: Valencia, California

Key Metrics

Founded Year

2002

Location

Santa Clarita, United States

Stage

Series E

Total Funding

$100M in 9 rounds

Latest Funding Round

Series E, Feb 18, 2022, $*****

Investors

Tech Coast Angels & 8 more

Ranked

1^st among 172 active competitors

Employee Count

88 as on Mar 31, 2026

Similar Companies

Aroma Bit & 195 more

View H2scan's full profile

H2scan is associated with 1 legal entity given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
H2scan Corporation CIN: 201562045 , United States, Active	Dec 31, 1999	-	72 (As on Dec 31, 2024)	-

H2scan has raised a total funding of $100M over 9 rounds. Its first funding round was on Dec 05, 2004. Its latest funding round was a Series E round on Feb 18, 2022 for $*****. 2 investors participated in its latest round. H2scan has 9 institutional investors.

Here is the list of recent funding rounds of H2scan:

Filter this list

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Feb 18, 2022	8960817	Series E	9239075	2378325	9060990	5280347
Jan 15, 2020	3395843	Venture Debt	3207996	5586206	1416694	1447314
Jan 15, 2020	1047777	Series E	8582146	9820722	Energy Growth Momentum	7352609

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View details of H2scan's funding rounds and investors

The founders of H2scan is Dennis Reid.

Here are the details of H2scan's key team members:

Dennis Reid: Founder and CEO of H2scan.
Contact Info: 1 email address

View details of H2scan's Founder profiles and Board Members

H2scan's employee count trend

H2scan has 88 employees as of Mar 26. Here is H2scan's employee count trend over the years:

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Top competitors of H2scan include Aroma Bit, Insplorion and C2Sense. Here is the list of Top 10 competitors of H2scan, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	H2scan 2002, Santa Clarita (United States), Series E	Developer of hydrogen gas leak detection sensors	$100M	Chrysalix Venture Capital, RezVen Partners ... & 7 others	58/100
2nd	Aroma Bit 2013, Tokyo (Japan), Series A	Developer of odor imaging sensors	$6.76M	Sony Innovation Fund, Kyocera & 7 others	56/100
3rd	Insplorion 2010, Gothenburg (Sweden), Public	Developer of sensors for hydrogen infrastructure, production, and application	$410K	AP Ventures, Formue Nord & 4 others	53/100
4th	C2Sense 2013, Cambridge (United States), Series B	Provider of gas sensing technology across the food value chain	$11.9M	Engine Ventures, Propel(x) & 13 others	53/100
5th	Nevada Nano 2004, Sparks (United States), Series C	Innovating gas sensing solutions for safety, climate, and industrial applications	$53.5M	Honeywell, Emerson & 3 others	48/100
6th	NGK SPARK PLUG 1936, Nagoya (Japan), Public	Manufacturer of the gas sensors	-	-	48/100
7th	Sense Air 1989, Delsbo (Sweden), Public	Develops sensing devices for CO2 sensing and control	-	Vinnova, Spiltan & 3 others	47/100
8th	PreSens Precision Sensing 1997, Regensburg (Germany), Funding Raised	OEM for Optical sensor technology to measure Oxygen, pH, and Carbon dioxide	-	Skagerak Maturo, Europa	44/100
9th	Multi Nano Sense 2017, Nagpur (India), Seed	Developer of technology and manufacturing sensors	$3.37M	Himalaya Finance and Investment, Gritelements ... & 11 others	44/100
10th	Tunable 2015, Oslo (Norway), Series A	Developer of gas analysis technology for various industrial applications	$10.2M	TRUMPF, Wilhelmsen & 3 others	42/100