When was Inogen founded?

Inogen was founded in 2001 and raised its 1st funding round 6 years after it was founded.

Where is Inogen located?

Inogen is headquartered in Goleta, United States. It is registered at Goleta, California.

How many employees does Inogen have?

As of May 31, 2026, the latest employee count at Inogen is 834.

Is Inogen a funded company?

Inogen is a funded company, having raised a total of $51.6M across 3 funding rounds to date. The company's 1st funding round was a $***** Series D round, raised on Feb 18, 2007.

When was the latest funding round of Inogen?

Inogen's latest funding was a $***** Series D round on Apr 12, 2012, with participation from 1 investor.

What is the annual revenue of Inogen?

Annual revenue of Inogen is between $100M and $500M as on Dec 31, 2025

Where does Inogen rank among its competitors?

Inogen ranks 1st amongst 5 active competitors, none of which are funded.

Who are the top competitors of Inogen?

Inogen's top competitors include VQ Biomedical, Roam Technologies and Solaire Initiative. Among them, VQ Biomedical secured the most recent funding round in July, 2024.

Inogen - 2026 Company Profile, Team, Funding, Competitors & Financials

Company Details

Provider of a portable oxygen concentrator for oxygen therapy. The device provides a 5-liter continuous flow of oxygen per minute. It removes nitrogen to deliver purified oxygen via nasal cannula.

Website: www.inogen.com/
Social
Phone Number: +1 **********
Registered Address: Goleta, California

Key Metrics

Founded Year

2001

Location

Goleta, United States

Stage

Public

Total Funding

$51.6M in 3 rounds

Latest Funding Round

Series D, Apr 12, 2012, $*****

Investors

Novo Holdings & 7 more

Ranked

1^st among 5 active competitors

Annual Revenue

$100M - $500M as on Dec 31, 2025

Employee Count

834 as on May 31, 2026

Similar Companies

VQ Biomedical & 4 more

Exit Details

Public

View Inogen's full profile

Inogen is associated with 2 legal entities given below:

Legal Entity Name	Date of Incorporation	Revenue	Latest Employee Count	Documents
INOGEN, INC CIN: 330989359 , United States, Active	Dec 31, 1999	-	706 (As on Dec 31, 2024)	-
INOGEN INC CIN: 1294133 , United States, Active	Nov 26, 2001	$100M - $500M (As on Dec 31, 2025)	-	-

Inogen got listed on Feb 14, 2014.

Click here to take a look at Inogen's IPO in detail

Inogen has raised a total funding of $51.6M over 3 rounds. Its first funding round was on Feb 18, 2007. Its latest funding round was a Series D round on Apr 12, 2012 for $*****. 1 investor participated in its latest round. Inogen has 8 institutional investors.

Here is the list of recent funding rounds of Inogen:

Date of Funding	Funding Amount	Round Name	Post-Money Valuation	Revenue Multiple	Lead Investors	Other Investors
Apr 12, 2012	4355672	Series D	6187575	6548375	8454928	5473647
Jul 12, 2010	8300109	Series D	5030265	1850188	6825903	2858207
Feb 18, 2007	1012238	Series D	8681656	2339150	Novo Holdings	Arboretum Ventures & 3 more

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View details of Inogen's funding rounds and investors

The founders of Inogen are Brenton Taylor and Byron Myers.

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

Brenton Taylor: Vice President of Inogen.
Byron Myers: Former Co-Founder of Inogen.

View details of Inogen's Founder profiles and Board Members

Inogen's employee count trend

Inogen has 834 employees as of May 26. Here is Inogen's employee count trend over the years:

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Top competitors of Inogen include VQ Biomedical, Roam Technologies and Solaire Initiative. Here is the list of Top 10 competitors of Inogen, ranked by Tracxn score:

Rank	Company Details	Short Description	Total Funding	Investors	Tracxn Score
1st	Inogen 2001, Goleta (United States), Public	Provider of a portable oxygen concentrator for oxygen therapy	$51.6M	Western Technology Investment, Versant Ventures ... & 6 others	63/100
2nd	VQ Biomedical 2023, Durham (United States), Funding Raised	Developer of intravascular oxygenation catheter for respiratory failure in hospitals	-	-	33/100
3rd	Roam Technologies 2014, Sydney (Australia), Unfunded	Provider of non invasive oxygen concentrator	-	-	26/100
4th	Solaire Initiative 2019, Bhubaneswar (India), Unfunded	Provider of oxygen-making devices developed by a group of scientists, medics, and engineers from leading universities worldwide	-	-	25/100
5th	VitalAire 1986, Mississauga (Canada), Funding Raised	Provider of home apnea therapy service	-	Medu Capital	24/100
6th	ManBetX 2018, Taiwan, Deadpooled	Provides a significant benefits over current home oxygen therapy technologies	-	MassChallenge	14/100