About Inogen
Inogen is a publicly listed company based in Goleta (United States) founded in 2001. Portable oxygen concentrators are supplied for respiratory therapy needs. Inogen has raised $51.65 million across 3 funding rounds from investors including Novo Holdings, Arboretum Ventures and Versant Ventures. The company has 766 employees. Inogen has completed 1 acquisition, including PhysioAssist. Its website inogen.com draws about 160 thousand monthly visits. Its focus areas include Life Sciences, Pulmonology, Medical Devices and Therapeutic Devices. Its competitors include Breathe Technologies, Liberate Medical and Chart SeQual; 2 of its 3 listed competitors have raised funding.
Company details
Inogen was founded in 2001 in Goleta, United States, within the medical devices sector. Portable oxygen concentrators are designed and distributed to support oxygen therapy for patients with respiratory conditions. Ambient air is processed to extract nitrogen, yielding purified oxygen delivered continuously at up to 5 liters per minute through a nasal cannula. Operations focus on portable solutions for home and mobile use across the United States.
- Headquarters Goleta, United States
- Employees 766
- Stage Public
- SectorsHealthcare
- Website category Health
- Phone•••• ••••
- Website inogen.com
- Social LinkedIn X Facebook YouTube
- Legal Name Inogen, Inc
- Annual Revenue$348.67 M (USD)3.86as on Dec 31, 2025
- Net Profit-$22.75 M (USD)36.62as on Dec 31, 2025
- EBITDA-$9.55 M (USD)46.14as on Dec 31, 2025
- Total Equity Funding$51.65M (USD)
in 3 rounds
- Latest Funding Round$20M (USD), Series D
Apr 2012
- InvestorsNovo Holdings
& 4 more
- Employee Count766
- Investments & Acquisitions
Apps and channels of Inogen
its YouTube channel Inogen has 3.95K subscribers and 29 videos.
Videos from Inogen
The most watched videos on Inogen's YouTube channel, Inogen (3.95K subscribers). Click a video to play it here.
More on Inogen.
Funding Insights of Inogen
Inogen has successfully raised a total of $51.65M across 3 strategic funding rounds. The most recent funding activity was a Series D round of $20 million completed in April 2012. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $51.65M
- Total Rounds 3
- Last Round Series D — $20M
- First Round $22M
(Feb 2007)
- Investors Count 5
All 3 funding rounds of Inogen with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Apr 2012 | $20M | Series D | – | Novo Holdings | – |
| Jul 2010 | $9.65M | Series D | – | – | – |
| Feb 2007 | $22M | Series D | – | Novo Holdings |
5 investors in total: 5 institutional.
Investors in Inogen
Inogen has secured backing from 5 investors, including venture fund investors. Prominent investors backing the company include Novo Holdings, Arboretum Ventures and Versant Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Private equity and venture capital fund focused on the healthcare sector | novoholdings.dk | Hellerup, Denmark | ||
Healthcare venture capital investments are made by Arboretum Ventures. | arboretumvc.com | Ann Arbor, United States | ||
Venture capital firm managing investments in biotechnology and pharmaceuticals since 1999. | versantventures.com | |||
Seed and early-stage venture capital is provided to US companies. | avalon-ventures.com | Cambridge, United States | ||
Early-stage US healthcare investments are made by Accuitive Medical Ventures. | amvpartners.com | Duluth, United States |
Investor details for Inogen
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People of Inogen
68 people are tracked at Inogen (36 in leadership, 7 in board & advisors, 25 in team); the tracked headcount is 766.
| Name | Role | Group |
|---|---|---|
Dara Canavan | Vice President, Commercial Enablement & Finance | Leadership |
Jennifer Hollinger | Vice President, Direct To Patient Sales | Leadership |
Cydney Wachi | Operations People Partner | Leadership |
Kevin R. M. Smith | President, CEO & Director | Leadership |
Jennifer Yi Boyer | Executive Vice President Of Enterprise Enablement & CHRO | Leadership |
Jeff Christ | Director Of Financial Planning And Analysis | Leadership |
Greg Ramade | Chief Commercial Officer (cco) | Leadership |
Paul Andreassi | Senior Vice President Quality Assurance & Regulatory Affairs | Leadership |
Naga Rameswamy | Chief Technology Officer | Leadership |
Cody Herndon | Director Of Government Sales And Business Development | Leadership |
Chandan Nandaram | Director, Digital Transformation | Leadership |
Tina Killion | Associate Director | Leadership |
Joris van Den Bergh | Vice President International Business | Leadership |
Philip Corrin | Senior Vice President Operations & Supply Chain | Leadership |
Rohit Bodhale | VP - Total Customer Care | Leadership |
Mary Wright | Vp, Corporate Controller, Accounting | Leadership |
Wilbert A. Bosman | Sales Director EMEA | Leadership |
Jeremy Schimek | Director Of Manufacturing Engineering | Leadership |
Ginger W. Spencer | Sr. Director Of Marketing | Leadership |
Liladhar Bagad | Vp, Chief Data And Information Officer (cdio) | Leadership |
48 more people are available in the full profile.
Complete people profiles for Inogen
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IPO & Listings of Inogen
Inogen is a publicly listed company on the NASDAQ with ticker symbol INGN in USA, operating in the Health technology sector. As a publicly traded entity, the company provides investors with opportunities to participate in its growth story through equity ownership. The listing enables access to capital markets, enhances corporate visibility, and provides liquidity for shareholders while maintaining transparency through regulatory compliance and regular financial disclosures.
- IPO date14 Feb 2014
- Listed onNASDAQ: INGN
- Listed entityInogen, Inc
- Exchange sectorHealth technology
- ISINUS45780L1044
- Share price$6.34 (-1.25% on the day) · 2026-10-13
- Market capitalisation$168.3M
- EPS (diluted, trailing year)$-0.90
- Volume (last session)293,057
Financials of Inogen
| Year | Revenue | Net income | EBITDA |
|---|---|---|---|
| 2025 | $348.7M | -$22.8M | -$9.6M |
| 2024 | $335.7M | -$35.9M | -$17.7M |
| 2023 | $315.7M | -$102.5M | -$46.2M |
| 2022 | $377.2M | -$83.8M | $6.5M |
| 2021 | $358.0M | -$6.3M | $30.9M |
Detailed financial statements for Inogen
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Investments & Acquisitions by Inogen
Inogen has strategically engaged in corporate development activities, having acquired 1 company. Notable acquisitions include PhysioAssist.
| Company Name | Description | Domain | Location | Founded | Acquired | Amount |
|---|---|---|---|---|---|---|
Bike buyers are connected to retailers via an online marketplace. | physioassist.com | 2012 | Jul 2023 | $45M |
Complete acquisition details for Inogen
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Timeline of Inogen
5 dated milestones of Inogen across 22 years, from founding to its latest funding, stage changes and deals.
- Founded Inogen is founded.
- Funding First funding round of $22.0M.
- Funding Latest funding round, Series D, of $20.0M.
- IPO Lists on the stock exchange (IPO).
- Acquisition Acquires PhysioAssist.
Competitors of Inogen
Inogen has 3 listed competitors in our database, 2 of them funded. They include Breathe Technologies, Liberate Medical and Chart SeQual.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| breathetechnologies.com | 2005 | Irvine, United States | $59.99M | 97 | Portable respiratory therapy systems are developed for lung diseases. | |
| liberatemedical.com | 2013 | Louisville, United States | $11.31M | Provides medical devices to stimulate respiratory muscles and aid weaning from ventilation. | ||
| sequal.com | 1991 | San Diego, United States | 335 | Transportable oxygen concentrators are provided for chronic lung disease patients. |
Detailed competitors of Inogen
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Web traffic of Inogen
The website of Inogen (inogen.com) receives about 160.2K visits a month and ranks #259,941 among all websites worldwide, #8,793 in Health.
- Monthly visits160.2K
▲ 1.7% vs previous month
- Unique visitors96.7K
per month
- Global rank#259,941
among all websites
- Category rank#8,793
Health · Health
- Bounce rate52%
- Pages per visit2.3
- Average visit1 min 32 sec
- DevicesDesktop 35% · Mobile 65%
Websites whose visitors overlap most with Inogen. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| oxygenconcentratorstore.com | 100% | #302,909 | View details | ||
mainclinicsupply.com | mainclinicsupply.com | 88% | #452,102 | – | |
oximedical.com | oximedical.com | 87% | #2,418,681 | – | |
hacenoroxygen.com | hacenoroxygen.com | 78% | #789,024 | – | |
oxygensolve.com | oxygensolve.com | 74% | #1,783,031 | – | |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
| •••••••••• | ••••••.com | ••% | •.•M | #••••• | – |
All 40 similar websites and full traffic analytics for Inogen
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Top companies in Pulmonology
3 companies that operate in the same segment as Inogen (Pulmonology) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Developer of novel protein-based therapeutics using machine learning and biological engineering | 2018 | Somerville, Massachusetts, United States | USD 693 M | 329 | ||
Robotic microsurgical systems for endoscopy are developed. | 2007 | Redwood City, California, United States | USD 733.62 M | 91 | ||
Cancer detection diagnostics assays are developed and offered. | 2005 | Boulder, Colorado, United States | USD 200.16 M | USD 88.5 M | 273 |
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Related news about Inogen
Complete news archive for Inogen
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Frequently Asked Questions about Inogen
Inogen was founded in 2001 and raised its 1st funding round 6 years after it was founded.
Inogen is headquartered in Goleta, United States. It is registered at Goleta, California, United States.
Inogen is a funded company, having raised a total of $51.65M across 3 funding rounds to date. The company's 1st funding round was a Series D of $22M, raised on Feb 2007.
Inogen has 766 employees.
Annual revenue of Inogen is $348.67M as on Dec 31, 2025.
Inogen was founded in 2001 in Goleta, United States, within the medical devices sector. Portable oxygen concentrators are designed and distributed to support oxygen therapy for patients with respiratory conditions. Ambient air is processed to extract nitrogen, yielding purified oxygen delivered continuously at up to 5 liters per minute through a nasal cannula. Operations focus on portable solutions for home and mobile use across the United States.
Inogen's top competitors include Breathe Technologies, Chart SeQual and Liberate Medical.
Yes, Inogen is publicly traded on NASDAQ under the ticker symbol INGN.
Inogen has made 1 acquisition, including PhysioAssist.
Inogen has 5 investors. Key investors include Novo Holdings, Arboretum Ventures, Versant Ventures, Avalon Ventures, and Accuitive Medical Ventures.
The website of Inogen receives about 160 thousand visits a month and ranks #259,941 among all websites worldwide.