About Spirosure
Spirosure is a Healthcare company based in Pleasanton (United States) founded in 2011 by Solomon Ssenyange, and was acquired by CAIRE in June 2020. Non-invasive breathalyzers are developed for pulmonary disease monitoring. Spirosure has raised $50 million across 4 funding rounds from investors including Fosun Pharmaceutical, Caireinc and Niterra Ventures. The company has 12 employees. The company was acqui-hired. Its focus areas include Life Sciences, Pulmonology, Medical Devices and Monitoring Devices. Its legal entity is SPIROSURE, INC. Its competitors include Linshom, Apieron and Medipines; 3 of its 3 listed competitors have raised funding.
Company details
Spirosure is engaged in the research, development and commercialization of novel breath analysis devices for the diagnosis and management of diseases. The companys current focus is on the non-invasive monitoring and management of chronic pulmonary diseases such as Asthma, COPD, cystic fibrosis, and pulmonary hypertension. Their products include the Fenom PRO POC breathalyzer and the Fenom HOME at-home breathalyzer for measurement of fractional exhaled Nitric Oxide in the management of Asthma.
- Headquarters Pleasanton, United States
- Employees 12
- Founders Solomon Ssenyange
- Stage Acquired
- SectorsHealthcare
- Emailβ’β’β’β’β’β’β’β’
- Phoneβ’β’β’β’ β’β’β’β’
- Website spirosure.com
- Social LinkedIn
- Acquired by CAIRE (Jun 2020)
- Legal Name Spirosure, Inc.
- Total Equity Funding$50M (USD)
in 4 rounds
- Latest Funding Round$15M (USD), Series C
Jan 2018
- InvestorsFosun Pharmaceutical
& 7 more
- Employee Count12
- Acquired byCAIRE
(Jun 2020)
Funding Insights of Spirosure
Spirosure has successfully raised a total of $50M across 4 strategic funding rounds. The most recent funding activity was a Series C round of $15 million completed in January 2018. 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 $50M
- Total Rounds 4
- Last Round Series C β $15M
- First Round $9M
(Oct 2014)
- Investors Count 7
All 4 funding rounds of Spirosure 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 |
|---|---|---|---|---|---|
| Jan 2018 | $15M | Series C | β | β | |
| Jun 2016 | $17.4M | Series C | β | β | |
| Nov 2014 | $8.6M | Series B | β | β | β |
| Oct 2014 | $9M | Series B | β | β | β |
8 investors in total: 8 institutional.
Investors in Spirosure
Spirosure has secured backing from 8 investors, including venture fund and institutional investors. Prominent investors backing the company include Fosun Pharmaceutical, Caireinc and Niterra Ventures.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Innovative ideas are transformed into reality by Niterra Ventures. | niterraventures.com | Tokyo, Japan | ||
| southvalleyangels.com | ||||
Early-stage sector-agnostic VC firm investing in geographies such as the US | ohioinnovationfund.com | Columbus, United States | ||
Investment is made in breakthrough technology startups by Iconical. | iconical.com | |||
Research, development, production, and sale of pharmaceuticals are provided. | 1994 | fosunpharma.com | Shanghai, China | |
| ngksparkplugs.com | ||||
| carmensllc.com | ||||
Oxygen generators are manufactured in Pleasanton, United States. | 2011 | caireinc.com | Pleasanton, United States |
Investor details for Spirosure
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People of Spirosure
1 people are tracked at Spirosure (1 in leadership); the tracked headcount is 12.
| Name | Role | Group |
|---|---|---|
Solomon Ssenyange | Founder & Chairman | Leadership |
Complete people profiles for Spirosure
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Timeline of Spirosure
4 dated milestones of Spirosure across 9 years, from founding to its latest funding, stage changes and deals.
- Founded Spirosure is founded.
- Funding First funding round of $9.0M.
- Funding Latest funding round, Series C, of $15.0M.
- Exit Acquired by CAIRE.
Competitors of Spirosure
Spirosure has 3 listed competitors in our database, 3 of them funded. They include Linshom, Apieron and Medipines.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| linshomforlife.com | 2009 | Ellicott, United States | $3.35M | Developer of respiratory monitoring devices | ||
| apieron.com | 2001 | Menlo Park, United States | $68.52M | Functions as an asthma monitoring device for health management. | ||
| medipines.com | 2014 | Yorba Linda, United States | $2.56M | 10 | Non-invasive respiratory measurement devices are developed for gas exchange assessment. |
Detailed competitors of Spirosure
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Top companies in Pulmonology
3 companies that operate in the same segment as Spirosure (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 | ||
Portable oxygen concentrators are supplied for respiratory therapy needs. | 2001 | Goleta, California, United States | USD 51.65 M | USD 348.67 M | 766 | |
Robotic microsurgical systems for endoscopy are developed. | 2007 | Redwood City, California, United States | USD 733.62 M | 91 |
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Related news about Spirosure
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Frequently Asked Questions about Spirosure
Spirosure was founded in 2011 and raised its 1st funding round 3 years after it was founded.
Spirosure is headquartered in Pleasanton, United States. It is registered at Pleasanton, California, United States.
Spirosure is a funded company, having raised a total of $50M across 4 funding rounds to date. The company's 1st funding round was a Series B of $9M, raised on Oct 2014.
Spirosure has 12 employees.
Spirosure is engaged in the research, development and commercialization of novel breath analysis devices for the diagnosis and management of diseases. The companys current focus is on the non-invasive monitoring and management of chronic pulmonary diseases such as Asthma, COPD, cystic fibrosis, and pulmonary hypertension. Their products include the Fenom PRO POC breathalyzer and the Fenom HOME at-home breathalyzer for measurement of fractional exhaled Nitric Oxide in the management of Asthma.
Spirosure has 8 investors. Key investors include Fosun Pharmaceutical, Caireinc, Niterra Ventures, NGK Spark Plugs, and South Valley Angels.
Spirosure operates through Spirosure, Inc..
Yes. Spirosure was acquired by CAIRE in June 2020.

