TidalSense
Summary active Updated Jul 24, 2026This profile is AI-generated. If you spot an error, please help us fix it by sharing a URL to the correct information.
Founders
About
TidalSense is a Cambridge-based medical device company that builds an AI-driven handheld diagnostic — N-Tidal — that detects lung function changes to diagnose chronic obstructive pulmonary disease (COPD) and asthma in under five minutes at the point of care 1. Formerly Cambridge Respiratory Innovations, the company was founded in 2013 and its patented sensor technology relies on relaxed breathing rather than forced spirometry, reducing technique-dependent misdiagnosis 1. COPD is the third most common cause of death in England, killing about 30,000 people a year and costing the NHS £1.9 billion 2.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-07-24 | Series C | £14.2M | Cross Border Impact Ventures | BGF, Airstream Capital, Foresight Group 123 |
| 2023-05-17 | Series A | £7.5M | BGF, Downing | — 4 |
What Investors Say
No independently sourced investor quotes found for the 2026 round.
What Founders Say
CEO Ameera Patel argued that “Hardware companies are underinvested in,” but represent “some of the most defensible” ventures in today’s AI-driven landscape 2.
Sources
-
EU-Startups, “Cambridge’s TidalSense raises €16.6 million to turn the tide on respiratory diagnostics with patented AI tech,” July 24, 2026, accessed July 2026. https://www.eu-startups.com/2026/07/cambridge-based-tidalsense-raises-e16-6-million-to-take-its-ai-respiratory-diagnostic-technology-global/↩↩↩
-
Business Matters Magazine, “Hardware is back: £14m backs a five-minute NHS lung test,” July 2026, accessed July 2026. https://bmmagazine.co.uk/get-funded/tidalsense-14m-five-minute-lung-test/↩↩↩
-
Tech Funding News, “Ameera Patel couldn’t get diagnosed with her own asthma. So she built this device and raised $19M,” July 2026, accessed July 2026. https://techfundingnews.com/ameera-patel-tidalsense-19m-copd-diagnosis-device/↩
-
Business Cloud, “£7.5m for respiratory disease diagnosis startup TidalSense,” May 17, 2023, accessed July 2026. https://businesscloud.co.uk/news/7-5m-for-respiratory-disease-diagnosis-startup-tidalsense/↩