Heartsine Overview

  • Year Founded
  • 1997

Year Founded

  • Status
  • Acquired/​Merged

  • Employees
  • 215

Employees

  • Latest Deal Type
  • M&A

  • Latest Deal Amount
  • $77M

  • Investors
  • 1

Heartsine General Information

Description

Developer of portable emergency response devices designed for life-saving intervention during sudden cardiac events. The company's platform incorporates real-time event data capture, compact and lightweight construction, integrated battery and electrode systems, and intuitive visual and audio prompts, enabling public access responders and healthcare providers rapid deployment, simplified operation, and improved outcomes in high-stress environments.

Contact Information

Website
uk.heartsine.com
Ownership Status
Acquired/Merged
(Operating Subsidiary)
Financing Status
Formerly VC-backed
Corporate Office
  • 203 Airport Road West
  • Belfast BT3 9ED
  • Northern Ireland, United Kingdom
+44 028
Primary Industry
Monitoring Equipment
Other Industries
Other Healthcare Technology Systems
Therapeutic Devices
Parent Company
Physio-Control Operations Netherlands
Vertical(s)
HealthTech
Corporate Office
  • 203 Airport Road West
  • Belfast BT3 9ED
  • Northern Ireland, United Kingdom
+44 028

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Heartsine Valuation & Funding

Deal Type Date Amount Raised to Date Post-Val Status Stage
8. Merger/Acquisition 13-Sep-2015 $77M Completed Generating Revenue
7. Debt - General 07-Dec-2007 Completed Generating Revenue
6. Later Stage VC (Series E) 18-Jul-2007 Completed Generating Revenue
5. Later Stage VC 18-Dec-2004 Completed Generating Revenue
4. Later Stage VC 01-Mar-2002 Completed Generating Revenue
3. Early Stage VC 01-Dec-2000 Completed Product Development
2. Merger/Acquisition 20-Jul-1999 Cancelled Startup
1. University Spin-Out 01-Jan-1997 Completed Startup
To view Heartsine’s complete valuation and funding history, request access »

Heartsine Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Developer of portable emergency response devices designed for life-saving intervention during sudden cardiac events. The
Monitoring Equipment
Belfast, United Kingdom
215 As of 2025

Campbell, CA
 

Chelmsford, MA
 
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Heartsine Competitors (8)

One of Heartsine’s 8 competitors is CardioDiagnostics, a Private Equity-Backed company based in Campbell, CA.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
CardioDiagnostics Private Equity-Backed Campbell, CA
InfoBionic.Ai Venture Capital-Backed Chelmsford, MA
AliveCor Venture Capital-Backed Mountain View, CA
iRhythm Holdings Formerly VC-backed San Francisco, CA
Bardy Diagnostics Venture Capital-Backed Bellevue, WA
You’re viewing 5 of 8 competitors. Get the full list »

Heartsine Patents

  • 121

    Total Documents Applications and Grants

  • Total Patents Families

  • 50

    Granted

  • Pending

  • Expiring in next 12 mo

Heartsine Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
GB-202020616-D0 Resuscitation system Inactive 05-May-2020
GB-2595018-A Resuscitation system Inactive 05-May-2020
EP-3888741-A1 Defibrillator assessing chest recoil in cardio pulmonary resuscitation Active 03-Apr-2020
EP-3888741-B1 Defibrillator assessing chest recoil in cardio pulmonary resuscitation Active 03-Apr-2020
GB-202004936-D0 Defibrillator assessing chest recoil in cardio pulmonary resuscitation Inactive 03-Apr-2020 A61N1/39044
To view Heartsine’s complete patent history, request access »

Heartsine Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

Majestic Referring Domains

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Heartsine Former Investors (7)

Investor Name Investor Type Holding Investor Since Participating Rounds
Act Venture Capital Venture Capital Minority
Clarendon Fund Managers Venture Capital Minority
Crescent Capital Venture Capital Minority
Duncreggan Student Village University
Enterprise Equity Venture Capital Minority
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Heartsine FAQs

  • When was Heartsine founded?

    Heartsine was founded in 1997.

  • Where is Heartsine headquartered?

    Heartsine is headquartered in Belfast, United Kingdom.

  • What is the size of Heartsine?

    Heartsine has 215 total employees.

  • What industry is Heartsine in?

    Heartsine’s primary industry is Monitoring Equipment.

  • Is Heartsine a private or public company?

    Heartsine is a Private company.

  • What is the current valuation of Heartsine?

    The current valuation of Heartsine is .

  • What is Heartsine’s current revenue?

    The current revenue for Heartsine is .

  • How much funding has Heartsine raised over time?

    Heartsine has raised $13.9M.

  • Who are Heartsine’s investors?

    Act Venture Capital, Clarendon Fund Managers, Crescent Capital, Duncreggan Student Village, and Enterprise Equity are 5 of 7 investors who have invested in Heartsine.

  • Who are Heartsine’s competitors?

    CardioDiagnostics, InfoBionic.Ai, AliveCor, iRhythm Holdings, and Bardy Diagnostics are some of the 8 competitors of Heartsine.

  • When was Heartsine acquired?

    Heartsine was acquired on 13-Sep-2015.

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