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ATsens

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Long-term, wearable ECG monitoring patch and software

Seongnam-si, South KoreaFounded 2017Health Tech & Medtech
Valuation $50–100M Last recorded · 2026
Revenue $1–10M Latest reported FY
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About ATsens

ATsens is a South Korean medical device and healthcare platform company founded in 2017 by CEO Jeong Jon-gook. The company specializes in early diagnostic solutions for heart-related diseases through its bio-signal-based healthcare platform.

The company's core offering is the AT-Heart care system, which includes the AT-Patch, the AT-Note mobile application, and the AT-Report analysis software. The AT-Patch is a lightweight (13g), shower-proof (IP57), wearable electrocardiogram (ECG) monitor that can continuously record a patient's heart signals for up to 14 days without needing to be charged or having its battery replaced. This long-term monitoring capability is designed to improve the diagnosis rates of intermittent arrhythmias. The device is available in models for 7-day or 14-day use. Data from the patch is managed via the AT-Note app (available on Android and iOS), which can display a live ECG, and is then analyzed by the AT-Report software, which utilizes advanced algorithms to generate reports for medical professionals.

ATsens has achieved significant regulatory milestones, receiving approvals from Korea's Ministry of Food and Drug Safety (MFDS), the European Medicines Agency (EMA), the UK's Medicines and Healthcare products Regulatory Agency (MHRA), Japan's PMDA, and, notably, U.S. Food and Drug Administration (FDA) clearance in October 2022. This makes its AT-Patch the first such South Korean device to be approved for the U.S. market. The company has secured at least $8.76 million in funding from investors including Sneak Peek Investment, Samho Green Investment, Vision Creator, and Hana Financial Group.

Source: Dealroom company data

At a glance

Status
Operational
Founded
2017
Headquarters
Seongnam-si, South Korea
Employees
31
Open positions
None listed
Dealroom signal
86.7/100
Industry
Health
Sub-industry
Medical Devices
Sector
Health Tech & Medtech, Health Diagnostics, Wearable, Hard Tech, DT and LS, science-based
Technology
Deep Tech
Business model
Manufacturing
Client focus
b2b

Funding history

3 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
CONVERTIBLE✓Equity / VC Mar 2026 $0 — Undisclosed ↗
LATE VC✓Equity / VC Mar 2026 $11M $88M S Ventures · Intellectual Discovery · KIWOOM SECURITIES · Gravity Incubator ↗
Showing the latest 2 of 3 recorded eventsBook a demo for the full funding history →

Financials

Revenue over time

Revenue, earnings and other financial measures where available. Years marked “E” are estimates.

YearRevenueGrowth
2026
2025 —
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Growth signals

ATsens website traffic

Latest recorded traffic for ATsens is 2.4K monthly website visits, down 80% over the last three months. ATsens's team grew 10.7% over the past year.

Latest monthly visits2.4K 3-month web change-80% 1-year team growth+10.7%
Summary metrics are public; monthly history is available with a demoCompare with peers →

Similar companies

Closest operating peers by Dealroom taxonomy

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Investments and acquisitions

Capital deployed

Recent portfolio relationships for companies that also act as investors or acquirers.

Investors

11 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Series A6 investors entered at this stage

  • DS Asset Management
  • SGI Venture Capital
  • Sneak Peek Investments, Inc.
  • Vision creator
  • Intops Investment
  • Hana Financial Investment

Series B and later5 investors entered at this stage

  • S Ventures
  • Intellectual Discovery
  • KIWOOM SECURITIES
  • Gravity Incubator
  • HLB Group
Team profiled 3 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 2 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
1 countries with
team presence
🇰🇷 South Korea100%
1 country shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about ATsens on X, ranked by likes and reposts, corporate channels excluded.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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