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Nanostim

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Miniaturized, retrievable, leadless cardiac pacemaker system

Sunnyvale, United StatesFounded 2007Health Tech & Medtech
Valuation $100–500M Latest valuation · 2013
Headcount 5–10k Current team size
Total funding $10–50M Disclosed equity funding
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About Nanostim

For decades, pacemakers were a marvel of medical technology, but they had a persistent vulnerability: the leads. These wires, which connect the device to the heart, could fracture or cause complications. A company called Nanostim, led by CEO Drew Hoffman, envisioned a radical solution: a pacemaker so small it could be implanted directly into the heart, no leads required. This wasn't just an incremental improvement; it was a fundamental rethinking of the technology. The result was a device less than 10% the size of a conventional pacemaker, delivered via a minimally invasive catheter procedure. This eliminated the need for a surgical pocket in the chest and removed the risks associated with leads. In 2011, medical device giant St. Jude Medical recognized the game-changing potential, making an initial investment and securing an exclusive option to acquire the startup. By October 2013, Nanostim had achieved a critical milestone: CE mark approval in Europe. On the very same day, St. Jude Medical exercised its option, acquiring Nanostim in a significant deal. The acquisition cost $123.5 million upfront, with up to an additional $65 million based on future milestones. The move combined Nanostim’s pioneering technology with St. Jude's established commercialization power, aiming to revolutionize cardiac rhythm management for patients worldwide.

Source: Dealroom company data

At a glance

Status
Acquired
Founded
2007
Headquarters
Sunnyvale, United States
Employees
5,897
Open positions
None listed
Dealroom signal
61.3/100
Industry
Health
Sub-industry
Medical Devices
Sector
Health Tech & Medtech, Biotechnology, medical implants, Surgery, DT and LS, science-based
Technology
Deep Tech
Client focus
b2c

Latest news

Press, funding announcements and product moves mentioning Nanostim.

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Funding history

6 recorded events

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Oct 2013 $124M $124M St. Jude Medical
EARLY VCEquity / VC May 2013 $9.5M $38M InterWest Partners · Emergent Medical Partners
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Growth signals

Nanostim website traffic

Latest recorded traffic for Nanostim is 0 monthly website visits, down 100% over the last three months. Nanostim's team declined 11.8% over the past year.

Latest monthly visits0 3-month web change-100% 1-year team growth-11.8%
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Similar companies

Closest operating peers by Dealroom taxonomy

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Investors

3 investors on the cap table

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

Series A2 investors entered at this stage

Other known investors1 additional known investor

  • St. Jude Medical
Team profiled 247 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 7 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
64 countries with
team presence
🇺🇸 United States68.5%
🇮🇳 India4.2%
🇧🇷 Brazil2.5%
🇧🇪 Belgium2%
🇨🇷 Costa Rica1.9%
Top 5 of 64 shown

Market sentiment

Posts on X, past 7 days

An AI-synthesised read of the highest-engagement posts about Nanostim 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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