Verified Nov 2026
Electronics & Software
·
Chelmsford, Massachusetts
·
Since 1983
Zoll Medical Corporation designs and manufactures medical devices and software for emergency and critical care, including defibrillators, cardiac monitors, and automated CPR systems. Founded in 1983 and headquartered in Chelmsford, Massachusetts, the company is estimated to have between 5,000 and 10,000 employees and annual revenue in the $1 billion to $5 billion range. It is privately held and serves the medical, emergency services, military-defense, and industrial equipment sectors. In September 2026, the company's aeromedical defibrillator work was tied to a $45.3 million DLA option, as reported by envzone.com.
Zoll Medical Corporation at a glance
Revenue
$1-5B
Est. band
Employees
5,000-10,000
Founded
1983
Headquarters
Chelmsford, Massachusetts
Industries
Automotive
Electric Vehicles
Medical
Military & Defense
Industrial Equipment
Overview
Zoll Medical Corporation designs and manufactures medical devices and software for emergency and critical care, including defibrillators, cardiac monitors, and automated CPR systems. Founded in 1983 and headquartered in Chelmsford, Massachusetts, the company is estimated to have between 5,000 and 10,000 employees and annual revenue in the $1 billion to $5 billion range. It is privately held and serves the medical, emergency services, military-defense, and industrial equipment sectors. In September 2026, the company's aeromedical defibrillator work was tied to a $45.3 million DLA option, as reported by envzone.com.
At a glance
Attribute | Detail |
|---|---|
Founded | 1983 |
Headquarters | Chelmsford, Massachusetts |
Employees | 5,000-10,000 |
Revenue | $1-5B (estimated) |
Primary capability | Electronics & Software |
What Zoll Medical Corporation makes
The company's listed product and capability areas include electronics and software, and a new Zenix monitor/defibrillator received MDR approval, as reported on zoll.com in February 2026.
Products and capabilities described on the company's own site include LED (source: zoll.com).
Latest developments
2026-11-02 — New PolySense™ Accessories for WatchPAT® 400 Receive FDA Clearance | ZOLL Medical (zoll.com)
2026-10-02 — Sleep Diagnostic Kits: direct award to Zoll Medical UK Ltd [#077f30] · Tenderline (tenderline.uk)
2026-09-25 — ZOLL Medical Secures $62.2M DLA Contract Option for ... (envzone.com)
2026-09-17 — ZOLL Medical Wins $45.3M DLA Option for Aeromedical Defibrillators | Contract Awards (envzone.com)
2026-02-10 — New ZOLL Zenix Monitor/Defibrillator Receives MDR Approval | ZOLL Medical (zoll.com)
2026-02-04 — ZOLL Medical Appoints Eric Knudsen as New CEO | ZOLL Medical (zoll.com)
Facilities
Zoll Medical Corporation is headquartered in Chelmsford, Massachusetts. Public sources also reference these locations:
Rhode Island — massdevice.com
Chelmsford, Massachusetts — wlwt.com
Company details
The company is privately held, and its estimated scale and military-defense exposure are reflected in its industry listings. Zoll Medical Corporation was founded in 1983, has an estimated 5,000-10,000 employees, and is headquartered in Chelmsford, Massachusetts.
Frequently asked questions
What does Zoll Medical Corporation make?
Zoll Medical Corporation designs and manufactures medical devices and software for emergency and critical care, including defibrillators, cardiac monitors, and automated CPR systems. Founded in 1983 and headquartered in Chelmsford, Massachusetts, the company is estimated to have between 5,000 and 10,000 employees and annual revenue in the $1 billion to $5 billion range. It is privately held and serves the medical, emergency services, military-defense, and industrial equipment sectors. In September 2026, the company's aeromedical defibrillator work was tied to a $45.3 million DLA option, as reported by envzone.com.
Where is Zoll Medical Corporation headquartered?
Zoll Medical Corporation is headquartered in Chelmsford, Massachusetts (269 Mill Road, Chelmsford, Massachusetts, 01824).
When was Zoll Medical Corporation founded?
Zoll Medical Corporation was founded in 1983.
How big is Zoll Medical Corporation?
Zoll Medical Corporation has an estimated 5,000-10,000 employees, with revenue in the $1-5B range (estimated).
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Last verified Nov 2026. Is this your company? Request a correction.
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