Medical Devices
Englewood, Colorado

Overall Rank: 121
Category: Medical Devices
Category Rank: 27


  • Top HealthTech Company of 2022


Zynex, Inc. is an innovative medical technology company specializing in the manufacture and sale of non-invasive medical devices for pain management, rehabilitation, and patient monitoring. The company operates through two divisions: Zynex Medical and Zynex Monitoring Solutions.

Zynex Medical is focused on providing alternative pain management devices to patients across the nation. These pain management devices are electrotherapy, bracing, hot/cold therapy, and cervical traction. These devices are primarily used in rehabilitation or orthopedic settings, helping patients recover from chronic or acute pain. Zynex Monitoring Solutions is focused on developing non-invasive fluid, sepsis, and laser-based pulse oximetry monitoring systems for use in hospitals.

Zynex Inc. was founded by Thomas Sandgaard in 1996 and saw its first product cleared by the FDA in 1998. Zynex Monitoring Solutions was founded in 2010 and had its first device cleared in 2020. Zynex is located in Englewood, Colorado. From 2018 through 2021, its gross revenue has grown 308%.

Visit www.zynex.com

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Key Products

NexWave TM

The NexWave incorporates IFC, TENS & NMES in one easy to use device. These three proven modalities have been used for over 30 years to help patients manage their pain symptoms.

Aspen Horizon LSO

Aspen Horizon™ 637 LSO provides excellent lateral support and pain relief in individuals experiencing secondary back pain due to a surgery or an injury.

OA Knee Brace

The Zynex Pro OA Knee Brace offloads the medial or lateral compartment for patients with mild to moderate unicompartmental osteoarthritis of the knee. The Zynex Pro OA Knee Brace (Osteoarthritis) is universally sized— simply choose left or right—to fit virtually any patient. It’s incredibly easy to apply for both providers and patients. The single upright hinge design is comfortable, lightweight, and functional. The universal design limits inventory needed to cover the patient size range and allows for the brace to be used for both medial and lateral osteoarthritis.

Pro Post-Op Knee Brace

The Zynex Pro Post-Op Knee Brace is designed to provide protected, controlled range-of-motion (ROM) for patients recovering from knee surgery or those who have knee injuries or instabilities.

Saunders CT

This device continues Duane Saunders’ 30 year legacy as the premier designer of innovative traction devices. The features allow true replication of clinical treatments- comfort, angle and force of home treatments are identical to what patients would receive in the clinic. The Saunders Cervical Traction device greatly enhances patient compliance and satisfaction, and provides a comfortable and effective traction experience at home.

ComforTrac CT

ComforTrac is a safe device for cervical traction that can be used in the comfort of your home. It has been designed to replicate the care provided in a clinical setting. ComforTrac is easy to handle, allowing traction without assistance. It has been designed for 50 lbs maximum force; with 10, 15, and 20 degrees incline angles; with independently adjustable neck wedges; and with a memory foam headrest.


E-Wave™ is an easy-to-use NeuroMuscular Electrical Stimulator (NMES) designed to accurately deliver the desired intensity and frequency of electrical current using modern state-of-the-art technology. E-Wave™ is one of the safest stimulators in the world with safety features such as an electrode alarm, level locking, and a guaranteed constant current. It is a fully programmable, compact, battery-powered device with a digital on-screen display, an adjustable treatment timer and compliance meter, biphasic or monophasic waveforms (AC or DC), and an optional external trigger.


NeuroMove™ is FDA-cleared for stroke rehabilitation, and its use has dramatically ameliorated functional impairments in stroke survivors in many clinical studies and in the clinical practice. It is sophisticated enough to employ in the clinic, yet simple enough for patients to use at home. Utilizing the device 30 minutes daily for 4–5 months has been shown to yield excellent results.


JetStream provides hot and cold therapy that can be used during the immediate post-operative period (cold therapy) or during rehabilitation (hot/cold therapy). JetStream is a portable, intuitive, and user-friendly system suitable for any medical setting or home treatment. Therapy Blankets optimize the temperature distribution, insulation, and comfort.


The InWave device delivers a nonsurgical, drug-free, and cost-effective therapy to manage incontinence. It can be used in combination with biofeedback, Kegel exercises, and other therapies to regulate and manage continence.