Zynex
From Wikipedia, the free encyclopedia
 | |
Company type | Public |
|---|---|
| Nasdaq: ZYXI | |
| Industry | Medical Technology |
| Founded | 1996 |
| Founder | Thomas Sandgaard |
| Headquarters | Meridian, Colorado, U.S. |
| Products | Medical devices |
| Revenue |  US$158.2 million (2022)[1] |
| US$17 million (2022)[2] | |
Number of employees | 1100 (2023) |
| Subsidiaries | Zynex Medical, Inc. Zynex Neurodiagnostics, Inc. Zynex Monitoring Solutions, Inc. Zynex Billing and Consulting, LLC Zynex Europe ApS. |
| Website | zynex |
Zynex, Inc. is a medical device manufacturer that produces and markets electrotherapy devices for use in pain management, physical rehabilitation, neurological diagnosis and cardiac monitoring.[3][4][5][6] Thomas Sandgaard founded Zynex Medical in 1996.[5]
The company is based in unincorporated Douglas County, Colorado.[7] Thomas Sandgaard serves as the company's CEO.[8]
In 1996, Thomas Sandgaard founded Zynex Medical as a wholesaler of electrotherapy products.[9][10] Sandgaard began working with medical devices in his native Denmark and immigrated to the United States with plans to open a medical devices business.[8] He launched his company in a one-bedroom apartment with $4,000 and a credit card.[4][11] In 1998, the company received its first Food and Drug Administration approval for one of its products, “an electric-stimulation device that managed pain and increased blood circulation to promote healing.”[8]
The company went public in 2004.[8] In 2008, the company changed its name from Zynex Medical Holdings to Zynex and began trading on the OTC Bulletin Board under the symbol ZYXI.[9] It relocated from Lone Tree, Colorado to Englewood, Colorado in early 2018.[12]
In February 2010, Zynex restructured its business into three subsidiaries: Zynex Medical, Zynex Monitoring Solutions and Zynex NeuroDiagnostic.[13][14] Zynex Medical manufactures electrotherapy devices for pain management and physical rehabilitation; Zynex Monitoring Solutions manufactures devices for non-invasive cardiac monitoring; and Zynex NeuroDiagnostic manufactures devices for neurological diagnosis.[3][4]
In March 2012, Zynex Medical acquired the assets of NeuroDyne Medical.[15] NeuroDyne Medical was a Cambridge, Massachusetts-based manufacturer of “medical devices for non-invasive measurement of surface electromyography and autonomic nervous systems.”[15] NeuroDyne Medical was folded into Zynex's NeuroDiagnostic subsidiary.[3][15]
In February 2019, Zynex Medical began trading on Nasdaq under the symbol ZYXI.[16]
In February 2020, Zynex received FDA clearance for their CM-1500 Cardiac Monitor.[17][18]
In December 2025, Zynex filed for Chapter 11 bankruptcy protection in an effort to receive new financing from its lenders.[19]