Zynex Medical Holdings

Zynex is a medical technology company that specializes in the manufacture and sale of non-invasive medical devices for pain management, rehabilitation, and patient monitoring. Its flagship product, the NexWave, is a multi-modality electrotherapy device that combines Interferential Current (IFC), Transcutaneous Electrical Nerve Stimulation (TENS), and Neuromuscular Electrical Stimulation (NMES) to provide non-opioid pain relief. The company operates through specialized subsidiaries, including Zynex Medical for home-based pain management and Zynex Monitoring Solutions for hospital-grade patient monitoring technologies. While historically profitable with a large direct sales force, the company entered Chapter 11 bankruptcy protection in late 2025 and faced federal legal challenges in early 2026 regarding its billing practices.