Medical Wire Harness Manufacturers: 7 Companies Compared

Medical wire harness manufacturers build the electrical connections that power a wide range of medical devices. Below, we compare seven medical cable assembly and wire harness makers and cover what to look for when choosing one.

All details come from each company’s own website. They’re listed alphabetically, not ranked. Wiringo, which runs this site, is one of them.

Medical Wire Harness Manufacturers Compared

Bay Cable

Bay Cable holds ISO 13485 and builds molded medical cables, including single-use and robotic surgery cables, with its own machine shop for tooling.

• Location: Fremont, California, USA
• Products: Medical cables for patient monitoring, video, sensor probes, robotic surgery, aesthetic surgery and single-use devices; molded cable assemblies
• Industries served: Medical, industrial, automotive, audio, semiconductor
• Certifications: ISO 13485:2016, ISO 9001:2015, UL and CSA approvals
• Services: Design and engineering support, prototyping through medium volume, in-house machine shop and mold tools
• Website: www.baycable.com

Carrio Cabling Corporation

Carrio designs and builds its medical cables in Colorado, including pulse oximetry, EEG and ECG cables, and is ISO 13485 certified.

• Location: Colorado Springs, Colorado, USA
• Founded: 1988
• Products: Medical cable assemblies and connectors for pulse oximetry, EEG, ECG/EKG, surgical use, ambulance cots and pain management
• Industries served: Medical, oil field, RF coax, general industry
• Certifications: ISO 9001:2015, ISO 13485:2016, UL, IPC
• Services: Design, engineering, overmolding, stereolithography prototyping, coil cords
• Website: www.carriocabling.com

Epec Engineered Technologies

Epec offers medical device cables as part of a wider electronics range, with CAD layout and short runs before volume production.

• Location: New Bedford, Massachusetts, USA
• Founded: 1952
• Products: Medical device cables; overmolded, wire harness, shielded, coaxial, RF, power and flat ribbon cable assemblies
• Industries served: Medical, portable devices and other markets
• Certifications: ISO 9001:2015, ISO/IEC 27001:2022, UL, RoHS
• Services: Cable and connector selection, CAD layout, short runs before volume production, reverse engineering, design support
• Website: www.epectec.com

HUBER+SUHNER

HUBER+SUHNER builds its medical assemblies at its ISO 13485-certified site in Tczew, Poland.

• Location: Herisau, Switzerland
• Products: Cable assemblies, connectors, antennas and sub-systems, including harnesses for medical devices
• Industries served: Medical devices, test and measurement, energy, EV charging, communication, transportation
• Certifications: ISO 13485 (Tczew, Poland site), ISO 9001:2015, ISO 14001:2015, IATF 16949:2016, ISO 45001
• Services: Early project support, concept and prototype work, simulation, rapid prototyping, design-to-cost and design for manufacturability
• Website: www.hubersuhner.com/en

Mercury Wire

Mercury Wire extrudes its own cable and builds assemblies for non-invasive medical equipment such as imaging and light therapy devices.

• Location: Spencer, Massachusetts, USA
• Founded: 1967
• Products: Cable and cable assemblies for non-invasive medical uses: imaging, robotics, diagnostics, laser and light therapy
• Industries served: Medical, industrial power and communication, underwater, environmental, obstruction and safety lighting
• Certifications: No ISO certificate named; UL and CSA approvals for specific applications; RoHS and REACH compliance
• Services: Custom engineering and prototyping, assembly, extrusion, shielding, inventory management
• Website: www.mercurywire.com

Meridian Cable

Meridian builds patient monitoring, imaging and surgical cables in Florida and China, with its own life-testing lab.

• Location: St. Augustine, Florida, USA (second facility in Tanggu, China)
• Founded: 1994
• Products: Patient monitoring, diagnostic imaging, sensor and surgical cables; power and signal harnesses
• Industries served: Medical, industrial controls, telecommunications, automotive, broadcasting, retail security
• Certifications: ISO 9001:2015, UL-approved facility, IPC/WHMA-A-620, RoHS, REACH
• Services: Design and engineering, prototyping, pre-production and life testing, 100% testing, overmolding, volume manufacturing
• Website: www.meridiancableassemblies.com

Wiringo

Wiringo, which runs this site, builds medical cable assemblies and harnesses at its ISO 13485-certified factory in Shijiazhuang.

• Location: Shijiazhuang, Hebei, China (head office and factory)
• Founded: 2016
• Products: Custom medical cable assemblies and wire harnesses, from prototypes to volume production
• Industries served: Medical devices, automotive, industrial automation, consumer electronics
• Certifications: ISO 13485:2016, ISO 9001:2015, IATF 16949, IPC/WHMA-A-620E CIS (personnel)
• Services: Design support, prototyping, electrical testing; 5,000 m² factory
• Website: www.wiringo.com

How to choose the right medical wire harness manufacturer

Finding the right harness manufacturer means evaluating certifications, production capabilities, and experience in the medical field. Focus on these key factors when choosing a supplier.

Certifications 

ISO 13485 certifies that a manufacturer follows a quality management system specifically designed for medical device production. IPC/WHMA-A-620 defines standards for cable and wire harness assemblies, with Class 3 indicating the highest level of reliability required for medical applications.

FDA registration confirms that the manufacturing facility adheres to Good Manufacturing Practices. RoHS compliance means the absence of restricted hazardous substances. UL and CSA certifications demonstrate that safety testing has been conducted for electrical components used in medical applications.

Customization capabilities

Biocompatible materials prevent reactions when medical cables come into contact with patients. EMI shielding protects diagnostic signals in imaging and monitoring equipment from electrical interference. Mini connector options enable compact designs for portable devices and surgical tools.

Custom wiring and custom medical wire harness assemblies require prototype support to test designs before production. Look for manufacturers that can manufacture custom solutions with breakout configurations and abrasion-resistant jacketing for demanding medical environments.

Testing & inspection

Continuity testing confirms all connections work correctly in cable assemblies and wire harnesses. Hipot testing checks insulation safety under voltage stress. Bend/flex testing simulates repeated movement for cables used in surgical and monitoring equipment.

Insulation resistance measures the electrical separation between conductors to ensure patient safety. Environmental tests verify performance under various conditions, including moisture, temperature extremes, and vibration. Quality reports provide traceability for regulatory audits and assemblies to meet FDA requirements.

Scalability & lead times

Low minimum orders support prototype and pilot runs for new medical devices. Contract manufacturers should be able to scale from single-unit builds to mass production without requiring design changes or retooling.

Inventory management services help medical OEMs stay on schedule and simplify procurement. Ask potential suppliers about lead times for prototype and production orders to ensure they align with your product development timelines.

Track record & industry knowledge

Experience with Class I, II, and III medical devices demonstrates an understanding of the varying regulatory requirements and the complexity of harness manufacturing. Cleanroom knowledge matters for assemblies and harnesses used in sterile environments.

Sterilization expertise ensures cable materials and constructions withstand autoclaving or radiation without degradation. Proven work in imaging, patient monitoring equipment, and diagnostics demonstrates familiarity with the specific electrical and mechanical cable requirements of these medical applications.

Choosing a Medical Wire Harness Supplier

Before you commit, ask each supplier for copies of its certificates, a sample test report and a reference from a customer with a similar project, and get lead times quoted on your actual drawing.

If you’d like Wiringo to quote your project, send us your drawing.