Here are some of the leading contract manufacturers (CMOs/CMs) serving the medical-device industry today. These firms offer end-to-end services—design for manufacturability (DFM), precision component fabrication, clean-room assembly, final testing, regulatory support and supply-chain management—for products ranging from disposable diagnostic kits to complex implantable devices.

1. Jabil
   • Global electronics and medical-device contract manufacturer with over 100 manufacturing sites in 29 countries.
   • In January 2026, Jabil signed a major agreement to produce reusable on-body injector drug-delivery devices, including fill-finish services, underscoring its growing footprint in combination devices (grandviewresearch.com).
   • Offers turnkey solutions from initial prototyping through scale-up and full-scale production in ISO 13485 and FDA-registered facilities.

2. Flex (formerly Flextronics)
   • One of the world’s largest electronics-manufacturing services (EMS) providers, with extensive capabilities in medical-grade plastics, tooling, subassembly and automated final assembly (chipoda.com).
   • Operates multiple FDA-registered, ISO 13485–certified clean rooms geared to Class II and Class III device manufacturing.
   • Provides vertically integrated supply-chain management and aftermarket services.

3. Benchmark Electronics
   • Specializes in precision medical-device EMS and subsystem assembly, including microelectronics, electro-mechanical subassemblies and advanced packaging (clutch.co).
   • Facilities in the U.S., Europe and Asia equipped for Class II/III device production and diagnostic instrumentation.
   • Offers co-development support and FDA audit-ready quality systems.

4. Celestica
   • Global contract manufacturer with dedicated medical-device centers of excellence in North America and Europe (hcranking.com).
   • Deep expertise in high-reliability electronics, embedded software, test-and-measurement and automated inspection for diagnostic and therapeutic equipment.
   • Emphasis on design validation, risk management (ISO 14971) and post-market surveillance support.

5. Plexus Corp.
   • Provides full-life-cycle product realization for diagnostic instruments, infusion pumps, monitoring systems and wearable devices (50pros.com).
   • ISO 13485–certified design and manufacturing centers in the U.S., Europe and Asia.
   • Strong track record in managing regulatory submissions (510(k), CE marking) and sustaining lean, FDA-compliant quality systems.

6. Sanmina
   • A leading EMS provider with end-to-end medical offerings—from component sourcing and micro-assembly to final packaging and distribution (chipoda.com).
   • Focuses on minimally invasive surgical instruments, robotic-assisted device subsystems and on-body diagnostics.
   • Maintains multiple ISO 13485– and FDA-registered sites, plus extensive clinical logistics capabilities.

7. TE Connectivity (Medical Division)
   • While better known for sensors and connectors, its Medical Division provides overmolding, catheter tips, multi-lumen tubing and subassembly for a variety of interventional devices (verifiedmarketresearch.com).
   • Global footprint with specialized clean-room operations and dedicated R&D support for new materials and manufacturing processes.

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When evaluating CMs for your project, key criteria include:
• Regulatory Compliance: ISO 13485 certification, FDA registrations and European MDR readiness.
• Clean-Room Capability: Class 7–8 for most device manufacturing; Class 5–6 for critical assemblies.
• Quality Systems: Robust CAPA, change control, risk management (ISO 14971) and audit track records.
• Design for Manufacturability: Early-stage DFM support to de-risk scale-up.
• Supply-Chain Strength: Vertical integration vs. multi-sourcing strategies; turnkey logistics and sterilization management.
• Geographic Footprint: Proximity to end markets for reduced lead times and tariff-risk mitigation.

Choosing the optimal partner depends on your device class (I, II or III), volume requirements, complexity (mechanical vs. electromechanical vs. combination products) and regulatory pathway. These seven firms represent some of the most capable, experienced and highly audited contract manufacturers in the medical-device sector today.

Best Contract Manufacturers for Medical Devices (2025)

Outsourcing to specialized contract manufacturers offers a competitive advantage—allowing companies to streamline operations, cut costs, and focus on core innovation while ensuring products meet the highest standards of precision and safety.

The global medical device contract manufacturing market is projected to reach USD 140.84 billion in 2030 from USD 83.77 billion in 2025, at a CAGR of 10.9%.

Here are the top contract manufacturers for medical devices in 2025:

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🏆 1. Jabil Inc. (St. Petersburg, FL, USA)

One of the largest global providers of healthcare manufacturing solutions, Jabil reported annual revenue of $28.883 billion in 2024. It offers comprehensive manufacturing capabilities across the entire product lifecycle, including design, New Product Introduction (NPI), tooling, injection molding, robotics, and extensive supply chain solutions.

The company demonstrates particular strength in complex vertical integration of technologies and process developments, especially for robotic-assisted surgery and minimally invasive devices.

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🏆 2. Flex Ltd. (Singapore)

Flex Medical Solutions, part of the Flex global network, is a leader in scalable, automated device manufacturing. Their tailored solutions for wearable and connected health devices blend design innovation with proven quality systems.

In May 2025, Flex Ltd. expanded its partnership with Arch Systems, a leader in manufacturing analytics, aiming to optimize Flex's end-to-end manufacturing operations through advanced data and analytics-driven insights.

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🏆 3. Integer Holdings Corporation (USA)

Integer Holdings is one of the largest medical device contract manufacturers globally, providing design and manufacturing services for cardiac, neuromodulation, and vascular devices. The company is recognized for its expertise in biomedical device manufacturing and precision engineering for implantable and wearable medical technologies. Its vertically integrated approach ensures scalability and compliance with FDA and ISO standards.

In February 2025, Integer Holdings Corporation acquired Precision Coating for USD 152 million, adding advanced surface coating technologies such as fluoropolymer and anodic coatings.

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🏆 4. Sanmina Corporation (USA)

Operating a network of advanced manufacturing facilities across more than 20 countries on six continents, Sanmina delivers a broad spectrum of services encompassing design and engineering support, new product introduction (NPI), supply chain management, logistics solutions, and after-market services. The company allocates significant resources toward R&D to maintain a competitive edge.

Sanmina Corporation focuses on electronic systems integration and turnkey solutions for diagnostic imaging, surgical tools, and patient monitoring devices.

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🏆 5. Plexus Corp. (USA)

Plexus Corp. emphasizes product development and regulatory compliance, catering to complex and low-volume medical device needs.

Its robust regulatory compliance adheres to numerous medical device design and manufacturing standards, including ISO 9001, ISO 13485, ISO 14001, FDA 21 CFR Part 820, CE Mark, NMPA, JGMP, and ANVISA.

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🏆 6. Nordson Corporation

Nordson Corporation specializes in precision dispensing equipment and contract manufacturing services for the healthcare and life sciences industry. The company offers solutions in drug delivery systems, medical tubing, and surgical equipment manufacturing. Nordson's strong R&D capabilities and global presence make it a preferred contract manufacturer for medical devices and minimally invasive technologies.

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🏆 7. Viant Medical

Viant Technology is a full-service medical device contract manufacturer specializing in single-use technologies, drug delivery systems, and interventional devices. Viant's manufacturing capabilities span injection molding, extrusion, assembly, and sterilization, catering to both startups and established medtech firms seeking low-cost, high-quality production.

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🏆 8. Thermo Fisher Scientific (Waltham, MA, USA)

Thermo Fisher Scientific is a global leader in serving science, reporting annual revenue exceeding $43 billion as of April 2025. Key differentiators include its ability to combine the quality and reliability of a large corporation with the responsiveness and flexibility typically associated with smaller companies.

Its robust Regulatory and Quality Systems ensure compliance with ISO 13485, ISO 9001, ISO 14001, Canadian medical device regulations, and FDA medical device/IVD regulations.

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🏆 9. Nipro Corporation (Osaka, Japan)

Nipro Corporation is a prominent global player in medical device manufacturing, particularly for renal, vascular, and infusion devices, supported by integrated supply ecosystems and a commitment to quality.

Nipro is recognized as a comprehensive healthcare company with a leading market share in dialyzers in Japan and a second-place global ranking in this segment.

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🏆 10. Tegra Medical (USA)

Tegra Medical is a specialized contract manufacturer of finished medical devices and complex components, offering comprehensive solutions from design to final assembly. With a strong focus on maintaining manufacturing integrity and regulatory compliance, Tegra Medical is well-equipped to meet the needs of the medical device industry.

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📋 Key Things to Look for When Choosing a Medical Device CMO

Factor	Why It Matters
Certifications	ISO 13485, FDA 21 CFR Part 820 compliance are essential
Design Support
Most strong medical contract manufacturing companies offer Design for Manufacturability advice early in the process.
Scalability	Can they scale from prototype to high-volume production?
Supply Chain
In today's unstable world, relying on one supplier is a recipe for disaster. You want a partner with a wide network of vendors.
Transparency
Some medical device contract manufacturing companies hide charges in tooling, MOQ, and material substitutions.

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The right contract manufacturer depends on your device type, volume, regulatory requirements, and budget. Large players like Jabil and Flex are ideal for scale, while specialized firms like Tegra Medical or Viant may be better for niche or complex devices.

When seeking a contract manufacturer for medical devices, it's important to consider factors beyond just size, such as their capabilities, regulatory compliance, quality control, and ability to act as a strategic partner throughout the product lifecycle. Many top-tier manufacturers are evolving into Contract Development and Manufacturing Organizations (CDMOs), offering comprehensive, integrated solutions from design to production.

Here are some of the leading medical device contract manufacturers:

Major Global Players & CDMOs:

• Jabil Inc. - Recognized as one of the largest global providers of healthcare manufacturing solutions, Jabil offers extensive capabilities across the entire product lifecycle, including design, new product introduction (NPI), tooling, injection molding, robotics, and supply chain management. They also act as a CDMO, providing services like aseptic filling, lyophilization, and oral solid dose manufacturing. Jabil's annual revenue for 2024 was reported at $28.883 billion.
• Flex Ltd. - Flex is another significant name in the medical device contract manufacturing industry, providing end-to-end supply chain solutions, design and engineering support, advanced automation, precision plastics, and vertical integration. Their annual revenue for 2024 was $26.42 billion.
• Sanmina Corporation - Headquartered in San Jose, California, Sanmina offers comprehensive design, build, and service solutions for complete medical systems, equipment, and products. Their core capabilities include manufacturing and repair of systems involving complex technologies such as electronics, mechatronics, and fluidics. Sanmina's annual revenue for 2024 was $7.69 billion.
• Plexus Corp. - Known for its quality systems, Plexus is a strong option for reliable design and manufacturing of complex medical devices. They provide components and participate in the design and manufacture of products in various industries, including medical.
• Integer Holdings Corporation - A key player in the medical device contract manufacturing market, Integer specializes in interventional, cardiovascular, and neuromodulation segments. They offer vertically integrated manufacturing and R&D capabilities, focusing on high-end medical components and finished devices like catheters and implants.
• Celestica Inc. - Celestica is also listed among the top global medical device contract manufacturers, expanding its services through acquisitions and strategic partnerships.
• West Pharmaceutical Services, Inc. - This company is a leading global manufacturer specializing in the design and production of high-quality containment and delivery systems for injectable medicines. They offer comprehensive contract manufacturing services from concept design to full-scale manufacturing. Their annual revenue for 2024 was $2.893 billion.
• Cirtec Medical - Cirtec Medical is a vertically integrated, full-service outsource partner offering end-to-end product design, development, and manufacturing services for complex medical devices. They specialize in active implantable device design and development, precision machining, and cleanroom assembly.
• Recipharm AB - A global CDMO, Recipharm provides contract development and manufacturing services for both pharmaceutical and medical device industries, specializing in various dosage forms and delivery devices, including inhalers and injectables.

Other Notable Manufacturers and Considerations:

• Arterex Medical - Arterex Medical is recognized for its quality and innovation in medical device manufacturing, specializing in standardized and custom solutions for diagnostics, surgical instruments, and therapeutic devices.
• NewTop Automatic System - This company offers advanced solutions for precision manufacturing tailored to medical device production, emphasizing quality control, custom solutions, and an experienced engineering team.
• Cirtronics - A trusted contract manufacturer in the medical and life sciences space, Cirtronics is known for building complex, quality-sensitive assemblies and systems with precision. They are FDA Registered and hold ISO9001 and ISO 13485 certifications.
• Karkhana.io - This company is noted for its flexibility, quick response times, and ability to handle various aspects of manufacturing, including parts, suppliers, assembly, and quality, making them suitable for startups. They are ISO-certified and offer an instant costing tool.
• TE Connectivity Ltd. - Also recognized as a key player in the MedTech CMO market.

When evaluating potential partners, consider those that offer value-added services beyond manufacturing, such as product design, manufacturability expertise, and guidance through regulatory approval processes. The ability to engage early in a product's lifecycle and provide comprehensive support can lead to long-term partnerships and repeat business.

The best contract manufacturers for medical devices depend on your device type, regulatory class, and scale, but the strongest names in the results are Jabil, Plexus, Sanmina, Integer Holdings, Flex, Celestica, and Tecomet. Market research from MarketsandMarkets identifies Jabil as a “star company” and lists Flex, Sanmina, Plexus, and Integer Holdings among the key market players in medical device contract manufacturing. Karkhana’s top-manufacturers list also includes Jabil, Flex, Tecomet, Celestica, Sanmina, Thermo Fisher Scientific, and Plexus.

A practical short list by use case:

• Best for large-scale, global manufacturing: Jabil — highlighted for global presence, advanced manufacturing capabilities, and strategic partnerships.
• Best for complex, integrated device programs: Plexus — listed among key market players and top manufacturers.
• Best for broad contract manufacturing coverage: Sanmina — listed as a key market player and top manufacturer.
• Best for precision components and device subsystems: Integer Holdings and Tecomet — both appear in leading manufacturer lists.
• Best for diversified electronics-to-medical manufacturing: Flex and Celestica — both appear in top lists and key market player sets.

If you want smaller or more specialized contract manufacturers, the results also point to Arterex, SMC Ltd., and Domico Med-Device as dedicated medical device contract manufacturing providers.

If you tell me your device class, volume, geography, and whether you need molding, assembly, sterilization, or full turnkey support, I can narrow this to the best 3–5 matches.