Phillips-Medisize vs Flex Health Solutions: full comparison for 2026
Quick verdict
Phillips-Medisize (3.9/5) edges ahead of Flex Health Solutions (3.8/5) overall. Phillips-Medisize is the better choice for drug delivery devices needing high-volume production. Flex Health Solutions is the stronger option for design transfer into global contract manufacturing. The right choice depends on your project size, budget, and required tech stack.
Phillips-Medisize vs Flex Health Solutions: head-to-head summary
| Criterion | Phillips-Medisize | Flex Health Solutions |
|---|---|---|
| Founded | 1964 | 1969 |
| HQ | Hudson, WI, USA | Austin, TX, USA / Singapore |
| Team size | ~7,000 | Large (Flex Ltd.) |
| Rating | 3.9 / 5 | 3.8 / 5 |
| Primary differentiator | Design, molding and assembly of drug delivery devices under one global quality system | Dedicated NPI center and design sites that feed directly into Flex's medical manufacturing network |
| Pricing model | Development contract plus manufacturing supply agreement | Manufacturing supply agreement, NPI contract |
| Min. engagement | Not disclosed | Not disclosed |
| Primary tech stack | Injection molding, Automated assembly, BLE | PCB assembly, Injection molding, Automated assembly |
| Industries served | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
Phillips-Medisize vs Flex Health Solutions: overview
Phillips-Medisize
Phillips-Medisize is a subsidiary of Molex, itself owned by Koch Industries, and provides outsourced design, development and manufacturing to pharma, diagnostics and medical device companies. It is based in Wisconsin and has about 7,000 employees. Molex's purchase of inhalation specialist Vectura added combination-product expertise, and the combined team includes more than 1,200 engineers and scientists across 30 sites. A $110M manufacturing campus in Katowice, Poland, opened in November 2023.
Flex Health Solutions
Flex Health Solutions is the healthcare division of Flex Ltd. and operates as a contract development and manufacturing organization (CDMO) for medical devices and pharma. Flex lists 26 manufacturing sites, six design and engineering sites, 16 FDA-registered entities and 21 ISO 13485 sites for health (per company website; independently unverifiable). In 2025 it opened a North American new product introduction (NPI) center for healthcare customers, and it shared a 2025 PDA Drug Delivery Innovation Award with Merck KGaA for an autoinjector.
Services and capabilities: Phillips-Medisize vs Flex Health Solutions
| Capability | Phillips-Medisize | Flex Health Solutions |
|---|---|---|
| Electronics & PCB design | ✓ | ✓ |
| Firmware & embedded software | ✗ | ✗ |
| SaMD & companion apps | ✗ | ✗ |
| Connected devices & IoT | ✗ | ✗ |
| Industrial design & human factors | ✗ | ✗ |
| Mechanical engineering | ✓ | ✓ |
| Device cybersecurity | ✗ | ✗ |
| Regulatory & QMS support | ✓ | ✓ |
| Manufacturing & scale-up | ✓ | ✓ |
Tech stack comparison: Phillips-Medisize vs Flex Health Solutions
| Framework / platform | Phillips-Medisize | Flex Health Solutions |
|---|---|---|
| Embedded C/C++ | N/A | N/A |
| Embedded Linux | N/A | N/A |
| RTOS | N/A | N/A |
| BLE | ✓ | N/A |
| Cloud (AWS/Azure) | N/A | N/A |
| IEC 62304 | N/A | N/A |
| ISO 14971 | N/A | N/A |
| ISO 13485 QMS | ✓ | ✓ |
| Qt | N/A | N/A |
Pricing comparison: Phillips-Medisize vs Flex Health Solutions
| Criterion | Phillips-Medisize | Flex Health Solutions |
|---|---|---|
| Minimum engagement | Not disclosed | Not disclosed |
| Engagement models | Fixed project, Manufacturing contract | Fixed project, Manufacturing contract |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Phillips-Medisize vs Flex Health Solutions
| Dimension | Phillips-Medisize | Flex Health Solutions |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
| Best use cases | Autoinjector or pen injector development and production, Inhaler device for a pharma combination product | Transferring a verified design into volume production, Pre-clinical and design verification builds |
| Typical project type | Fixed project | Fixed project |
Phillips-Medisize vs Flex Health Solutions: pros and cons
| Phillips-Medisize | |
|---|---|
| + | Very large manufacturing footprint across the US, Europe and Asia |
| + | Vectura deal added deep inhalation and combination-product skills |
| + | Development and manufacturing under one quality system |
| + | Experience with connected drug delivery |
| - | Owned by Molex and Koch Industries, so it suits large pharma more than small startups |
| - | Development work is usually tied to a manufacturing agreement |
| - | Less suited to software-heavy or early research projects |
| Flex Health Solutions | |
|---|---|
| + | Large global network of ISO 13485 and FDA-registered sites |
| + | New NPI center supports prototype builds, design verification and production transfer |
| + | Award-winning drug delivery work with Merck KGaA |
| + | Handles sterilization and packaging in-house |
| - | Development work mainly exists to feed programs into Flex factories |
| - | Better for funded programs with a clear path to volume |
| - | Site counts are company-reported and differ across Flex pages |
Who should choose Phillips-Medisize?
A typical fit: autoinjector or pen injector development and production.
Design, molding and assembly of drug delivery devices under one global quality system. Minimum engagement is not publicly disclosed. Works best with clients in Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices.
Who should choose Flex Health Solutions?
A typical fit: transferring a verified design into volume production.
Dedicated NPI center and design sites that feed directly into Flex's medical manufacturing network. Minimum engagement is not publicly disclosed. Works best with clients in Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices.
Decision matrix: Phillips-Medisize vs Flex Health Solutions
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Phillips-Medisize |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: Phillips-Medisize (Not disclosed) vs Flex Health Solutions (Not disclosed) |
| You need specialist depth in a specific vertical | Phillips-Medisize |
| You need staff augmentation or team extension | Neither; consider alternatives that offer staff aug |
| You need consulting before committing to a build | Both may offer discovery engagements |
Use case fit: Phillips-Medisize vs Flex Health Solutions
| Use case | Phillips-Medisize fit | Flex Health Solutions fit | Winner |
|---|---|---|---|
| Autoinjector or pen injector development and production | Strong | Strong | Both equally |
| Inhaler device for a pharma combination product | Strong | Limited | Phillips-Medisize |
| Transferring a verified design into volume production | Limited | Strong | Flex Health Solutions |
| Pre-clinical and design verification builds | Limited | Strong | Flex Health Solutions |
Verdict: Phillips-Medisize vs Flex Health Solutions
Phillips-Medisize (3.9/5) is the stronger overall choice for most Medical Device Development projects. Design, molding and assembly of drug delivery devices under one global quality system.
Flex Health Solutions (3.8/5) is worth a look if you need pre-clinical and design verification builds. If your situation matches that, Flex Health Solutions is a competitive option.
Related comparisons
Phillips-Medisize vs Flex Health Solutions FAQ
Is Phillips-Medisize better than Flex Health Solutions?
Phillips-Medisize (3.9/5) scores higher overall, but "better" depends on your use case. Phillips-Medisize's strongest advantage: very large manufacturing footprint across the US, Europe and Asia. Flex Health Solutions's strongest advantage: large global network of ISO 13485 and FDA-registered sites.
How do Phillips-Medisize and Flex Health Solutions differ in pricing?
Phillips-Medisize uses development contract plus manufacturing supply agreement pricing. Flex Health Solutions uses manufacturing supply agreement, npi contract pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Phillips-Medisize or Flex Health Solutions?
Phillips-Medisize is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.
What are the main differences between Phillips-Medisize and Flex Health Solutions?
Phillips-Medisize's primary differentiator is: Design, molding and assembly of drug delivery devices under one global quality system. Flex Health Solutions's primary differentiator is: dedicated NPI center and design sites that feed directly into Flex's medical manufacturing network. They also differ in team size (~7,000 vs Large (Flex Ltd.)), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Drug delivery, Diagnostics & lab devices vs Drug delivery, Diagnostics & lab devices).
Verify all details directly with each company before making a decision.