Promenade Software vs Flex Health Solutions: full comparison for 2026
Quick verdict
Promenade Software (4.1/5) edges ahead of Flex Health Solutions (3.8/5) overall. Promenade Software is the better choice for small device makers needing software and security. 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.
Promenade Software vs Flex Health Solutions: head-to-head summary
| Criterion | Promenade Software | Flex Health Solutions |
|---|---|---|
| Founded | 2013 | 1969 |
| HQ | Irvine, CA, USA | Austin, TX, USA / Singapore |
| Team size | 11–50 | Large (Flex Ltd.) |
| Rating | 4.1 / 5 | 3.8 / 5 |
| Primary differentiator | Pairs contract device software with its own medical cybersecurity tooling and information-sharing service | Dedicated NPI center and design sites that feed directly into Flex's medical manufacturing network |
| Pricing model | Time and materials, fixed project | Manufacturing supply agreement, NPI contract |
| Min. engagement | Not disclosed | Not disclosed |
| Primary tech stack | Embedded C/C++, Cloud (AWS/Azure), IEC 62304 | PCB assembly, Injection molding, Automated assembly |
| Industries served | Surgical & therapeutic devices, Digital health, Diagnostics & lab devices | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
Promenade Software vs Flex Health Solutions: overview
Promenade Software
Since 2013 this Irvine, California, company has developed software for medical devices, from low-level firmware to cloud services, along with postmarket support. Directory listings say it follows IEC 62304 and holds ISO 13485:2016 and ISO 9001:2015 certification. It has also built cybersecurity products for the industry, including CyberMed Cloud and the MedISAO information-sharing service. The team is small, with estimates of 11 to 50 people.
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: Promenade Software vs Flex Health Solutions
| Capability | Promenade Software | 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: Promenade Software vs Flex Health Solutions
| Framework / platform | Promenade Software | Flex Health Solutions |
|---|---|---|
| Embedded C/C++ | ✓ | N/A |
| Embedded Linux | N/A | N/A |
| RTOS | N/A | N/A |
| BLE | N/A | N/A |
| Cloud (AWS/Azure) | ✓ | N/A |
| IEC 62304 | ✓ | N/A |
| ISO 14971 | N/A | N/A |
| ISO 13485 QMS | N/A | ✓ |
| Qt | N/A | N/A |
Pricing comparison: Promenade Software vs Flex Health Solutions
| Criterion | Promenade Software | Flex Health Solutions |
|---|---|---|
| Minimum engagement | Not disclosed | Not disclosed |
| Engagement models | Fixed project, Time & materials | Fixed project, Manufacturing contract |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Promenade Software vs Flex Health Solutions
| Dimension | Promenade Software | Flex Health Solutions |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Surgical & therapeutic devices, Digital health, Diagnostics & lab devices | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
| Best use cases | Firmware and cloud software for an early-stage device, Building SBOM and vulnerability monitoring for a cleared device | Transferring a verified design into volume production, Pre-clinical and design verification builds |
| Typical project type | Fixed project | Fixed project |
Promenade Software vs Flex Health Solutions: pros and cons
| Promenade Software | |
|---|---|
| + | Software-only, ISO 13485 certified team that knows FDA expectations |
| + | Owns cybersecurity products, so security work comes with tooling |
| + | Small team keeps costs and overhead down for startups |
| + | Southern California location close to the Orange County medtech cluster |
| - | Very small, so capacity for large programs is limited |
| - | No hardware or mechanical design |
| - | Certifications come from directory listings and should be confirmed with the company |
| 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 Promenade Software?
A typical fit: firmware and cloud software for an early-stage device.
Pairs contract device software with its own medical cybersecurity tooling and information-sharing service. Minimum engagement is not publicly disclosed. Works best with clients in Surgical & therapeutic devices, Digital health, Diagnostics & lab 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: Promenade Software vs Flex Health Solutions
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Promenade Software |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: Promenade Software (Not disclosed) vs Flex Health Solutions (Not disclosed) |
| You need specialist depth in a specific vertical | Promenade Software |
| 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: Promenade Software vs Flex Health Solutions
| Use case | Promenade Software fit | Flex Health Solutions fit | Winner |
|---|---|---|---|
| Firmware and cloud software for an early-stage device | Strong | Limited | Promenade Software |
| Building SBOM and vulnerability monitoring for a cleared device | Strong | Limited | Promenade Software |
| Transferring a verified design into volume production | Limited | Strong | Flex Health Solutions |
| Pre-clinical and design verification builds | Limited | Strong | Flex Health Solutions |
Verdict: Promenade Software vs Flex Health Solutions
Promenade Software (4.1/5) is the stronger overall choice for most Medical Device Development projects. Pairs contract device software with its own medical cybersecurity tooling and information-sharing service.
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
Promenade Software vs Flex Health Solutions FAQ
Is Promenade Software better than Flex Health Solutions?
Promenade Software (4.1/5) scores higher overall, but "better" depends on your use case. Promenade Software's strongest advantage: Software-only, ISO 13485 certified team that knows FDA expectations. Flex Health Solutions's strongest advantage: large global network of ISO 13485 and FDA-registered sites.
How do Promenade Software and Flex Health Solutions differ in pricing?
Promenade Software uses time and materials, fixed project 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: Promenade Software or Flex Health Solutions?
Promenade Software 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 Promenade Software and Flex Health Solutions?
Promenade Software's primary differentiator is: pairs contract device software with its own medical cybersecurity tooling and information-sharing service. 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 (11–50 vs Large (Flex Ltd.)), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Surgical & therapeutic devices, Digital health vs Drug delivery, Diagnostics & lab devices).
Verify all details directly with each company before making a decision.