MedAcuity vs Flex Health Solutions: full comparison for 2026
Quick verdict
MedAcuity (4.3/5) edges ahead of Flex Health Solutions (3.8/5) overall. MedAcuity is the better choice for device makers with hardware but no software team. 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.
MedAcuity vs Flex Health Solutions: head-to-head summary
| Criterion | MedAcuity | Flex Health Solutions |
|---|---|---|
| Founded | 2007 | 1969 |
| HQ | Westford, MA, USA | Austin, TX, USA / Singapore |
| Team size | 100–130 | Large (Flex Ltd.) |
| Rating | 4.3 / 5 | 3.8 / 5 |
| Primary differentiator | US-based, ISO 13485 certified team that does nothing but regulated device software | 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++, C#/.NET, Qt | PCB assembly, Injection molding, Automated assembly |
| Industries served | Surgical & robotics, Diagnostics & lab devices, Digital health, Implantables & neuromodulation | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
MedAcuity vs Flex Health Solutions: overview
MedAcuity
MedAcuity was founded in 2007 by software engineers and is based in Westford, Massachusetts. It concentrates on medical technology software: architecture, embedded and application development, risk management and the technical documentation behind FDA submissions, with experience across Class I, II and III and PMA devices. It is ISO 13485:2016 certified, and listings put its team at about 119 people. In 2021 it partnered with Fathom Consulting to add human factors engineering.
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: MedAcuity vs Flex Health Solutions
| Capability | MedAcuity | 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: MedAcuity vs Flex Health Solutions
| Framework / platform | MedAcuity | 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 |
| ISO 13485 QMS | N/A | ✓ |
| Qt | ✓ | N/A |
Pricing comparison: MedAcuity vs Flex Health Solutions
| Criterion | MedAcuity | 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: MedAcuity vs Flex Health Solutions
| Dimension | MedAcuity | Flex Health Solutions |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Surgical & robotics, Diagnostics & lab devices, Digital health | Drug delivery, Diagnostics & lab devices, Surgical & therapeutic devices |
| Best use cases | Writing and documenting the control software for a surgical system, Remediating software documentation gaps before an FDA submission | Transferring a verified design into volume production, Pre-clinical and design verification builds |
| Typical project type | Fixed project | Fixed project |
MedAcuity vs Flex Health Solutions: pros and cons
| MedAcuity | |
|---|---|
| + | Software-only focus means IEC 62304 documentation and traceability are part of every project |
| + | Experience with PMA-level Class III software |
| + | US onshore team helps with data access and IP-sensitive programs |
| + | Secure lab space for testing with client hardware |
| - | Does not design hardware, so you need another partner for electronics and mechanics |
| - | US onshore rates are higher than nearshore software teams |
| - | Human factors work is handled through the Fathom partnership instead of an in-house group |
| 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 MedAcuity?
A typical fit: writing and documenting the control software for a surgical system.
US-based, ISO 13485 certified team that does nothing but regulated device software. Minimum engagement is not publicly disclosed. Works best with clients in Surgical & robotics, Diagnostics & lab devices, Digital health, Implantables & neuromodulation.
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: MedAcuity vs Flex Health Solutions
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | MedAcuity |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: MedAcuity (Not disclosed) vs Flex Health Solutions (Not disclosed) |
| You need specialist depth in a specific vertical | MedAcuity |
| 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: MedAcuity vs Flex Health Solutions
| Use case | MedAcuity fit | Flex Health Solutions fit | Winner |
|---|---|---|---|
| Writing and documenting the control software for a surgical system | Strong | Limited | MedAcuity |
| Remediating software documentation gaps before an FDA submission | Strong | Limited | MedAcuity |
| Transferring a verified design into volume production | Limited | Strong | Flex Health Solutions |
| Pre-clinical and design verification builds | Limited | Strong | Flex Health Solutions |
Verdict: MedAcuity vs Flex Health Solutions
MedAcuity (4.3/5) is the stronger overall choice for most Medical Device Development projects. US-based, ISO 13485 certified team that does nothing but regulated device software.
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
MedAcuity vs Flex Health Solutions FAQ
Is MedAcuity better than Flex Health Solutions?
MedAcuity (4.3/5) scores higher overall, but "better" depends on your use case. MedAcuity's strongest advantage: software-only focus means IEC 62304 documentation and traceability are part of every project. Flex Health Solutions's strongest advantage: large global network of ISO 13485 and FDA-registered sites.
How do MedAcuity and Flex Health Solutions differ in pricing?
MedAcuity 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: MedAcuity or Flex Health Solutions?
MedAcuity 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 MedAcuity and Flex Health Solutions?
MedAcuity's primary differentiator is: US-based, ISO 13485 certified team that does nothing but regulated device software. 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 (100–130 vs Large (Flex Ltd.)), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Surgical & robotics, Diagnostics & lab devices vs Drug delivery, Diagnostics & lab devices).
Verify all details directly with each company before making a decision.