S3 Connected Health vs Promenade Software: full comparison for 2026
Quick verdict
S3 Connected Health (4.2/5) edges ahead of Promenade Software (4.1/5) overall. S3 Connected Health is the better choice for pharma companies adding connectivity to drug delivery. Promenade Software is the stronger option for small device makers needing software and security. The right choice depends on your project size, budget, and required tech stack.
S3 Connected Health vs Promenade Software: head-to-head summary
| Criterion | S3 Connected Health | Promenade Software |
|---|---|---|
| Founded | 2001 | 2013 |
| HQ | Dublin, Ireland | Irvine, CA, USA |
| Team size | 200–300 | 11–50 |
| Rating | 4.2 / 5 | 4.1 / 5 |
| Primary differentiator | Combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs | Pairs contract device software with its own medical cybersecurity tooling and information-sharing service |
| Pricing model | Fixed project, time and materials, managed service | Time and materials, fixed project |
| Min. engagement | Not disclosed | Not disclosed |
| Primary tech stack | BLE, Embedded C/C++, iOS | Embedded C/C++, Cloud (AWS/Azure), IEC 62304 |
| Industries served | Drug delivery, Digital health, Wearables & remote monitoring | Surgical & therapeutic devices, Digital health, Diagnostics & lab devices |
S3 Connected Health vs Promenade Software: overview
S3 Connected Health
S3 Connected Health is the connected health business of Dublin's S3 Group (Silicon & Software Systems), which dates to 1986; the connected health unit itself is listed as founded around 2001. After the group sold its semiconductor unit to Adesto, it concentrated on this business. It works with pharma and medtech companies on connected drug delivery, SaMD, IoMT platforms, wireless connectivity and data security, and partnered with Ypsomed on connected injection devices. Employee figures range from about 200 to 300.
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.
Services and capabilities: S3 Connected Health vs Promenade Software
| Capability | S3 Connected Health | Promenade Software |
|---|---|---|
| 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: S3 Connected Health vs Promenade Software
| Framework / platform | S3 Connected Health | Promenade Software |
|---|---|---|
| Embedded C/C++ | ✓ | ✓ |
| Embedded Linux | N/A | N/A |
| RTOS | N/A | N/A |
| BLE | ✓ | N/A |
| Cloud (AWS/Azure) | ✓ | ✓ |
| IEC 62304 | ✓ | ✓ |
| ISO 14971 | N/A | N/A |
| ISO 13485 QMS | N/A | N/A |
| Qt | N/A | N/A |
Pricing comparison: S3 Connected Health vs Promenade Software
| Criterion | S3 Connected Health | Promenade Software |
|---|---|---|
| Minimum engagement | Not disclosed | Not disclosed |
| Engagement models | Dedicated team, Fixed project, Time & materials | Fixed project, Time & materials |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: S3 Connected Health vs Promenade Software
| Dimension | S3 Connected Health | Promenade Software |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Drug delivery, Digital health, Wearables & remote monitoring | Surgical & therapeutic devices, Digital health, Diagnostics & lab devices |
| Best use cases | Adding Bluetooth connectivity to an autoinjector, Building a patient adherence app and backend | Firmware and cloud software for an early-stage device, Building SBOM and vulnerability monitoring for a cleared device |
| Typical project type | Dedicated team | Fixed project |
S3 Connected Health vs Promenade Software: pros and cons
| S3 Connected Health | |
|---|---|
| + | Long experience in wireless and embedded software from its S3 Group background |
| + | Works directly with pharma on connected injectors and inhalers, such as the Ypsomed partnership |
| + | Covers apps, cloud and the device connectivity module |
| + | Delivery team includes a site in Poland, which helps with cost |
| - | Founding date and history are tangled with the wider S3 Group, so check which entity you contract with |
| - | Not a mechanical or industrial design firm |
| - | Pharma focus means pure medtech hardware projects are less common |
| 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 |
Who should choose S3 Connected Health?
A typical fit: adding Bluetooth connectivity to an autoinjector.
Combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs. Minimum engagement is not publicly disclosed. Works best with clients in Drug delivery, Digital health, Wearables & remote monitoring.
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.
Decision matrix: S3 Connected Health vs Promenade Software
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | S3 Connected Health |
| You need a large dedicated team for an ongoing programme | S3 Connected Health |
| Your budget is at the lower end | Compare: S3 Connected Health (Not disclosed) vs Promenade Software (Not disclosed) |
| You need specialist depth in a specific vertical | S3 Connected Health |
| 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: S3 Connected Health vs Promenade Software
| Use case | S3 Connected Health fit | Promenade Software fit | Winner |
|---|---|---|---|
| Adding Bluetooth connectivity to an autoinjector | Strong | Limited | S3 Connected Health |
| Building a patient adherence app and backend | Strong | Strong | Both equally |
| Firmware and cloud software for an early-stage device | Limited | Strong | Promenade Software |
| Building SBOM and vulnerability monitoring for a cleared device | Strong | Strong | Both equally |
Verdict: S3 Connected Health vs Promenade Software
S3 Connected Health (4.2/5) is the stronger overall choice for most Medical Device Development projects. Combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs.
Promenade Software (4.1/5) is worth a look if you need building SBOM and vulnerability monitoring for a cleared device. If your situation matches that, Promenade Software is a competitive option.
Related comparisons
S3 Connected Health vs Promenade Software FAQ
Is S3 Connected Health better than Promenade Software?
S3 Connected Health (4.2/5) scores higher overall, but "better" depends on your use case. S3 Connected Health's strongest advantage: long experience in wireless and embedded software from its S3 Group background. Promenade Software's strongest advantage: Software-only, ISO 13485 certified team that knows FDA expectations.
How do S3 Connected Health and Promenade Software differ in pricing?
S3 Connected Health uses fixed project, time and materials, managed service pricing. Promenade Software uses time and materials, fixed project pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: S3 Connected Health or Promenade Software?
S3 Connected Health 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 S3 Connected Health and Promenade Software?
S3 Connected Health's primary differentiator is: combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs. Promenade Software's primary differentiator is: pairs contract device software with its own medical cybersecurity tooling and information-sharing service. They also differ in team size (200–300 vs 11–50), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Drug delivery, Digital health vs Surgical & therapeutic devices, Digital health).
Verify all details directly with each company before making a decision.