Best Medical Device Development Companies

Velentium vs S3 Connected Health: full comparison for 2026

Quick verdict

Velentium (4.5/5) edges ahead of S3 Connected Health (4.2/5) overall. Velentium is the better choice for implantables and FDA cybersecurity submissions. S3 Connected Health is the stronger option for pharma companies adding connectivity to drug delivery. The right choice depends on your project size, budget, and required tech stack.

Velentium vs S3 Connected Health: head-to-head summary

Criterion Velentium S3 Connected Health
Founded 2012 2001
HQ Katy, TX, USA Dublin, Ireland
Team size 51–250 200–300
Rating 4.5 / 5 4.2 / 5
Primary differentiator Combines active-implantable engineering with a dedicated device cybersecurity team that prepares FDA premarket security documentation Combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs
Pricing model Fixed project, time and materials, manufacturing contract Fixed project, time and materials, managed service
Min. engagement Not disclosed Not disclosed
Primary tech stack Embedded C/C++, RTOS, BLE BLE, Embedded C/C++, iOS
Industries served Implantables & neuromodulation, Surgical & therapeutic devices, Wearables & remote monitoring Drug delivery, Digital health, Wearables & remote monitoring

Velentium vs S3 Connected Health: overview

Velentium

Velentium was founded in 2012 and is based in Katy, near Houston, Texas. It designs, develops and manufactures active medical devices, including implantables and their programmers, and offers systems engineering, firmware, software, cybersecurity and CGMP manufacturing. Great Point Partners completed a growth recapitalization in 2021, the company sold its oil and gas division in 2023 to focus fully on medtech, and it took $15M in growth financing from Trinity Capital in 2024. Headcount estimates range from 51 to 250.

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.

Services and capabilities: Velentium vs S3 Connected Health

Capability Velentium S3 Connected Health
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: Velentium vs S3 Connected Health

Framework / platform Velentium S3 Connected Health
Embedded C/C++ ✓ ✓
Embedded Linux N/A N/A
RTOS ✓ N/A
BLE ✓ ✓
Cloud (AWS/Azure) N/A ✓
IEC 62304 ✓ ✓
ISO 14971 ✓ N/A
ISO 13485 QMS N/A N/A
Qt N/A N/A

Pricing comparison: Velentium vs S3 Connected Health

Criterion Velentium S3 Connected Health
Minimum engagement Not disclosed Not disclosed
Engagement models Fixed project, Manufacturing contract, Time & materials Dedicated team, Fixed project, Time & materials
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Velentium vs S3 Connected Health

Dimension Velentium S3 Connected Health
Best company size Startup to mid-market Startup to mid-market
Best industries Implantables & neuromodulation, Surgical & therapeutic devices, Wearables & remote monitoring Drug delivery, Digital health, Wearables & remote monitoring
Best use cases Building a neurostimulator and its clinician programmer, Preparing the cybersecurity section of an FDA 510(k) or PMA Adding Bluetooth connectivity to an autoinjector, Building a patient adherence app and backend
Typical project type Fixed project Dedicated team

Velentium vs S3 Connected Health: pros and cons

Velentium
+ Cybersecurity is a full practice here, covering threat modeling, SBOMs, testing and postmarket monitoring
+ Experience with active implantable devices, one of the hardest device categories to engineer and certify
+ Can manufacture Class II and III devices after development, reducing transfer risk
+ Offers training on device cybersecurity, which helps client teams keep up after hand-off
- Private-equity recapitalization and debt financing mean ownership priorities may shift over time
- Smaller than the large consultancies, so very broad programs may stretch the team
- Industrial design and human factors are not its main strength
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

Who should choose Velentium?

A typical fit: building a neurostimulator and its clinician programmer.

Combines active-implantable engineering with a dedicated device cybersecurity team that prepares FDA premarket security documentation. Minimum engagement is not publicly disclosed. Works best with clients in Implantables & neuromodulation, Surgical & therapeutic devices, Wearables & remote monitoring.

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.

Decision matrix: Velentium vs S3 Connected Health

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Velentium
You need a large dedicated team for an ongoing programme S3 Connected Health
Your budget is at the lower end Compare: Velentium (Not disclosed) vs S3 Connected Health (Not disclosed)
You need specialist depth in a specific vertical Velentium
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: Velentium vs S3 Connected Health

Use case Velentium fit S3 Connected Health fit Winner
Building a neurostimulator and its clinician programmer Strong Strong Both equally
Preparing the cybersecurity section of an FDA 510(k) or PMA Strong Limited Velentium
Adding Bluetooth connectivity to an autoinjector Limited Strong S3 Connected Health
Building a patient adherence app and backend Strong Strong Both equally

Verdict: Velentium vs S3 Connected Health

Velentium (4.5/5) is the stronger overall choice for most Medical Device Development projects. Combines active-implantable engineering with a dedicated device cybersecurity team that prepares FDA premarket security documentation.

S3 Connected Health (4.2/5) is worth a look if you need building a patient adherence app and backend. If your situation matches that, S3 Connected Health is a competitive option.

Related comparisons

Velentium vs S3 Connected Health FAQ

Is Velentium better than S3 Connected Health?

Velentium (4.5/5) scores higher overall, but "better" depends on your use case. Velentium's strongest advantage: cybersecurity is a full practice here, covering threat modeling, SBOMs, testing and postmarket monitoring. S3 Connected Health's strongest advantage: long experience in wireless and embedded software from its S3 Group background.

How do Velentium and S3 Connected Health differ in pricing?

Velentium uses fixed project, time and materials, manufacturing contract pricing. S3 Connected Health uses fixed project, time and materials, managed service pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Velentium or S3 Connected Health?

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 Velentium and S3 Connected Health?

Velentium's primary differentiator is: combines active-implantable engineering with a dedicated device cybersecurity team that prepares FDA premarket security documentation. S3 Connected Health's primary differentiator is: combines embedded wireless engineering with patient-facing apps and data platforms for pharma programs. They also differ in team size (51–250 vs 200–300), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Implantables & neuromodulation, Surgical & therapeutic devices vs Drug delivery, Digital health).

Verify all details directly with each company before making a decision.