Best Medical Device Development Companies

Planet Innovation vs Plexus: full comparison for 2026

Quick verdict

Planet Innovation (4.2/5) edges ahead of Plexus (3.8/5) overall. Planet Innovation is the better choice for diagnostics companies in Asia-Pacific and the US. Plexus is the stronger option for complex capital equipment needing build and sustaining. The right choice depends on your project size, budget, and required tech stack.

Planet Innovation vs Plexus: head-to-head summary

Criterion Planet Innovation Plexus
Founded 2009 1979
HQ Box Hill, Victoria, Australia Neenah, WI, USA
Team size 300–400 ~20,000
Rating 4.2 / 5 3.8 / 5
Primary differentiator Diagnostics roots plus product and commercialization experience in Australia and the US Engineering, NPI and sustaining services for low-to-mid volume, high-complexity medical equipment
Pricing model Fixed project, time and materials NPI contract, manufacturing supply agreement
Min. engagement Not disclosed Not disclosed
Primary tech stack Embedded C/C++, Cloud (AWS/Azure), Microfluidics PCB design, PCB assembly, Embedded C/C++
Industries served Diagnostics & lab devices, Digital health, Wearables & remote monitoring Surgical & robotics, Diagnostics & lab devices, Aerospace, Industrial

Planet Innovation vs Plexus: overview

Planet Innovation

Planet Innovation was founded in Melbourne in 2009 by four diagnostics industry specialists: Eduardo Vom, Sam Lanyon, Stuart Elliott and Troy O'Callaghan. It is headquartered in Box Hill, Victoria, with a facility in Irvine, California, and employs roughly 300 to 390 people depending on the source. The company has focused on regulated medical devices since 2016 and works across diagnostics, medical devices, biotechnology and connected health, including some product ventures of its own.

Plexus

Plexus Corp. is a NASDAQ-listed company headquartered in Neenah, Wisconsin, that offers design and development, supply chain, new product introduction, manufacturing and sustaining services. Healthcare and life sciences is one of its three markets alongside aerospace and defense and industrial. Its healthcare work includes surgical equipment, imaging equipment and diagnostic instruments. The company has around 20,000 employees in total, though only part of that is healthcare.

Services and capabilities: Planet Innovation vs Plexus

Capability Planet Innovation Plexus
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: Planet Innovation vs Plexus

Framework / platform Planet Innovation Plexus
Embedded C/C++ ✓ ✓
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 N/A
ISO 14971 N/A N/A
ISO 13485 QMS ✓ ✓
Qt N/A N/A

Pricing comparison: Planet Innovation vs Plexus

Criterion Planet Innovation Plexus
Minimum engagement Not disclosed Not disclosed
Engagement models Fixed project, Manufacturing contract, Time & materials Fixed project, Manufacturing contract
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Planet Innovation vs Plexus

Dimension Planet Innovation Plexus
Best company size Startup to mid-market Startup to mid-market
Best industries Diagnostics & lab devices, Digital health, Wearables & remote monitoring Surgical & robotics, Diagnostics & lab devices, Aerospace
Best use cases Developing a connected point-of-care diagnostic, Commercialization planning for an Australian medtech startup Building and sustaining a diagnostic imaging subsystem, Electronics redesign for component obsolescence
Typical project type Fixed project Fixed project

Planet Innovation vs Plexus: pros and cons

Planet Innovation
+ Founders came from the diagnostics industry, and diagnostics is still its strongest area
+ Has launched products of its own, so it understands commercialization as well as engineering
+ Australian base offers time-zone coverage for Asia-Pacific clients
+ Irvine facility serves US clients locally
- Runs its own product ventures, so ask how client work is prioritized
- Less known in Europe
- Headcount and certifications should be confirmed directly
Plexus
+ Strong with complex, lower-volume capital equipment such as imaging and surgical systems
+ Offers product engineering as well as manufacturing
+ Sustaining engineering over long product lives
+ Public company with transparent financial reporting
- Generalist manufacturer; healthcare competes with aerospace and industrial for capacity
- Not a fit for early-stage concept work
- Most engineering engagements lead toward a manufacturing contract

Who should choose Planet Innovation?

A typical fit: developing a connected point-of-care diagnostic.

Diagnostics roots plus product and commercialization experience in Australia and the US. Minimum engagement is not publicly disclosed. Works best with clients in Diagnostics & lab devices, Digital health, Wearables & remote monitoring.

Who should choose Plexus?

A typical fit: building and sustaining a diagnostic imaging subsystem.

Engineering, NPI and sustaining services for low-to-mid volume, high-complexity medical equipment. Minimum engagement is not publicly disclosed. Works best with clients in Surgical & robotics, Diagnostics & lab devices, Aerospace, Industrial.

Decision matrix: Planet Innovation vs Plexus

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Planet Innovation
You need a large dedicated team for an ongoing programme Check each company's engagement model
Your budget is at the lower end Compare: Planet Innovation (Not disclosed) vs Plexus (Not disclosed)
You need specialist depth in a specific vertical Plexus
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: Planet Innovation vs Plexus

Use case Planet Innovation fit Plexus fit Winner
Developing a connected point-of-care diagnostic Strong Limited Planet Innovation
Commercialization planning for an Australian medtech startup Strong Limited Planet Innovation
Building and sustaining a diagnostic imaging subsystem Limited Strong Plexus
Electronics redesign for component obsolescence Limited Strong Plexus

Verdict: Planet Innovation vs Plexus

Planet Innovation (4.2/5) is the stronger overall choice for most Medical Device Development projects. Diagnostics roots plus product and commercialization experience in Australia and the US.

Plexus (3.8/5) is worth a look if you need electronics redesign for component obsolescence. If your situation matches that, Plexus is a competitive option.

Related comparisons

Planet Innovation vs Plexus FAQ

Is Planet Innovation better than Plexus?

Planet Innovation (4.2/5) scores higher overall, but "better" depends on your use case. Planet Innovation's strongest advantage: founders came from the diagnostics industry, and diagnostics is still its strongest area. Plexus's strongest advantage: strong with complex, lower-volume capital equipment such as imaging and surgical systems.

How do Planet Innovation and Plexus differ in pricing?

Planet Innovation uses fixed project, time and materials pricing. Plexus uses npi contract, manufacturing supply agreement pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Planet Innovation or Plexus?

Planet Innovation 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 Planet Innovation and Plexus?

Planet Innovation's primary differentiator is: diagnostics roots plus product and commercialization experience in Australia and the US. Plexus's primary differentiator is: Engineering, NPI and sustaining services for low-to-mid volume, high-complexity medical equipment. They also differ in team size (300–400 vs ~20,000), minimum engagement (Not disclosed vs Not disclosed), and primary industries served (Diagnostics & lab devices, Digital health vs Surgical & robotics, Diagnostics & lab devices).

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