7 Top Medical Device Software Development Companies to Take Your Device From Idea to Market

Medical device software answers to regulators before it reaches patients. FDA records show 2,500+ medical device recalls in an average year, according to a December 2025 IEEE Spectrum analysis, with software issues among the 5 largest root-cause categories. Software design leads that group.

For a company that needs this software built, the hard part starts before any code. You need to know which stages the work passes through, what each one hands you, and which decisions stay with your team. Without that map, proposals are hard to compare, and gaps surface late.

With the growing adoption of the Internet of Medical Things (IoMT), medical device software development increasingly involves connecting devices to cloud platforms, enabling real-time data exchange, and ensuring secure communication across healthcare systems.

This guide walks you through each stage of medical device software development, from scoping and risk classification to release and post-market updates. It then profiles 7 top medical device software development companies with the services, compliance coverage, and delivered projects you can check against your plans. You will also find a checklist for confirming each stage is complete and answers to the questions buyers raise before kickoff.

Key Takeaways

Medical device software moves through 6 stages: scope and classification, architecture and risk planning, iterative build, verification and validation, submission support, and post-market updates.
Each stage should end with a document your team can review, from the intended use statement to the traceability matrix and test records.
Software issues caused 54 of 462 US medical device recall events in the first half of 2026, second only to device failure, according to Sedgwick’s 2026 US Product Safety and Recall Index. The figure shows that software defects still reach the market often enough to pull devices from use, so the development partner you choose, and the checks they run at every stage, decide whether your device stays on the market.
The 7 top medical device software development companies in this guide are Relevant Software, ScienceSoft, Itransition, Innowise, Softeq, Sigma Software, and SumatoSoft.

How Medical Device Software Development Works, Stage by Stage

Regulators judge the process as much as the product, so every stage of the work leaves evidence behind. Each stage also ends with a decision only your team can make. The 6 stages run in this order:

Scope and Regulatory Classification

The work opens with intended use: who uses the device, on which patients, and for what clinical purpose. From that statement, the team sets the regulatory pathway, such as FDA 510(k), De Novo, or PMA in the US and the MDR class in the EU, plus the IEC 62304 software safety class (A, B, or C). You receive a scope document, a classification rationale, and a first list of requirements.

Architecture and Risk Planning

Engineers split the software into units, map which ones can contribute to harm, and plan controls for each risk under ISO 14971. The team also lists every third-party component, which IEC 62304 calls SOUP, and assesses its risk.

Architecture decisions cover how the device connects to apps, cloud services, and hospital systems such as EHRs. You get an architecture document, a risk management plan, and a traceability matrix that links each requirement to its design and its tests, and your team decides whether to fund the build on that basis.

Iterative Build With Live Documentation

Development runs in short iterations, and each one updates the code and its regulatory records together. Unit tests, code reviews, and risk files move forward with every build, so documentation keeps pace with the product.

You see working software at the end of each iteration and can adjust priorities before the next one starts. Scope changes stay your call, and each change goes through the same risk review as the original plan.

Verification and Validation

Verification checks that the software meets its written requirements, and validation checks that the device meets user needs in real conditions. Testing runs against the requirements specification, with risk-based priorities and usability work under IEC 62366-1.

You receive test protocols, results, and a traceability record that an auditor can follow from any requirement to its proof. Your clinical and quality leads decide when the evidence is strong enough to file.

Submission Support for FDA and CE

The submission package draws on everything the earlier stages produced: requirements, architecture, risk files, test records, and, for connected devices, a cybersecurity plan with an SBOM.

FDA guidance on device software functions sets two documentation levels, Basic and Enhanced, and the risk the software poses decides which one applies. Your vendor prepares the software sections of the technical file and answers reviewer questions about them. Filing stays with you as the manufacturer, since the clearance carries your name.

Release and Post-Market Updates

Launch starts a new phase of work. Every patch, feature, or security fix needs a change assessment, regression testing, and updated records, and some changes require a new submission. Field data from complaints, logs, and device telemetry feeds back into the risk file. You decide which updates ship and when, based on the impact analysis your vendor prepares.

Top Medical Device Software Development Companies

The 7 companies in this list build software for medical devices, from SaMD to connected wearables and IoMT products.

The table puts their founding year, Clutch rating, device software scope, compliance, and delivered device projects side by side, so you can narrow the field before the first vendor call.

Each profile then shows where the company works along the device path, which lets you match their scope to the stages in your own plan.

1. Relevant Software

AI-assisted delivery (up to 50% faster cycles, up to 20% fewer bugs) · 92% senior engineers · 96% employee retention · ISO 27001 · HIPAA · GDPR

Relevant Software is one of the top medical device software development companies, with connected products across wearables, IoMT devices, and AI features and 200+ projects delivered since 2013.

Where they work along the device path

Scope and design: SaMD and connected device architecture with risk files and traceability built in.
Build: wearable and companion apps with Apple Watch, Wear OS, and HealthKit integration, IoMT connectivity over LTE-M, telemetry pipelines, and AI for diagnostics and imaging.
After launch: post-market updates, revalidation, and change control.

Results on record

Össur prosthetic and orthotic ordering apps with 3D sensor scanning, with measurement and ordering cut from hours to under 5 minutes; an AI medical affairs analytics system for AstraZeneca that automated 35K+ medical records.

2. ScienceSoft

750+ IT experts · ISO 13485 · ISO 27001 · HIPAA

ScienceSoft started in 1989 and builds software for Class II and III medical devices, from SaMD to embedded systems. Their healthcare practice covers connected devices, mobile apps, and AI models.

Where they work along the device path

Scope and design: development under ISO 13485, IEC 62304, and IEC 82304-1, with design history files.
Build: SaMD, embedded and connected device software, mobile apps, AI/ML models, and cloud on AWS, Azure, and Google Cloud.

Results on record

CE-marked laboratory diagnostics software for a genetic screening kit maker, delivered in 7 months; a SaMD imaging web demo with 3,400+ manual test cases and 100% test coverage.

3. Itransition

3,000+ specialists · 86% senior and middle-level · 70% with the company 2+ years · 1,530+ projects

Itransition has delivered software since 1998, and their medical device work spans in-hospital, in-home, and on-body devices. The team reports experience with FDA Class II and III devices and IEC 62304 Classes A, B, and C.

Where they work along the device path

Scope and design: compliance with IEC 62304, FDA 21 CFR Part 820 and Part 11, and HIPAA.
Build: SaMD, IoMT software, mobile apps, and cloud backends.

Results on record

TOMEs, software that connects and monitors blood collection devices for Terumo Blood and Cell Technologies, now in its seventh version; an asthma management app for a respiratory device startup with a 5x lower change failure rate and 30% to 40% less development time.

Facts: 3,000+ specialists

4. Innowise

3,500+ IT professionals · 1,600 projects · 400 customers · 20+ countries · ISO 13485 · ISO 9001 · ISO 27001

Since 2007, Innowise has grown a medical device software practice with 60+ in-house medical software developers. Their work covers SaMD and SiMD for products bound for FDA and MDR markets.

Where they work along the device path

Scope and design: SaMD and SiMD development compliant with FDA, MDR, and IEC 62304 requirements.
Build: embedded software, IoMT and wearable integrations, patient and doctor apps, AI, and cloud.

Results on record

BLE integration of a smart ECG monitor for a medical device company, implemented in 6 weeks after a 5-day project start; an AI wound-monitoring app connected to a Bluetooth thermal camera.

5. Softeq

200+ engineers · 22 locations · NPS 75 · ISO 13485:2016 · ISO 27001:2022 · ISO 9001:2015

Softeq has combined hardware, embedded, and software engineering for medical and IoMT products since 1997. Their healthcare work includes remote patient monitoring and AI.

Where they work along the device path:

Scope and design: hardware and PCB design alongside embedded software for medical devices.
Build: IoMT connectivity, mobile apps, AI/ML, cloud analytics, and remote patient monitoring.

Results on record

A hardware and embedded upgrade for a heart simulator that reached 0.1 ms peak timing accuracy against a 0.5 ms admissible error across 11 modes; a non-invasive glucose sensing prototype for Viit Health that cut the prototyping phase by 25%.

6. Sigma Software

Offices in 22 countries · Fortune 500 clients · ISO 13485 · ISO 9001 · ISO 27001

Sigma Software has provided IT services since 2002 and achieved ISO 13485:2016 certification in January 2025. Their healthcare teams build FDA, EMA, and MHRA requirements into architecture and workflows.

Where they work along the device path

Scope and design: architecture with FDA, HIPAA, and GDPR requirements built in.
Build: device data and cloud analytics, remote patient monitoring analytics, and embedded and IoT engineering.

Results on record

Migration of the Siemens Healthineers CT scanner monitoring and usage analytics platform to Azure, with an 11-person team on the project since April 2023.

7. SumatoSoft

100+ specialists · 70% senior engineers · 350+ solutions delivered · 25+ countries · 98% client satisfaction · ISO 27001 · ISO 9001

Active since 2012, SumatoSoft builds IoMT software, wearable integrations, and mobile companion apps for medical device teams. Their engineers work with ISO 13485, IEC 62304, and ISO 14971 processes.

Where they work along the device path

Scope and design: design history and risk management files for regulated products, plus HIPAA-enabling architecture.
Build: Bluetooth device apps, AI, and cloud backends.

Results on record

A CGM companion app that detects glucose events 60% faster than scheduled manual checks and speeds new-patient setup by 40%; a smart blood pressure cuff app with 20,000+ downloads and 98% user satisfaction.

Common Questions About Hiring a Medical Device Software Partner

CTOs, VPs of Engineering, founders, and regulatory affairs leads tend to raise the same questions before they approve a medical device software budget. Here are answers to 4 of them:

Can You Start With an Existing Prototype?

In most cases, yes. A prototype proves the concept, and its code seldom carries the documentation IEC 62304 expects. Plan for a gap assessment first: the team reviews the code, lists missing requirements and risk records, and decides which parts to keep, refactor, or rebuild. You keep the parts that pass, and the team rebuilds the rest with full traceability.

Do You Need Separate Vendors for Software and Regulatory Work?

Not necessarily. Regulatory files depend on design and test records, so the team that writes the code can produce most of them as the work moves. Ask a vendor which documents they deliver, such as requirements and design specifications, the risk file, and the traceability matrix, and who on their side answers reviewer questions. A regulatory consultant still adds value on pathway strategy and the final filing.

Who Owns Your Code and Documentation at the End?

You should, and the contract needs to say so. The manufacturer carries legal responsibility for the device, so your company needs full rights to source code, design files, risk records, and test evidence. Check that the agreement covers repository access, build scripts, and documentation in editable form. Without them, every future update depends on the original vendor.

How Does AI-Assisted Development Fit Your Regulated Project?

AI tools speed up code drafting, test generation, and documentation updates, while engineers stay responsible for every change. The same rules apply to AI-assisted work as to any other code: review, verification, and traceability. Ask how the vendor records AI use in their process and how senior engineers review the output before it reaches the device.

Conclusion

Medical device software development runs on evidence, and every stage leaves records a regulator can follow. A gap in an early stage returns later as rework or a delayed submission. That is why the partner you choose shapes the whole project.

The top medical device software development companies in this guide each have published medical device work and verified client reviews behind them. Before your first call, use the 6 stages and the exit checks to list what you expect at each step, and bring the buyer questions to see how each team answers them.

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