Bluefruit Software vs Sigma Software: full comparison for 2026
Quick verdict
Bluefruit Software (4.3/5) edges ahead of Sigma Software (4.0/5) overall. Bluefruit Software is the better choice for embedded software for medical and scientific devices. Sigma Software is the stronger option for embedded and cloud teams under Swedish ownership. The right choice depends on your project size, budget, and required tech stack.
Bluefruit Software vs Sigma Software: head-to-head summary
| Criterion | Bluefruit Software | Sigma Software |
|---|---|---|
| Founded | 2000 | 2002 |
| HQ | Redruth, Cornwall, United Kingdom | Stockholm, Sweden and Kyiv, Ukraine |
| Team size | 70–90 | 2,000+ |
| Rating | 4.3 / 5 | 4.0 / 5 |
| Primary differentiator | Employee-owned embedded software team with a strong testing culture | Scandinavian governance with Ukrainian and Polish embedded engineers |
| Pricing model | Time and materials, fixed price | Time and materials, dedicated team, fixed price |
| Min. engagement | Not published | Not published |
| Primary tech stack | Embedded C/C++, RTOS, BLE | Embedded C/C++, Embedded Linux, AWS IoT |
| Industries served | Healthcare and medical devices, Industrial equipment, Scientific instruments, Energy | Automotive, Telecoms, Healthcare, Energy |
Bluefruit Software vs Sigma Software: overview
Bluefruit Software
Paul Massey started Bluefruit Software in 2000, and it has been employee-owned since 2019. Based in Redruth, Cornwall, it employs 70+ developers, testers and user experience specialists. It works on embedded and device software, often for medical, industrial and scientific products, with a strong emphasis on testing. Hardware design is left to the client or a partner.
Sigma Software
Sigma Software was founded in 2002 and is part of the Swedish Sigma group. It describes a team of over 2,100 professionals in offices across 19 countries. Embedded and automotive software are among its practices, alongside a wide range of web, cloud and enterprise work. IoT buyers will find capable firmware and cloud engineers, but not a hardware design house.
Services and capabilities: Bluefruit Software vs Sigma Software
| Capability | Bluefruit Software | Sigma Software |
|---|---|---|
| Electronics & PCB design | ✗ | ✗ |
| Firmware & embedded software | ✓ | ✓ |
| Wireless connectivity | ✓ | ✗ |
| IoT cloud platforms | ✗ | ✓ |
| Mobile & web apps | ✓ | ✓ |
| Edge AI & data | ✗ | ✗ |
| Prototyping & manufacturing support | ✗ | ✗ |
| Dedicated team model | ✗ | ✓ |
Tech stack comparison: Bluefruit Software vs Sigma Software
| Framework / platform | Bluefruit Software | Sigma Software |
|---|---|---|
| Embedded C | ✓ | ✓ |
| Embedded Linux | N/A | ✓ |
| RTOS | ✓ | N/A |
| BLE | ✓ | N/A |
| LoRaWAN | N/A | N/A |
| AWS IoT | N/A | ✓ |
| Azure IoT | N/A | ✓ |
| FPGA | N/A | N/A |
Pricing comparison: Bluefruit Software vs Sigma Software
| Criterion | Bluefruit Software | Sigma Software |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Fixed project, Team extension, Time and materials | Dedicated team, Fixed project, Time and materials |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Bluefruit Software vs Sigma Software
| Dimension | Bluefruit Software | Sigma Software |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Healthcare and medical devices, Industrial equipment, Scientific instruments | Automotive, Telecoms, Healthcare |
| Best use cases | A medical device company needs firmware with documented test coverage., A scientific instrument maker wants device software rewritten. | A telecoms company needs embedded network software., An automotive supplier wants firmware developers. |
| Typical project type | Fixed project | Dedicated team |
Bluefruit Software vs Sigma Software: pros and cons
| Bluefruit Software | |
|---|---|
| + | Employee ownership tends to mean stable teams and low turnover |
| + | Testing and quality are central to how it works |
| + | UK-based team at regional rather than London rates |
| - | No in-house electronics design |
| - | Small team for large or parallel programmes |
| Sigma Software | |
|---|---|
| + | Swedish parent adds governance |
| + | Broad coverage of firmware, cloud and apps |
| + | Competitive rates |
| - | IoT is not its main focus |
| - | No electronics design |
Who should choose Bluefruit Software?
A typical fit: a medical device company needs firmware with documented test coverage.
Employee-owned embedded software team with a strong testing culture. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare and medical devices, Industrial equipment, Scientific instruments, Energy.
Who should choose Sigma Software?
A typical fit: a telecoms company needs embedded network software.
Scandinavian governance with Ukrainian and Polish embedded engineers. Minimum engagement is not publicly disclosed. Works best with clients in Automotive, Telecoms, Healthcare, Energy.
Decision matrix: Bluefruit Software vs Sigma Software
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Bluefruit Software |
| You need a large dedicated team for an ongoing programme | Sigma Software |
| Your budget is at the lower end | Compare: Bluefruit Software (Not published) vs Sigma Software (Not published) |
| You need specialist depth in a specific vertical | Bluefruit Software |
| You want engineers added to your own in-house team | Bluefruit Software |
| You need the circuit board designed as well as the firmware | Neither; consider a hardware design house |
Use case fit: Bluefruit Software vs Sigma Software
| Use case | Bluefruit Software fit | Sigma Software fit | Winner |
|---|---|---|---|
| A medical device company needs firmware with documented test coverage. | Strong | Limited | Bluefruit Software |
| A scientific instrument maker wants device software rewritten. | Strong | Limited | Bluefruit Software |
| A telecoms company needs embedded network software. | Limited | Strong | Sigma Software |
| An automotive supplier wants firmware developers. | Limited | Strong | Sigma Software |
| You need custom electronics designed, not only firmware | Limited | Limited | Both equally |
| You want a fixed-price first phase before a longer engagement | Strong | Strong | Both equally |
Verdict: Bluefruit Software vs Sigma Software
Bluefruit Software (4.3/5) is the stronger overall choice for most IoT Development projects. Employee-owned embedded software team with a strong testing culture.
Sigma Software (4.0/5) is worth a look in a scenario like this: an automotive supplier wants firmware developers. If your situation matches that, Sigma Software is a competitive option.
Related comparisons
Bluefruit Software vs Sigma Software FAQ
Is Bluefruit Software better than Sigma Software?
Bluefruit Software (4.3/5) scores higher overall, but "better" depends on your use case. Bluefruit Software's strongest advantage: employee ownership tends to mean stable teams and low turnover. Sigma Software's strongest advantage: swedish parent adds governance.
How do Bluefruit Software and Sigma Software differ in pricing?
Bluefruit Software uses time and materials, fixed price pricing. Sigma Software uses time and materials, dedicated team, fixed price pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Bluefruit Software or Sigma Software?
Bluefruit Software 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 Bluefruit Software and Sigma Software?
Bluefruit Software's primary differentiator is: employee-owned embedded software team with a strong testing culture. Sigma Software's primary differentiator is: scandinavian governance with Ukrainian and Polish embedded engineers. They also differ in team size (70–90 vs 2,000+), minimum engagement (Not published vs Not published), and primary industries served (Healthcare and medical devices, Industrial equipment vs Automotive, Telecoms).
Verify all details directly with each company before making a decision.