Best IoT Development Companies

Bluefruit Software vs Sirin Software: full comparison for 2026

Quick verdict

Bluefruit Software (4.3/5) edges ahead of Sirin Software (4.2/5) overall. Bluefruit Software is the better choice for embedded software for medical and scientific devices. Sirin Software is the stronger option for firmware and IoT apps at Ukrainian rates. The right choice depends on your project size, budget, and required tech stack.

Bluefruit Software vs Sirin Software: head-to-head summary

Criterion Bluefruit Software Sirin Software
Founded 2000 2014
HQ Redruth, Cornwall, United Kingdom Florida, United States (R&D in Kyiv, Ukraine)
Team size 70–90 50–200
Rating 4.3 / 5 4.2 / 5
Primary differentiator Employee-owned embedded software team with a strong testing culture US contracting with a Kyiv embedded team
Pricing model Time and materials, fixed price Time and materials, dedicated team
Min. engagement Not published Not published
Primary tech stack Embedded C/C++, RTOS, BLE Embedded C/C++, Embedded Linux, BLE
Industries served Healthcare and medical devices, Industrial equipment, Scientific instruments, Energy Consumer electronics, Healthcare, Smart home, Industrial equipment

Bluefruit Software vs Sirin 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.

Sirin Software

Sirin Software was founded in March 2014 and has its R&D centre in Kyiv, with the company registered in Florida. A 2016 merger with Lampa Studio added mobile and web development. Directories now put the team at 50 to 200 people. Embedded systems, IoT and server-side software are its core business.

Services and capabilities: Bluefruit Software vs Sirin Software

Capability Bluefruit Software Sirin 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 Sirin Software

Framework / platform Bluefruit Software Sirin Software
Embedded C ✓ ✓
Embedded Linux N/A ✓
RTOS ✓ N/A
BLE ✓ ✓
LoRaWAN N/A N/A
AWS IoT N/A ✓
Azure IoT N/A N/A
FPGA N/A N/A

Pricing comparison: Bluefruit Software vs Sirin Software

Criterion Bluefruit Software Sirin Software
Minimum engagement Not published Not published
Engagement models Fixed project, Team extension, Time and materials Dedicated team, Time and materials
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Bluefruit Software vs Sirin Software

Dimension Bluefruit Software Sirin Software
Best company size Startup to mid-market Startup to mid-market
Best industries Healthcare and medical devices, Industrial equipment, Scientific instruments Consumer electronics, Healthcare, Smart home
Best use cases A medical device company needs firmware with documented test coverage., A scientific instrument maker wants device software rewritten. A smart home brand needs firmware and a companion app., A device maker wants a Linux gateway connected to the cloud.
Typical project type Fixed project Dedicated team

Bluefruit Software vs Sirin 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
Sirin Software
+ Good balance of firmware and app development
+ US entity for contracting
+ Lower rates than Western European IoT firms
- Delivery is concentrated in Kyiv, so continuity plans need checking
- Limited circuit design capability

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 Sirin Software?

A typical fit: a smart home brand needs firmware and a companion app.

US contracting with a Kyiv embedded team. Minimum engagement is not publicly disclosed. Works best with clients in Consumer electronics, Healthcare, Smart home, Industrial equipment.

Decision matrix: Bluefruit Software vs Sirin 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 Sirin Software
Your budget is at the lower end Compare: Bluefruit Software (Not published) vs Sirin 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 Sirin Software

Use case Bluefruit Software fit Sirin 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 smart home brand needs firmware and a companion app. Limited Strong Sirin Software
A device maker wants a Linux gateway connected to the cloud. Limited Strong Sirin 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 Limited Bluefruit Software

Verdict: Bluefruit Software vs Sirin 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.

Sirin Software (4.2/5) is worth a look in a scenario like this: a device maker wants a Linux gateway connected to the cloud. If your situation matches that, Sirin Software is a competitive option.

Related comparisons

Bluefruit Software vs Sirin Software FAQ

Is Bluefruit Software better than Sirin 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. Sirin Software's strongest advantage: good balance of firmware and app development.

How do Bluefruit Software and Sirin Software differ in pricing?

Bluefruit Software uses time and materials, fixed price pricing. Sirin Software uses time and materials, dedicated team 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 Sirin Software?

Sirin 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 Sirin Software?

Bluefruit Software's primary differentiator is: employee-owned embedded software team with a strong testing culture. Sirin Software's primary differentiator is: US contracting with a Kyiv embedded team. They also differ in team size (70–90 vs 50–200), minimum engagement (Not published vs Not published), and primary industries served (Healthcare and medical devices, Industrial equipment vs Consumer electronics, Healthcare).

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