Lemberg Solutions vs Sii Poland: full comparison for 2026
Quick verdict
Lemberg Solutions (4.9/5) edges ahead of Sii Poland (3.9/5) overall. Lemberg Solutions is the better choice for RTOS firmware needing secure boot and direct chip-vendor partnerships. Sii Poland is the stronger option for large enterprise programs needing hundreds of embedded engineers. The right choice depends on your project size, budget, and required tech stack.
Lemberg Solutions vs Sii Poland: head-to-head summary
| Criterion | Lemberg Solutions | Sii Poland |
|---|---|---|
| Founded | 2007 | 2006 |
| HQ | Lviv, Ukraine (offices in Hamburg, Germany; London, UK; Kraków, Poland) | Warsaw, Poland |
| Team size | 200+ | 7,500+ |
| Rating | 4.9 / 5 | 3.9 / 5 |
| Primary differentiator | Direct NXP, STMicroelectronics, and Microchip partnerships paired with an in-house hardware lab for board bring-up and HIL testing | One of Central Europe's largest engineering and IT services firms, with embedded systems as a dedicated practice |
| Pricing model | Firmware consulting, design-phase engagement, full development lifecycle, or team extension/staff augmentation | Staff augmentation and fixed-scope engineering engagements |
| Min. engagement | Not published | Not published |
| Primary tech stack | FreeRTOS, Zephyr, Azure RTOS | Embedded C/C++, Automotive embedded platforms, Enterprise integration tooling |
| Industries served | Healthcare (FDA/HIPAA/IEC 62304), Energy (battery management, EV charging), Transportation & Logistics, Manufacturing & Industrial IoT, Consumer Electronics, Automotive | Automotive, Telecommunications, Enterprise IT |
Lemberg Solutions vs Sii Poland: overview
Lemberg Solutions
Lemberg Solutions is an engineering firm founded in 2007 and headquartered in Lviv, Ukraine, with additional offices in Hamburg, Germany, London, United Kingdom, and Kraków, Poland. The 200+ person team builds RTOS and bare-metal firmware on FreeRTOS, Zephyr, and Azure RTOS, alongside secure boot, OTA update pipelines, and MISRA-aware testing for regulated clients. It holds direct partnerships with NXP, STMicroelectronics, and Microchip as primary semiconductor partners, plus an in-house lab with oscilloscopes and hardware-in-the-loop testing for board bring-up. Public case studies include a KONVOI truck security firmware audit and a Caltech medical device port to STM32, and the company holds ISO 9001, ISO 27001, and ISO 13485 certifications with full IP transfer to the client on delivery.
Sii Poland
Sii Poland was founded in 2006 and is headquartered in Warsaw, Poland, reporting more than 7,500 specialists company-wide. Firmware and embedded systems R&D form a dedicated practice within a much larger IT services and engineering business that also covers automotive, telecom, and enterprise software, positioning Sii as a scale option for programs that need large, sustained staffing rather than a boutique specialist team. That scale is the firm's clearest advantage and also its clearest trade-off: a small firmware project competes for attention against far larger enterprise accounts.
Services and capabilities: Lemberg Solutions vs Sii Poland
| Capability | Lemberg Solutions | Sii Poland |
|---|---|---|
| RTOS firmware development | ✓ | ✓ |
| Bare-metal & driver development | ✓ | ✗ |
| Secure boot / OTA firmware updates | ✓ | ✗ |
| MCU & platform migration | ✓ | ✗ |
| Connectivity & IoT protocols | ✓ | ✗ |
| Functional safety / MISRA compliance | ✓ | ✓ |
| Embedded AI / on-device inference | ✓ | ✗ |
| Firmware GUI development | ✓ | ✗ |
| Staff augmentation | ✓ | ✓ |
Tech stack comparison: Lemberg Solutions vs Sii Poland
| Framework / platform | Lemberg Solutions | Sii Poland |
|---|---|---|
| FreeRTOS | ✓ | N/A |
| Zephyr | ✓ | N/A |
| STM32 | ✓ | N/A |
| ARM Cortex-M | ✓ | N/A |
| BLE | N/A | N/A |
| Embedded Linux | ✓ | N/A |
| Secure OTA | N/A | N/A |
| PCB | N/A | N/A |
| AWS IoT | ✓ | N/A |
| RISC-V | ✓ | N/A |
Pricing comparison: Lemberg Solutions vs Sii Poland
| Criterion | Lemberg Solutions | Sii Poland |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Firmware consulting, Design-phase engagement, Full development lifecycle, Staff augmentation | Staff augmentation, Fixed project |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Lemberg Solutions vs Sii Poland
| Dimension | Lemberg Solutions | Sii Poland |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Healthcare (FDA/HIPAA/IEC 62304), Energy (battery management, EV charging), Transportation & Logistics | Automotive, Telecommunications, Enterprise IT |
| Best use cases | Security audit of an existing firmware codebase ahead of a compliance deadline, Secure OTA update pipeline for a fleet of connected industrial devices | Large automotive or telecom program needing sustained embedded staff augmentation, Enterprise client consolidating firmware work under an existing large IT vendor relationship |
| Typical project type | Firmware consulting | Staff augmentation |
Lemberg Solutions vs Sii Poland: pros and cons
| Lemberg Solutions | |
|---|---|
| + | Direct partnerships with NXP, STMicroelectronics, and Microchip back up semiconductor-level claims instead of a generic all-chips pitch |
| + | In-house lab with oscilloscopes, evaluation kits, and HIL testing capability covers board bring-up work most pure-firmware vendors outsource |
| + | ISO 27001, ISO 9001, and ISO 13485 certifications plus MISRA-aware testing suit regulated industrial and medical firmware |
| + | Full intellectual property and source code rights transfer to the client on every engagement |
| + | Named case studies span automotive security auditing, medical device porting, and industrial telemetry rather than one vertical |
| - | Does not manufacture finished devices or handle mass production in-house |
| - | Does not obtain product regulatory certification on the client's behalf; the client or a third party owns that process |
| - | Minimum engagement size is not published, so budget fit requires a direct conversation |
| Sii Poland | |
|---|---|
| + | More than 7,500 specialists company-wide gives significant staffing depth for large or urgent programs |
| + | Dedicated firmware and embedded systems R&D practice within a much larger engineering organization |
| + | Two decades of operating history with established delivery processes |
| - | Scale means a small firmware project may receive less senior attention than at a boutique firm |
| - | Embedded work is one of many practice areas rather than the firm's primary specialization |
Who should choose Lemberg Solutions?
A typical fit: security audit of an existing firmware codebase ahead of a compliance deadline.
Direct NXP, STMicroelectronics, and Microchip partnerships paired with an in-house hardware lab for board bring-up and HIL testing. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare (FDA/HIPAA/IEC 62304), Energy (battery management, EV charging), Transportation & Logistics, Manufacturing & Industrial IoT, Consumer Electronics, Automotive.
Who should choose Sii Poland?
A typical fit: large automotive or telecom program needing sustained embedded staff augmentation.
One of Central Europe's largest engineering and IT services firms, with embedded systems as a dedicated practice. Minimum engagement is not publicly disclosed. Works best with clients in Automotive, Telecommunications, Enterprise IT.
Decision matrix: Lemberg Solutions vs Sii Poland
| Your situation | Recommended choice |
|---|---|
| You need full-ownership delivery on a defined project scope | Sii Poland |
| You need a large dedicated team for an ongoing programme | Check each company's engagement model |
| Your budget is at the lower end | Compare: Lemberg Solutions (Not published) vs Sii Poland (Not published) |
| You need specialist depth in a specific vertical | Lemberg Solutions |
| You need staff augmentation or team extension | Lemberg Solutions |
| You need consulting before committing to a build | Lemberg Solutions |
Use case fit: Lemberg Solutions vs Sii Poland
| Use case | Lemberg Solutions fit | Sii Poland fit | Winner |
|---|---|---|---|
| Security audit of an existing firmware codebase ahead of a compliance deadline | Strong | Limited | Lemberg Solutions |
| Secure OTA update pipeline for a fleet of connected industrial devices | Strong | Limited | Lemberg Solutions |
| Large automotive or telecom program needing sustained embedded staff augmentation | Limited | Strong | Sii Poland |
| Enterprise client consolidating firmware work under an existing large IT vendor relationship | Limited | Strong | Sii Poland |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Strong | Sii Poland |
Verdict: Lemberg Solutions vs Sii Poland
Lemberg Solutions (4.9/5) is the stronger overall choice for most Firmware Development projects. Direct NXP, STMicroelectronics, and Microchip partnerships paired with an in-house hardware lab for board bring-up and HIL testing.
Sii Poland (3.9/5) is worth a look if you need enterprise client consolidating firmware work under an existing large IT vendor relationship. If your situation matches that, Sii Poland is a competitive option.
Related comparisons
Lemberg Solutions vs Sii Poland FAQ
Is Lemberg Solutions better than Sii Poland?
Lemberg Solutions (4.9/5) scores higher overall, but "better" depends on your use case. Lemberg Solutions's strongest advantage: direct partnerships with NXP, STMicroelectronics, and Microchip back up semiconductor-level claims instead of a generic all-chips pitch. Sii Poland's strongest advantage: more than 7,500 specialists company-wide gives significant staffing depth for large or urgent programs.
How do Lemberg Solutions and Sii Poland differ in pricing?
Lemberg Solutions uses firmware consulting, design-phase engagement, full development lifecycle, or team extension/staff augmentation pricing. Sii Poland uses staff augmentation and fixed-scope engineering engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Lemberg Solutions or Sii Poland?
Sii Poland 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 Lemberg Solutions and Sii Poland?
Lemberg Solutions's primary differentiator is: direct NXP, STMicroelectronics, and Microchip partnerships paired with an in-house hardware lab for board bring-up and HIL testing. Sii Poland's primary differentiator is: one of Central Europe's largest engineering and IT services firms, with embedded systems as a dedicated practice. They also differ in team size (200+ vs 7,500+), minimum engagement (Not published vs Not published), and primary industries served (Healthcare (FDA/HIPAA/IEC 62304), Energy (battery management, EV charging) vs Automotive, Telecommunications).
Verify all details directly with each company before making a decision.