Best Firmware Development Companies

Klika Tech vs Sigma Software Group: full comparison for 2026

Quick verdict

Klika Tech (4.1/5) edges ahead of Sigma Software Group (4.0/5) overall. Klika Tech is the better choice for IoT firmware designed around an AWS-based cloud backend from the start. Sigma Software Group is the stronger option for mid-to-large programs needing firmware alongside a broader multi-industry engineering group. The right choice depends on your project size, budget, and required tech stack.

Klika Tech vs Sigma Software Group: head-to-head summary

Criterion Klika Tech Sigma Software Group
Founded 2013 2002
HQ North Miami Beach, FL, USA Kharkiv, Ukraine
Team size Not published 1,100+
Rating 4.1 / 5 4.0 / 5
Primary differentiator AWS IoT and DevOps competency partner status combined with STMicroelectronics hardware partnership Majority Swedish ownership since 2006 combined with a 1,100-plus person multi-country delivery footprint
Pricing model Project-based IoT and cloud-embedded engagements Project-based and staff augmentation engagements
Min. engagement Not published Not published
Primary tech stack AWS IoT, C, C++ C, C++, Embedded Middleware
Industries served Industrial IoT, Consumer IoT, Cloud-connected devices Aviation, Gaming, Telecom, Industrial IoT

Klika Tech vs Sigma Software Group: overview

Klika Tech

Klika Tech was founded in 2013 and is headquartered in North Miami Beach, Florida, with delivery centers across North America, Europe, and Asia, including a Wrocław, Poland office opened in 2021. The company builds IoT, cloud, and embedded product solutions together, holding AWS IoT and DevOps competencies alongside STMicroelectronics partner status on the hardware side, positioning itself for clients whose firmware needs to talk directly to an AWS-based backend from day one. That cloud-first framing distinguishes it from firmware vendors that treat cloud integration as an afterthought handled by a separate team.

Sigma Software Group

Sigma Software Group was founded in Kharkiv, Ukraine in 2002 by five friends and now employs more than 1,100 people across Ukraine, Sweden, Poland, and the United States. In 2006 the Swedish IT conglomerate Sigma Group acquired a 60% stake in the company, an ownership structure that has held since; the remaining 40% stays with the original Ukrainian founders. Its embedded and IoT services cover application development, firmware, middleware, device drivers, and human-machine interfaces, delivered as one practice within a much larger portfolio spanning gaming, aviation, and telecom software.

Services and capabilities: Klika Tech vs Sigma Software Group

Capability Klika Tech Sigma Software Group
RTOS firmware development
Bare-metal & driver development
Secure boot / OTA firmware updates
MCU & platform migration
Connectivity & IoT protocols
Functional safety / compliance
Embedded AI / on-device inference
Firmware GUI development
Hardware co-design / board bring-up
Staff augmentation

Tech stack comparison: Klika Tech vs Sigma Software Group

Framework / platform Klika Tech Sigma Software Group
FreeRTOS N/A N/A
Zephyr N/A N/A
STM32 N/A N/A
ARM Cortex-M N/A N/A
Embedded Linux N/A N/A
BLE N/A N/A
MISRA N/A N/A
Secure Boot N/A N/A
AWS IoT N/A
RISC-V N/A N/A

Pricing comparison: Klika Tech vs Sigma Software Group

Criterion Klika Tech Sigma Software Group
Minimum engagement Not published Not published
Engagement models Project-based IoT and cloud-embedded engineering Project-based engineering, Staff augmentation
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Klika Tech vs Sigma Software Group

Dimension Klika Tech Sigma Software Group
Best company size Startup to mid-market Startup to mid-market
Best industries Industrial IoT, Consumer IoT, Cloud-connected devices Aviation, Gaming, Telecom
Best use cases IoT device firmware designed to integrate directly with an AWS IoT backend, Combined cloud and embedded firmware development for a new connected product Device driver or middleware development as part of a broader embedded program, HMI development for an industrial or aviation-adjacent embedded product
Typical project type Project-based IoT and cloud-embedded engineering Project-based engineering

Klika Tech vs Sigma Software Group: pros and cons

Klika Tech
+ AWS IoT and DevOps competency status backs its cloud-first firmware positioning with a verifiable AWS partner credential
+ STMicroelectronics partner status on the hardware side pairs cloud integration with direct chip-vendor support
+ 12 years of operating history with delivery centers spanning North America, Europe, and Asia
+ Cloud-and-firmware co-design suits products where the backend and the device firmware are built by the same team from the outset
- Its AWS-centric framing is a narrower fit for firmware projects that need to stay cloud-agnostic or target Azure or GCP instead
- Public team size is not published, making capacity harder to gauge against other mid-size firms
- No published pricing or minimum engagement figure
Sigma Software Group
+ 1,100-plus employees across Ukraine, Sweden, Poland, and the US give substantial delivery capacity and timezone coverage
+ 60% Swedish ownership since 2006 brings the governance and stability of an established Scandinavian IT conglomerate
+ 23 years of operating history under continuous leadership from its original founding team
+ Multi-industry portfolio spanning aviation, gaming, and telecom means firmware engineers work alongside teams solving comparable real-time and reliability problems in other domains
- Firmware and embedded work is one practice within a much broader multi-industry engineering group, not the company's sole focus
- 60% ownership by Sweden's Sigma Group means the company is not independently controlled by its original Ukrainian founders
- No published pricing or minimum engagement figure

Who should choose Klika Tech?

A typical fit: IoT device firmware designed to integrate directly with an AWS IoT backend.

AWS IoT and DevOps competency partner status combined with STMicroelectronics hardware partnership. Minimum engagement is not publicly disclosed. Works best with clients in Industrial IoT, Consumer IoT, Cloud-connected devices.

Who should choose Sigma Software Group?

A typical fit: device driver or middleware development as part of a broader embedded program.

Majority Swedish ownership since 2006 combined with a 1,100-plus person multi-country delivery footprint. Minimum engagement is not publicly disclosed. Works best with clients in Aviation, Gaming, Telecom, Industrial IoT.

Decision matrix: Klika Tech vs Sigma Software Group

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Both offer fixed-price models
You need a large dedicated team for an ongoing programme Check each company's engagement model
Your budget is at the lower end Compare: Klika Tech (Not published) vs Sigma Software Group (Not published)
You need specialist depth in a specific vertical Sigma Software Group
You need staff augmentation or team extension Sigma Software Group
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: Klika Tech vs Sigma Software Group

Use case Klika Tech fit Sigma Software Group fit Winner
IoT device firmware designed to integrate directly with an AWS IoT backend Strong Limited Klika Tech
Combined cloud and embedded firmware development for a new connected product Strong Limited Klika Tech
Device driver or middleware development as part of a broader embedded program Strong Strong Both equally
HMI development for an industrial or aviation-adjacent embedded product Limited Strong Sigma Software Group
Fixed-price build Limited Limited Both equally
Staff augmentation Limited Strong Sigma Software Group

Verdict: Klika Tech vs Sigma Software Group

Klika Tech (4.1/5) is the stronger overall choice for most Firmware Development projects. AWS IoT and DevOps competency partner status combined with STMicroelectronics hardware partnership.

Sigma Software Group (4.0/5) is worth a look if you need HMI development for an industrial or aviation-adjacent embedded product. If your situation matches that, Sigma Software Group is a competitive option.

Related comparisons

Klika Tech vs Sigma Software Group FAQ

Is Klika Tech better than Sigma Software Group?

Klika Tech (4.1/5) scores higher overall, but "better" depends on your use case. Klika Tech's strongest advantage: AWS IoT and DevOps competency status backs its cloud-first firmware positioning with a verifiable AWS partner credential. Sigma Software Group's strongest advantage: 1,100-plus employees across Ukraine, Sweden, Poland, and the US give substantial delivery capacity and timezone coverage.

How do Klika Tech and Sigma Software Group differ in pricing?

Klika Tech uses project-based iot and cloud-embedded engagements pricing. Sigma Software Group uses project-based and staff augmentation engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Klika Tech or Sigma Software Group?

Sigma Software Group 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 Klika Tech and Sigma Software Group?

Klika Tech's primary differentiator is: AWS IoT and DevOps competency partner status combined with STMicroelectronics hardware partnership. Sigma Software Group's primary differentiator is: majority Swedish ownership since 2006 combined with a 1,100-plus person multi-country delivery footprint. They also differ in team size (Not published vs 1,100+), minimum engagement (Not published vs Not published), and primary industries served (Industrial IoT, Consumer IoT vs Aviation, Gaming).

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