Top Embedded Software Development Companies

Embedded software development requires a different level of expertise compared to general software engineering. It involves low-level programming, real-time performance, hardware interaction, and strict reliability requirements. On top of that, modern embedded systems must support secure connectivity, OTA updates, and integration with cloud platforms.

Because of this complexity, many companies turn to specialized engineering partners.

To help you choose the right vendor, we analyzed the market and selected leading embedded software development companies with proven experience in firmware engineering, IoT systems, and hardware–software integration.

List of the best embedded software development companies

Each company on this list was evaluated against the following criteria:

• Practical expertise in embedded software, firmware, and IoT engineering, with evidence in case studies, published work, or client reviews
• Ability to work with physical hardware and deliver production-ready embedded solutions
• Support for full-cycle development, from concept and PoC to integration and product launch, or the ability to upgrade existing embedded products
• Engineering approach to security, real-time constraints, and hardware-software integration
• Verifiable market presence in the US, Europe, or Ukraine
• Verified Clutch profile where available (noted as N/A when not applicable)

Let’s take a closer look at the best embedded development companies, their core capabilities, and what makes them stand out.

1. Apriorit

• Headquarters: Lynn, MA (USA)
• Years in business: 24+ years
• Team size: 400+
• Clutch rating: 4.9
• Key services: Kernel and driver development, firmware development, FOTA updates, embedded AI and robotic systems development, RTOS development, firmware security and vulnerability scanning, embedded GUI design and development, hardware reverse engineering

Apriorit is one of the top embedded software development companies in the world. It stands out for its deep low-level and security-focused engineering expertise, making it particularly well-suited for developing complex embedded systems. Apriorit operates at the system level, working with firmware, kernel components, device drivers, and bootloader-level code. This allows their team to build highly optimized and reliable systems under strict hardware constraints.

A major differentiator is their security-by-design approach. Apriorit integrates secure boot, encryption, protected OTA updates, and vulnerability assessment into the development lifecycle. All of this is critical for IoT and connected devices exposed to real-world threats.

The company also offers hardware reverse engineering, allowing clients to work with undocumented devices, extend product lifecycles, and modernize legacy embedded systems.

Apriorit complies with ISO 27001, ISO 9001, and TISAX requirements, making the company a strong fit for regulated industries such as automotive, industrial automation, and cybersecurity.

2. Softeq

• Headquarters: Houston, Texas (USA)
• Years in business: 29+
• Team size: 200+
• Clutch rating: 4.9
• Key services: Custom firmware, embedded applications, middleware, Thunderbolt solutions, human-machine interfaces

Softeq is a US-headquartered product development company with a strong embedded engineering practice. Their team focuses on building software for connected physical products, combining embedded development with hardware integration.

Their expertise ranges across IoT and connected device development with expertise ranging across sensor integration, wireless connectivity protocols, and end-to-end device enablement. Their cross-functional teams include hardware engineers and software developers, which supports tighter integration cycles and faster validation. Softeq is a practical choice for product companies building new connected hardware from scratch or extending existing embedded platforms.

3. ITRex 

• Headquarters: Aliso Viejo, California (USA)
• Years in business: 17+
• Team size: 250+
• Clutch rating: 4.9
• Key services: Firmware development, human-machine interface development, sensor integration, middleware development, wireless connectivity solutions, electronics prototyping

ITRex is one of the embedded firmware development companies that has dedicated capabilities for embedded firmware and middleware development. Their embedded practice covers driver development, HMI engineering, sensor integration, and wireless connectivity, including Bluetooth, Wi-Fi, Zigbee, and other common IoT protocols.

Their experience with OTA updates and wireless communication makes them suitable for modern connected products that require scalability and remote management.

4. N-iX 

• Headquarters: Lviv, Ukraine
• Years in business: 20+
• Team size: 2,200+
• Clutch rating: 4.8
• Key services: Embedded hardware design and engineering, firmware development, embedded operating systems integration, connectivity services, hardware-software integration and porting, embedded DevOps pipeline design and configuration

N-iX focuses on large-scale IoT ecosystems, including industrial systems, robotics, and edge computing. With over 2,200 engineers and offices across Ukraine, Poland, and the US, N-iX can support large, multi-stream development programs.

Their ability to combine embedded development with cloud integration makes them a strong fit for distributed and data-driven systems.

5. Witekio

• Headquarters: Lyon, France
• Years in business: 25+
• Team size: 150+
• Clutch rating: 4.8
• Key services: Driver development, BSP, firmware development, embedded Linux

Witekio specializes in embedded Linux and board support package (BSP) engineering, helping companies build stable and scalable device software.

As part of the Avnet group, they have access to a broad hardware ecosystem, which supports faster bring-up and integration for clients working with a variety of SoCs and embedded platforms. Witekio also addresses IoT security and device-to-cloud integration, which makes it a strong choice for companies building industrial or commercial IoT products.

6. Yalantis

• Headquarters: Larnaca, Cyprus
• Years in business: 17+
• Team size: 500+
• Clutch rating: 4.8
• Key services: Embedded architecture design, embedded AI, Rust embedded development, firmware testing and automation, compliance and embedded security

Yalantis is a well-established European software development company with an embedded and IoT practice covering custom firmware, IoT platform development, and device-cloud integration.

They are a good fit for companies building end-to-end digital products involving hardware and software.

7. Sii Poland

• Headquarters: Warsaw, Poland
• Years in business: 20+
• Team size: 7,500+
• Clutch rating: 4.9
• Key services: Full-cycle development for high-performance devices, embedded cybersecurity, embedded testing, hardware development

Sii Poland is one of the largest technology services companies in Central Europe, with a dedicated embedded systems practice focused on automotive and industrial applications. Sii has achieved Vector certification as an embedded engineering partner, strengthening its positioning for AUTOSAR-based and automotive-grade embedded projects.

Their experience in real-time systems makes them suitable for projects with strict performance and safety requirements.

8. Intellias

• Headquarters: Sliema, Malta
• Years in business: 20+
• Team size: 3000+
• Clutch rating: 4.9
• Key services: IoT and connected devices, device-to-cloud and IoT platforms, automotive embedded systems

Intellias focuses on smart mobility and automotive IoT, delivering large-scale connected systems and data processing solutions. With a 3,000+ engineering team across Ukraine, Germany, and the US, Intellias can support complex, long-term IoT development projects. They are particularly strong in building transportation and mobility platforms.

9. Sigma Technology Group

• Headquarters: Gothenburg, Sweden
• Years in business: 30+
• Team size: 3,400+
• Clutch rating: N/A
• Key services: Embedded systems engineering, hardware design, IoT, and connected devices

Sigma Technology Group is a Scandinavian engineering services group with three decades of experience in embedded software and electronics-software integration. Sigma Technology Group provides embedded engineering services for industrial and safety-critical environments, with a focus on reliability and system integration.

Sigma Technology Group does not currently maintain a Clutch profile, but its market standing in Northern and Central Europe is well established through long-term engagements with major industrial and automotive clients. This embedded development firm is best suited for European organizations in automotive or industrial automation that require an embedded partner with established relationships and safety-critical engineering experience.

10. Lemberg Solutions

• Headquarters: Lviv, Ukraine
• Years in business: 15+
• Team size: 200+
• Clutch rating: 4.8
• Key services: Embedded system design, embedded consulting, end-to-end product development, legacy embedded system redesign, intelligent automation for embedded systems

Lemberg Solutions is a Ukrainian software engineering company with deep specialization in embedded Linux, MCU firmware, and hardware-software co-design. Their expertise allows them to support product development from the earliest electronics design stages through firmware and system integration.

Their connected-device practice covers a broad range of IoT applications, including industrial, agricultural, and consumer products. Lemberg Solutions is a practical choice for startups and scaleups that need an embedded partner capable of working across hardware and software layers.

11. SaM Solutions

• Headquarters: Riga, Latvia
• Years in business: 30+
• Team size: 800+
• Clutch rating: 4.5
• Key services: Firmware and embedded software development, drivers and board support packages, replatforming, embedded UI development, hardware design and prototyping

SaM Solutions is a German-headquartered software engineering company with over 30 years of experience and a dedicated embedded software practice. With a large and experienced engineering pool, SaM Solutions is suited for organizations that need reliable embedded development capacity for long-term engagements. 

Their BSP and firmware engineering depth make them particularly relevant for projects involving custom hardware bring-up, device connectivity, and embedded Linux or RTOS-based systems.

What to look for when choosing an embedded development company?

As you choose your vendor, other factors apart from general software experience might influence your decision.

• Low-level expertise. Make sure the company has real experience with C/C++, RTOS, and driver development, not just high-level applications.
• Hardware interaction. Embedded systems require hands-on work with physical devices, sensors, and custom boards.
• Full-cycle delivery. Look for vendors that can handle architecture, firmware development, integration, and testing.
• Security capabilities. Security is critical for connected devices, so vendors should support secure boot, encryption, and secure OTA updates. 
• Industry expertise. If your product operates in a regulated environment, experience with automotive, healthcare, or industrial standards is essential.