Conclusive Engineering vs Sigma Design: full comparison for 2026
Quick verdict
Conclusive Engineering (4.5/5) edges ahead of Sigma Design (4.2/5) overall. Conclusive Engineering is the better choice for RFPs needing PCB development bundled with firmware under ISO 26262 or IEC 61508. Sigma Design is the stronger option for multi-discipline RFPs needing industrial design and firmware at large scale. The right choice depends on your project size, budget, and required tech stack.
Conclusive Engineering vs Sigma Design: head-to-head summary
| Criterion | Conclusive Engineering | Sigma Design |
|---|---|---|
| Founded | 2018 | 1994 |
| HQ | Katowice, Poland | Camas, WA, USA |
| Team size | 30–50 | 283 |
| Rating | 4.5 / 5 | 4.2 / 5 |
| Primary differentiator | Listed Nordic Semiconductor and Texas Instruments partner combining in-house PCB development with firmware and FreeBSD depth | 283-person product design and engineering firm spanning industrial design, mechanical engineering, and firmware across five continents |
| Pricing model | Project-based engineering engagements | Project-based product design and engineering engagements |
| Min. engagement | Not published | Not published |
| Primary tech stack | FreeRTOS, Embedded Linux, FreeBSD | C, C++, Embedded Systems Programming |
| Industries served | Automotive, Healthcare, Industrial, Manufacturing | Consumer electronics, Industrial, Medical devices |
Conclusive Engineering vs Sigma Design: overview
Conclusive Engineering
Conclusive Engineering was founded in 2018 in Katowice, Poland by Jakub Klama and Wojciech Kloska, with a team most sources place between 30 and 50 engineers. Its scope covers embedded systems design and manufacturing support, spanning microcontroller and FPGA-based firmware alongside in-house hardware design and PCB development, with automotive and healthcare clients where ISO 26262 and IEC 61508 alignment factor into vendor selection. Listed partner status with Nordic Semiconductor and Texas Instruments gives a procurement evaluator a documented, third-party-verifiable credential rather than a self-reported claim.
Sigma Design
Sigma Design (operating as SIGMADESIGN) was established in 1994 in Portland, Oregon and is now headquartered in Camas, Washington with approximately 283 employees across five continents. Its stated scope covers mechanical design and engineering, industrial design, testing, onsite contracting, and software and firmware engineering, positioning itself as a full product design and engineering partner rather than a firmware-only vendor. For an RFP that groups industrial design, mechanical engineering, and firmware into one deliverable, Sigma Design's breadth and headcount give it more parallel-program capacity than most boutique bidders on this list.
Services and capabilities: Conclusive Engineering vs Sigma Design
| Capability | Conclusive Engineering | Sigma Design |
|---|---|---|
| Firmware development | ✓ | ✓ |
| Hardware / PCB co-design | ✓ | ✓ |
| Functional safety / certification | ✓ | ✗ |
| Defense / aerospace credentials | ✗ | ✗ |
| Medical device firmware | ✗ | ✗ |
| Secure firmware updates | ✗ | ✗ |
| IoT connectivity | ✗ | ✗ |
| Embedded Linux | ✓ | ✗ |
| Staff augmentation | ✗ | ✗ |
Tech stack comparison: Conclusive Engineering vs Sigma Design
| Framework / platform | Conclusive Engineering | Sigma Design |
|---|---|---|
| C | ✓ | ✓ |
| C++ | ✓ | ✓ |
| Embedded Linux | ✓ | N/A |
| PCB Design | N/A | N/A |
| FPGA | ✓ | N/A |
| MISRA C | N/A | N/A |
| ITAR | N/A | N/A |
| AWS IoT | N/A | N/A |
| ASIL | N/A | N/A |
Pricing comparison: Conclusive Engineering vs Sigma Design
| Criterion | Conclusive Engineering | Sigma Design |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Project-based engineering, Design-phase consulting | Project-based product design and engineering |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: Conclusive Engineering vs Sigma Design
| Dimension | Conclusive Engineering | Sigma Design |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Automotive, Healthcare, Industrial | Consumer electronics, Industrial, Medical devices |
| Best use cases | Combined PCB and firmware development scoped under a single SOW, ISO 26262-aligned automotive control module procurement | Full product design RFP bundling industrial design, mechanical engineering, and firmware, Onsite contracting engagement embedding firmware engineers with an in-house team |
| Typical project type | Project-based engineering | Project-based product design and engineering |
Conclusive Engineering vs Sigma Design: pros and cons
| Conclusive Engineering | |
|---|---|
| + | Nordic Semiconductor and Texas Instruments partner status is verifiable in each vendor's own public directory, useful for an RFP vendor-qualification step |
| + | In-house PCB development means a hardware+firmware line item can be scoped to one vendor instead of two |
| + | ISO 26262 and IEC 61508 alignment work suits safety-relevant automotive and industrial procurement requirements |
| + | FreeBSD depth is uncommon among competing bidders, most of whom default to Linux or bare-metal only |
| - | Team size estimates vary between roughly 30 and 50 engineers depending on source, worth confirming directly for a large program's bench-depth requirement |
| - | 7 years of operating history is shorter than several larger competitors an RFP evaluation might weigh for track record |
| - | No published pricing or minimum engagement threshold |
| Sigma Design | |
|---|---|
| + | 283 employees across five continents give substantially more parallel-program capacity than most boutique firms on this list |
| + | 31 years of operating history under continuous product-design focus |
| + | Industrial design and mechanical engineering sit alongside firmware, matching how a full product RFP is often scoped |
| + | Onsite contracting option can place engineers directly with a client team for close-coordination programs |
| - | Firmware is one discipline inside a much broader product-design practice, not the firm's primary specialty |
| - | No published pricing or minimum engagement figure |
| - | Public case studies specific to firmware-only engagements, versus its broader product design portfolio, are limited |
Who should choose Conclusive Engineering?
A typical fit: combined PCB and firmware development scoped under a single SOW.
Listed Nordic Semiconductor and Texas Instruments partner combining in-house PCB development with firmware and FreeBSD depth. Minimum engagement is not publicly disclosed. Works best with clients in Automotive, Healthcare, Industrial, Manufacturing.
Who should choose Sigma Design?
A typical fit: full product design RFP bundling industrial design, mechanical engineering, and firmware.
283-person product design and engineering firm spanning industrial design, mechanical engineering, and firmware across five continents. Minimum engagement is not publicly disclosed. Works best with clients in Consumer electronics, Industrial, Medical devices.
Decision matrix: Conclusive Engineering vs Sigma Design
| 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: Conclusive Engineering (Not published) vs Sigma Design (Not published) |
| You need specialist depth in a specific vertical | Conclusive Engineering |
| You need staff augmentation or team extension | Neither; consider alternatives that offer staff aug |
| You need consulting before committing to a build | Conclusive Engineering |
Use case fit: Conclusive Engineering vs Sigma Design
| Use case | Conclusive Engineering fit | Sigma Design fit | Winner |
|---|---|---|---|
| Combined PCB and firmware development scoped under a single SOW | Strong | Limited | Conclusive Engineering |
| ISO 26262-aligned automotive control module procurement | Strong | Limited | Conclusive Engineering |
| Full product design RFP bundling industrial design, mechanical engineering, and firmware | Limited | Strong | Sigma Design |
| Onsite contracting engagement embedding firmware engineers with an in-house team | Limited | Strong | Sigma Design |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: Conclusive Engineering vs Sigma Design
Conclusive Engineering (4.5/5) is the stronger overall choice for most Embedded Firmware projects. Listed Nordic Semiconductor and Texas Instruments partner combining in-house PCB development with firmware and FreeBSD depth.
Sigma Design (4.2/5) is worth a look if you need onsite contracting engagement embedding firmware engineers with an in-house team. If your situation matches that, Sigma Design is a competitive option.
Related comparisons
Conclusive Engineering vs Sigma Design FAQ
Is Conclusive Engineering better than Sigma Design?
Conclusive Engineering (4.5/5) scores higher overall, but "better" depends on your use case. Conclusive Engineering's strongest advantage: nordic Semiconductor and Texas Instruments partner status is verifiable in each vendor's own public directory, useful for an RFP vendor-qualification step. Sigma Design's strongest advantage: 283 employees across five continents give substantially more parallel-program capacity than most boutique firms on this list.
How do Conclusive Engineering and Sigma Design differ in pricing?
Conclusive Engineering uses project-based engineering engagements pricing. Sigma Design uses project-based product design and engineering engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: Conclusive Engineering or Sigma Design?
Conclusive Engineering is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each service provider before shortlisting.
What are the main differences between Conclusive Engineering and Sigma Design?
Conclusive Engineering's primary differentiator is: listed Nordic Semiconductor and Texas Instruments partner combining in-house PCB development with firmware and FreeBSD depth. Sigma Design's primary differentiator is: 283-person product design and engineering firm spanning industrial design, mechanical engineering, and firmware across five continents. They also differ in team size (30–50 vs 283), minimum engagement (Not published vs Not published), and primary industries served (Automotive, Healthcare vs Consumer electronics, Industrial).
Verify all details directly with each service provider before making a decision.