RMB Consulting vs Sigma Design: full comparison for 2026
Quick verdict
RMB Consulting (4.3/5) edges ahead of Sigma Design (3.9/5) overall. RMB Consulting is the better choice for Direct, founder-led firmware architecture consulting on a small engagement. Sigma Design is the stronger option for multi-discipline architecture advisory spanning industrial design, mechanical engineering, and firmware. The right choice depends on your project size, budget, and required tech stack.
RMB Consulting vs Sigma Design: head-to-head summary
| Criterion | RMB Consulting | Sigma Design |
|---|---|---|
| Founded | 1995 | 1994 |
| HQ | Frederick, MD, USA (also Tampa, FL) | Camas, WA, USA |
| Team size | 1–10 | 283 |
| Rating | 4.3 / 5 | 3.9 / 5 |
| Primary differentiator | 30-plus years of hands-on embedded engineering experience concentrated in a single named principal consultant | 283-person product design and engineering firm advising across industrial design, mechanical engineering, and firmware at scale |
| Pricing model | Project-based and hourly consulting engagements | Project-based product design and engineering consulting engagements |
| Min. engagement | Not published | Not published |
| Primary tech stack | C, C++, Bare-Metal Firmware | C, C++, Embedded Systems Programming |
| Industries served | Industrial, Consumer electronics, Medical devices | Consumer electronics, Industrial, Medical devices |
RMB Consulting vs Sigma Design: overview
RMB Consulting
RMB Consulting has operated in embedded systems design and consulting since 1995, run by founder and chief engineer Nigel Jones, who brings more than 30 years of professional embedded systems engineering experience. The firm covers hardware, software, and firmware consulting with a team of 1 to 10 people, positioning it at the smallest and most direct end of the advisory spectrum on this list. Nigel Jones is also a recognized voice in the embedded engineering community through long-running technical blogging on firmware design topics, which gives a prospective client a substantial public track record to evaluate before ever making contact.
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 advisory scope covers mechanical design, industrial design, testing, and software and firmware engineering, positioning itself as a full product design and engineering partner rather than a firmware-only consultant. For an architecture review that needs to weigh industrial design, mechanical engineering, and firmware decisions together, Sigma Design's breadth and headcount give it more parallel-program capacity than most boutique advisory firms.
Services and capabilities: RMB Consulting vs Sigma Design
| Capability | RMB Consulting | Sigma Design |
|---|---|---|
| Architecture review | ✓ | ✓ |
| Feasibility assessment | ✓ | ✗ |
| Functional safety consulting | ✗ | ✗ |
| Technical training | ✗ | ✗ |
| Expert-witness services | ✗ | ✗ |
| Hardware co-design | ✗ | ✓ |
| Medical device firmware | ✗ | ✗ |
| IoT connectivity | ✗ | ✗ |
| Staff augmentation | ✗ | ✗ |
Tech stack comparison: RMB Consulting vs Sigma Design
| Framework / platform | RMB Consulting | Sigma Design |
|---|---|---|
| C | ✓ | ✓ |
| C++ | ✓ | ✓ |
| RTOS | N/A | N/A |
| ISO 26262 | N/A | N/A |
| IEC 61508 | N/A | N/A |
| MISRA C | N/A | N/A |
| FPGA | N/A | N/A |
| Embedded Linux | N/A | N/A |
| PCB Design | N/A | N/A |
Pricing comparison: RMB Consulting vs Sigma Design
| Criterion | RMB Consulting | Sigma Design |
|---|---|---|
| Minimum engagement | Not published | Not published |
| Engagement models | Project-based consulting, Hourly consulting | Project-based product design and engineering |
| Rate transparency | Not public | Not public |
| Price tier | Mid-market | Mid-market |
Target audience comparison: RMB Consulting vs Sigma Design
| Dimension | RMB Consulting | Sigma Design |
|---|---|---|
| Best company size | Startup to mid-market | Startup to mid-market |
| Best industries | Industrial, Consumer electronics, Medical devices | Consumer electronics, Industrial, Medical devices |
| Best use cases | Small firmware architecture review led directly by a senior independent consultant, Bare-metal firmware design consulting for a resource-constrained embedded product | Multi-discipline architecture advisory bundling industrial design, mechanical engineering, and firmware, Onsite advisory engagement embedding senior engineers with an in-house team |
| Typical project type | Project-based consulting | Project-based product design and engineering |
RMB Consulting vs Sigma Design: pros and cons
| RMB Consulting | |
|---|---|
| + | 30 years of professional embedded systems experience concentrated in a single named principal, not diluted across a large team |
| + | 30 years of operating history under the same founder gives long continuity of technical judgment |
| + | A substantial public record of technical writing on firmware design topics lets a prospective client evaluate expertise before engaging |
| + | Very small team size means no account-management layer between the client and the engineer doing the work |
| - | A team of 1 to 10 people severely limits capacity for a large or multi-workstream engagement |
| - | No published pricing or minimum engagement figure |
| - | Availability may be constrained given the founder-led, low-headcount structure |
| Sigma Design | |
|---|---|
| + | 283 employees across five continents give substantially more parallel-program advisory capacity than most boutique firms |
| + | 31 years of operating history under continuous product-design focus |
| + | Industrial design and mechanical engineering advisory sits alongside firmware, matching multi-discipline architecture reviews |
| + | Onsite contracting option can place advisory engineers directly with a client team |
| - | Firmware advisory 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 advisory engagements, versus its broader product design portfolio, are limited |
Who should choose RMB Consulting?
A typical fit: small firmware architecture review led directly by a senior independent consultant.
30-plus years of hands-on embedded engineering experience concentrated in a single named principal consultant. Minimum engagement is not publicly disclosed. Works best with clients in Industrial, Consumer electronics, Medical devices.
Who should choose Sigma Design?
A typical fit: multi-discipline architecture advisory bundling industrial design, mechanical engineering, and firmware.
283-person product design and engineering firm advising across industrial design, mechanical engineering, and firmware at scale. Minimum engagement is not publicly disclosed. Works best with clients in Consumer electronics, Industrial, Medical devices.
Decision matrix: RMB Consulting 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: RMB Consulting (Not published) vs Sigma Design (Not published) |
| You need specialist depth in a specific vertical | RMB Consulting |
| You need staff augmentation or team extension | Neither; consider alternatives that offer staff aug |
| You need consulting before committing to a build | RMB Consulting |
Use case fit: RMB Consulting vs Sigma Design
| Use case | RMB Consulting fit | Sigma Design fit | Winner |
|---|---|---|---|
| Small firmware architecture review led directly by a senior independent consultant | Strong | Limited | RMB Consulting |
| Bare-metal firmware design consulting for a resource-constrained embedded product | Strong | Limited | RMB Consulting |
| Multi-discipline architecture advisory bundling industrial design, mechanical engineering, and firmware | Limited | Strong | Sigma Design |
| Onsite advisory engagement embedding senior engineers with an in-house team | Limited | Strong | Sigma Design |
| Fixed-price build | Limited | Limited | Both equally |
| Staff augmentation | Limited | Limited | Both equally |
Verdict: RMB Consulting vs Sigma Design
RMB Consulting (4.3/5) is the stronger overall choice for most Firmware Consulting projects. 30-plus years of hands-on embedded engineering experience concentrated in a single named principal consultant.
Sigma Design (3.9/5) is worth a look if you need onsite advisory engagement embedding senior engineers with an in-house team. If your situation matches that, Sigma Design is a competitive option.
Related comparisons
RMB Consulting vs Sigma Design FAQ
Is RMB Consulting better than Sigma Design?
RMB Consulting (4.3/5) scores higher overall, but "better" depends on your use case. RMB Consulting's strongest advantage: 30 years of professional embedded systems experience concentrated in a single named principal, not diluted across a large team. Sigma Design's strongest advantage: 283 employees across five continents give substantially more parallel-program advisory capacity than most boutique firms.
How do RMB Consulting and Sigma Design differ in pricing?
RMB Consulting uses project-based and hourly consulting engagements pricing. Sigma Design uses project-based product design and engineering consulting engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.
Which is better for enterprise: RMB Consulting or Sigma Design?
Sigma Design is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each consultancy before shortlisting.
What are the main differences between RMB Consulting and Sigma Design?
RMB Consulting's primary differentiator is: 30-plus years of hands-on embedded engineering experience concentrated in a single named principal consultant. Sigma Design's primary differentiator is: 283-person product design and engineering firm advising across industrial design, mechanical engineering, and firmware at scale. They also differ in team size (1–10 vs 283), minimum engagement (Not published vs Not published), and primary industries served (Industrial, Consumer electronics vs Consumer electronics, Industrial).
Verify all details directly with each consultancy before making a decision.