Best Embedded Firmware Developers

Barr Group vs Oxalis Design: full comparison for 2026

Quick verdict

Barr Group (4.5/5) edges ahead of Oxalis Design (4.0/5) overall. Barr Group is the better choice for teams wanting engineers whose published technical work they can vet before hiring. Oxalis Design is the stronger option for very small teams wanting direct, ongoing access to the founding engineers. The right choice depends on your project size, budget, and required tech stack.

Barr Group vs Oxalis Design: head-to-head summary

Criterion Barr Group Oxalis Design
Founded 2012 2019
HQ Gaithersburg, MD, USA Bristol, UK
Team size 51–200 2–10
Rating 4.5 / 5 4.0 / 5
Primary differentiator Led by Michael Barr, a recognized embedded software author and former magazine editor-in-chief, giving prospective clients a public body of work to evaluate first Founder-led team where both founders remain personally involved in client engineering work, not just management
Pricing model Consulting engagements, training courses, expert-witness services Project-based electronics and embedded engagements
Min. engagement Not published Not published
Primary tech stack C, C++, RTOS Architecture Review C, C++, RF Design
Industries served Medical devices, Industrial, Consumer electronics, Legal / litigation support Medical devices, Consumer electronics, Industrial

Barr Group vs Oxalis Design: overview

Barr Group

Barr Group was founded in 2012 and is headquartered in Gaithersburg, Maryland, with a team in the 51 to 200 employee range. Led by CTO Michael Barr, a former editor-in-chief of Embedded Systems Design magazine and author of multiple embedded software books, the firm's identity centers on training, firmware process and architecture work, and legal technical expert-witness services rather than volume staffing. For an engineering leader deciding who to bring onto a team, working alongside people whose technical writing they've likely already read is a different kind of hiring signal than a generic vendor profile.

Oxalis Design

Oxalis Design is a Bristol, UK electronics and embedded systems consultancy founded by Alex Turner and Alex Thornicroft, both experienced electronics and software engineers who remain personally involved in client work rather than having moved fully into management. For a client evaluating team fit at the smallest scale, this means the people making architecture decisions are the same people who will be reachable throughout the engagement, not a sales contact who hands the work to unnamed staff.

Services and capabilities: Barr Group vs Oxalis Design

Capability Barr Group Oxalis Design
Firmware development
RTOS development
Hardware co-design
Embedded GUI development
Medical device firmware
Functional safety
Technical training
Expert-witness services
Staff augmentation

Tech stack comparison: Barr Group vs Oxalis Design

Framework / platform Barr Group Oxalis Design
C
C++
FreeRTOS N/A N/A
Zephyr N/A N/A
FPGA N/A N/A
Embedded Linux N/A N/A
LVGL N/A N/A
AWS IoT N/A N/A
ARM Cortex-M N/A N/A

Pricing comparison: Barr Group vs Oxalis Design

Criterion Barr Group Oxalis Design
Minimum engagement Not published Not published
Engagement models Firmware process & architecture consulting, Training, Expert-witness services Project-based engineering, concept through pilot build
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Barr Group vs Oxalis Design

Dimension Barr Group Oxalis Design
Best company size Startup to mid-market Startup to mid-market
Best industries Medical devices, Industrial, Consumer electronics Medical devices, Consumer electronics, Industrial
Best use cases Bringing in a recognized technical authority to review an in-house team's architecture decisions, Firmware process training for engineers already on staff Hiring a very small team where the founders personally do the engineering, RF and firmware co-design for a new connected consumer device
Typical project type Firmware process & architecture consulting Project-based engineering, concept through pilot build

Barr Group vs Oxalis Design: pros and cons

Barr Group
+ Michael Barr's public technical writing and books give a prospective client a way to evaluate the team's judgment before ever making contact
+ Training as a core business line means the firm's engineers are practiced at explaining their reasoning, not just doing the work silently
+ 13 years of operating history built specifically around expert technical judgment rather than headcount growth
+ 51 to 200 employees give real bench depth for a firm this specialized
- Volume firmware development capacity is not the firm's stated focus, so a large parallel build program may need a second team
- No published consulting rate or minimum engagement figure
- Expert-witness work is a distinct practice from product engineering; confirm which team a specific inquiry reaches
Oxalis Design
+ Both founders remain personally involved in engineering work, not just business development
+ Focus on electronics and embedded firmware exclusively, without a broader IT practice diluting attention
+ RF design capability in-house means wireless connectivity work doesn't require a separate specialist
+ Serves medical, consumer, and industrial clients from concept through pilot build
- A team of 2 to 10 people limits capacity to a small number of concurrent client programs at any time
- Publicly verifiable founding date and detailed case study history are limited
- No published pricing or minimum engagement figure

Who should choose Barr Group?

A typical fit: bringing in a recognized technical authority to review an in-house team's architecture decisions.

Led by Michael Barr, a recognized embedded software author and former magazine editor-in-chief, giving prospective clients a public body of work to evaluate first. Minimum engagement is not publicly disclosed. Works best with clients in Medical devices, Industrial, Consumer electronics, Legal / litigation support.

Who should choose Oxalis Design?

A typical fit: hiring a very small team where the founders personally do the engineering.

Founder-led team where both founders remain personally involved in client engineering work, not just management. Minimum engagement is not publicly disclosed. Works best with clients in Medical devices, Consumer electronics, Industrial.

Decision matrix: Barr Group vs Oxalis 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: Barr Group (Not published) vs Oxalis Design (Not published)
You need specialist depth in a specific vertical Barr Group
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Barr Group

Use case fit: Barr Group vs Oxalis Design

Use case Barr Group fit Oxalis Design fit Winner
Bringing in a recognized technical authority to review an in-house team's architecture decisions Strong Limited Barr Group
Firmware process training for engineers already on staff Strong Strong Both equally
Hiring a very small team where the founders personally do the engineering Limited Strong Oxalis Design
RF and firmware co-design for a new connected consumer device Limited Strong Oxalis Design
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited Barr Group

Verdict: Barr Group vs Oxalis Design

Barr Group (4.5/5) is the stronger overall choice for most Embedded Firmware Development projects. Led by Michael Barr, a recognized embedded software author and former magazine editor-in-chief, giving prospective clients a public body of work to evaluate first.

Oxalis Design (4.0/5) is worth a look if you need RF and firmware co-design for a new connected consumer device. If your situation matches that, Oxalis Design is a competitive option.

Related comparisons

Barr Group vs Oxalis Design FAQ

Is Barr Group better than Oxalis Design?

Barr Group (4.5/5) scores higher overall, but "better" depends on your use case. Barr Group's strongest advantage: michael Barr's public technical writing and books give a prospective client a way to evaluate the team's judgment before ever making contact. Oxalis Design's strongest advantage: both founders remain personally involved in engineering work, not just business development.

How do Barr Group and Oxalis Design differ in pricing?

Barr Group uses consulting engagements, training courses, expert-witness services pricing. Oxalis Design uses project-based electronics and embedded engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Barr Group or Oxalis Design?

Barr 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 developer before shortlisting.

What are the main differences between Barr Group and Oxalis Design?

Barr Group's primary differentiator is: led by Michael Barr, a recognized embedded software author and former magazine editor-in-chief, giving prospective clients a public body of work to evaluate first. Oxalis Design's primary differentiator is: founder-led team where both founders remain personally involved in client engineering work, not just management. They also differ in team size (51–200 vs 2–10), minimum engagement (Not published vs Not published), and primary industries served (Medical devices, Industrial vs Medical devices, Consumer electronics).

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