Best Embedded Firmware Developers

DE Design Works vs EES: full comparison for 2026

Quick verdict

DE Design Works (4.2/5) edges ahead of EES (3.8/5) overall. DE Design Works is the better choice for teams needing engineers experienced with rugged industrial, medical, or military constraints. EES is the stronger option for teams deliberately avoiding a large delivery organization in favor of senior-led staff. The right choice depends on your project size, budget, and required tech stack.

DE Design Works vs EES: head-to-head summary

Criterion DE Design Works EES
Founded 2002 2012
HQ Chesterfield, MO, USA Tempe / Chandler, AZ, USA
Team size 11–50 3–50
Rating 4.2 / 5 3.8 / 5
Primary differentiator 23 years of continuous firmware and hardware work specifically for rugged industrial, medical, and military applications Explicitly positions itself as senior-led, keeping the team small by design rather than as a growth-stage limitation
Pricing model Project-based electronics and firmware engagements Contract engineering engagements
Min. engagement Not published Not published
Primary tech stack C, C++, Embedded Linux C, C++, Industrial Embedded Systems
Industries served Industrial, Medical devices, Military/defense, Consumer electronics Industrial

DE Design Works vs EES: overview

DE Design Works

DE Design Works was founded in 2002 and operates from Chesterfield, Missouri with a team in the 11 to 50 employee range. Firmware has been a core, continuous practice since the company's founding rather than a service added later, and the team's rugged industrial, medical, and military application experience means its engineers have handled the specific constraints those product categories impose, not just general firmware work. For a hiring manager staffing a ruggedized or regulated product, that's the kind of narrow, verifiable experience worth checking directly.

EES

Embedded Engineering Solutions (EES) was launched in 2012 and is based in Tempe, Arizona, with reported headcount varying across sources from roughly 3 to 50 employees, most consistently described as a small, senior-led firm. The company specializes in contract firmware, embedded systems, and hardware design engineering for the industrial sector, and its own positioning leans on being senior-led rather than layered with junior staff. For a hiring buyer specifically avoiding a large delivery organization, that's the stated value proposition, not an incidental trait.

Services and capabilities: DE Design Works vs EES

Capability DE Design Works EES
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: DE Design Works vs EES

Framework / platform DE Design Works EES
C
C++
FreeRTOS N/A N/A
Zephyr N/A N/A
FPGA N/A N/A
Embedded Linux N/A
LVGL N/A N/A
AWS IoT N/A N/A
ARM Cortex-M N/A N/A

Pricing comparison: DE Design Works vs EES

Criterion DE Design Works EES
Minimum engagement Not published Not published
Engagement models Project-based engineering Contract firmware and hardware engineering
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: DE Design Works vs EES

Dimension DE Design Works EES
Best company size Startup to mid-market Startup to mid-market
Best industries Industrial, Medical devices, Military/defense Industrial
Best use cases Staffing a ruggedized industrial or military device program with experienced engineers, Secure OTA update development for a fielded product Hiring a deliberately small, senior-led team for an industrial firmware program, Combined hardware and firmware engineering without separate specialist vendors
Typical project type Project-based engineering Contract firmware and hardware engineering

DE Design Works vs EES: pros and cons

DE Design Works
+ Firmware has been a stated core competency since the company's 2002 founding, not a later add-on
+ Rugged industrial, medical, and military application experience means the team has handled those specific product constraints before
+ 23 years of operating history gives a track record to reference-check against
+ In-house electronics and PCB design keep hardware and firmware engineers on the same team
- 11 to 50 employees limits concurrent capacity compared to larger teams
- Public case studies naming specific past programs are limited, so verifying track record needs direct reference requests
- No published pricing or minimum engagement threshold
EES
+ Explicit senior-led positioning means the small team size is a deliberate choice, not just a growth-stage limitation
+ 13 years of operating history as a contract engineering firm for the industrial sector
+ Combines firmware, embedded systems, and hardware design in one team, covering multiple disciplines without separate specialist hires
+ Small size means a client's engagement represents a meaningful share of the firm's total capacity
- Reported employee counts vary widely across sources, from roughly 3 to 50, worth confirming current headcount directly
- Small team size caps capacity for a large or multi-workstream program
- No published pricing or minimum engagement figure

Who should choose DE Design Works?

A typical fit: staffing a ruggedized industrial or military device program with experienced engineers.

23 years of continuous firmware and hardware work specifically for rugged industrial, medical, and military applications. Minimum engagement is not publicly disclosed. Works best with clients in Industrial, Medical devices, Military/defense, Consumer electronics.

Who should choose EES?

A typical fit: hiring a deliberately small, senior-led team for an industrial firmware program.

Explicitly positions itself as senior-led, keeping the team small by design rather than as a growth-stage limitation. Minimum engagement is not publicly disclosed. Works best with clients in Industrial.

Decision matrix: DE Design Works vs EES

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: DE Design Works (Not published) vs EES (Not published)
You need specialist depth in a specific vertical DE Design Works
You need staff augmentation or team extension Neither; consider alternatives that offer staff aug
You need consulting before committing to a build Both may offer discovery engagements

Use case fit: DE Design Works vs EES

Use case DE Design Works fit EES fit Winner
Staffing a ruggedized industrial or military device program with experienced engineers Strong Limited DE Design Works
Secure OTA update development for a fielded product Strong Limited DE Design Works
Hiring a deliberately small, senior-led team for an industrial firmware program Strong Strong Both equally
Combined hardware and firmware engineering without separate specialist vendors Strong Strong Both equally
Fixed-price build Limited Limited Both equally
Staff augmentation Strong Limited DE Design Works

Verdict: DE Design Works vs EES

DE Design Works (4.2/5) is the stronger overall choice for most Embedded Firmware Development projects. 23 years of continuous firmware and hardware work specifically for rugged industrial, medical, and military applications.

EES (3.8/5) is worth a look if you need combined hardware and firmware engineering without separate specialist vendors. If your situation matches that, EES is a competitive option.

Related comparisons

DE Design Works vs EES FAQ

Is DE Design Works better than EES?

DE Design Works (4.2/5) scores higher overall, but "better" depends on your use case. DE Design Works's strongest advantage: firmware has been a stated core competency since the company's 2002 founding, not a later add-on. EES's strongest advantage: explicit senior-led positioning means the small team size is a deliberate choice, not just a growth-stage limitation.

How do DE Design Works and EES differ in pricing?

DE Design Works uses project-based electronics and firmware engagements pricing. EES uses contract engineering engagements pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: DE Design Works or EES?

DE Design Works 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 DE Design Works and EES?

DE Design Works's primary differentiator is: 23 years of continuous firmware and hardware work specifically for rugged industrial, medical, and military applications. EES's primary differentiator is: explicitly positions itself as senior-led, keeping the team small by design rather than as a growth-stage limitation. They also differ in team size (11–50 vs 3–50), minimum engagement (Not published vs Not published), and primary industries served (Industrial, Medical devices vs Industrial).

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