Best IoT Development Companies

Promwad vs Zühlke: full comparison for 2026

Quick verdict

Promwad (4.5/5) edges ahead of Zühlke (4.3/5) overall. Promwad is the better choice for mass-produced electronics, Linux and FPGA designs. Zühlke is the stronger option for regulated connected devices, medtech. The right choice depends on your project size, budget, and required tech stack.

Promwad vs Zühlke: head-to-head summary

Criterion Promwad Zühlke
Founded 2004 1968
HQ Vilnius, Lithuania and Essen, Germany Schlieren, Switzerland
Team size 100–150 1,500–2,000
Rating 4.5 / 5 4.3 / 5
Primary differentiator Two decades designing devices for volume production, with offices across five EU countries Swiss quality processes applied to connected medical and industrial products
Pricing model Fixed price, time and materials Time and materials, fixed price
Min. engagement Not published Not published
Primary tech stack Embedded Linux, Yocto, FPGA Embedded C/C++, Azure IoT, AWS IoT
Industries served Telecoms, Automotive, Industrial equipment, Consumer electronics, Energy Healthcare and medical devices, Industrial equipment, Financial services, Energy

Promwad vs Zühlke: overview

Promwad

Roman Pakholkov started Promwad in Minsk in 2004 to design mass-produced electronics on systems-on-chip and Linux, and the company later moved its business into the EU. Its Vilnius office, opened in 2016, became a headquarters, and a German entity in Essen now serves the DACH region. Promwad reports 100+ engineers, 500+ projects, and more than 3 million devices produced by its clients. Telecoms, automotive and FPGA work are its strongest areas.

Zühlke

Zühlke has engineered products in Switzerland since 1968 and now employs close to 2,000 people across Europe and Asia. Its IoT work concentrates on regulated products, especially medical devices, and on connected industrial equipment. The group combines embedded software and some electronics with cloud and app development. Nearshore centres in Serbia, Bulgaria, Portugal and Vietnam take part of the delivery.

Services and capabilities: Promwad vs Zühlke

Capability Promwad Zühlke
Electronics & PCB design ✓ ✓
Firmware & embedded software ✓ ✓
Wireless connectivity ✓ ✗
IoT cloud platforms ✓ ✓
Mobile & web apps ✗ ✓
Edge AI & data ✗ ✓
Prototyping & manufacturing support ✓ ✗
Dedicated team model ✗ ✗

Tech stack comparison: Promwad vs Zühlke

Framework / platform Promwad Zühlke
Embedded C ✓ ✓
Embedded Linux ✓ N/A
RTOS N/A N/A
BLE N/A N/A
LoRaWAN N/A N/A
AWS IoT N/A ✓
Azure IoT N/A ✓
FPGA ✓ N/A

Pricing comparison: Promwad vs Zühlke

Criterion Promwad Zühlke
Minimum engagement Not published Not published
Engagement models Fixed project, Time and materials Fixed project, Time and materials
Rate transparency Not public Not public
Price tier Mid-market Mid-market

Target audience comparison: Promwad vs Zühlke

Dimension Promwad Zühlke
Best company size Startup to mid-market Startup to mid-market
Best industries Telecoms, Automotive, Industrial equipment Healthcare and medical devices, Industrial equipment, Financial services
Best use cases A telecoms equipment maker needs a Linux-based gateway designed for volume production., An automotive supplier needs FPGA and camera-processing work. A medtech company needs a connected inhaler or injector developed under IEC 62304., An equipment maker wants a predictive maintenance platform.
Typical project type Fixed project Fixed project

Promwad vs Zühlke: pros and cons

Promwad
+ Designs with mass production in mind, including manufacturing support
+ Strong embedded Linux and FPGA skills for complex devices
+ EU entities in Lithuania and Germany simplify contracting for European buyers
- Belarusian origins may need explaining to some procurement teams, though operations have moved to the EU
- Cloud and app development are thinner than its hardware and firmware work
- Small team limits parallel projects
Zühlke
+ Strong experience with software regulated under medical device standards
+ Mix of Swiss and nearshore delivery
+ Covers the device, the cloud and the apps
- Rates sit at the top of the European range
- Electronics design is less central than at dedicated hardware houses

Who should choose Promwad?

A typical fit: a telecoms equipment maker needs a Linux-based gateway designed for volume production.

Two decades designing devices for volume production, with offices across five EU countries. Minimum engagement is not publicly disclosed. Works best with clients in Telecoms, Automotive, Industrial equipment, Consumer electronics, Energy.

Who should choose Zühlke?

A typical fit: a medtech company needs a connected inhaler or injector developed under IEC 62304.

Swiss quality processes applied to connected medical and industrial products. Minimum engagement is not publicly disclosed. Works best with clients in Healthcare and medical devices, Industrial equipment, Financial services, Energy.

Decision matrix: Promwad vs Zühlke

Your situation Recommended choice
You need full-ownership delivery on a defined project scope Promwad
You need a large dedicated team for an ongoing programme Check each company's engagement model
Your budget is at the lower end Compare: Promwad (Not published) vs Zühlke (Not published)
You need specialist depth in a specific vertical Promwad
You want engineers added to your own in-house team Neither lists team extension; ask about dedicated teams
You need the circuit board designed as well as the firmware Promwad

Use case fit: Promwad vs Zühlke

Use case Promwad fit Zühlke fit Winner
A telecoms equipment maker needs a Linux-based gateway designed for volume production. Strong Limited Promwad
An automotive supplier needs FPGA and camera-processing work. Strong Limited Promwad
A medtech company needs a connected inhaler or injector developed under IEC 62304. Limited Strong Zühlke
An equipment maker wants a predictive maintenance platform. Limited Strong Zühlke
You need custom electronics designed, not only firmware Strong Strong Both equally
You want a fixed-price first phase before a longer engagement Strong Strong Both equally

Verdict: Promwad vs Zühlke

Promwad (4.5/5) is the stronger overall choice for most IoT Development projects. Two decades designing devices for volume production, with offices across five EU countries.

Zühlke (4.3/5) is worth a look in a scenario like this: an equipment maker wants a predictive maintenance platform. If your situation matches that, Zühlke is a competitive option.

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Promwad vs Zühlke FAQ

Is Promwad better than Zühlke?

Promwad (4.5/5) scores higher overall, but "better" depends on your use case. Promwad's strongest advantage: designs with mass production in mind, including manufacturing support. Zühlke's strongest advantage: strong experience with software regulated under medical device standards.

How do Promwad and Zühlke differ in pricing?

Promwad uses fixed price, time and materials pricing. Zühlke uses time and materials, fixed price pricing. Neither firm publishes a full rate card; a discovery call is required for project-specific quotes.

Which is better for enterprise: Promwad or Zühlke?

Zühlke is the larger team and typically the better enterprise-scale choice. For very large programmes, verify team size and compliance coverage directly with each company before shortlisting.

What are the main differences between Promwad and Zühlke?

Promwad's primary differentiator is: two decades designing devices for volume production, with offices across five EU countries. Zühlke's primary differentiator is: swiss quality processes applied to connected medical and industrial products. They also differ in team size (100–150 vs 1,500–2,000), minimum engagement (Not published vs Not published), and primary industries served (Telecoms, Automotive vs Healthcare and medical devices, Industrial equipment).

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