Kunbus
KUNBUS GmbH is a German industrial communications company that designs and manufactures the Revolution Pi open-source hardware platform, an industrial-grade Raspberry Pi-based product line of IIoT gateways, DIN-rail PCs, and modular controllers sold globally through 30+ distribution partners to industrial automation customers.
- Company typePrivate
- Founded2008
- HeadquartersDenkendorf, Germany
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
What Kunbus does
KUNBUS GmbH is a privately held German industrial communications specialist founded in 2008 in Denkendorf and now headquartered in Ostfildern. The company is the creator and commercial steward of the Revolution Pi platform, an open-source hardware product line that adapts Raspberry Pi compute architecture into industrial-grade DIN-rail devices, including IIoT gateways, small industrial PCs, and compact controllers, paired with a broad catalog of modular expansion modules for fieldbus, Ethernet, and I/O connectivity. Since founding, KUNBUS has cumulatively shipped more than 1,000,000 communication devices and operates two R&D offices in Ostfildern and Regensburg, with production based in Germany.
The company's business model is hardware-centric: revenue is generated through unit sales of Revolution Pi base devices and accompanying expansion modules, sold both directly to enterprise customers via the company website and through an international network of more than 30 distribution partners, resellers, and sales offices. Pricing is not publicly disclosed. The horizontal go-to-market targets industrial automation and IIoT use cases across factories, system integrators, and equipment builders seeking a cost-competitive, open, and modular alternative to proprietary PLC and edge controller platforms from incumbents such as Siemens, Beckhoff, or Wago. Distribution reach is the primary commercial lever, while product differentiation is built on the Raspberry Pi ecosystem's familiarity, modular configurability, German manufacturing quality, and the open-source developer community that surrounds the platform.
KUNBUS is led by founder-CEO Dr. Martin Kunschert, has 51-100 employees, and is privately held with no disclosed venture or institutional ownership. The company is currently investing in organizational scale-up, with active job openings and a recently initiated agile transformation intended to accelerate product development and decision-making. No revenue, funding rounds, or customer logos are publicly disclosed.
Kunbus firmographics
Firmographics- Name
- Kunbus
- Legal name
- KUNBUS GmbH
- Website
- https://kunbus.com
- Company type
- Private
- Founded year
- 2008
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- KUNBUS GmbH is a German industrial communications company that designs and manufactures the Revolution Pi open-source hardware platform, an industrial-grade Raspberry Pi-based product line of IIoT gateways, DIN-rail PCs, and modular controllers sold globally through 30+ distribution partners to industrial automation customers.
- Ownership category
- akta.pro rank
Kunbus industry classification
Industry- Product category
- Industrial Automation Hardware
- NAICS
- Electronic Computer Manufacturing (334111), Computer and Peripheral Equipment Manufacturing (3341), Computer Terminal and Other Computer Peripheral Equipment Manufacturing (334118), Other Communications Equipment Manufacturing (334290)
- SIC
- Electronic Computers (3571), Computer Communications Equipment (3576), Computer Peripheral Equipment, Nec (3577)
- akta.pro primary industry
- Industrial Embedded Computers (Box PCs) (HDACALAF)
- akta.pro secondary industries
- Embedded & Industrial Network Interfaces (PCIe/M.2/SOM/SoC NICs) (HDAFAEAI), Expansion Cards & Internal Add-ons (Sound, Capture, USB, RAID/HBA, NIC) (HDACAGAJ)
Keywords
Where Kunbus is headquartered
LocationHeadquarters
- HQ city
- Denkendorf
- HQ country
- Germany
- HQ region
- Europe
Offices2 records
Markets served
Kunbus business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Hardware Sales: Sale of Revolution Pi industrial-grade devices including IIoT gateways, DIN rail industrial PCs, and small controllers. Revenue generated from the sale of base units and expansion modules.
- Expansion Modules: Sale of modular expansion modules that allow customers to customize and extend their Revolution Pi devices for specific industrial automation and IIoT use cases.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
Kunbus product offering
Product offeringCore offering
KUNBUS designs, manufactures, and sells the Revolution Pi open source hardware platform — modular, industrial-grade devices based on Raspberry Pi that serve as IIoT gateways, DIN rail industrial PCs, or small controllers for industrial automation. The platform is complemented by a large selection of expansion modules enabling customers to customize implementations for data acquisition, processing, storage, and transmission in IIoT and Industry 4.0 projects.
Product overview
KUNBUS offers a single unified product line centered around the Revolution Pi platform - a modular open source hardware platform based on Raspberry Pi technology. The platform provides flexible, industrial-grade devices that function as IIoT gateways, DIN rail industrial PCs, or small controllers. A large selection of expansion modules enables customization for various automation and IIoT applications, allowing users to receive, store, process, and send data to increase productivity.
Differentiator
Problem solved
Functional benefit
Brands
- Revolution Pi: Open source hardware platform - a modular, industrial-grade device series based on the Raspberry Pi for implementing automation and IIoT projects. Includes IIoT gateways, DIN rail industrial PCs, and small controllers.
Products and services
- Revolution Pi Modular, industrial-grade open source hardware platform based on Raspberry Pi technology that can be configured as IIoT gateways, DIN rail industrial PCs, or small controllers, used by industrial companies and system integrators to implement automation and IIoT projects with data acquisition, storage, processing, and transmission capabilities.
Companies that use Kunbus
Customer profileSegments2 records
Ideal customer profiles1 record
Kunbus technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature2 records
Kunbus partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- International Distribution PartnerscoreKUNBUS maintains partnerships with 30+ international distributors, resellers, and sales partners for global distribution of Revolution Pi products.
Scale indicators3 records
Recent moves5 records
Expansion highlights4 records
Kunbus competitors and assessment
Company assessmentDirect peers
- OnLogic: OnLogic manufactures rugged industrial computers and edge computing hardware, including Raspberry Pi-based industrial systems. It directly competes with KUNBUS in the industrial embedded computing category serving automation, IIoT, and edge use cases.
- Eurotech: Eurotech offers rugged industrial PCs, IIoT gateways, and edge computing devices for industrial and transportation applications, directly comparable to KUNBUS's Revolution Pi gateway and DIN rail PC offerings.
- congatec: congatec provides embedded computing modules and Computer-on-Module solutions used in industrial applications. It is comparable to KUNBUS in industrial-grade embedded hardware, particularly for OEMs needing modular computing platforms.
- Syslogic: Syslogic is a Swiss-German specialist in rugged embedded industrial computers and Railway/automation-grade box PCs, comparable to KUNBUS in both product type and target market.
- Janz Tec: Janz Tec is a German manufacturer of industrial embedded computers, DIN rail PCs, and IoT gateways, closely comparable to KUNBUS in technology focus and target customers in German-speaking markets.
Broad incumbents
- Siemens: Siemens offers the SIMATIC line of industrial PCs, IIoT gateways, and edge controllers within its broader automation portfolio. It is a broad incumbent in the same industrial automation market that KUNBUS addresses.
- Wago: Wago manufactures industrial controllers, fieldbus I/O systems, and edge computing devices, directly overlapping with KUNBUS's industrial PC and IIoT gateway product categories.
- Advantech: Advantech is a major industrial PC and IoT platform vendor with broad product lines in DIN rail PCs, IIoT gateways, and embedded computing. It overlaps with KUNBUS's product surface area as a much larger incumbent.
- Phoenix Contact: Phoenix Contact provides industrial controllers, IIoT gateways, and fieldbus components from a broad industrial automation portfolio. It is a German incumbent competing with KUNBUS in DIN rail industrial computing and fieldbus connectivity.
- Beckhoff Automation: Beckhoff is a leading German industrial automation vendor offering DIN rail industrial PCs (CX series), controllers, and fieldbus solutions. It competes with KUNBUS in the German industrial PC market and shares the fieldbus/industrial Ethernet DNA.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks7 records
Key highlights7 records
Customer concentration
Kunbus social profiles
Digital presenceKunbus financial estimates
Financial estimateRevenue estimate
Valuation estimate
Kunbus leadership team
Management profileNumber of profiles
Profiles1 record
Kunbus funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Kunbus M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Kunbus
What does Kunbus do?
KUNBUS designs, manufactures, and sells the Revolution Pi open source hardware platform — modular, industrial-grade devices based on Raspberry Pi that serve as IIoT gateways, DIN rail industrial PCs, or small controllers for industrial automation. The platform is complemented by a large selection of expansion modules enabling customers to customize implementations for data acquisition, processing, storage, and transmission in IIoT and Industry 4.0 projects.
Is Kunbus a public or private company?
Kunbus is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Kunbus founded?
Kunbus was founded in 2008. It employs 51 to 100 people.
Where is Kunbus based?
Kunbus is headquartered in Denkendorf, Germany, in the Europe region.
How does Kunbus make money?
Two revenue lines are on record. Hardware Sales are the primary driver. The others are expansion Modules.
Who are Kunbus's main competitors?
Direct peers on record are OnLogic, Eurotech, congatec, Syslogic and Janz Tec. Broad incumbents are Siemens, Wago, Advantech, Phoenix Contact and Beckhoff Automation.
Does Kunbus have an API?
No public API is recorded for Kunbus.
What industry is Kunbus in?
Kunbus's product category is Industrial Automation Hardware. Its primary akta.pro industry code is HDACALAF, Industrial Embedded Computers (Box PCs), with a secondary code of HDAFAEAI, Embedded & Industrial Network Interfaces (PCIe/M.2/SOM/SoC NICs). Its NAICS code is 334111 and its SIC code is 3571.