What Stuhrenberg does

Stührenberg GmbH is a privately held, family-owned German electronics company founded in 1962 and headquartered in Detmold, specializing in road traffic engineering and lighting technology. The company designs and manufactures traffic signal control units (STm.5 and STm.neo, certified to SIL3 and TÜV standards), modular signal transmitters (STvario), a regional traffic monitoring and control platform (ReTCon in Online, Center, and Compact variants), GPS-based emergency vehicle priority systems (STGPS FreeWay), C-ITS/V2X roadside units, and an LED street lighting line (VIATEC-LED). Its products are deployed primarily at German municipal intersections, with additional applications for public transport operators and street/area lighting customers.

The company's business model combines proprietary hardware sales with project-based installation services and a 24/7 managed maintenance offering delivered through a Germany-wide service network anchored at its Detmold headquarters and branch offices in Gera, Berlin, Augsburg, and Switzerland. Distribution is direct-to-customer (enterprise field sales) with a network of over 20 installation and civil engineering partner companies. The pricing model is not publicly disclosed and operates via project quotations to municipalities and enterprises.

Operationally, Stührenberg sustains in-house R&D, manufacturing, and software development in Germany, supported by training facilities at Forum Gera and research partnerships with DLR and the Hanning & Kahl rail technology firm. The company is positioning for the cooperative intelligent transport transition through C-ITS/V2X product development and research pilots (e.g., the KIVI project in Ingolstadt), while maintaining independence as a family-owned enterprise without external venture or private equity ownership.

Name

Stuhrenberg

Legal name

Stührenberg GmbH

Website

https://stuehrenberg.de

Company type

Private

Founded year

1962

Operating status

Operating

Headcount range

51–100 employees

Short description

Stührenberg is a German family-owned electronics company, founded in 1962, that designs and services certified traffic signal controllers, traffic management platforms, C-ITS/V2X components, and LED street lighting for German municipalities and public transport operators.

Ownership category

akta.pro rank

Product category

Traffic Engineering / Intelligent Transportation Systems

NAICS

Electric Lighting Equipment Manufacturing (33513), Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing (335132), Power and Communication Line and Related Structures Construction (237130)

SIC

Electric Lighting & Wiring Equipment (3640), Measuring & Controlling Devices, Nec (3829)

akta.pro primary industry

Traffic Systems & Road Safety Infrastructure (Signals, ITS, Barriers, Signage, Markings) (IMAFAEAI)

akta.pro secondary industries

Connected Vehicle & V2X Traffic Operations (RSUs, SPaT/MAP, CV Applications) (TLAJACAJ), Road Lighting & Visibility Safety Systems (Street Lighting, High-Mast, LED Upgrades, Solar Beacons) (TLAJAGAD), Street Lighting & Area Lighting EPC / Maintenance (EUAEACAH)

Keywords

• Traffic signal systems
• Intelligent transportation
• Traffic control units
• LED street lighting
• Traffic management software

Headquarters

HQ city

Detmold

HQ country

Germany

HQ region

Europe

Offices5 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Traffic Control Hardware: Sale of proprietary traffic signal control units (STm.5, STm.neo, STGPS FreeWay), signal transmitters (STvario), and traffic management systems (ReTCon variants)
2. LED Lighting Systems: Sale of VIATEC-LED lighting products for street, industrial, and public area illumination
3. Installation Services: Professional installation of traffic and lighting systems including civil engineering, electrical work, and project management
4. Maintenance and Repair: 24/7 after-sales service, preventive maintenance, troubleshooting and repairs for installed systems throughout Germany

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Stührenberg GmbH designs, manufactures, and services road traffic engineering equipment and lighting systems for municipalities and public transport operators. The product portfolio includes proprietary traffic signal control units (STm.5/STm.6, STvisio), modular signal transmitters (STvario), the ReTCon traffic monitoring and control platform, GPS-based emergency vehicle priority systems (STGPS FreeWay), C-ITS/V2X roadside units, and VIATEC-LED street lighting. The company also provides end-to-end project services including planning, installation, and 24/7 maintenance across Germany.

Product overview

Stührenberg offers a comprehensive portfolio of road traffic engineering and lighting technology products. The core platform consists of ReTCon (Regional Traffic Control), a modular traffic monitoring and control system available in three variants (Online for cloud access, Center for full city control, and Compact for outdoor deployment). This platform connects to STm-series control units (STm.5, STvisio, STGPS FreeWay) that manage individual intersections, supplemented by STvario modular signal transmitters. Smart Controlling Mobile Apps (StView, LsaGraph, VS-App) enable wireless configuration via WLAN. C-ITS products support vehicle-to-infrastructure communication. The VIATEC-LED system provides energy-efficient LED street lighting. Services include full lifecycle support from planning through 24/7 maintenance.

Differentiator

Problem solved

Functional benefit

Brands

• ReTCon: Modular traffic monitoring and control system (Regional Traffic Control) available in Online, Center, and Compact variants.
• VIATEC-LED
• STm.5
• STm.6
• STvisio
• STGPS FreeWay
• Stührenberg RSU
• Stührenberg Academy

Products and services

• STvario Signal Transmitter System Modular signal transmitter system for road traffic signal control, providing flexible signal head configuration for diverse traffic management scenarios at intersections.
• STm Series Traffic Control Units Fail-safe dual-channel microprocessor traffic signal controllers supporting 24-60 monitored signal groups and up to 240 detector inputs, certified to SIL3 and TÜV standards, with OCIT 1.x-3.x interface support.
• STvisio Touch Display Control 7-inch touch display interface for STm.5/STm.6 control units with intuitive navigation, animated site plan visualization showing signal groups and detectors, and optional Android tablet mobile terminal support.
• STGPS FreeWay Emergency Vehicle Priority System GPS-based control system providing preferential green signal switching for emergency vehicles (fire brigade, police, ambulance) by detecting vehicle position and automatically clearing intersections along a route.
• ReTCon Traffic Monitoring and Control Platform Modular Regional Traffic Control platform available in three variants: ReTCon.Online (cloud/web-based), ReTCon.Center (full city control center), and ReTCon.Compact (outdoor traffic computer supporting up to 30 light signal system connections via dedicated line or DSL/fiber optic).
• Smart Controlling Mobile Apps Smartphone and tablet applications (StView, LsaGraph, VS-App) enabling wireless communication with traffic signal systems via WLAN adapter for field maintenance, diagnostics, parameter editing, and signal pattern analysis.
• C-ITS Cooperative Intelligent Transport Systems Vehicle-to-infrastructure communication systems including Stührenberg RSU (Roadside Unit) for real-time MAP/SPAT data exchange between vehicles and traffic infrastructure, and Topologie/MAPs for generating DiMAP and C-ROADS compliant MAP files.
• VIATEC-LED Lighting System Energy-efficient LED street and area lighting system delivering up to 90% energy savings, 60,000+ hour lifespan, intelligent control via Powerline communication or motion detection sensors, and IP65-rated aluminum housing for streets, industrial facilities, and public spaces.
• Traffic Planning, Installation, and Maintenance Services End-to-end project services including traffic planning, project management, civil engineering and electrical installation, and 24/7 after-sales maintenance and repair services for traffic and lighting systems throughout Germany.

Quantifiable outcome

• Energy savings up to 90% with VIATEC-LED compared to conventional lighting
• +2 more outcomes

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature6 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Deutsches Institut für Luft- und Raumfahrt (DLR)coreStrategic or Co-development Partner · 15 March 2018Partnership with DLR Institute for Transport System Technology. On March 15, 2018, Stührenberg provided DLR with LSA control unit including test field for research and demonstration purposes. Ongoing collaboration for intelligent traffic signal research.
• Hanning & KahlcoreStrategic or Co-development Partner · 1 November 2017Kooperationsvereinbarung (cooperation agreement) signed November 2017 between Stührenberg GmbH and Hanning & Kahl. Described as 'Kompetenz aus Lippe' (competence from Lippe), indicating regional strategic partnership for traffic technology solutions.
• Digitales NRW / Modellregion OWLminorStrategic or Co-development PartnerParticipation in Digital NRW model region OWL for pilot project at Schlosskreuzung, Paderborn. Project focused on intelligent traffic flow control through continuous traffic data collection using innovative sensor technology and optimization algorithms.
• Electrical Installation and Civil Engineering PartnersminorChannel Partner/ Reseller/ DistributorNetwork of over 20 partner companies - electrical installation businesses and civil engineering companies that support Stührenberg in implementing infrastructure projects. Long-term cooperation on equal footing.

Scale indicators3 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• SWARCO: Austrian-headquartered traffic technology group offering signal controllers, V2X/RSU, LED road lighting, and full-service installation across Europe. Most direct competitor to Stührenberg, operating at a significantly larger scale and geographic footprint.
• Yunex Traffic: Former Siemens Intelligent Traffic Systems, now part of Atlantia/Mundys. Offers traffic controllers, urban traffic management, and connected vehicle solutions globally—competing head-to-head with Stührenberg in German municipal tenders.
• SIGNALBAU HUBER: German traffic engineering specialist providing traffic signal systems, control units, and traffic management software. Closest domestic peer to Stührenberg in terms of product scope and target customers.
• Lacroix Group: French traffic technology company producing signal heads, controllers, and connected mobility solutions for European municipalities. Comparable in size and product breadth to Stührenberg, with stronger French-market penetration.

Broad incumbents

• Kapsch TrafficCom: Austrian-listed provider of intelligent transportation systems, tolling, and connected vehicle solutions. Competes in V2X/RSU and urban traffic management alongside Stührenberg, but with a much broader portfolio including highway tolling.
• Siemens Mobility: Global incumbent in rail and road traffic technology, offering signal controllers, traffic management, and V2X through its former Yunex unit. Competes for large German municipal and operator tenders alongside Stührenberg.
• Signify (Philips Lighting): Global leader in LED lighting including street and area lighting via its Signify/Interact portfolio. Overlaps with Stührenberg's VIATEC-LED offering at the lighting-fixture layer, though without the traffic-control systems integration.

Others

• AECOM: Global infrastructure consultancy that designs, plans, and supervises traffic and ITS deployments for public-sector clients. Adjacent to Stührenberg as a systems-integration and planning partner rather than a competing vendor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Stuhrenberg