
Manufacturer of solutions for mobile road safety: warning lights, mobile barrier boards and VarioSign LED systems, made in-house in Tönning

Adolf Nissen Elektrobau GmbH + Co. KG
Tönning (DE) · Oberhofen/Bern (CH) · Szczecin (PL) · Vitoria (ES) · London (GB) · Pucking (AT)New on Amplifa
About Nissen
Adolf Nissen Elektrobau GmbH + Co. KG, based in Tönning (Schleswig-Holstein), develops and manufactures solutions for mobile road safety. The product range extends from basic products such as guide posts and warning lights to mobile barrier and advance warning boards, VarioSign LED variable message signs, trailers, mobile impact protection systems (TMA) and software for mobile traffic guidance systems including C-ITS roadwork warning systems. The steel and plastic elements of the products are manufactured in the company's own plant, complemented by electro-mechanical assembly, functional testing, painting in RAL colors, as well as administration and logistics at the headquarters. Customers include road construction companies, municipalities, winter maintenance services, fire departments and police. Around 250 employees work at the Tönning site; sales branches exist in Switzerland, Poland, Spain and the UK, and since 2017 Neuhauser Verkehrstechnik (Austria) has been part of the Nissen Group. The company is certified to ISO 9001, ISO 14001 and ISO 50001 as well as AEO-C.
- Site
- Tönning
- Processes
- In-house development and manufacture of steel and plastic elements, assembly/final assembly of, Electro-mechanical assembly and functional testing (lights, LED systems, electronics), Painting in RAL colors (supply/finishing for impact protection systems), In-house development and manufacturing (steel and plastic elements from our own plant), Technical support as well as on-site maintenance and repair, Training center / training courses on road safety, TL tests, Catalogs and consulting
- Materials
- Stahl, Kunststoff, Aluminium, Steel, Plastic, LED Technology
- Certificates
- DIN EN ISO 9001, DIN EN ISO 14001, AEO-C, DIN EN ISO 50001
- Founded
- 1914
- Employees
- ca. 250 (at the site
- Industries
- Road construction and mobile road safety, Construction sites and roadworks in road traffic, Municipalities and winter maintenance services, Fire departments and police, Motorway maintenance, Road construction and road traffic engineering / mobile road safety
- 01
Development and design
- 02
In-house manufacture of steel and plastic elements
- 03
Painting in RAL colors
- 04
Electro-mechanical assembly and functional testing (LED systems, electronics)
- 05
Software and telematics integration
- 06
Worldwide distribution logistics
- 07
Technical support, maintenance and training
Materials & Processes
Steel
Manufacture of steel elements for barrier boards, trailers and impact protection systems in the company's own plant.
Plastic
Plastic parts for warning elements for road safety, manufactured by the sister company NissenPlast.
Aluminium
Material for impact protection systems including painting in RAL colors.
LED Technology
Matrix-controlled LED panels in 4-color and RGB technology for programmable variable message signs.
Sites

Tönning
DEHeadquarters with development, production, administration and logistics
- Materials
- Steel, plastic, aluminium
- In-house manufacture of steel and plastic elements
- Electro-mechanical assembly
- Painting in RAL colors
Bern/Oberhofen
CHSales branch Nissen Switzerland (since 2004)
Szczecin
PLSales branch Nissen Polska (since 2004)
Vitoria
ESSales branch Nissen Ibérica for Spain and Portugal
London
GBSales branch Nissen UK (since 2004)
Pucking
ATNeuhauser Verkehrstechnik, part of the Nissen Group since 2017, general distributor for Austria
Products & Components




Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| In-house development and manufacture of steel and plastic elements, assembly/final assembly ofAssembly | – | – | – | – | Stahl, Kunststoff, Aluminium |
| Electro-mechanical assembly and functional testing (lights, LED systems, electronics)Assembly | – | – | – | – | – |
| Painting in RAL colors (supply/finishing for impact protection systems)Surface | – | – | – | – | Aluminium, Stahl |
Additional services
Quality & Certificates
Quality assurance has been certified to DIN EN ISO 9001 since 1995; developments are manufactured in CE-compliant quality and comply with the EU Machinery Directive. In addition, certifications to DIN EN ISO 14001, DIN EN ISO 50001 and AEO-C are held.
| Evidence | Tönning |
|---|---|
| DIN EN ISO 9001 | |
| DIN EN ISO 14001 | |
| DIN EN ISO 50001 | |
| AEO-C |
Company History
- 1914
Adolf Nissen begins developing ignition systems for passenger cars and files patents in several countries.
- 1950er
Entry into road safety; breakthrough with the first electric warning light.
- 1995
First certification of quality assurance to DIN EN ISO 9001.
- 2004
Founding of branches in Switzerland (Bern), Poland (Szczecin) and the UK (London).
- 2011
Certification to AEO-C.
- 2014
Certification of environmental management to DIN EN ISO 14001.
- 2017
Neuhauser Verkehrstechnik (Austria) becomes part of the Nissen Group.
- 2021
Certification of energy management to DIN EN ISO 50001 (September).
- 2025
Publication of the 2025 sustainability report (DNK reports 2023 and 2024).