
Manufacturer of safety, marine and plant signage as well as advertising technology and industrial signage
Marahrens Group
Bremen · Turku · Miami · Shanghai · Singapore · TallinnNew on Amplifa
About Marahrens Group
The Marahrens Group is a specialist for signage and advertising technology founded in Bremen in 1950. The company manufactures guidance systems and building signage, safety signs and notices, plant identification made of signs, labels and plaques, industrial signs and housing parts for 19-inch technology as well as decorative signage. A key focus is marine signage for cruise ships and yachts, including wayfinding signs, cabin signs, ship names and IMO safety signs. The value chain covers development and design, production — including screen printing following the takeover of the screen printing specialist Helmut Porsch — as well as installation, service and assembly. In addition to the headquarters in Bremen, there is a production and warehouse facility in Turku (Finland), a branch with high manufacturing depth in Miami (USA) as well as warehouse and agency locations in Shanghai and Singapore. Through a stake in Adfactory in Tallinn (Estonia), illuminated advertising systems are also produced. Customers come from the maritime industry, industrial plant engineering, building technology, construction sites and public institutions.
- Site
- Bremen
- Processes
- Guidance systems and building signage, Accessibility, raised print & Braille signage, Advertising technology, 19-inch technology / industrial signs and housing parts, Safety signs & information signs, Marine signage (wayfinding, cabin signs, ship names, IMO safety signs), Plant identification (signs, labels, plaques), Installation & service / assembly of signage
- Materials
- Screen printing, Illuminated advertising systems
- Founded
- 1950
- Industries
- Maritime industry (cruise ships, yachts), Industrial plants, Building technology, Construction sites, Public institutions
- 01
Design and development
- 02
Production (including screen printing)
- 03
Assembly
- 04
Installation & service
Processes and Manufacturing Focuses
Screen printing
Process for printing signs and labels, strengthened by the takeover of the specialist Helmut Porsch in 2024.
Illuminated advertising systems
Manufacture of illuminated advertising systems through the stake in Adfactory in Tallinn.
Locations
Bremen
DEHeadquarters, manufacturing, administration
Turku
FIProduction and warehouse for marine standard signs and custom-made products
Miami
USBranch with high manufacturing depth for the American market
Shanghai
CNExclusive agent and warehouse
Singapore
SGWarehouse / agent
Tallinn
EEStake in Adfactory, production of illuminated advertising systems
Products and Components





Inside the production




Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Guidance systems and building signageAssembly | – | – | – | – | – |
| Accessibility, raised print & Braille signageAssembly | – | – | – | – | – |
| Advertising technologyAssembly | – | – | – | – | – |
| 19-inch technology / industrial signs and housing partsAssembly | – | – | – | – | – |
| Safety signs & information signsAssembly | – | – | – | – | – |
| Marine signage (wayfinding, cabin signs, ship names, IMO safety signs)Assembly | – | – | – | – | – |
| Plant identification (signs, labels, plaques)Assembly | – | – | – | – | – |
| Installation & service / assembly of signageAssembly | – | – | – | – | – |
| Screen printing (takeover of screen printing specialist Helmut Porsch)Surface | – | – | – | – | – |
| Manufacture of illuminated advertising systems (stake in Adfactory, Tallinn)Assembly | – | – | – | – | – |
| Production of standard signs and custom-made products (Turku)Assembly | – | – | – | – | – |
| Manufacturing with high manufacturing depth (Miami)Assembly | – | – | – | – | – |
| Development and design of signage solutionsEngineering | – | – | – | – | – |
Additional services
History
- 1950
Marahrens was founded in Bremen (75th anniversary in 2025)
- 2017
Foundation of the branch in Miami
- 2024
Takeover of the screen printing specialist Helmut Porsch
- 2024
Relocation of the site in Turku, Finland
Stake in Adfactory in Tallinn, Estonia