
Development, manufacturing and service of the HI-FOG® high-pressure water mist fire protection system for marine and land applications.
Marioff Corporation Oy
Vantaa (FI) · Kerava (FI) · Berlin (DE) · Pero (IT) · Madrid (ES)New on Amplifa
About Marioff
Marioff Corporation Oy is a Finnish company based in Vantaa that specialises in high-pressure water mist fire protection systems. Its core product is the HI-FOG® system, offered since 1991, which fights fires effectively using significantly less water than conventional extinguishing systems. The company develops, manufactures, installs and maintains the systems entirely in-house, from project engineering and turnkey deliveries to upgrades and lifecycle services. Headquartered in Vantaa; the factory and logistics centre are located in Kerava, about 30 minutes from Helsinki Airport. Subsidiaries in Germany (Marioff GmbH, Berlin), Italy, Spain, China, France, Sweden, the UK and North America, along with certified partners, serve customers worldwide. Typical applications are ships (accommodation and service spaces, machinery rooms, Ro-Ro decks, deep fryers and ducts) as well as land applications such as hotels.
- Site
- FI-01511 Vantaa
- Processes
- Development, design and manufacture of HI-FOG® high-pressure water mist fire protection systems, Assembly of HI-FOG water mist fire extinguishing systems, Installation and commissioning of water mist fire protection systems (turnkey deliveries), Maintenance, service and lifecycle services for water mist fire protection systems, Design and sales of fire protection systems including sprinkler systems, water mist, foam, gas,, Design and development of high-pressure water mist fire protection systems (HI-FOG), Turnkey deliveries and installation, Commissioning
- Materials
- HI-FOG 3000 Sprinkler, High-Pressure Water Mist Technology
- Certificates
- ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 9001, ISO 14001, ISO 45001
- Founded
- 1985
- Employees
- several hundred
- Industries
- Marine/Shipping, Land applications (incl. hotels), Marine/Shipping (accommodation and service spaces, machinery rooms, Ro-Ro decks,, Land/on shore (incl. hotels, e.g. Hipotels Playa de Palma)
- 01
Engineering and system design
- 02
Manufacturing in Kerava
- 03
Assembly (incl. Marioff S.r.l., Pero)
- 04
Turnkey delivery and installation
- 05
Commissioning
- 06
Maintenance and lifecycle services
Technology and Processes
HI-FOG 3000 Sprinkler
Sprinkler with heat-sensitive glass bulb, type-approved by all major classification societies.
High-Pressure Water Mist Technology
Extinguishing technology that simultaneously addresses oxygen, heat and fuel while consuming significantly less water.
Locations

Vantaa
FIHead Office

Kerava
FIFactory and logistics centre
Berlin
DEMarioff GmbH: sales, design, installation, maintenance, service
Pero (MI)
ITMarioff S.r.l.: manufacturing, assembly, service
Madrid
ESMarioff HI-FOG, S.L.: design, sales, installation, maintenance
System Components



Inside the production





Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Development, design and manufacture of HI-FOG® high-pressure water mist fire protection systemsEngineering | – | – | – | – | – |
| Assembly of HI-FOG water mist fire extinguishing systemsAssembly | – | – | – | – | – |
| Installation and commissioning of water mist fire protection systems (turnkey deliveries)Assembly | – | – | – | – | – |
| Maintenance, service and lifecycle services for water mist fire protection systemsTesting | – | – | – | – | – |
| Design and sales of fire protection systems including sprinkler systems, water mist, foam, gas,Engineering | – | – | – | – | – |
Additional services
Reference customers
Quality
Marioff operates certified management systems in accordance with ISO 9001, ISO 14001 and ISO 45001 at all locations; certifications are carried out by DNV, TÜV Rheinland, Bureau Veritas, Cámara Certifica and Intertek.
| Evidence | Vantaa/Kerava | Berlin | Pero | Madrid |
|---|---|---|---|---|
| ISO 9001 | ||||
| ISO 14001 | ||||
| ISO 45001 |
History
- 1985
Founded with a background in marine and offshore high-pressure hydraulics; the name is derived from MARIne and OFFshore.
- 1991
Market launch of the HI-FOG® high-pressure water mist fire protection system.
- 2003
Initial ISO 9001 certification by DNV (18.11.2003).
- 2016
Initial certification of the Spanish subsidiary Marioff HI-FOG, S.L. by Cámara Certifica.
- 2021
Initial certification of Marioff GmbH Berlin by TÜV Rheinland.
- 2024
ISO 9001 recertification (DNV) for Marioff Corporation Oy; 40 years of company history.
- 2025
Initial certification of ISO 14001 and ISO 45001 by DNV (25.06.2025).