What Marinfloc does

Marinfloc AB is a privately held Swedish limited company founded in 1995 by engineers Peter Lanzén and Benny Carlson and headquartered in Varekil, Sweden, where all products are designed and manufactured. The company specializes in wastewater treatment systems for the maritime and offshore sectors, built around proprietary flocculation technology adapted from municipal water treatment to handle the complex contaminant mixtures (oils, chemicals, metals, soot, sewage residues) found in vessel bilge, sewage, EGR bleed-off, and offshore slop streams. Its product portfolio spans bilge water separators (CD, TD Pre-Treatment, CD-EGR), the Neptumatic STS and ASTS sewage treatment plants, the Water Treatment System for MAN Energy Solutions EGR engines, offshore systems (Decanter Centrifuge, Deck Drain Separator, dRain unit), the Whitebox failsafe discharge monitoring unit, and digital compliance platforms MARS and Ocean Guardian. Systems are class-approved under IMO MARPOL standards including MEPC.107(49), MEPC.227(64) (including Baltic Sea §4.2), and MEPC.307(73), and are installed on thousands of vessels worldwide.

Name

Marinfloc

Legal name

Marinfloc AB

Website

https://marinfloc.com

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

11–50 employees

Short description

Marinfloc AB designs and manufactures flocculation-based wastewater treatment systems and digital compliance platforms for vessels, offshore platforms, and ports, serving shipowners and drilling operators worldwide under IMO MARPOL regulatory standards.

Ownership category

akta.pro rank

Product category

Marine Wastewater Treatment Equipment

NAICS

Waste Treatment and Disposal (56221)

SIC

Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Ballast Water, Bilge & Wastewater Treatment Systems (Environmental/Utility) (IMAJAIAJ)

akta.pro secondary industries

Environmental, Waste & Emissions Control Systems (Wastewater, VOC Capture, Spill Response) (IMAJALAK), Decentralized/Package Wastewater Systems (Small/Remote) (EUANADAE), Data Management, LIMS & Compliance Software (ELN, eDMS, reporting automation) (EUANAJAE)

Keywords

• Marine wastewater treatment
• Bilge water separators
• Sewage treatment plants
• EGR NOx water treatment
• Offshore water treatment

Headquarters

HQ city

Varekil

HQ country

Sweden

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Wastewater Treatment Equipment Sales: Sale of marine wastewater treatment systems including bilge water separators, sewage treatment plants, EGR water treatment systems, offshore water treatment systems, and discharge monitoring units. Equipment is designed and manufactured in Sweden at the Varekil facility.
2. Service Agreements (SAFE/SAFE+): Comprehensive lifetime service and support packages providing yearly onboard visits, equipment servicing, crew training, OCM calibration, 24/7 support, and access to MARS online portal. SAFE+ adds enhanced support and discounts on spare parts, consumables, and training.
3. After-Sales Support and Spare Parts: Tailored support for service, maintenance, and spare parts. Dedicated team available around the clock for assistance and guidance. Includes service bulletins and technical documentation for ongoing operations.
4. Digital Products (MARS): Cloud-based compliance monitoring and reporting platform providing real-time data, automated reports, fleet-wide monitoring, and digital certificate access for vessels.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Marinfloc designs, manufactures, and services engineered systems for treating and monitoring wastewater and waste streams generated on board vessels and offshore platforms. The product portfolio spans bilge water separators with flocculation and dissolved air flotation, EGR/NOx bleed-off water treatment units (including the CD-EGR dual-MARPOL-annex system), Neptumatic sewage treatment plants, offshore drilling-slop and deck-drain treatment systems (Decanter Centrifuge, Deck Drain Separator, dRain Unit), the WhiteBox discharge monitoring unit, shoreside port wastewater treatment, and the MARS / Ocean Guardian digital compliance platforms, supported by SAFE/SAFE+ lifetime service agreements.

Product overview

Marinfloc is a maritime wastewater treatment company offering a comprehensive portfolio of treatment systems for vessels and offshore platforms. The product portfolio includes: (1) Bilge Water Separators comprising the CD unit (oily water separator), CD Pre-Treatment Unit, TD Pre-Treatment Unit, and Whitebox discharge monitoring; (2) EGR NOx Water Treatment Systems including the WTS for MAN-ES EGR engines and the combined CD-EGR unit; (3) Sewage Treatment Plants including the Neptumatic STS and advanced Neptumatic ASTS; (4) Offshore Water Treatment systems including the Decanter Centrifuge, Deck Drain Separator, and dRain unit; (5) Digital Products including MARS cloud-based compliance platform and Ocean Guardian; (6) Shoreside Wastewater Treatment for port facilities; and (7) SAFE/SAFE+ service agreements. The company's solutions are built around flocculation technology and are designed and manufactured in Sweden at their Varekil facility. Marinfloc systems are installed on thousands of vessels worldwide and serve vessel types including cruise ships, ferries, commercial vessels, offshore platforms, drill ships, and FPSOs.

Differentiator

Problem solved

Functional benefit

Brands

• Whitebox: Failsafe overboard discharge monitoring and control unit designed to prevent non-compliant bilge water discharge, ensuring compliance with MEPC.107(49).
• MARS (Marinfloc Alert Report Support)
• Ocean Guardian
• SAFE/SAFE+
• Neptumatic

Products and services

• CD-EGR Combined Bilge Water and EGR Bleed-off Treatment System Class-approved single separator that simultaneously treats bilge water (MEPC.107(49)) and EGR bleed-off water (MEPC.307(73)) with automated segregation and distinct holding tanks, for shipowners integrating Tier III NOx compliance (MARPOL Annex VI Reg. 13.5).
• Water Treatment System (WTS) for MAN-ES EGR Engines Flocculation-based EGR bleed-off water treatment system for MAN-ES EGR engines that eliminates cartridge filters and centrifuges, with optional upgrade to also serve as a bilge water separator.
• TD Pre-Treatment Unit Pre-treatment unit that breaks down bilge water emulsions via flocculation and consistently achieves sub-15 ppm discharge, integrating with existing Oily Water Separators.
• CD Pre-Treatment Unit Pre-treatment system using flocculation and dissolved air flotation to assist existing oily water separators in meeting discharge limits, upgradable to an MEPC.107(49)-approved unit.
• Neptumatic STS Sewage Treatment System Compact marine sewage treatment plant that uses the vessel's holding tanks as bioreactors to treat both black and grey water, with a turbidity meter for real-time effluent monitoring, compliant with MEPC.227(64).
• Neptumatic ASTS Advanced Sewage Treatment System Advanced four-stage sewage treatment plant (mechanical separation, biological decomposition, chemical flocculation and forced flotation, and filtration with UV sterilization) fully compliant with MEPC.227(64) including Baltic Sea §4.2 for sensitive areas.
• Deck Drain Separator Onsite drill slop and deck drain water treatment system for offshore platforms using flocculation, designed to handle high solids from barite and bentonite and reduce transport of slop water to onshore facilities.
• dRain Unit Smart deck drain water management system with selective monitoring and a fluorescent oil content meter that routes contaminated water to holding tanks and discharges clean water overboard, with adaptive sampling for diverse maritime conditions.
• Decanter Centrifuge Centrifuge-based solids removal system for offshore slop water treatment that separates solids from water to prevent tank buildup and extend equipment lifespan.
• Whitebox Discharge Monitoring Unit Failsafe overboard discharge monitoring and control unit that continuously monitors oil content, valve settings, and flow metrics, integrates vessel GPS, and prevents non-compliant discharges per MEPC.107(49).
• MARS (Marinfloc Alert Report Support) Cloud Compliance Platform Cloud-based compliance and monitoring platform that integrates with Marinfloc equipment such as WhiteBox to provide real-time data, intelligent alerts, standardized reports, fleet-wide visibility, and inspection-ready documentation for PSC, USCG, SIRE, and ECP.
• Ocean Guardian Environmental Compliance Tool Digital environmental compliance tool that correlates vessel GPS location with a comprehensive regulatory database to ensure ships operate within environmental regulations, marketed in the US through Total Marine Solutions.
• Shoreside Port Wastewater Treatment System Shoreside wastewater treatment solution for ports handling black and grey water from passenger vessels; removes metals, BOD, COD, and phosphorus to meet strict environmental regulations protecting marine ecosystems.
• SAFE and SAFE+ Service Agreements Comprehensive lifetime service and support packages providing annual onboard visits, equipment servicing, crew training, OCM calibration, 24/7 support, MARS portal access, and spare parts support (with SAFE+ adding enhanced support and discounts on spare parts, consumables, and training).

Quantifiable outcome

• Discharge consistently below 15 ppm oil content (MEPC.107(49) standard)
• +3 more outcomes

Named customers1 record

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Two partnerships are on record, tiered core.

• Total Marine SolutionscoreChannel Partner/ Reseller/ DistributorTotal Marine Solutions is a US-based retailer that collaborated with Marinfloc to develop Ocean Guardian, a digital compliance solution that correlates vessel GPS location with a comprehensive regulatory database to ensure ships operate within environmental regulations. Total Marine Solutions distributes Ocean Guardian to US maritime customers.
• MAN Energy Solutions (MAN-ES)coreTechnology or IntegrationMAN Energy Solutions is an integration partner whose EGR (Exhaust Gas Recirculation) engines are supported by Marinfloc's Water Treatment System (WTS). Marinfloc's WTS has successfully conducted and passed factory tests in Denmark, China, and Korea for MAN-ES EGR engines to meet Tier III NOx emission standards per MARPOL Annex VI Regulation 13.5.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Jets Vacuum AS: Norwegian marine wastewater treatment specialist offering vacuum sewage and grey/black water systems for vessels and offshore. Closely comparable in product scope (sewage, black/grey water) and maritime customer base.
• Hamworthy Water Systems: Marine sewage treatment and freshwater generation specialist serving cruise ships, ferries, and offshore platforms. Direct competitor to Marinfloc's Neptumatic sewage treatment line for vessel black and grey water.
• RWO (Veolia) – Marine Water Technology: Marine water and wastewater treatment specialist (now part of Veolia) providing bilge water separators and sewage systems. Directly competes with Marinfloc in oily water separation and sewage treatment plants for commercial vessels.

Broad incumbents

• Alfa Laval: Global marine equipment incumbent offering Alfa Laval PureSOx and PureBilge separators and ballast water treatment systems. Competes directly with Marinfloc's bilge water separators and broader environmental portfolio but as part of a much larger marine equipment business.
• Wärtsilä: Major ship power and environmental solutions provider with freshwater generation, sewage treatment, and bilge handling systems. Comparable as a one-stop marine environmental equipment supplier serving shipyards and shipowners globally.
• Veolia Water Technologies (Veolia Marine): Global water treatment major with marine and offshore offerings including bilge, sewage, and produced water solutions. Comparable to Marinfloc in core wastewater treatment capability but at much larger scale and broader geographic footprint.

Emerging players

• Bilgwatcher / BWM Compliance Vendors: Ballast water management system providers such as Optimarin offer adjacent environmental compliance hardware for vessels. Comparable as a regulatory-driven marine environmental equipment peer pursuing the same compliance-driven shipowner wallet.
• Cathelco: Marine environmental engineering company offering sewage treatment, ballast water, and corrosion protection systems. Overlaps with Marinfloc in sewage and bilge water treatment for shipowners and offshore operators.
• ERMA FIRST: Greek ballast water treatment systems specialist with growing service network. Compares to Marinfloc as a focused environmental compliance vendor selling into the same global shipowner base.

Others

• Total Marine Solutions: US-based marine services retailer and Marinfloc's channel partner for the Ocean Guardian digital compliance product. Included as a distribution and ecosystem partner rather than a direct technology competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCMAzPzh-BpMQsuqB5W4wEtQ
• Facebookfacebook.com/groups/1773243572914455
• LinkedInlinkedin.com/company/marinfloc-ab

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Marinfloc