What Desmi does

DESMI A/S is a Danish manufacturer of pumps and integrated pumping systems headquartered in Nørresundby, Denmark, with origins dating to 1834. The company operates across five business segments: Marine, New Green Solutions, Aquaculture, Defense, and Industry & Utility. Its product portfolio is built on centrifugal pump families (NSL, NSLV, NSLH, DSL, ESL series), the ROTAN® internal gear pump line (GP, HD, CD, ED, PD, CHD variants) with 50+ years of design heritage, and complementary integrated systems including CompactClean ballast water management, OptiSave™ energy optimization, FineFog™ firefighting, magnetic drive centrifugal pumps, triple screw pumps, and AquaShield UV water treatment for aquaculture. The company serves ship owners, naval forces, fish farms, utilities, chemical processors, district heating operators and industrial manufacturers with documented deployments at Vopak, HOFOR, Dubai Metro, Royal Danish Navy, UK Armed Forces, Doosan, Novozymes, and Kingfish among others.

The business operates a global GTM combining direct enterprise field sales through 20+ wholly-owned subsidiaries and regional offices with authorized distributor and specialized service partner channels such as Nordan Marine. Revenue is generated from hardware sales of pumps and integrated systems, plus professional services including engineering, commissioning, spare parts, and the DESMI 48 Fast Track rapid delivery program. Pricing is quote-based and not publicly disclosed. DESMI owns manufacturing and testbed facilities in Denmark (Nørresundby HQ and Samsø), China (Suzhou), Italy, Germany, and operates offices across Europe, North America, Asia Pacific, the Middle East and Africa. The company holds IMO/USCG type approvals for ballast water management systems, military specifications for naval products, and Cyber Essentials Plus certification. It is privately held, publishes annual reports, and has been an active participant in pump industry M&A through 2024-2025.

Name

Desmi

Legal name

DESMI A/S

Website

https://desmi.com

Company type

Private

Founded year

1838

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

DESMI is a Danish manufacturer of centrifugal and internal gear pumps plus integrated systems for ballast water management, firefighting, energy saving, and aquaculture UV treatment, serving marine, defense, industrial, utility, and aquaculture customers globally through direct offices in 20+ countries.

Ownership category

akta.pro rank

Product category

Industrial Pumps and Fluid Handling Systems

NAICS

Pump and Compressor Manufacturing (33391), Water Supply and Irrigation Systems (22131), Other Aquaculture (112519)

SIC

Pumps & Pumping Equipment (3561), Oil & Gas Field Machinery & Equipment (3533)

akta.pro primary industry

Centrifugal Pumps (IMAHANAA)

akta.pro secondary industry

Pumps & Plumbing Pump Accessories (Sump, Sewage, Booster) (IMADALAL)

Keywords

• Centrifugal pumps
• Marine pumping systems
• Ballast water management
• Industrial fluid handling
• Internal gear pumps

Headquarters

HQ city

Nørresundby

HQ country

Denmark

HQ region

Europe

Offices20 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Pump Sales: Sale of centrifugal pumps, gear pumps, magnetic drive pumps, and specialized pump systems for marine, industrial, aquaculture, defense and utility applications. Revenue generated from equipment sales with various configurations and sizes.
2. Systems and Solutions: Integrated systems including ballast water management systems, firefighting systems, energy saving systems (OptiSave), and aquaculture UV treatment systems.
3. After-Sales Service and Spare Parts: Genuine spare parts, spare parts kits, commissioning, testing services, and DESMI 48 Fast Track service for rapid pump delivery. Service contracts and maintenance support throughout pump lifetime.
4. Engineering Services: Engineering support including BWMS engineering, selection programs, commissioning, and technical documentation services.

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

DESMI manufactures and sells centrifugal pumps, internal gear pumps (ROTAN®), magnetic drive pumps, triple screw pumps, and integrated systems including ballast water management (CompactClean), energy optimization (OptiSave™), firefighting (FineFog™), and UV water treatment for aquaculture. The company serves marine, industrial, aquaculture, defense, and utility customers with engineered pumping solutions, spare parts, and after-sales service across more than 20 countries.

Product overview

DESMI is a Danish manufacturer specializing in the development, manufacture, and optimization of pumps and pumping systems for critical flow processes across five main segments: Marine, New Green Solutions, Aquaculture, Defense, and Industry & Utility. The product portfolio centers on centrifugal pumps (NSL, NSLV, NSLH, DSL, ESL series) and internal gear pumps under the ROTAN® brand (GP, HD, CD, ED, PD, CHD variants), complemented by specialized systems including CompactClean ballast water management systems, OptiSave™ energy saving systems, FineFog™ fire-fighting systems, and UV water treatment for aquaculture. The company also offers Magnetic Drive Pumps for sealless applications and Triple Screw Pumps for cargo handling. Services include the DESMI 48 Fast Track emergency delivery program and comprehensive after-sales support with genuine spare parts kits.

Differentiator

Problem solved

Functional benefit

Brands

• ROTAN®: Internal gear pump brand for various industrial applications including chocolate, asphalt, chemicals, and petrochemical fluids.
• CompactClean
• OptiSave™
• FineFog™
• DESMICloud
• AquaShield

Products and services

• NSL Centrifugal Pump Vertical in-line centrifugal pump with flow rates up to 2,400 m³/h (10,600 US gpm) for marine cooling, ballast, firefighting, and industrial uses such as district heating and cooling.
• NSLV Centrifugal Pump Vertical centrifugal pump with suction elbow design, flow rates up to 2,400 m³/h, suitable for marine and industrial cooling, ballast, and firefighting applications.
• NSLH Centrifugal Pump Horizontal centrifugal pump for medium to high flow applications up to 1,500 m³/h with head up to 150 m, used in cooling systems and engine cooling for marine and industrial settings.
• DSL Centrifugal Pump Double suction, in-line vertical centrifugal pump with flow rates up to 6,200 m³/h, designed for seawater intake, district heating/cooling, scrubber, and aquaculture applications.
• ESL Centrifugal Pump High-efficiency in-line centrifugal pump with flow rates up to 200 m³/h, designed for hot water circulation, cooling, HVAC, and aquaculture RAS applications.
• ROTAN® GP Internal Gear Pump General-purpose cast iron internal gear pump for clean, non-abrasive liquids including lube oil, glycol, and vegetable oil, with capacity up to 50 m³/h and viscosity up to 7,500 cSt.
• ROTAN® HD Internal Gear Pump Heavy-duty internal gear pump for difficult applications with viscous fluids including asphalt, chocolate, paint, molasses, and soap, with viscosity range up to 250,000 cSt.
• ROTAN® CD Internal Gear Pump Corrosion-resistant stainless steel internal gear pump designed for chemical applications handling corrosive liquids such as organic acids, alkalis, and fatty acids.
• ROTAN® ED Internal Gear Pump Magnetically coupled internal gear pump providing maximum protection against leaks, designed for hazardous organic liquids, solvents, and isocyanates with flow up to 90 m³/h.
• ROTAN® PD Internal Gear Pump Petrochemical duty internal gear pump with carbon steel pressure-containing components, designed for refinery and petrochemical applications including fuel, oil, gasoline, and bitumen.
• ROTAN® CHD Chocolate Pump Specialized internal gear pump designed for high-viscosity chocolate applications with special T2 tolerances and unique chocolate seal, handling pressures up to 12 bar.
• CompactClean Ballast Water Management System Ballast water treatment system with the smallest installation footprint in the industry, approved for operation worldwide, available in IMO/USCG compliant versions for ship owners.
• OptiSave™ Energy Saving System Energy optimization system that adjusts pump and fan speeds to current conditions, providing fuel savings for marine vessels with real-time monitoring capabilities.
• FineFog™ Fire-Fighting System Fixed water-based fire-fighting system designed for marine and industrial applications, providing effective fire suppression with water mist technology.
• Magnetic Drive Pumps Sealless magnetic drive centrifugal pumps designed for corrosive and volatile fluid handling, eliminating leak risks for demanding chemical and marine applications.
• Triple Screw Pumps K-Series Triple screw pumps designed for marine cargo handling, providing efficient fluid transfer for chemical and product tankers.
• Methanol Pumps Pumps specifically designed for methanol fuel handling in marine applications, supporting the transition to alternative marine fuels.
• Scrubber Pumps Pumps for exhaust gas scrubbing systems used to reduce SOx emissions from ships; DESMI is one of the world's largest scrubber solution suppliers.
• UV Water Treatment System UV-based water treatment system for aquaculture applications, providing chemical-free disinfection for fish farming operations.
• DESMICloud IoT monitoring and cloud platform for aquaculture operations, providing real-time data visualization and control for UV treatment and other aquaculture systems.
• DESMI 48 Fast Track Service Express service concept that delivers selected pumps within 48 hours for emergency replacement needs, minimizing vessel downtime.
• Genuine Spare Parts & After-Sales Service Comprehensive spare parts and after-sales service support throughout the pump lifecycle, including spare parts kits, commissioning, and a worldwide service network.
• Shock Rated Pumps Specially designed pumps for naval defense applications with shock rating capabilities to withstand extreme conditions on military vessels.
• Helicopter Refueling Systems Defense sector refueling systems for helicopter operations on naval vessels, meeting military specifications and safety requirements.
• Ballast Water Management System for Navy Vessels Specialized ballast water treatment system designed to meet the specific requirements of naval and military vessels.

Quantifiable outcome

• DESMI Pumps Move 100+ m³/h of North Sea Water for Kingfish aquaculture facility
• +4 more outcomes

Named customers20 records

Segments5 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Three partnerships are on record, tiered minor, core and major.

• Various Pump Companies (M&A Activity)minorOthers · 1 January 2024DESMI engaged in mergers and acquisitions across the pump industry in 2024 alongside companies like Svanehøj, PSG, Franklin Electric, Honeywell, and Alfa Laval for industrial, maritime, cryogenic, mining, water management, and defense sectors.
• Nordan Marine A/ScoreChannel Partner/ Reseller/ DistributorNordan Marine A/S handles all spare parts inquiries for gas cargo and fuel systems, serving as a specialized channel partner for DESMI's marine fuel and gas handling solutions.
• Irving ShipbuildingmajorStrategic or Co-development PartnerDESMI selected by Irving Shipbuilding for the River-class Destroyer program, indicating a strategic partnership for naval vessel pumping solutions.

Scale indicators5 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Grundfos: The world's largest pump manufacturer, headquartered in Denmark, and a named competitor to DESMI in the Norwegian centrifugal pump market. Overlaps directly across industrial, HVAC, district heating, water utility, and marine pump categories served by DESMI.
• Sulzer: Swiss-listed pump and rotating equipment manufacturer with a substantial centrifugal and process pump portfolio serving water, oil & gas, power, and industrial customers — closely comparable to DESMI's Industry & Utility and ROTAN® petrochemical pump lines.
• KSB: German pump and valve manufacturer explicitly named alongside DESMI in the Norwegian centrifugal pump market, with comparable offerings in industrial, water, and energy applications.
• Xylem: US-listed global water technology company with a major pump portfolio (including the legacy ITT and Flygt brands). Direct competitor in centrifugal pumps, water utility, and aquaculture-adjacent water handling as cited in the Norwegian market comparison.
• Flowserve: US-listed industrial pump and valve manufacturer serving oil & gas, power, chemical, and water markets. Highly comparable to DESMI's ROTAN® petrochemical and industrial process pump lines.
• Franklin Electric: US-listed water and pumping systems company active in groundwater, industrial, and fuel handling. Named in the 2024 pump sector M&A cohort alongside DESMI, with overlapping exposure to industrial and utility pumping.
• Wilo: German pump manufacturer focused on building services, water management, and industrial applications. Comparable to DESMI's centrifugal pump range, particularly in HVAC, district heating/cooling, and water utility contexts.
• Svanehøj: Danish marine pump specialist focused on cryogenic, fuel, and cargo pumps for LNG and product tankers. Direct competitor to DESMI in marine cargo and fuel handling pumps, and a named co-actor in 2024 pump sector M&A.

Broad incumbents

• Alfa Laval: Swedish industrial group with broad fluid handling, heat transfer, and marine equipment portfolios. Competes with DESMI in marine pumps, energy systems, and process industry fluid handling, and identified alongside DESMI as an active pump sector acquirer in 2024.
• PSG (Dover Corporation): Dover Corporation's pump solutions group encompassing Wilden, Blackmer, and Mouvex positive displacement and specialty pumps. Comparable to DESMI's ROTAN® and triple screw pump lines for chemical, petrochemical, and marine cargo applications; named alongside DESMI in 2024 sector M&A.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xfacebook.com/DESMIAS
• YouTubeyoutube.com/user/DESMIAS/featured
• Facebookfacebook.com/DESMIAS
• LinkedInlinkedin.com/company/desmi-as
• Instagraminstagram.com/desmi_a_s

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries10 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 Desmi