Alfsen og Gunderson

What Alfsen og Gunderson does

Alfsen og Gunderson AS is a privately held Norwegian industrial process equipment supplier founded in 1926, headquartered in Oslo with a regional office in Bergen and 51–100 employees. The company operates seven core product areas — dust filtration, water treatment, material/powder handling, pumps, air dehumidification (sorption technology), drying systems, and felts and wires for paper machines — selling engineered equipment and complete systems primarily to enterprise customers across aquaculture, fish processing, oil & gas (onshore and offshore), power generation, LNG, municipal water and sewage, defense, pharmaceuticals, sawmills, aluminum/foundry, and other heavy-industry verticals in Norway, the Nordics, Europe, and globally. Its technical foundation is built on sorption-based dehumidification using proprietary Seibu Giken silica-gel rotors (a relationship dating to 1985 when AG was first in the world to produce silica rotors), multiple proprietary sorption principles (Recusorb, Consorb, Frigosorb, Econosorb, Aquasorb), and the proprietary AG ECO-Dryer system combining sorption dehumidification with CO2 heat pump technology for energy-efficient drying.

The company generates revenue primarily through one-time sale of custom-engineered equipment and integrated systems, supplemented by design-build-installation work for water treatment plants and aftermarket service and maintenance. GTM is direct enterprise field sales with specialized sales engineers per product area, supported by industry trade-show presence, a content/SEO website, and active LinkedIn/social media channels. AG holds ISO 9001:2015 and is pre-qualified via Magnet (Oil & Gas), Achilles Global Energy (NORSOK/IOGP), and Achilles Network for safety-critical and offshore tenders; it also offers ATEX-certified dehumidifiers and an inert-gas dryer (AG-IG) capable of −65 °C dew point for LNG vessels. A 2025 partnership with Haver Niagara extends its process-equipment footprint, and a dedicated China-market contact indicates active cross-border commercial intent. AG remains privately owned with no external investment disclosed; CEO Haakon L. Bryhn leads a multi-departmental organization structured around product lines (water treatment, dehumidification/drying, dust filtration, powder handling, pumps, PMC, automation).

Name

Alfsen og Gunderson

Legal name

Alfsen og Gunderson AS

Website

https://ag.no

Company type

Private

Founded year

1926

Operating status

Operating

Headcount range

51–100 employees

Short description

Alfsen og Gunderson is a privately held Norwegian industrial process equipment supplier founded in 1926, specializing in sorption-based air dehumidification, drying systems, water treatment, pumps, dust filtration, and material handling for enterprise customers across aquaculture, energy, oil & gas, LNG, and municipal water sectors in Norway and internationally.

Ownership category

akta.pro rank

Product category

Industrial Process Equipment

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Industrial Machinery Manufacturing (3332)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Industrial Drying & Evaporation Equipment (Dryers, Evaporators, Crystallizers) (IMAHAEAD)

akta.pro secondary industries

Dust Collection & Air Filtration Equipment (Industrial) (IMAHALAF), Emission Control & Scrubbing Equipment (Scrubbers, Dust Collectors, Catalytic Systems) (IMAHAEAK)

Keywords

• Industrial process equipment
• Air dehumidification systems
• Water treatment plants
• Dust filtration systems
• Drying systems

Headquarters

HQ city

Oslo

HQ country

Norway

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Industrial Equipment Sales: Sale of process equipment including dust filtration systems, water treatment plants, pumps, material handling systems, dehumidifiers, and drying systems. Equipment ranges from standard products to custom-designed complete systems.
2. Custom System Design and Integration: Design and delivery of complete filter systems and treatment plants for drinking water, process water, and wastewater. Includes construction, automation and electrical work, assembly supervision at customer sites worldwide.
3. Service and Maintenance: Preventive maintenance services, emergency response, and spare parts supply for all delivered equipment. Service department with expertise in air, water, and pump technology.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels8 records

Core offering

Alfsen og Gunderson AS (AG) is a Norwegian industrial process equipment supplier founded in 1926, specializing in sorption-based air dehumidification, drying systems, water treatment plants, dust filtration, material handling solutions, and pumps. The company designs, assembles, and delivers complete custom systems for industrial customers across Norway and internationally, including the proprietary AG ECO-Dryer combining sorption dehumidification with CO2 heat pump technology.

Product overview

Alfsen og Gunderson (AG) is a leading Norwegian supplier of process equipment for industrial applications. The company's portfolio centers on seven core product areas: Støvfiltrering (dust filtration), Vannbehandling (water treatment), Materialhåndtering (material/powder handling), Pumper (pumps), Luftavfuktning (air dehumidification), Tørkeanlegg (drying systems), and Filt og virer (felts and wires for paper machines). The dehumidification and drying systems represent the company's flagship offerings, with the proprietary AG ECO-Dryer combining sorption dehumidification with CO2 heat pump technology. Product lines include multiple dehumidifier series (DR, DC, RL, RLZ, CZ, Flexisorb, EFP) covering capacities from 300 to 61,000 m³/h air volume, tank dryers for chemical tankers, ATEX-certified units, and advanced drying systems (chamber dryers and tunnel dryers) for fish, wood, and industrial products. The company also offers proprietary control systems with remote monitoring capabilities and sources high-efficiency sorption rotors from Seibu Giken. Service and maintenance support is integral to the offering.

Differentiator

Problem solved

Functional benefit

Brands

• AG ECO-Dryer: Proprietary drying system combining sorption dehumidification with CO2 heat pump technology for energy-efficient drying applications.

Products and services

• AG ECO-Dryer Advanced drying system combining sorption dehumidification with CO2 heat pump technology for energy-efficient drying of fish, wood, and various industrial materials. Delivered to customers such as ABS AS and aquaculture operators.
• Industrial Sorption Dehumidifiers Industrial dehumidifiers based on sorption technology including DR, DC, RL, RLZ, CZ, Flexisorb, and EFP series covering capacities from 300 to 61,000 m³/h air volume. Includes ATEX-certified units for explosive environments, tank dryers for chemical tankers, and inert gas dryers capable of -65°C dew point for LNG vessels.
• AG Chamber Dryer (AG Kammertørke) Batch dryer system offering the most flexible drying solution for products including fish, fish products, macro algae, and fish sludge. Each chamber can be individually controlled.
• AG Tunnel Dryer (AG Langtørke) Continuous feeding dryer/tunnel dryer/channel dryer, the most commonly used method for clipfish production, featuring large air volume for even and faster drying.
• Dust Filtration Systems Dust filtration systems and plants designed for effective dust removal to meet regulatory requirements, optimize energy economy, and protect operators and processes. Used in aluminum, ferro, foundry, and mechanical industries.
• Water Treatment Plants Complete filter systems and treatment plants for drinking water, process water, and wastewater, designed for offshore, land-based industry, and municipal water/wastewater facilities.
• AQUAFIDES UV Disinfection Systems Type-approved UV disinfection systems for drinking water with lamp life up to 14,000 hours, biodosimetric tested and approved by the Norwegian Institute of Public Health.
• Material Handling Systems Complete program of solutions and components for handling powder and granules in production and industrial processes, meeting modern production facility requirements.
• Pumps Pump technology as a core business since 1926, representing world-leading manufacturers and delivering pumps for most applications. Complete skid-mounted solutions are a specialty.
• Industrial Vacuum Cleaners Industrial vacuum systems for dust and particle control in workplace environments.
• Felts and Wires for Paper Machines Technical textiles for paper machines, including felts and wires with heat treatment services for the paper machine clothing industry.
• Service and Maintenance Preventive maintenance services, emergency response, and spare parts supply for all delivered equipment. Service department with expertise in air, water, and pump technology, following up on both preventive service and acute crisis situations.

Quantifiable outcome

• 40-60% shorter drying time for aquaculture nets compared to previous methods
• +3 more outcomes

Named customers17 records

Segments14 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered minor and core.

• Haver NiagaraminorStrategic or Co-development Partner · 1 January 2025Alfsen og Gunderson entered into a new partnership with Haver Niagara. This appears to be a collaboration announced in 2025 for process equipment solutions.
• Seibu Giken DST ABcoreTechnology or IntegrationSeibu Giken from Japan is a key technology partner supplying sorption rotors for AG's dehumidifiers and drying systems. Seibu Giken was the first company in the world to produce silica rotors (1985) and is still the world leader in this technology. AG uses Seibu Giken's various rotor types including SSCR-U, D-Max, SSCR-H hygienic, SSCR-CI silicone-free, and SZCR zeolite rotors.
• ABS ASminorOthersCustomer partner in fish processing industry. ABS AS has been a customer since 2015, purchasing Econosorb dehumidifiers and later AG ECO-Dryer systems for klippfisk production.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Donaldson Company: Global manufacturer of filtration systems including industrial dust collectors. Overlaps with AG's dust filtration line as a larger incumbent with broader geographic reach.
• Atlas Copco: Global industrial equipment supplier with broad coverage in compressors, pumps, and process equipment. Comparable to AG in serving Norwegian industrial customers across multiple equipment categories.

Direct peers

• Stulz: German precision air conditioning and dehumidification specialist. Comparable to AG in providing engineered humidity control systems for industrial and mission-critical facilities.
• Nederman: Swedish industrial air quality and dust filtration specialist. Directly competes with AG's dust filtration product line for metalworking, aluminum, and foundry customers.
• Bry-Air: India-headquartered manufacturer of desiccant (sorption) dehumidifiers and dryers for industrial applications. Closely comparable technology stack and target end markets to AG.
• Condair Group: Swiss-based humidification and dehumidification specialist serving industrial and commercial customers. Comparable to AG in providing engineered humidity control solutions for process industries.
• Cotes International: Danish manufacturer of industrial adsorption dehumidifiers for offshore, marine, and process industries. Geographic neighbor with overlapping sorption technology and offshore customer base.
• Munters: Global leader in industrial air treatment and dehumidification, including sorption-based systems. Direct competitor to AG's dehumidifier and drying system lines across power, food, pharma, and offshore.

Others

• Seibu Giken: Japanese manufacturer of silica gel and zeolite sorption rotors — AG's core technology partner and the world leader in rotor technology since 1985. Strategic supplier, but also offers complete dehumidification systems, making it a partial competitor in rotor-based dehumidification.

Emerging players

• Trotec: German manufacturer of industrial dehumidifiers and air treatment equipment. Smaller-scale peer with overlapping sorption technology for drying and humidity control applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCdKMMtFQiv8k5yQD3SNFj7g
• Facebookfacebook.com/alfsenoggunderson
• LinkedInlinkedin.com/company/alfsen-og-gunderson-as
• Instagraminstagram.com/alfsenoggunderson

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 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 Alfsen og Gunderson