# Top 50 companies with in-house R&D in Norway
Tamtam tracks 162 companies with in-house R&D headquartered in Norway. This list ranks the 50 largest by number of employees on LinkedIn, led by DNV, Aker Solutions and Equinor. Their median headcount is 2,060. Half of them were founded in 1946 or later. The most common headquarters are Oslo (14), Bergen (5) and Stavanger (4).
These Norwegian companies with in-house R&D are primarily large groups, with a strong presence in energy, maritime, and academic sectors. DNV is a global expert in risk management, while Aker Solutions provides integrated products for oil, gas, and renewable energy. Equinor develops oil, gas, wind, and solar energy, and Yara International focuses on sustainable crop nutrition. Norsk Hydro is involved in aluminium production and energy, and Jotun manufactures paints.
A notable pattern is the concentration of headquarters in Oslo, which hosts Yara International, Norsk Hydro, Oslo University Hospital, and Visma. Other significant locations include Stavanger for Equinor, Trondheim for NTNU, and Kongsberg for Kongsberg Maritime and KONGSBERG, indicating diverse regional hubs for R&D activities.
π³π΄ Norway Β· 50 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [DNV](https://www.tamtam.ai/c/dnv) (dnv.com)
A global expert in risk management and assurance, setting industry benchmarks, inspiring solutions, and enabling critical decisions for safety and sustainability | Public Safety | π³π΄ HΓΈvik | 22,634 | |
| 2 | [Aker Solutions](https://www.tamtam.ai/c/aker-solutions) (akersolutions.com)
Provides integrated products and services for oil, gas, and renewable energy sectors, focusing on sustainable and low-carbon energy solutions. | Oil and Gas | π³π΄ Fornebu | 16,998 | |
| 3 | [Equinor](https://www.tamtam.ai/c/equinor) (equinor.com)
Develops oil, gas, wind, and solar energy across over 30 countries, a major offshore operator and growing in renewables. | Oil and Gas | π³π΄ Stavanger | 16,638 | 1972 |
| 4 | [Yara International](https://www.tamtam.ai/c/yara-international) (yara.com)
A global company focused on sustainable crop nutrition, low-emission energy solutions, and creating a more efficient and nature-positive food value chain | Farming | π³π΄ Oslo | 15,349 | |
| 5 | [Norsk Hydro](https://www.tamtam.ai/c/norsk-hydro) (hydro.com)
Development of sustainable industries including aluminium production, energy, metal recycling, renewables, and batteries with global operations and innovation focus. | Mining | π³π΄ Oslo | 13,192 | 1905 |
| 6 | [Norwegian University of Science and Technology (NTNU)](https://www.tamtam.ai/c/norwegian-university-of-science-and-technology-ntnu) (ntnu.no)
A prestigious academic institution in Trondheim specializing in technology, natural sciences, social sciences, arts, medicine, architecture, and fine art | Higher Education | π³π΄ Trondheim | 9,737 | 1910 |
| 7 | [Oslo University Hospital](https://www.tamtam.ai/c/oslo-university-hospital) (oslo-universitetssykehus.no)
Norway's largest hospital with national responsibilities and centers of competence, employing professionals in various disciplines and seeking top talent | Hospitals and Health Care | π³π΄ Oslo | 9,103 | |
| 8 | [University of Oslo](https://www.tamtam.ai/c/university-of-oslo-700369) (uio.no)
Leading Norwegian university with eight faculties offering education and research in diverse fields including law, medicine, humanities, and sciences. | Education Administration Programs | π³π΄ Oslo | 8,168 | |
| 9 | [Jotun](https://www.tamtam.ai/c/jotun) (jotun.com)
A leading global paint manufacturer offering interior decoration and exterior protection products, guided by values of loyalty, care, respect, and boldness | Chemical Manufacturing | π³π΄ Sandefjord | 8,119 | 1926 |
| 10 | [Kongsberg Maritime](https://www.tamtam.ai/c/kongsberg-maritime) (kongsbergmaritime.com)
Providing innovative solutions for various maritime sectors, including marine automation, navigation systems, dynamic positioning, and surveying services using advanced technology and engineering | Maritime Transportation | π³π΄ Kongsberg | 6,757 | 1814 |
| 11 | [Visma](https://www.tamtam.ai/c/visma) (visma.com)
It provides mission-critical business software to enhance efficiency and resilience for companies and organizations across Europe and Latin America. | Software Development | π³π΄ Oslo | 6,092 | 1996 |
| 12 | [University of Bergen (UiB)](https://www.tamtam.ai/c/university-of-bergen-uib) (uib.no)
Comprehensive university offering diverse academic programs, multidisciplinary research centers, international cooperation, and advanced training for students and researchers. | Research Services | π³π΄ Bergen | 5,075 | 1946 |
| 13 | [KONGSBERG](https://www.tamtam.ai/c/kongsberg) (kongsberg.com)
An international corporation with Norwegian roots, specializing in innovative technologies for maritime, defense, natural resource exploration, and space industries | Industrial Machinery Manufacturing | π³π΄ Kongsberg | 4,863 | 1814 |
| 14 | [University of Oslo](https://www.tamtam.ai/c/university-of-oslo) (uio.no)
Norway's oldest university, offering a wide range of academic disciplines and faculties to over 27,700 students with a rich historical campus in Oslo | Higher Education | π³π΄ Oslo | 4,049 | |
| 15 | [VARD](https://www.tamtam.ai/c/vard) (vard.com)
Global shipbuilder specializing in designing and constructing specialized vessels, offering power and automation systems, deck handling equipment, and engineering services to maritime industry worldwide | Shipbuilding | π³π΄ Γ
lesund | 3,505 | |
| 16 | [Storebrand](https://www.tamtam.ai/c/storebrand) (storebrand.no)
A leading financial player in the Nordic market, offering pension, savings, insurance, and banking products to individuals, businesses, and public entities for over 250 years | Financial Services | π³π΄ Lysaker | 3,244 | 1767 |
| 17 | [TOMRA](https://www.tamtam.ai/c/tomra) (tomra.com)
Providing technology-led solutions, including advanced collection and sorting systems for optimizing resource recovery and minimizing waste across food, recycling, and mining industries. | Automation Machinery Manufacturing | π³π΄ Asker | 3,174 | |
| 18 | [Haukeland universitetssjukehus](https://www.tamtam.ai/c/haukeland-universitetssjukehus) (helse-bergen.no)
A large university hospital with around 11,600 employees, focusing on providing high-quality treatment, care, research, and education in the medical field | Hospitals and Health Care | π³π΄ Bergen | 3,057 | 1912 |
| 19 | [SINTEF](https://www.tamtam.ai/c/sintef) (sintef.no)
A European research organization specializing in technology, natural sciences, and social sciences, conducting contract research and development projects for various sectors since 1950 | Research Services | π³π΄ Trondheim | 2,621 | 1950 |
| 20 | [Opera](https://www.tamtam.ai/c/opera) (opera.com)
Provides a range of internet products including browsers, gaming portals, news recommendations, advertising platforms, AI, and Web3 services globally. | Software Development | π³π΄ Oslo | 2,422 | 1995 |
| 21 | [Mowi](https://www.tamtam.ai/c/mowi) (mowi.com)
A global seafood company committed to sustainable practices, offering responsibly produced seafood and leading the way in the industry | Food and Beverage Manufacturing | π³π΄ Bergen | 2,417 | 1964 |
| 22 | [Kongsberg Automotive](https://www.tamtam.ai/c/kongsberg-automotive) (kongsbergautomotive.com)
Global vehicle technology provider driving sustainable mobility through engineering, innovation, and sustainability Specializing in driver controls, fluid assemblies, and industrial interfaces | Motor Vehicle Manufacturing | π³π΄ Kongsberg | 2,377 | 1987 |
| 23 | [Elkem ASA](https://www.tamtam.ai/c/elkem-asa) (elkem.com)
A global provider of advanced material solutions focused on developing silicones, silicon products, and carbon solutions for a sustainable future | Primary Metal Manufacturing | π³π΄ Oslo | 2,350 | 1904 |
| 24 | [University of Agder (UiA)](https://www.tamtam.ai/c/university-of-agder-uia) (uia.no)
Education and research across multiple disciplines including economics, law, technology, arts, humanities, social sciences, health, and teacher training. | Higher Education | π³π΄ Kristiansand | 2,347 | 1994 |
| 25 | [Kongsberg Defence & Aerospace](https://www.tamtam.ai/c/kongsberg-defence-and-aerospace) (kongsberg.com)
Develops and delivers advanced technology and industrial systems protecting people and critical infrastructure globally while strengthening national security and defence capabilities through innovation. | Defense and Space Manufacturing | π³π΄ Kongsberg | 2,060 | 1814 |
| 26 | [SΓΈrlandet sykehus HF](https://www.tamtam.ai/c/sorlandet-sykehus-hf) (sshf.no)
A healthcare organization in the southern region of Norway, providing specialist health services to residents and offering regional and national functions | Hospitals and Health Care | π³π΄ Kristiansand | 2,025 | 2001 |
| 27 | [DeepOcean](https://www.tamtam.ai/c/deepocean) (deepoceangroup.com)
Integrated provider of safe, high-quality subsea services and technologies for the offshore industry, focusing on survey, installation, maintenance, and project management globally | Oil and Gas | π³π΄ Oslo | 1,800 | |
| 28 | [Laerdal Medical](https://www.tamtam.ai/c/laerdal-medical) (laerdal.com)
Global leader in healthcare education and resuscitation training using immersive technologies and data insights to improve survival rates. | Medical Equipment Manufacturing | π³π΄ Stavanger | 1,689 | |
| 29 | [PGS](https://www.tamtam.ai/c/pgs) (tgs.com)
Global marine geophysics company using advanced seismic survey technology and cloud computing for energy exploration, transition, renewable energy support, and seabed mineral understanding | Oil and Gas | π³π΄ Oslo | 1,678 | 1991 |
| 30 | [Nord University](https://www.tamtam.ai/c/nord-university) (nord.no)
A university offering bachelor, master, and doctoral programs with 180+ study options, 1,200 employees, and 12,000 students across multiple locations Engaged in regional, national, and global challenges | Higher Education | π³π΄ BodΓΈ | 1,593 | |
| 31 | [Nordic Semiconductor](https://www.tamtam.ai/c/nordic-semiconductor) (nordicsemi.com)
Norwegian semiconductor company specializing in wireless communication technology for IoT, offering Bluetooth Low Energy, ANT+, Thread, Zigbee, LTE-M/NB-IoT, and Wi-Fi solutions | Semiconductor Manufacturing | π³π΄ Trondheim | 1,410 | 1983 |
| 32 | [Kristiania University of Applied Sciences](https://www.tamtam.ai/c/kristiania-university-of-applied-sciences) (kristiania.no)
Kristiania University College provides a small, interactive learning environment focused on combining theoretical and practical learning to prepare students for their future careers | Higher Education | π³π΄ Oslo | 1,376 | |
| 33 | [Kitron Group](https://www.tamtam.ai/c/kitron-group) (kitron.com)
Leading Scandinavian EMS company, offering tailored electronics manufacturing services globally with expertise in various sectors including Connectivity, Electrification, Industry, Medical Devices, and Defence/Aerospace | Appliances, Electrical, and Electronics Manufacturing | π³π΄ Billingstad | 1,216 | 1962 |
| 34 | [Institute of Marine Research (IMR), Norway](https://www.tamtam.ai/c/institute-of-marine-research-imr-norway) (hi.no)
A leading research institute focusing on marine ecosystems and seafood, providing sustainable resource management knowledge through research, advisory work, and monitoring | Research Services | π³π΄ Bergen | 1,112 | 1900 |
| 35 | [Kverneland Group](https://www.tamtam.ai/c/kverneland-group) (kvernelandgroup.jobylon.com)
Development and production of agricultural implements, electronic solutions, and digital services to enhance farming productivity, efficiency, and sustainability worldwide. | Machinery Manufacturing | π³π΄ Klepp stasjon | 1,107 | 1879 |
| 36 | [Skretting](https://www.tamtam.ai/c/skretting) (skretting.com)
Global leader in providing sustainable nutritional solutions for aquaculture industry, manufacturing high quality feeds for over 60 species worldwide Headquarters in Norway | Animal Feed Manufacturing | π³π΄ Stavanger | 1,034 | 1899 |
| 37 | [Shearwater GeoServices](https://www.tamtam.ai/c/shearwater-geoservices) (shearwatergeo.com)
A global marine geoscience and technology company specializing in studying the ocean floor for natural resources and promoting responsible resource use | Oil and Gas | π³π΄ LaksevΓ₯g | 1,026 | 2016 |
| 38 | [Forsvarets forskningsinstitutt - FFI](https://www.tamtam.ai/c/forsvarets-forskningsinstitutt-ffi) (ffi.no)
Leading technology competence center under the Ministry of Defence with over 800 employees, specializing in research and development in various fields to enhance Norway's defense capabilities | Research Services | π³π΄ Kjeller | 1,017 | 1946 |
| 39 | [Norwegian School of Economics (NHH)](https://www.tamtam.ai/c/norwegian-school-of-economics-nhh) (nhh.no)
Leading business school in Scandinavia offering Bachelor, Master, and PhD programs in Economics, Finance, and Business Accredited by EQUIS with international partnerships | Higher Education | π³π΄ Bergen | 1,003 | 1936 |
| 40 | [Glamox](https://www.tamtam.ai/c/glamox) (glamox.com)
A Norwegian industrial group that develops, manufactures, and distributes sustainable lighting solutions for professional markets worldwide, with a focus on marine, offshore, and building sectors | Appliances, Electrical, and Electronics Manufacturing | π³π΄ Oslo | 996 | |
| 41 | [AutoStoreβ’](https://www.tamtam.ai/c/autostore) (autostoresystem.com)
Innovative cube-based warehouse automation system that maximizes storage efficiency, speed, and reliability, used by leading global companies Available worldwide through partner network | Automation Machinery Manufacturing | π³π΄ Nedre Vats | 982 | 1995 |
| 42 | [Rousselot](https://www.tamtam.ai/c/rousselot) (darlingii.com)
Global leader providing collagen-based solutions for food, health, nutrition, biomedical, and pharmaceutical sectors through extensive technical expertise and sustained scientific research operations. | Food and Beverage Manufacturing | π³π΄ Son | 982 | 1891 |
| 43 | [Framo](https://www.tamtam.ai/c/framo) (framo.com)
A leading pump manufacturer based in Norway, specializing in submerged pumping systems for the tanker shipping and offshore industry worldwide | Industrial Machinery Manufacturing | π³π΄ FlorvΓ₯g | 967 | 1938 |
| 44 | [Vizrt Group](https://www.tamtam.ai/c/vizrt-group) (vizrtgroup.com)
Global leader in visual storytelling tools for media creators in broadcast, sports, digital, and pro-AV industries, promoting more impactful storytelling worldwide | Software Development | π³π΄ Bergen | 879 | |
| 45 | [Diakonhjemmet sykehus](https://www.tamtam.ai/c/diakonhjemmet-sykehus) (diakonhjemmetsykehus.no)
An ideal local hospital offering medical, surgical, rheumatology, mental health, and specialized treatment for substance use disorders to a wide patient base | Hospitals and Health Care | π³π΄ Oslo | 862 | 1890 |
| 46 | [Norske Skog](https://www.tamtam.ai/c/norske-skog) (norskeskog.com)
Production of bio-products and packaging materials, operating profitable mills, focusing on bio energy, composites, chemicals, and publication paper. | Paper and Forest Product Manufacturing | π³π΄ Oslo | 835 | 2017 |
| 47 | [KAEFER Norway](https://www.tamtam.ai/c/kaefer-norway) (kaefer.no)
A leading provider of insulation, scaffolding, and surface protection services for the oil and gas industry, with expertise in HVAC and engineering | Oil and Gas | π³π΄ Stavanger | 808 | 1977 |
| 48 | [Kongsberg Discovery](https://www.tamtam.ai/c/kongsberg-discovery) (kongsberg.com)
Development of technology and products addressing ocean ecosystem sustainability and operational challenges in changing market environments. | Manufacturing | π³π΄ Horten | 795 | 2023 |
| 49 | [Borregaard](https://www.tamtam.ai/c/borregaard) (borregaard.com)
A leading biorefinery producing sustainable biochemicals, biomaterials, and bioethanol to replace oil-based products, with a focus on research and social responsibility | Chemical Manufacturing | π³π΄ Sarpsborg | 776 | 1889 |
| 50 | [NVE](https://www.tamtam.ai/c/nve) (nve.no)
The company works to manage climate change, renewable energy, infrastructure safety, natural disasters, and international regulations to ensure a sustainable future | Government Administration | π³π΄ Oslo | 759 | |
## How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
## More company lists in Norway
- [The largest companies in Norway](https://www.tamtam.ai/l/largest-companies-norway) (2,027)
- [Multinational companies in Norway](https://www.tamtam.ai/l/multinational-companies-norway) (556)
- [Retail chains in Norway](https://www.tamtam.ai/l/retail-chains-norway) (225)
- [Critical infrastructure operators in Norway](https://www.tamtam.ai/l/critical-infrastructure-operators-norway) (220)
- [Software Development companies in Norway](https://www.tamtam.ai/l/software-development-companies-norway) (216)
- [SaaS companies in Norway](https://www.tamtam.ai/l/saas-companies-norway) (201)
- [Government Administration companies in Norway](https://www.tamtam.ai/l/government-administration-companies-norway) (169)
- [Financial services firms in Norway](https://www.tamtam.ai/l/financial-services-firms-norway) (141)
- [Public sector organisations in Norway](https://www.tamtam.ai/l/public-sector-organisations-norway) (132)
- [Manufacturers in Norway](https://www.tamtam.ai/l/manufacturers-norway) (130)
- [Professional services firms in Norway](https://www.tamtam.ai/l/professional-services-firms-norway) (116)
- [Energy companies in Norway](https://www.tamtam.ai/l/energy-companies-norway) (107)
- [IT Services and IT Consulting companies in Norway](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-norway) (103)
- [Hardware manufacturers in Norway](https://www.tamtam.ai/l/hardware-companies-norway) (102)
- [Corporate groups and holding companies in Norway](https://www.tamtam.ai/l/holding-companies-norway) (100)
- [Publicly traded companies in Norway](https://www.tamtam.ai/l/publicly-traded-companies-norway) (99)
- [Financial Services companies in Norway](https://www.tamtam.ai/l/financial-services-companies-norway) (95)
- [Education providers in Norway](https://www.tamtam.ai/l/education-companies-norway) (94)
- [Healthcare providers in Norway](https://www.tamtam.ai/l/healthcare-providers-norway) (94)
- [Companies with a mobile app in Norway](https://www.tamtam.ai/l/companies-with-mobile-app-norway) (89)
- [Subscription businesses in Norway](https://www.tamtam.ai/l/subscription-businesses-norway) (84)
- [IT services companies in Norway](https://www.tamtam.ai/l/it-services-companies-norway) (78)
- [Oil and Gas companies in Norway](https://www.tamtam.ai/l/oil-and-gas-companies-norway) (76)
- [Hotel and hospitality groups in Norway](https://www.tamtam.ai/l/hospitality-groups-norway) (75)
## The same list elsewhere in Norway
- [Companies with in-house R&D in Oslo](https://www.tamtam.ai/l/r-and-d-companies-oslo) (50)
## The same list elsewhere
- [Companies with in-house R&D in the world](https://www.tamtam.ai/l/r-and-d-companies-in-the-world) (34,346)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
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Source: https://www.tamtam.ai/l/r-and-d-companies-norway