These Oslo-based manufacturers represent a mix of established companies in primary industries and food production. Yara International specializes in sustainable crop nutrition, while Norsk Hydro focuses on aluminum production and renewables. TINE is a cooperative producing dairy products, and Elkem ASA provides advanced material solutions. Elopak supplies eco-friendly carton packaging, and Orkla Food Ingredients AS manufactures bakery ingredients. Many of these companies, such as Norsk Hydro and Elkem ASA, have a long history, with several founded in the early 20th century.
The manufacturing sector in Oslo shows a strong emphasis on sustainability and material solutions. For instance, Nel Hydrogen develops hydrogen production plants and fueling stations. There is also a notable presence of food and beverage manufacturers like Orkla Foods Norge AS and Bakehuset AS. The companies range in size, with some being large international groups.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Yara Internationalyara.com
A global company focused on sustainable crop nutrition, low-emission energy solutions, and creating a more efficient and nature-positive food value chain |
15,349 | |||
| 2 |
Norsk Hydrohydro.com
Development of sustainable industries including aluminium production, energy, metal recycling, renewables, and batteries with global operations and innovation focus. |
13,192 | |||
| 3 | 2,414 | ||||
| 4 | 2,350 | ||||
| 5 | 2,285 | ||||
| 6 |
Orkla Food Ingredients ASorklafoodingredients.com
A leading European bakery ingredients manufacturer and distributor with a wide range of products tailored for various customer channels worldwide |
1,889 | |||
| 7 |
Elopakelopak.com
A leading global supplier of eco-friendly carton packaging and filling equipment, offering sustainable solutions to reduce plastic waste |
1,683 | |||
| 8 |
Norturanortura.no
Agricultural cooperative providing meat and eggs through slaughtering, processing, and marketing services for Norwegian farmers while ensuring national distribution of quality food products. |
1,543 | |||
| 9 | 1,245 | ||||
| 10 |
Glamoxglamox.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 |
996 | |||
| 11 |
Orkla Foods Norge ASorklafoods.no
A leading supplier of food and beverages in Norway, specializing in pizza, ready-made meals, soups, sauces, and more under various strong brands |
679 | |||
| 12 | 429 | ||||
| 13 |
Nel Hydrogennelhydrogen.com
A hydrogen company listed on the Oslo Stock Exchange, specializing in hydrogen production plants, fueling stations, and power-to-gas solutions for various industries |
323 | |||
| 14 |
Saferoad Groupsaferoad.com
A leading road safety supplier in Europe with over 70 years of experience, offering innovative products and solutions for safer infrastructure |
309 | |||
| 15 |
Bakehuset ASbakehuset.no
A leading bakery company with eleven local bakeries, offering a variety of bread and pastries sold in major stores across Norway |
258 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 16 |
Orkla Snacks Norge ASorklaconfectionerysnacks.com
A company in Norway specializing in snacks, sweets, and biscuits They manufacture and market well-known brands like Nidar, KiMs, and Sรฆtre |
233 | |||
| 17 |
Orkla House Caremegaplusredirection.tedata.net
Leading provider of painting tools such as brushes, rollers, masking, sanding, tape, paint spraying, and cleaning equipment under various well-known brands |
225 | |||
| 18 | 220 | ||||
| 19 |
Kymera International - Meta Ceramicsfiven.com
Manufacturer of innovative and sustainable silicon carbide grains and powders, serving global industry leaders through trust-based relationships for over 100 years |
136 | |||
| 20 |
Photocurephotocure.com
Innovative technology improves bladder cancer treatment by making cancer cells glow pink, leading to better health outcomes for patients worldwide |
134 | |||
| 21 |
Vow ASAvowasa.com
A company and its subsidiaries specialize in converting biomass and waste into clean energy and valuable resources, promoting industry decarbonization and material recovery |
106 | |||
| 22 |
Findus Norge ASfindus.no
A leading European frozen food company with a focus on locally sourced products, producing a variety of fish, vegetables, and ready meals in Norway |
101 | |||
| 23 | 65 | ||||
| 24 |
Norilianorilia.com
A leading Norwegian company in meat and egg industry, specializing in development and sales of various products internationally Owned by Norwegian Farmers |
37 | |||
| 25 |
Weber Norgeweber-norge.no
The company develops and delivers concrete and mortar-related products and solutions for the construction industry in Norway, owned by French company Saint-Gobain |
29 | |||
| 26 |
NerliGruppen ASnerligruppen.no
A Norwegian-owned company delivering and installing sun protection products while also producing innovative solutions for the European market Strong focus on innovation and customer relationships |
17 | |||
| 27 |
RESPINOR ASrespinor.com
A privately-owned medical device company founded in 2015, providing objective measure of diaphragm function for critically ill patients in intensive care |
15 | |||
| 28 |
Observe Medicalobservemedical.com
A medtech company in Sweden developing Sippiยฎ, a digital urine measurement system for hospital ICU's with wireless data transfer and infection prevention |
15 | |||
| 29 |
EpiGuardepiguard.com
Innovative Norwegian medical technology company that develops and manufactures high-end medical equipment for safe transport of contagious patients globally |
14 | |||
| 30 |
Biovotecbiovotec.com
Develops next-generation wound care products from hen eggshell membrane, making advanced wound care accessible and affordable for patients and clinicians. |
7 | |||
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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 11, 2026.
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