# The 29 largest companies in Dietikon
Tamtam tracks 29 companies headquartered in Dietikon. This list ranks all of them by number of employees on LinkedIn, led by Planzer, WALO Bertschinger and Ochsner Sport. Their median headcount is 142. Half of them were founded in 1973 or later.
The companies listed in Dietikon are primarily established mid-sized to large firms, with a strong presence in logistics, retail, and manufacturing. Many are family-owned or part of larger Swiss groups. Key examples include Planzer, a logistics company, WALO Bertschinger in construction, Ochsner Sport for sporting goods, and duagon, which develops embedded electronics for rail and medical markets.
A notable characteristic of these companies is their long history, with several founded in the early to mid-20th century. This suggests a mature business environment with enduring enterprises rather than a high concentration of recent startups.
π¨π Dietikon Β· 29 companies Β· Updated Nov 12, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Planzer](https://www.tamtam.ai/c/planzer) (planzer.ch)
Family-owned logistics company offering national and international parcel transport, warehousing, and eco-friendly delivery services across multiple countries. | Transportation, Logistics, Supply Chain and Storage | π¨π Dietikon | 1,469 | 1936 |
| 2 | [WALO Bertschinger](https://www.tamtam.ai/c/walo-bertschinger) (walo.ch)
Construction company focused on quality, precision, safety, sustainability, offering comprehensive solutions through skilled, continuously trained workforce and innovative approaches. | Construction | π¨π Dietikon | 856 | 1917 |
| 3 | [Ochsner Sport](https://www.tamtam.ai/c/ochsner-sport) (ochsnersport.ch)
Leading Swiss sports equipment provider offering a wide range of gear and expertise to fuel outdoor adventures in Switzerland's stunning landscapes | Sporting Goods Manufacturing | π¨π Dietikon | 634 | 1961 |
| 4 | [Dosenbach](https://www.tamtam.ai/c/dosenbach) (dosenbach.ch)
A Swiss family-owned company part of a leading shoe group, offering fashionable and affordable shoes, sports gear, and quality brands | Retail | π¨π Dietikon | 500 | 1865 |
| 5 | [duagon](https://www.tamtam.ai/c/duagon) (duagon.com)
Develops embedded electronic hardware, software, and services for system-critical applications in the rail and medical markets, focusing on safety and reliability. | Computers and Electronics Manufacturing | π¨π Dietikon | 492 | 1995 |
| 6 | [MediaMarkt Switzerland](https://www.tamtam.ai/c/mediamarkt-switzerland) (mediamarkt.ch)
A leading provider of modern electronics devices in Switzerland, offering a wide range of products, services, and expert advice online and in-store | Retail | π¨π Dietikon | 386 | 1994 |
| 7 | [Lyreco Switzerland AG](https://www.tamtam.ai/c/lyreco-switzerland-ag) (lyreco.com)
A Swiss company with over 500 employees offering comprehensive workplace solutions, efficient processes, personalized advice, eco-friendly initiatives, and reliable logistics support | Wholesale | π¨π Dietikon | 351 | 1887 |
| 8 | [Coop City](https://www.tamtam.ai/c/coop-city) (coop-city.ch)
A leading Swiss retailer offering the largest sustainable product range in 30 locations, providing expert advice, ticket sales, deposit services, and online shopping options | Retail | π¨π Dietikon | 269 | |
| 9 | [City of Dietikon](https://www.tamtam.ai/c/city-of-dietikon) (dietikon.ch)
The company promotes the city of Dietikon as an attractive place to live, work, and enjoy leisure with a focus on sustainable development and various cultural events | Government Administration | π¨π Dietikon | 244 | |
| 10 | [Signode Europe](https://www.tamtam.ai/c/signode-europe) (signode.com)
Global provider of packaging machines and films, focusing on boosting customer efficiency and profitability through stretch hood and stretch wrap solutions | Packaging and Containers Manufacturing | π¨π Dietikon | 236 | 1969 |
| 11 | [ChicorΓ©e Mode AG](https://www.tamtam.ai/c/chicoree-mode-ag) (chicoree.ch)
A leading Swiss fashion label with over 150 stores nationwide, ChicorΓ©e focuses on young fashion market and continues to expand | Retail Apparel and Fashion | π¨π Dietikon | 230 | |
| 12 | [Planzer Paket](https://www.tamtam.ai/c/planzer-paket) (planzer-paket.ch)
Delivery service transporting packages up to 30 kg to individuals and businesses using a nationwide rail network for long distances, then using local delivery vehicles | Freight and Package Transportation | π¨π Dietikon | 226 | |
| 13 | [Dosenbach Ochsner & Companies](https://www.tamtam.ai/c/dosenbach-ochsner-and-companies) (dosenbach-ochsner.ch)
Leading Swiss retail group operating shoe and sports stores with 400 locations, 5,000 employees, offering flexible work and employee benefits. | Retail | π¨π Dietikon | 162 | |
| 14 | [Quickmail AG](https://www.tamtam.ai/c/quickmail-ag) (quickmail-ag.ch)
A private service provider in Switzerland delivering addressed mailings, catalogues, and customer magazines to support customer acquisition and retention through customer dialogue | Transportation, Logistics, Supply Chain and Storage | π¨π Dietikon | 149 | 2009 |
| 15 | [Optotune](https://www.tamtam.ai/c/optotune) (optotune.com)
Optotune develops innovative active optical components inspired by the human eye, offering solutions for challenges where conventional optics fall short | Industrial Machinery Manufacturing | π¨π Dietikon | 142 | 2008 |
| 16 | [Ochsner Shoes AG](https://www.tamtam.ai/c/ochsner-shoes-ag) (ochsner-shoes.ch)
A Swiss shoe retailer with 65 stores, offering quality footwear, accessories, and care products with a focus on sustainability and online-offline integration | Retail | π¨π Dietikon | 134 | 1928 |
| 17 | [SFC KOENIG](https://www.tamtam.ai/c/sfc-koenig) (sfckoenig.com)
Global leader in sealing and flow control technology, offering best-in-class metal-to-metal sealing solutions for critical applications in various industries worldwide | Industrial Machinery Manufacturing | π¨π Dietikon | 107 | 1927 |
| 18 | [Ex Libris AG](https://www.tamtam.ai/c/ex-libris-ag) (exlibris.ch)
A subsidiary of Migros with 14 branches, employing 217 staff In 2021, it generated a net revenue of 1344 million Swiss Francs, with over 90% from online sales | Retail | π¨π Dietikon | 89 | 1947 |
| 19 | [Fressnapf Schweiz](https://www.tamtam.ai/c/fressnapf-schweiz) (fressnapf.ch)
Leading retailer offering a wide range of branded products for pets in-store and online Committed to promoting happiness between pets and their owners | Retail | π¨π Dietikon | 84 | 1998 |
| 20 | [K.A.B. Brandschutz](https://www.tamtam.ai/c/k-a-b-brandschutz) (k-a-b.ch)
Since 1958, we have been dedicated to making people and businesses safer by providing a comprehensive range of fire prevention and protection products and services | Retail | π¨π Dietikon | 83 | 1958 |
| 21 | [bb trading werbeartikel ag](https://www.tamtam.ai/c/bb-trading-werbeartikel-ag) (bbtrading.ch)
A company specializing in promotional and advertising items, with a team dedicated to creating innovative concepts, responsible production, and customer-friendly services | Advertising Services | π¨π Dietikon | 56 | 2001 |
| 22 | [CURADEN Schweiz](https://www.tamtam.ai/c/curaden-schweiz) (curaden-dentaldepot.ch)
A Swiss-based company focused on dental professionals' needs, promoting oral health through long-term relationships, excellent service, and support for improving dental health in Switzerland | Wellness and Fitness Services | π¨π Dietikon | 37 | 1950 |
| 23 | [Congenius AG](https://www.tamtam.ai/c/congenius-ag) (congenius.ch)
This company offers tailored consultancy services in medical technology, including Quality, Regulatory, eHealth, Operations, and Clinical, partnering with global firms, SMEs, and start-ups | Medical Equipment Manufacturing | π¨π Dietikon | 34 | 2016 |
| 24 | [Graphax AG - IT Services & Document Solutions](https://www.tamtam.ai/c/graphax-ag-it-services-and-document-solutions) (graphax.ch)
Specialists in Document Solutions and IT Services, offering innovative, reliable, and customized solutions including printing, automated document management, and IT infrastructure services in Switzerland | IT Services and IT Consulting | π¨π Dietikon | 25 | 1973 |
| 25 | [Interio AG](https://www.tamtam.ai/c/interio-ag) (migros.ch)
The company offers a wide range of inspiring and trendy home furnishings, prioritizing good design, affordability, quality, and immediate availability for customers | Retail | π¨π Dietikon | 21 | |
| 26 | [emost](https://www.tamtam.ai/c/emost) (emost.com)
The company offers clean and smart energy solutions worldwide, serving as a sustainable alternative to generators and temporary grids | Renewable Energy Semiconductor Manufacturing | π¨π Dietikon | 11 | |
| 27 | [CONTREC AG](https://www.tamtam.ai/c/contrec-ag) (contrec.ch)
Your partner for analytical measurement devices and software, providing solutions for research labs, manufacturing facilities with high emissions, and other industries | Environmental Services | π¨π Dietikon | 6 | 1994 |
| 28 | [NUMO Orthopedic Systems AG](https://www.tamtam.ai/c/numo-orthopedic-systems-ag) (numo.ch)
A medical devices company located in Dietikon, Switzerland, specializing in orthopedic systems | Medical Equipment Manufacturing | π¨π Dietikon | 6 | 1999 |
| 29 | [ELCAL AG](https://www.tamtam.ai/c/elcal-ag) (elcal.ch)
Accredited calibration laboratory offering services as a Fluke Calibration distributor and authorized service provider for Keithley and Tektronix equipment | Appliances, Electrical, and Electronics Manufacturing | π¨π Dietikon | 5 | 2001 |
## 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.
## The same list elsewhere in Switzerland
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## The same list elsewhere
- [The largest companies in the world](https://www.tamtam.ai/l/largest-companies-in-the-world) (415,122)
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Source: https://www.tamtam.ai/l/largest-companies-dietikon