# Top 28 companies with in-house R&D in Basel-Landschaft

Tamtam tracks 28 companies with in-house R&D headquartered in Basel-Landschaft. This list ranks all of them by number of employees on LinkedIn, led by Endress+Hauser Group, Clariant and Archroma. Their median headcount is 256. Half of them were founded in 1995 or later.

The companies in Basel-Landschaft with in-house R&D are primarily large to mid-sized firms, with a strong presence in manufacturing, particularly chemical and pharmaceutical sectors. Endress+Hauser Group, with over 10,000 employees, specializes in measurement and automation technology. Clariant and Archroma are significant players in chemical manufacturing, while Bachem and Idorsia Pharmaceuticals Ltd focus on pharmaceutical development.

A notable pattern is the concentration of companies in the chemical and pharmaceutical industries, reflecting a regional strength in advanced manufacturing and life sciences. Reinach and Allschwil appear as key locations, hosting multiple companies such as Habasit, specializing in belting products, and SKAN, which develops isolators for biopharmaceutical production.

🇨🇭 Basel-Landschaft · 28 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Endress+Hauser Group](https://www.tamtam.ai/c/endress-hauser-group) (endress.com)<br>Global leader in measurement and automation technology for process and laboratory applications, helping customers improve products, work economically, and protect people and environment. | Automation Machinery Manufacturing | 🇨🇭 Reinach | 10,460 | 1953 |
| 2 | [Clariant](https://www.tamtam.ai/c/clariant) (clariant.com)<br>Provides innovative, sustainable specialty chemical solutions for various industries, focusing on key trends like energy efficiency, renewable raw materials, and resource conservation. | Chemical Manufacturing | 🇨🇭 Pratteln | 9,968 | 1995 |
| 3 | [Archroma](https://www.tamtam.ai/c/archroma) (archroma.com)<br>Global provider of specialty chemicals for textiles, paper, and coatings, delivering color and performance solutions to diverse markets worldwide. | Chemical Manufacturing | 🇨🇭 Pratteln | 2,748 | 2013 |
| 4 | [Bachem](https://www.tamtam.ai/c/bachem) (bachem.com)<br>Development and manufacturing of peptides and oligonucleotides for research, clinical development, and commercial pharmaceutical applications worldwide. | Pharmaceutical Manufacturing | 🇨🇭 Bubendorf | 2,089 | 1971 |
| 5 | [Habasit](https://www.tamtam.ai/c/habasit) (habasit.com)<br>A global leader in belting products, specializing in conveyor, plastic modular, power transmission belts, chains, and gearmotors for various industries | Automation Machinery Manufacturing | 🇨🇭 Reinach | 1,604 | 1946 |
| 6 | [SKAN](https://www.tamtam.ai/c/skan) (skan.com)<br>A Swiss company specializing in isolators, cleanroom devices, and decontamination processes for aseptic biopharmaceutical production with a focus on regulatory compliance and innovation | Machinery Manufacturing | 🇨🇭 Allschwil | 1,264 | 1969 |
| 7 | [Weleda AG](https://www.tamtam.ai/c/weleda-ag) (weleda.de)<br>Leading manufacturer of certified natural cosmetics and anthroposophic medicines with over 1000 medicines and 120 cosmetics products, emphasizing health and beauty in harmony with humanity and nature | Personal Care Product Manufacturing | 🇨🇭 Arlesheim | 902 | 1921 |
| 8 | [Idorsia Pharmaceuticals Ltd](https://www.tamtam.ai/c/idorsia-pharmaceuticals-ltd) (idorsia.com)<br>Innovative biopharmaceutical company based in Switzerland, focused on discovering, developing, and commercializing new medicines to expand therapeutic options for patients | Pharmaceutical Manufacturing | 🇨🇭 Allschwil | 812 |  |
| 9 | [CARBOGEN AMCIS](https://www.tamtam.ai/c/carbogen-amcis) (carbogen-amcis.com)<br>Specialized in drug substance and product development, commercialization, and manufacturing with cGMP compliance and innovative pharmaceutical solutions. | Pharmaceutical Manufacturing | 🇨🇭 Bubendorf | 725 |  |
| 10 | [Neoperl Group](https://www.tamtam.ai/c/neoperl-group) (neoperl.com)<br>Designing and manufacturing plumbing products that regulate water flow, ensure supply stability, and protect drinking water globally. | Manufacturing | 🇨🇭 Reinach Basel-Land | 581 | 1959 |
| 11 | [Sentec](https://www.tamtam.ai/c/sentec) (sentec.com)<br>A leader in noninvasive patient monitoring technology, developing innovative sensors for continuous ventilation and oxygenation monitoring worldwide Vision: Advancing Noninvasive Patient Monitoring | Medical Equipment Manufacturing | 🇨🇭 Therwil | 469 | 1999 |
| 12 | [Stöcklin Logistik Group](https://www.tamtam.ai/c/stocklin-logistik-group) (stoecklin.com)<br>Providing comprehensive logistics solutions including planning, conveying, storage systems, and high-quality forklifts to optimize space, time, and resources. | Industrial Machinery Manufacturing | 🇨🇭 Laufen | 363 |  |
| 13 | [Swiss Aviation Software](https://www.tamtam.ai/c/swiss-aviation-software) (swiss-as.com)<br>Leading global supplier of aviation maintenance management software, offering a fully-integrated solution for managing maintenance, engineering, and logistics for airlines and MRO providers | Airlines and Aviation | 🇨🇭 Allschwil | 344 | 1989 |
| 14 | [Basilea Pharmaceutica](https://www.tamtam.ai/c/basilea-pharmaceutica) (basilea.com)<br>A biopharmaceutical company focused on discovering, developing, and commercializing innovative drugs for severe bacterial and fungal infections, with two successful hospital brands | Biotechnology Research | 🇨🇭 Allschwil | 256 | 2000 |
| 15 | [Magnolia](https://www.tamtam.ai/c/magnolia-munchenstein) (magnolia-cms.com)<br>A leading composable digital experience platform for enterprises, unifying tech stacks to create integrated customer experiences and streamline digital delivery | Software Development | 🇨🇭 Münchenstein (Basel) | 254 | 1997 |
| 16 | [REGO-FIX Group](https://www.tamtam.ai/c/rego-fix-group) (us.rego-fix.com)<br>Manufacture and global distribution of high-precision tool clamping systems for automotive, aviation, medical, and mechanical engineering industries. | Industrial Machinery Manufacturing | 🇨🇭 Tenniken | 197 | 1950 |
| 17 | [INFORS HT](https://www.tamtam.ai/c/infors-ht) (infors-ht.com)<br>Swiss company providing bioreactors, incubator shakers, and software for scalable microbial and animal cell culture bioprocessing research. | Biotechnology Research | 🇨🇭 Bottmingen | 176 | 1965 |
| 18 | [AMETEK CTS](https://www.tamtam.ai/c/ametek-cts) (ametek-cts.com)<br>A global provider of test and measurement solutions for EMC testing, offering products for conducted and radiated disturbances in the RF and microwave range | Appliances, Electrical, and Electronics Manufacturing | 🇨🇭 Reinach | 140 | 2011 |
| 19 | [Santhera Pharmaceuticals](https://www.tamtam.ai/c/santhera-pharmaceuticals) (santhera.com)<br>Swiss pharmaceutical company focusing on developing innovative treatments for rare neuromuscular and pulmonary diseases, including vamorolone for DMD and lonodelestat for CF | Pharmaceutical Manufacturing | 🇨🇭 Pratteln | 121 | 2004 |
| 20 | [BUSS ChemTech AG](https://www.tamtam.ai/c/buss-chemtech-ag) (buss-ct.com)<br>Global leader in innovative process technologies for chemical and aluminum industries, offering customized solutions including process development, engineering packages, equipment supply, and plant services | Engineering Services | 🇨🇭 Pratteln | 55 | 1884 |
| 21 | [RELUX Informatik AG](https://www.tamtam.ai/c/relux-informatik-ag) (relux.com)<br>Specializing in professional lighting planning and sensor design using RELUX applications, providing precise calculations, standards compliance, and expert solutions | IT Services and IT Consulting | 🇨🇭 Münchenstein | 36 | 1998 |
| 22 | [EMC PARTNER AG](https://www.tamtam.ai/c/emc-partner-ag) (emc-partner.com)<br>Specializing in impulse test equipment up to 100kA and 100kV, conducting EMC tests for various industries, and offering a wide range of EMC test equipment products | Appliances, Electrical, and Electronics Manufacturing | 🇨🇭 Laufen | 33 | 1994 |
| 23 | [Joe Security LLC](https://www.tamtam.ai/c/joe-security-llc) (joesecurity.org)<br>Development of deep malware analysis systems for detection and forensics, supporting multiple platforms and empowering security teams worldwide. | Computer and Network Security | 🇨🇭 Reinach | 12 | 2011 |
| 24 | [Müller Group (MVM Pack-Holding AG)](https://www.tamtam.ai/c/muller-group-mvm-pack-holding-ag) (mueller-group.com)<br>The Müller Group consists of four companies producing industrial packaging, stainless steel containers, handling systems, dosing units, and GMP washers for various industries worldwide | Industrial Machinery Manufacturing | 🇨🇭 Münchenstein | 12 | 1897 |
| 25 | [Curatis Holding AG](https://www.tamtam.ai/c/curatis-holding-ag) (curatis.com)<br>Specialty pharmaceutical company focusing on acquiring, developing, and commercializing innovative medicines for rare and specialty care diseases through partnerships and co-development arrangements | Pharmaceutical Manufacturing | 🇨🇭 Liestal | 11 | 2002 |
| 26 | [AdipoGen Life Sciences](https://www.tamtam.ai/c/adipogen-life-sciences) (adipogen.com)<br>A research reagents company focused on developing innovative products for Life Science Research in areas like obesity, immuno-oncology, and antimicrobial resistance | Biotechnology Research | 🇨🇭 Liestal | 10 | 2011 |
| 27 | [Simtec AG](https://www.tamtam.ai/c/simtec-ag) (simtec.ch)<br>Specializing in air data systems manufacturing, technical software development, tactical data-link services, and GPS products dealership in Switzerland, with wind-tunnel operations | Aviation and Aerospace Component Manufacturing | 🇨🇭 Aesch | 9 | 2003 |
| 28 | [U-Sana Medical AG](https://www.tamtam.ai/c/u-sana-medical-ag) (usanamedical.com)<br>The company is an innovative developer, manufacturer, and distributor of medical devices for the orthopedic market, all made in Switzerland | Medical Equipment Manufacturing | 🇨🇭 Oberwil | 4 | 2018 |

## 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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## The same list elsewhere in Switzerland

- [Companies with in-house R&D in Switzerland](https://www.tamtam.ai/l/r-and-d-companies-switzerland) (916)
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- [Companies with in-house R&D in Geneva](https://www.tamtam.ai/l/r-and-d-companies-geneva) (37)
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Source: https://www.tamtam.ai/l/r-and-d-companies-basel-landschaft