Hesse is home to a significant cluster of companies with in-house research and development, predominantly in healthcare, pharmaceuticals, and medical technology. These include large, established firms like Fresenius Medical Care, which specializes in renal disease products, and Merck Group, a science and technology company in healthcare and life science. B. Braun Group focuses on medical technology, while Fresenius Kabi provides therapies and medical products for critically ill patients. The region also features companies in automotive manufacturing, such as AUMOVIO, offering modern mobility solutions, and Opel, an automotive brand focused on electric mobility.
A notable pattern is the concentration of pharmaceutical and medical device companies, particularly around Darmstadt and Bad Homburg, indicating a strong regional specialization in life sciences and health. IT services, represented by T-Systems International and DB Systel, also have a presence, alongside engineering services from EDAG Group, and food and beverage manufacturing by DöhlerGroup.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Fresenius Medical Carefreseniusmedicalcare.com
Global leader in renal disease products and services, providing tailored dialysis treatments for improved quality of life for patients worldwide |
128,000 | |||
| 2 |
Merck Groupemdgroup.com
Global science and technology innovations providing solutions in healthcare, life science, and electronics to enrich lives through sustainable research and diverse expertise. |
32,730 | |||
| 3 |
B. Braun Groupbbraun.com
A leading medical technology organization dedicated to protecting and improving global health through innovative solutions and collaborative culture |
29,535 | |||
| 4 |
Fresenius Kabifresenius-kabi.com
Global provider therapies, medical products. Focuses on medicines, technologies for critically, chronically ill patients. Biosimilars, nutrition, medical devices, generics. |
25,432 | |||
| 5 |
AUMOVIOaumovio.com
Provides innovative hardware, software, modern mobility solutions, and a wide range of mobility services, making future mobility safe, exciting, connected, and autonomous. |
20,389 | |||
| 6 |
T-Systems Internationalt-systems.com
Provides end-to-end IT solutions, cloud migration, and industry-specific digital transformation services with strong security and global presence. |
10,768 | |||
| 7 |
Merck Life Sciencesigmaaldrich.com
Global science and technology company providing tools, services, and expertise for researchers in pharmaceutical development, manufacturing, and contract testing across various modalities |
8,700 | |||
| 8 |
EDAG Groupedag.com
Engineering service provider for mobility, defense, industry, and public solutions, developing complex products, systems, and production solutions with an interdisciplinary team. |
8,500 | |||
| 9 |
Merck KGaA, Darmstadt, Germanyemdgroup.com
A global science and technology company focused on innovating solutions in Life Science, Healthcare, and Electronics, with a strong emphasis on sustainability and inclusivity |
7,263 | |||
| 10 |
Merck Healthcaremerckgroup.com
The company is dedicated to advancing cancer treatment, improving care for chronic diseases, and helping couples achieve their dream of having a baby through innovative therapies and technologies |
7,065 | |||
| 11 |
STADA Groupstada.com
A leading pharmaceutical manufacturer providing high-quality products globally, focused on consumer healthcare, generics, and specialty pharma, with a commitment to employee development |
6,554 | |||
| 12 | 5,994 | ||||
| 13 |
DöhlerGroupdoehler.com
Global provider of natural ingredients, solutions, and technology for food, beverage, and nutrition industries, focusing on sensory performance, nutrition, and sustainability |
4,778 | |||
| 14 |
DB Systel GmbHdbsystel.de
The company focuses on digitalizing rail systems through innovative solutions and partnerships, aiming to meet customer needs and IT standards |
4,639 | |||
| 15 |
Bosch Home Comfort Groupbosch-homecomfortgroup.com
The company specializes in creating innovative sustainable heating, cooling, and well-being solutions to enhance lifestyles for a smarter future |
4,606 | |||
| 16 |
Technische Universität Darmstadttu-darmstadt.de
Researching future fields of energy, mobility, communication, and information technologies. Developing concepts into practical applications across various disciplines. |
4,516 | |||
| 17 |
Deutsche Börse Groupdeutsche-boerse.com
Provides access to global capital markets through securities and derivatives trading, clearing, settlement, custody, market data, and electronic trading systems. |
4,458 | |||
| 18 |
KION Groupkiongroup.com
Architects global, regional, and local supply chains, providing solutions for fast, efficient, smart, sustainable, and reliable material handling and automation worldwide. |
3,498 | |||
| 19 |
Viessmann Climate Solutionsviessmann-climatesolutions.com
Leading provider of climate and renewable energy solutions, specializing in heating, water, and air quality technologies since 1917 Creating sustainable living spaces |
3,115 | |||
| 20 |
SVA System Vertrieb Alexander GmbHsva.de
A leading system integrator in Germany, offering IT products and services, data center infrastructure, business continuity, IT service management, SAP solutions, and operational support |
3,101 | |||
| 21 |
Heraeusheraeus.com
A globally leading family-owned technology company with diverse activities in metals, healthcare, semiconductor, electronics, and industrials, providing innovative solutions worldwide |
2,914 | |||
| 22 |
Leica Microsystemsleica-microsystems.com
Development and manufacturing of microscopes and scientific instruments for microstructure and nanostructure analysis with global presence. |
2,407 | |||
| 23 |
Lufthansa Systemslhsystems.com
provides advanced IT solutions and software for airlines, covering flight deck, cabin, and ground operations worldwide. |
2,282 | |||
| 24 |
allnexallnex.com
A leading producer of specialty polymers focused on sustainability, offering advanced coating solutions for various industries through global innovation and responsive local support |
2,259 | |||
| 25 |
Schunk Groupschunk-group.com
A global technology group with expertise in carbon, ceramics, and sintered metal products, environmental simulation, air conditioning, ultrasonic welding, and optical production |
2,179 | |||
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. | |||||
| 26 |
Fresenius Groupfresenius.com
A leading healthcare company offering system-critical products and services for therapy, with a focus on advancing patient care and improving medicine for more people |
2,092 | |||
| 27 |
SGL Carbonsglcarbon.com
Global leader in carbon-based solutions for industries such as automotive, semiconductor, energy, and chemicals Committed to sustainability and innovation |
2,079 | |||
| 28 |
Regnologyregnology.net
Provides technology for regulatory, risk, tax, and finance reporting, helping clients achieve compliance and unlock insights across various financial sectors globally. |
2,015 | |||
| 29 |
INEOS Styrolutionineos.com
Global leader in styrenics supply, specializing in styrene monomer, polystyrene, ABS, and styrenic specialties for various industries, with world-class production facilities and 90+ years of experience |
1,978 | |||
| 30 |
Schenck Processqlar.com
A global leader in engineering technologies with expertise in industrial weighing, feeding, conveying, milling, grinding, and digital applications for material processing |
1,900 | |||
| 31 |
Software AGsoftwareag.com
Helps enterprises modernize and integrate core business applications for security, efficiency, and long-term value, enabling innovation without disruption for organizations worldwide. |
1,884 | |||
| 32 |
DFS Deutsche Flugsicherung GmbHdfs.de
A German air navigation service provider with 5,600 employees ensuring safe and punctual air traffic flow, guiding millions of flights annually |
1,767 | |||
| 33 |
Pfeiffer Vacuum+Fab Solutionspfeiffer-vacuum.com
A global leader in vacuum technology solutions, offering a range of products and services including turbopumps, leak detectors, and vacuum systems with top-tier customer support |
1,764 | |||
| 34 |
Chemetallchemetall.com
Leading supplier of applied surface treatment technologies for metal, plastic, and glass substrates in industries like automotive, aerospace, and aluminum finishing |
1,728 | |||
| 35 |
BRITA Groupbrita.nl
Develops, produces, distributes innovative water filtration products for private and commercial use, including jugs, systems, dispensers, and sparkling water makers. |
1,654 | |||
| 36 |
Standard Profil Groupstandardprofil.com
A global supplier of automotive sealing solutions, prioritizing safety and comfort Specializing in innovative and sustainable products for major automakers worldwide |
1,560 | |||
| 37 |
Universitätsmedizin Frankfurtunimedizin-ffm-karriere.softgarden.io
A university hospital in Frankfurt with 7,500 employees, focusing on healthcare, research, and education Offering diverse career opportunities and promoting work-life balance |
1,379 | |||
| 38 |
Merz Therapeuticsmerztherapeutics.com
Development of innovative treatments and partnerships for movement disorders, neurodegenerative diseases, liver disease, improving patient quality of life globally. |
1,322 | |||
| 39 |
Emma – The Sleep Companyteam.emma-sleep.com
Development and promotion of advanced sleep technology products aimed at improving rest quality and supporting diverse, inclusive work culture. |
1,317 | |||
| 40 |
RheinMain University of Applied Scienceshs-rm.de
A university with four campus locations in Wiesbaden and Rüsselsheim, offering over 70 degree programs across five faculties to 14,000 students |
1,311 | |||
| 41 |
Woco Groupwocogroup.com
A technology company specializing in smart solutions for automotive and industrial sectors, focusing on noise reduction, fluid regulation, and emissions reduction |
1,169 | |||
| 42 |
BITbit-as.com
Designs, develops, manufactures, and services high-performance medical and life science diagnostic devices for clients, helping them improve and save lives globally. |
1,170 | |||
| 43 |
SAMSON GROUPsamsongroup.com
A leading manufacturer of control valves, butterfly valves, automation units, regulators, transmitters, and controllers for industrial processes, with a focus on innovation and digitization |
1,144 | |||
| 44 |
Hochschule Fuldahs-fulda.de
A university in Fulda, Germany, offering a wide range of bachelor and master programs, focusing on quality teaching, research, and international collaboration |
1,094 | |||
| 45 |
Biotest GmbH & Co. KGaAbiotest.com
Specialist supplier of plasma proteins and biotherapeutic drugs for immune and hematopoietic diseases, with a focus on innovative treatments and global reach |
1,076 | |||
| 46 | 1,022 | ||||
| 47 |
Nintendo of Europenintendo.com
A Japanese company creates popular video game franchises, hardware, and software products, aiming to provide unique entertainment experiences globally |
998 | |||
| 48 |
Merck Electronicsmerckgroup.com
Innovative materials and solutions in semiconductor, display, and surface technologies, driving forward electronics advancements for a data-driven world |
997 | |||
| 49 | 980 | ||||
| 50 |
JOST Worldjost-world.com
Production and supply of safety-critical systems and components for commercial vehicles, including transport, agriculture, construction, and mining industries worldwide. |
946 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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.
More company lists in Hesse
- The largest companies in Hesse 1,378
- Multinational companies in Hesse 466
- Financial services firms in Hesse 205
- Manufacturers in Hesse 163
- Critical infrastructure operators in Hesse 156
- Financial Services companies in Hesse 141
- Transportation, Logistics, Supply Chain and Storage companies in Hesse 124
- Retail chains in Hesse 110
- SaaS companies in Hesse 94
- Hardware manufacturers in Hesse 93
- Family-owned companies in Hesse 88
- Professional services firms in Hesse 88
- Software Development companies in Hesse 86
- IT Services and IT Consulting companies in Hesse 80
- Banking companies in Hesse 77
- Consulting firms in Hesse 74
- IT services companies in Hesse 66
- Corporate groups and holding companies in Hesse 65
- Public sector organisations in Hesse 65
- Companies with a mobile app in Hesse 61
- Logistics companies in Hesse 57
- Publicly traded companies in Hesse 53
- Automotive manufacturers and suppliers in Hesse 45
- Chemical companies in Hesse 45
The same list elsewhere in Germany
- Companies with in-house R&D in Germany 2,450
- Companies with in-house R&D in Bavaria 529
- Companies with in-house R&D in Baden-Württemberg 520
- Companies with in-house R&D in North Rhine-Westphalia 455
- Companies with in-house R&D in Lower Saxony 138
- Companies with in-house R&D in Rhineland-Palatinate 88
- Companies with in-house R&D in Schleswig-Holstein 52
- Companies with in-house R&D in Saxony 44
- Companies with in-house R&D in Berlin 165
- Companies with in-house R&D in Munich 148
- Companies with in-house R&D in Hamburg 84
- Companies with in-house R&D in Stuttgart 51
- Companies with in-house R&D in Frankfurt 38
- Companies with in-house R&D in Cologne 35
- Companies with in-house R&D in Düsseldorf 30
- Companies with in-house R&D in Aachen 29
- Companies with in-house R&D in Bremen 25
- Companies with in-house R&D in Karlsruhe 25