| # | Company | Employees |
|---|---|---|
| 1 |
German Aerospace Center (DLR)dlr.de
A research center in Germany focused on aeronautics, space, energy, and more Developing solutions for global challenges with 10,000 employees |
7,780 |
| 2 |
RWTH Aachen Universityrwth-aachen.de
A leading European institution for science and research, offering over 150 academic programs to 45,000 students with a strong emphasis on real-world applications |
6,496 |
| 3 |
University of Cologneuni-koeln.de
One of the oldest and largest universities in Germany, known for academic excellence, research focus, international partnerships, and a wide range of study programs |
5,692 |
| 4 |
Ruhr University Bochumruhr-uni-bochum.de
A leading international research institution in the Ruhrgebiet region, offering top research opportunities and programs to develop talents and promote entrepreneurial spirit among students |
5,257 |
| 5 |
University of Münsteruni-muenster.de
A leading public university in Germany with over 43,000 students, offering a wide range of academic programs in various fields, including some courses in English |
4,802 |
| 6 |
The University of Bonnuni-bonn.de
A prestigious German research and higher education institution with a global reputation, specializing in research, teaching, and hosting thousands of students |
4,675 |
| 7 |
University of Duisburg-Essenuni-due.de
Offers broad international academic programs across humanities, sciences, engineering, and medicine with strong research focus and diverse student body. |
3,953 |
| 8 |
University of Düsseldorfhhu.de
A civic university in Düsseldorf, Germany, founded in 1965 Offers a modern campus environment for over 35,000 students, emphasizing community engagement and collaborative research |
3,889 |
| 9 |
Forschungszentrum Jülichfz-juelich.de
Large interdisciplinary research center, finding solutions to modern world challenges in energy, information, and bioeconomy, conducting basic research with unique infrastructure and practical applications. |
3,684 |
| 10 |
FOM University of Applied Sciences for Economics and Managementfom.de
A leading European institution offering practical-oriented bachelor's and master's degrees in various fields to students, professionals, and international students through campus and online learning options |
2,514 |
| 11 |
Bielefeld Universityuni-bielefeld.de
A diverse and research-focused university with 13 faculties covering humanities, natural sciences, social sciences, and technology, offering top-quality teaching to over 24,000 students |
2,506 |
| 12 |
Cologne University of Applied Sciencesth-koeln.de
A diverse university focusing on technology, arts, and sciences, offering a wide range of degree programs and conducting research on societal challenges |
2,223 |
| 13 |
Paderborn Universityuni-paderborn.de
High-performance university with 20,000 students focusing on interdisciplinary research, innovative teaching, knowledge transfer, and regional development partnerships. |
2,148 |
| 14 |
FH Münsterfh-muenster.de
Specialized in applied sciences education, FH Münster offers diverse study programs, promoting hands-on learning and research through close ties with industry and strong support for entrepreneurship Award-winning employer |
1,713 |
| 15 |
Universität Siegenuni-siegen.de
A university based in Siegen, Germany, previously known as University-Gesamthochschule Siegen, with around 18,600 students enrolled in the winter semester 2013/2014 |
1,648 |
| 16 |
FernUniversität in Hagenfernuni-hagen.de
Germany's only state distance-learning university offers flexible degree programs and research opportunities in various fields, focusing on blended learning and student support |
1,378 |
| 17 |
Düsseldorf University of Applied Scienceshs-duesseldorf.de
A large university of applied sciences in North Rhine-Westphalia offering diverse courses in architecture, design, engineering, media, social sciences, and economics |
1,321 |
| 18 |
Bonn-Rhein-Sieg University of Applied Sciencesh-brs.de
A dynamic public university in Germany with over 9,000 students offering 40 programs in business, engineering, sciences, and social security Located in Sankt Augustin |
1,041 |
| 19 |
University of Applied Sciences and Arts Dortmundfh-dortmund.de
A future-oriented university with over a century of history, offering practical problem-solving education in various fields to over 14,500 students |
1,027 |
| 20 |
International School of Management, Germanyism.de
A leading private business school in Germany offering practice-oriented degree programs with international focus, preparing tomorrow's leaders for global businesses |
952 |
| 21 |
Hochschule Bielefeldhsbi.de
Design company in Nordrhein-Westfalen, Germany specializing in providing innovative design solutions and services |
919 |
| 22 |
Hochschule Bochumhochschule-bochum.de
A modern university specializing in technology and business, offering academic programs linked closely to industry with strong partnerships in the Ruhr area Offers 23 pathways across six departments |
846 |
| 23 |
German Center for Neurodegenerative Diseases (DZNE)dzne.de
Biomedical research institute focusing on neurodegenerative diseases Develops strategies for prevention, diagnosis, treatment, and care Operates in Germany and collaborates worldwide |
825 |
| 24 |
Deutsche Sporthochschule Kölndshs-koeln.de
Germany's only sport university offers quality education, international research, state-of-the-art programs, and renowned anti-doping support in various disciplines |
809 |
| 25 |
Fachhochschule Südwestfalenfh-swf.de
South Westphalia University of Applied Sciences offers modern and pioneering courses, individual support, and top rankings to train specialists and leaders for various industries |
715 |
| 26 |
OWL University of Applied Sciences and Artsth-owl.de
A university offering education and research in engineering, economics, life sciences, design, and construction across three campuses in Germany |
634 |
| 27 |
Hochschule Ruhr West University of Applied Scienceshochschule-ruhr-west.de
A university in the western Ruhr region offering practical education in areas such as computer science, engineering, mathematics, and business administration |
617 |
| 28 |
Werkzeugmaschinenlabor, WZL der RWTH Aachenwzl.rwth-aachen.de
An innovative production engineering institute with four major departments and a staff of nearly 600 at RWTH Aachen |
450 |
| 29 |
Bundesinstitut für Berufsbildung (BIBB)bibb.de
The company works on developing vocational education and training in Germany, promoting innovations, and connecting with stakeholders to address current challenges |
440 |
| 30 |
Fraunhofer Institute for Production Technology IPTipt.fraunhofer.de
Researching and developing sustainable, digitalized production technologies for various industries while offering career opportunities for students and graduates in science and industry |
373 |
| 31 |
Fraunhofer IMLiml.fraunhofer.de
Research institute developing logistics solutions for immediate business use and conducting initial research, focusing on areas like AI, IoT, and transportation systems. |
367 |
| 32 |
Fraunhofer ILTilt.fraunhofer.de
A leading research institute specializing in laser technology development and applications, offering expertise in areas such as laser sources, components, and manufacturing technologies |
354 |
| 33 |
Bundesanstalt für Arbeitsschutz und Arbeitsmedizin (BAuA)baua.de
The company conducts interdisciplinary research to promote safe, healthy, and fulfilling work environments, while also providing policy advice and running Germany's largest work exhibition |
345 |
| 34 |
Fraunhofer UMSICHTumsicht.fraunhofer.de
Researching and developing solutions for circular economy, carbon management, green hydrogen, and local energy systems to support the UN Sustainable Development Goals |
342 |
| 35 |
Fraunhofer FKIEfkie.fraunhofer.de
The company specializes in communication, information processing, and ergonomic systems to detect and prevent dangers, developing intelligent systems for security and decision-making support |
339 |
| 36 |
Fraunhofer IAISiais.fraunhofer.de
A leading scientific institute specializing in Artificial Intelligence, Machine Learning, and Big Data, supporting companies in optimizing products, services, and processes for digital transformation |
318 |
| 37 |
Fraunhofer FITfit.fraunhofer.de
A leading institute in digitization, Industry 40, and IoT, developing human-centric IT solutions to drive digital transformation in various sectors |
306 |
| 38 |
Fraunhofer IEMiem.fraunhofer.de
The company provides innovative solutions in advanced engineering, digital transformation, data analytics, automation, and robotics for various industries and public institutions |
231 |
| 39 |
Fraunhofer-Institut für Molekularbiologie und Angewandte Oekologie IMEime.fraunhofer.de
The company conducts applied life sciences research for industries, healthcare, agriculture, and environmental protection, focusing on developing new technologies for diagnostics and therapies |
216 |
| 40 |
ITA Institut für Textiltechnik der RWTH Aachen Universityita.rwth-aachen.de
An institute connected to RWTH Aachen University focusing on textile engineering research, technology transfer, and textile processing with advanced facilities and equipment |
193 |
| 41 |
Gesellschaft für Anlagen- und Reaktorsicherheit gGmbHgrs.de
A non-profit research organization focusing on nuclear and conventional plant safety, providing expertise, research, and consulting services globally |
185 |
| 42 |
Fraunhofer ISSTisst.fraunhofer.de
A leading research institute in Europe developing data space technologies for secure data exchange, creating pioneering data ecosystems, and offering complete system solutions |
142 |
| 43 |
EHI Retail Instituteehi.org
A scientific institute serving the retail industry by conducting research, organizing conferences, and offering tailored research projects to address specific problems |
82 |
| 44 |
Institute of Aerospace Systemsilr.rwth-aachen.de
The aerospace systems institute at RWTH Aachen University conducts research and teaches aerospace technology, focusing on eco-efficient transport vehicles and new mobility concepts |
27 |
| 45 |
GEMIT Institut der Hochschule Niederrheinhs-niederrhein.de
A research institute focused on digital transformation and improving business processes affiliated with Niederrhein University of Applied Sciences |
16 |
| 46 |
BioökonomieREVIERbiooekonomierevier.de
Driving sustainable bioeconomy transformation in Rhineland through innovation, knowledge transfer, networking, and development of biobased business models and value chains. |
12 |
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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 2, 2026.
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