| # | Company | Employees |
|---|---|---|
| 1 |
Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbHgiz.de
Provides international cooperation for sustainable development and education, helping shape a future worth living worldwide, with over 50 years of experience. |
26,333 |
| 2 |
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 |
| 3 |
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 |
| 4 |
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 |
| 5 |
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 |
| 6 |
Uniperuniper.energy
Large-scale energy generation and trading company with advanced assets and expertise delivering competitive, reliable energy products and services across Europe. |
5,189 |
| 7 |
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 |
| 8 |
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 |
| 9 |
WDRwww1.wdr.de
A leading media company in Germany, the Westdeutsche Rundfunk (WDR) offers diverse, high-quality programs to contribute to media diversity and employs a diverse workforce |
4,466 |
| 10 | 4,318 | |
| 11 |
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 |
| 12 |
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 |
| 13 |
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 |
| 14 |
Uniklinik Kölnuk-koeln.de
Innovative university hospital in Cologne, Germany, focused on providing top-notch medical care, research, education, and social responsibility |
3,472 |
| 15 |
Deutsche Welledw.com
Provides unbiased news and information in 32 languages worldwide, focusing on human rights, democracy, health, and technology. |
3,244 |
| 16 |
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 |
| 17 |
Uniklinik RWTH Aachenukaachen.de
Leading university hospital offering top-tier medical care, research, and education in a unique setting that fosters interdisciplinary collaboration and excellence in healthcare |
2,337 |
| 18 |
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 |
| 19 |
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 |
| 20 |
Bergische Universität Wuppertaluni-wuppertal.de
A modern and innovative university in North Rhine-Westphalia offering a wide range of study programs, excellent academic support, and promising career opportunities |
1,951 |
| 21 |
Universitätsklinikum Bonnukbonn.de
The company provides innovative high-performance healthcare in Germany, offering top-level medical care in 32 clinics and 25 institutes, prioritizing patient health and well-being |
1,789 |
| 22 |
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 |
| 23 |
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 |
| 24 |
Polizei NRWpolizei.nrw
A law enforcement agency in Nordrhein-Westfalen, Germany with over 50,000 employees, including 42,000 police officers, fulfilling tasks under the state's Ministry of the Interior |
1,600 |
| 25 |
Universitätsklinikum Düsseldorfuniklinik-duesseldorf.de
Leading university hospital in Düsseldorf, providing high-level medical care, research, and medical education with a focus on innovation and specialized treatments |
1,557 |
| 26 |
Knappschaft Kliniken GmbHknappschaft-kliniken.de
A healthcare company based in Bochum, Germany, providing medical services and care to patients in the region |
1,554 |
| 27 |
AOK Rheinland/Hamburg - Die Gesundheitskasseaok.de
The company is a health insurance provider in Germany, offering personalized service and reliable health information to over three million insured individuals |
1,511 |
| 28 |
FH Aachen University of Applied Sciencesfh-aachen.de
A leading German university with over 14,000 students, offering a wide range of programs in STEM, business, and design, including dual study options Visit their website for more information |
1,500 |
| 29 |
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 |
| 30 |
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 |
| 31 |
ITZBunditzbund.de
The company is leading a comprehensive IT consolidation project for the German federal government, including centralizing IT operations, developing common applications, and establishing a federal cloud |
1,305 |
| 32 |
Universitätsklinikum Münsterukm.de
Provides top-tier medical care, conducts advanced research, and offers excellent teaching. Also a major employer with diverse career and training opportunities. |
1,262 |
| 33 |
Kreissparkasse Kölnksk-koeln.de
A reliable partner for people, businesses, and communities in the region, combining economic success with social and environmental responsibility |
1,188 |
| 34 |
Stadt Essenessen.de
Municipal government in Essen, North Rhine-Westphalia, overseeing local governance, decision-making, and services for the city's residents |
1,172 |
| 35 |
Sparkasse KölnBonnsparkasse-koelnbonn.de
A regional financial institution offering personalized services, digital solutions, and career opportunities while supporting various community projects in education, social welfare, and culture |
1,103 |
| 36 |
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 |
| 37 |
Bundesanstalt für Immobilienaufgabenbundesimmobilien.de
Management and modernization of federal properties including ministries, military sites, forests, ensuring accessibility, safety, energy standards, and affordable housing support. |
1,039 |
| 38 |
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 |
| 39 |
Information und Technik Nordrhein-Westfalen (IT.NRW)it.nrw
Providing IT services and statistical data management for the state administration of North Rhine-Westphalia, Germany. |
1,016 |
| 40 |
Federal Office of Administrationkarriere.bva.bund.de
This organization provides central services for the Federal Government of Germany |
993 |
| 41 |
BLB NRWblb.nrw.de
An innovative real estate management entity in North Rhine-Westphalia, managing, renting, and constructing properties for various state departments and institutions to support the region's development and sustainability goals |
987 |
| 42 |
Stadt Münsterstadt-muenster.de
Provides municipal administration and public services for the city, managing local governance, community needs, and city operations. |
964 |
| 43 |
Hochschule Bielefeldhsbi.de
Design company in Nordrhein-Westfalen, Germany specializing in providing innovative design solutions and services |
919 |
| 44 |
Landschaftsverband Westfalen-Lippe (LWL)www2.lwl.org
A local government association providing social, disability, youth, psychiatric, and cultural services through 35 special schools, 21 hospitals, 18 museums, and more |
877 |
| 45 |
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 |
| 46 |
Universitätsmedizin Essenume.de
Leader in healthcare in the Ruhr area, operating multiple hospitals and specialized centers, providing top-notch medical care, research, and education |
840 |
| 47 |
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 |
| 48 |
NRW.BANKnrwbank.de
Supports North Rhine-Westphalia with financial products and advisory services in economy, housing, infrastructure, and municipal development programs. |
825 |
| 49 |
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 |
| 50 |
Westfälische Hochschulew-hs.de
Focused on practical education and applied research, offering technical-economic programs to prepare students for future professional challenges. |
741 |
| 51 |
Kliniken der Stadt Kölnkliniken-koeln.de
A leading provider of healthcare services in Cologne, Germany, with a focus on high-quality medical treatment and respect for human dignity regardless of nationality or beliefs |
733 |
| 52 |
Stadtwerke Düsseldorfswd-ag.de
Energy and water provider in Düsseldorf and surrounding areas, offering services in electricity, gas, heat, water, renewable energy, and waste disposal Promoting arts, culture, sports, and science |
731 |
| 53 |
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 |
| 54 |
Rhine-Waal Universityhochschule-rhein-waal.de
A university offering innovative, international, and interdisciplinary education with a focus on scientific, application-oriented, and internationally relevant programs |
714 |
| 55 |
Projektträger Jülich, Forschungszentrum Jülich GmbHptj.de
As a leading project sponsor in Germany, we support public and private entities in research and innovation management, focusing on funding programs and developing a competitive research and innovation landscape |
703 |
| 56 |
DLR Projektträgerprojekttraeger.dlr.de
Provides comprehensive knowledge-based services for managing research, education, and innovation, including strategy advice, funding program implementation, knowledge transfer, and impact evaluation for clients. |
667 |
| 57 |
Koelnmesse GmbHkoelnmesse.com
Organizes around eighty annual trade fairs and exhibitions globally across sectors like food, furniture, and digital media in physical, digital, and hybrid formats. |
657 |
| 58 |
Stadt Wuppertalwuppertal.de
The company operates in Wuppertal, the largest city in the Bergisches Land region in western Germany, focusing on industry, economy, education, and culture |
653 |
| 59 |
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 |
| 60 |
Hamm-Lippstadt University of Applied Scienceshshl.de
A University of Applied Sciences offering diverse, market-focused study programs with practical experience, interdisciplinary teaching, and a focus on individual strengths |
627 |
| 61 |
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 |
| 62 |
AOK NordWestaok.de
AOK NordWest is one of the top ten statutory health insurance funds in Germany, advocating for the health of 29 million insured individuals |
614 |
| 63 |
Stadtsparkasse Düsseldorfsskduesseldorf.de
A leading financial institution in Düsseldorf and Monheim am Rhein, offering banking services to businesses, supporting digital transformation, sustainability, and regional initiatives |
611 |
| 64 |
Kölner Verkehrs-Betriebe AGkvb.koeln
The company provides public transportation services in Cologne, Germany, with a network of buses and trams serving over 800,000 passengers daily |
596 |
| 65 |
Stadt Bielefeldbielefeld.de
A diverse and family-friendly employer in Bielefeld, offering a variety of job opportunities in fields such as waste management and childcare |
512 |
| 66 |
Düsseldorf Airportdus.com
The Düsseldorf Airport is the largest airport in North Rhine-Westphalia, playing a vital role in meeting the mobility needs of residents and businesses in the region |
495 |
| 67 |
Sparkasse Münsterland Ostsparkasse-muensterland-ost.de
A leading bank in Germany with a strong focus on trust, security, customer service, and employee development, offering extensive financial services and support |
433 |
| 68 |
Sparkasse Krefeldsparkasse-krefeld.de
A leading financial institution in the Krefeld and Viersen area offering personalized banking solutions, supporting community projects, and providing career opportunities for all |
365 |
| 69 |
Rheinbahn AGrheinbahn.de
A transportation company in Düsseldorf and surrounding areas, providing bus and train services to over 760,000 passengers daily on 135 lines |
361 |
| 70 |
Sparkasse Dortmundsparkasse-dortmund.de
A leading financial institution in Dortmund and Schwerte, providing a wide range of financial services to over 330,000 private and 30,000 corporate clients |
359 |
| 71 |
StädteRegion Aachenstaedteregion-aachen.de
This company serves over 560,000 people in ten cities by providing various services through 29 departments, aiming to make the region more livable, socially just, and future-proof |
346 |
| 72 |
Sparkasse Neusssparkasse-neuss.de
A leading universal credit institution offering personalized investment and credit services, with a strong focus on local economic development and community support |
327 |
| 73 |
Sparkasse Paderborn-Detmold-Höxtersparkasse-pdh.de
The company is the oldest savings bank in Germany, providing a wide range of products and services for individuals, businesses, and institutions in the region They are deeply rooted in their community, actively supporting various charitable projects in education, sports, culture, environment, and social causes They are committed to fulfilling their societal responsibility for a better region and the people who live there |
321 |
| 74 |
Sparkasse Duisburgsparkasse-duisburg.de
A strong, modern regional bank with a focus on meeting customer financial needs, supporting local economy, culture, and sports in Duisburg and Kamp-Lintfort |
312 |
| 75 |
Cologne Bonn Airportkoeln-bonn-airport.de
A major commercial airport in Germany serving over 88 million passengers and 971,000 tonnes of air cargo annually, with 120 European and international destinations |
304 |
| 76 |
duisport - Duisburger Hafen AGduisport.de
Operates the world's largest inland port, providing integrated logistics solutions, multimodal transport, industrial site management, and developing port and terminal concepts. |
289 |
| 77 |
Sparkasse Westmünsterlandsparkasse-westmuensterland.de
Financial services provider offering information on imprint, data protection, and terms of use through their website Serving the Westmuensterland region |
277 |
| 78 | 272 | |
| 79 |
KNAPPSCHAFTknappschaft.de
A health insurance company providing personalized support, seamless medical care, bonus programs, and top benefits like stress management courses to promote wellness |
271 |
| 80 |
Stadtsparkasse Wuppertalsparkasse-wuppertal.de
A public institution in Wuppertal offering local banking services, digital solutions, and online banking, with a focus on sustainability, climate protection, and social engagement |
263 |
| 81 |
Sparkasse Aachensparkasse-aachen.de
A leading financial service provider in Aachen region, offering fair and personalized services to customers with a strong local presence |
260 |
| 82 |
Stadtsparkasse Mönchengladbachsparkasse-moenchengladbach.de
A trusted financial partner in Mönchengladbach, supporting and advising businesses with financing, payments, business checks, and expertise in various sectors |
257 |
| 83 |
Sparkasse Bochumsparkasse-bochum.de
A local credit institution in Bochum, providing financial services and advice to individuals and businesses since 1838, with a focus on personalized solutions |
251 |
| 84 |
Bw Bekleidungsmanagement GmbHbwbm.de
The company manages the entire value chain of clothing for the German military, providing clothing for 250,000 personnel and offering diverse career opportunities |
250 |
| 85 |
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 |
| 86 |
Sparkasse Vest Recklinghausensparkasse-re.de
A regional Sparkasse focused on sustainable development, providing financial services and support for individuals, businesses, and the community in the Recklinghausen district |
213 |
| 87 |
Kreissparkasse Steinfurtksk-steinfurt.de
The company provides banking services to individuals, businesses, and entrepreneurs in the Steinfurt district through various branches and online platforms |
213 |
| 88 |
NEW-Gruppenew.de
The company is a municipal service provider in the Lower Rhine region, offering energy, water, public transportation, and recreational services They prioritize innovation and regional partnerships |
198 |
| 89 |
Kreissparkasse Düsseldorfkreissparkasse-duesseldorf.de
We are passionate about creating a more livable and loveable region for all |
194 |
| 90 |
Sparkasse Dürensparkasse-dueren.de
The company is a market leader in private and corporate banking services in the Düren / Jülich region |
193 |
| 91 |
Sparkasse Bielefeldsparkasse-bielefeld.de
The company is a bank in Bielefeld that focuses on its employees, customers, and the community, offering personalized solutions and supporting local initiatives |
190 |
| 92 |
Kreissparkasse Halle-Wiedenbrückkskhwd.de
A new and modern banking institution in Kreis Gütersloh, fostering strong community connections through quality service and local projects |
188 |
| 93 |
Stadt-Sparkasse Solingensparkasse-solingen.de
This company provides financial services and banking solutions to individuals and businesses in Solingen |
178 |
| 94 |
HGK Häfen und Güterverkehr Köln AGhgk.de
Logistics company operating Europe-wide, offering integrated transport services, utilizing environmentally friendly ship and rail, managing inland ports, shipping, and rail freight operations. |
178 |
| 95 |
LBS Immobilien GmbH NordWestlbs-immobilien-profis.de
One of Germany's largest real estate brokers, specializing in residential properties Part of the Sparkassen-Finanzgruppe, with a strong presence in multiple regions Offering career opportunities in the real estate industry |
170 |
| 96 |
RSGV - Rheinischer Sparkassen- und Giroverbandrsgv.de
The company acts as a mediator and connector between Sparkassen and affiliated companies, promoting societal engagement, personal development, diversity, and work-life balance |
161 |
| 97 |
Sparkasse Mülheim an der Ruhrsparkasse-muelheim-ruhr.de
A local financial institution offering banking services to individuals and businesses, supporting the community through sponsorships, and providing opportunities for young professionals through apprenticeships |
158 |
| 98 |
Stadt Moersmoers.de
Provides municipal services and local government administration for residents, businesses, and visitors in the city of Moers. |
156 |
| 99 |
Sparkasse Hellweg-Lippesparkasse-hellweg-lippe.de
A leading and modern financial institution offering a range of attractive services focused on customer satisfaction, community support, and online accessibility |
141 |
| 100 |
Sparkasse Leverkusensparkasse-lev.de
A banking company located in Leverkusen, Germany, providing financial services to individuals and businesses in the local area |
133 |
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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 Oct 24, 2026.
More company lists in North Rhine-Westphalia
- The largest companies in North Rhine-Westphalia 2,663
- Family-owned companies in North Rhine-Westphalia 254
- Transportation, Logistics, Supply Chain and Storage companies in North Rhine-Westphalia 252
- Retail chains in North Rhine-Westphalia 242
- Financial services firms in North Rhine-Westphalia 226
- Critical infrastructure operators in North Rhine-Westphalia 222
- Software Development companies in North Rhine-Westphalia 198
- SaaS companies in North Rhine-Westphalia 187
- Manufacturers in North Rhine-Westphalia 174
- IT Services and IT Consulting companies in North Rhine-Westphalia 151
- Financial Services companies in North Rhine-Westphalia 116
- Logistics companies in North Rhine-Westphalia 113
- Hardware manufacturers in North Rhine-Westphalia 105
- IT services companies in North Rhine-Westphalia 99
- Machinery Manufacturing companies in North Rhine-Westphalia 86
- Banking companies in North Rhine-Westphalia 78
- Motor Vehicle Manufacturing companies in North Rhine-Westphalia 78
- Distributors and wholesalers in North Rhine-Westphalia 75
- Automotive manufacturers and suppliers in North Rhine-Westphalia 72
- Retail companies in North Rhine-Westphalia 67
- Food and Beverage Manufacturing companies in North Rhine-Westphalia 66
- Insurance companies in North Rhine-Westphalia 63
- Energy companies in North Rhine-Westphalia 61
- Wholesale companies in North Rhine-Westphalia 59
The same list elsewhere in Germany
- Public sector organisations in Germany 627
- Public sector organisations in Bavaria 96
- Public sector organisations in Baden-Württemberg 84
- Public sector organisations in Lower Saxony 59
- Public sector organisations in Hesse 53
- Public sector organisations in Rhineland-Palatinate 29
- Public sector organisations in Saxony 28
- Public sector organisations in Berlin 44