| # | Company | Employees |
|---|---|---|
| 1 |
DB InfraGOdbinfrago.com
The company shapes the future of German railway infrastructure by combining the strengths of two existing entities, serving the public good |
10,892 |
| 2 |
Goethe University Frankfurtuni-frankfurt.de
A research-oriented university in Frankfurt, Germany, offering a wide range of degree programs and producing pioneering achievements in various fields |
5,756 |
| 3 |
European Central Bankecb.europa.eu
Central bank maintaining the euro's purchasing power and price stability across 21 European Union countries using the single currency since 1999. |
5,044 |
| 4 | 4,662 | |
| 5 |
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 |
| 6 |
Deutsche Bundesbankbundesbank.de
Central bank operating at financial markets, politics, economy, science intersections, promoting digitalization, societal change, and employee development. |
3,520 |
| 7 |
Justus Liebig University Giessenuni-giessen.de
A top research university in Germany, JLU offers a broad range of subjects, focusing on cultural studies and life sciences, with a strong emphasis on interdisciplinary research |
3,184 |
| 8 |
University of Kasseluni-kassel.de
A young university promoting openness, interdisciplinary thinking, and entrepreneurial initiative, with a unique focus on environmental studies, teacher training, and cultural sciences |
2,673 |
| 9 |
DB Fernverkehr AGdeutschebahn.com
A railway company specializing in long-distance passenger transportation, operating as a subsidiary of Deutsche Bahn AG in Frankfurt, Germany |
2,162 |
| 10 |
Helabahelaba.com
The company is a leading financial institution in Frankfurt, offering comprehensive financial services to businesses, banks, and institutional investors, as well as innovative products to Sparkassen |
1,864 |
| 11 |
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 |
| 12 |
Frankfurt University of Applied Sciencesfrankfurt-university.de
A leading university of applied sciences in Frankfurt, Germany offering a wide range of engineering, management, and social science programs |
1,461 |
| 13 |
Hessischer Rundfunkhr.de
A leading media company in Hesse, offering diverse radio, TV, and online programs, cultural events, and independent reporting financed through the license fee |
1,412 |
| 14 |
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 |
| 15 |
Technische Hochschule Mittelhessenthm.de
The company offers education, research, and further training in 80 Bachelor's and Master's programs across three locations, focusing on student development and research |
1,344 |
| 16 |
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 |
| 17 |
Messe Frankfurt GmbHmessefrankfurt.com
Organizes global trade fairs and congresses while providing exhibition ground rentals, event construction, marketing, personnel, and catering services across a worldwide sales network. |
1,147 |
| 18 |
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 |
| 19 |
EUMETSATeumetsat.int
The company operates a system of meteorological satellites to monitor weather, climate, and the environment, providing data to European meteorological services and other users worldwide |
861 |
| 20 |
KfW IPEX-Bankkfw-ipex-bank.de
Provides tailored medium and long-term financing solutions for export projects, international infrastructure, raw materials security, and global climate protection across diverse industrial sectors. |
805 |
| 21 |
AOK Hessen. Die Gesundheitskasse.aok.de
Insurance company based in Bad Homburg, Hesse, Germany, offering various insurance services in the region |
758 |
| 22 |
Nassauische Sparkassenaspa.de
A banking company based in Wiesbaden, Germany, providing financial services #meinenaspa #Naspa |
750 |
| 23 |
Frankfurter Sparkassefrankfurter-sparkasse.de
A leading financial institution in Frankfurt, offering diverse financial experiences, regional engagement, and professional growth opportunities for employees through innovative ideas and values |
682 |
| 24 |
Klinikum Kassel GmbHgesundheit-nordhessen.de
A leading regional healthcare provider offering a wide range of medical services, specialized clinics, interdisciplinary centers, and care for thousands of patients annually |
679 |
| 25 |
GSI Helmholtz Centre for Heavy Ion Researchgsi.de
A research facility in Germany operates a large-scale accelerator for heavy ions, hosting experiments and advancing technology while building an international research facility for new discoveries |
671 |
| 26 |
Deutscher Wetterdienstdwd.de
The German Meteorological Service is a federal agency responsible for meeting meteorological needs in Germany, offering diverse tasks and opportunities for employees |
621 |
| 27 |
Vitoskarriere.vitos.de
A strategic managementholding of twelve non-profit entities providing psychiatric, psychosomatic, and forensic-psychiatric diagnostic and treatment services Offering career opportunities and investing in employee development |
546 |
| 28 |
Hessen Mobil - Straßen- und Verkehrsmanagementmobil.hessen.de
Hessen Mobil manages road construction, mobility strategies, planning, construction, maintenance, and traffic management in Hessen, ensuring safe and sustainable transportation infrastructure |
448 |
| 29 |
Hessische Zentrale für Datenverarbeitunghzd.hessen.de
Central IT service provider for Hessen government, delivering innovative, secure digital solutions and supporting administrative digital transformation with expert consulting. |
447 |
| 30 |
Rentenbankrentenbank.de
Germany's development agency for agribusiness and rural areas, providing low-interest financing for agriculture-related investments through promotional loans extended via other banks |
342 |
| 31 |
Taunus Sparkassetaunussparkasse.de
A regional bank in the Rhein-Main area with a team of 750 employees, providing reliable banking services to individuals, businesses, and communities while supporting social projects and offering opportunities for personal growth |
338 |
| 32 |
Stadt Offenbachoffenbach.de
A team of 1,300 passionate individuals in Offenbach developing the future of the city through innovative and pragmatic solutions |
336 |
| 33 |
Landkreis Darmstadt-Dieburgladadi.de
The company is a regional administration located in Darmstadt-Dieburg, Hesse, with headquarters in Kranichstein and a second office in Dieburg |
297 |
| 34 |
German National Tourist Boardgermany.travel
Promotes Germany as a travel destination worldwide, emphasizing sustainable tourism, conducting market-specific campaigns, and sharing tourism industry knowledge. |
287 |
| 35 |
Sparkasse Oberhessensparkasse-oberhessen.de
Leading financial partner in the Wetterau and Vogelsbergkreis regions, offering a wide range of banking services for private and corporate clients with a strong focus on quality and customer service |
262 |
| 36 |
Stadt Hanauhanau.de
The company is a growing and economically thriving city in eastern Rhein-Main area, offering various services and amenities to its diverse population |
234 |
| 37 |
Kasseler Sparkassekasseler-sparkasse.de
A leading credit institution in North Hesse with over 900 employees, significantly contributing to the economy of Kassel region |
226 |
| 38 |
Sparkasse Langen-Seligenstadtsls-direkt.de
With over 600 employees and a balance sheet of around 4 billion euros, we support individuals and businesses in Offenbach district through community-oriented banking services |
196 |
| 39 |
Sparkasse Hanausparkasse-hanau.de
A nonprofit public institution in Hanau, providing banking services as a result of mergers in 1991 Member of Sparkassen-Finanzgruppe Hessen-Thüringen |
178 |
| 40 |
Sparkasse Marburg-Biedenkopfskmb.de
A regional financial institution with over 50% market share in the private customer sector, offering a dense network of branches and ATMs Specializing in supporting local businesses and entrepreneurs |
151 |
| 41 |
Stadt Rüsselsheim am Mainruesselsheim.de
City combines industrial heritage with innovation, offering cultural, educational, residential, and economic opportunities focused on sustainability and technology. |
133 |
| 42 |
HEAG mobilo GmbHheagmobilo.de
Leading mobility service provider in South Hesse, focusing on attractive and efficient local public transport in Darmstadt and surrounding areas. |
132 |
| 43 |
Hochschule Darmstadt hda
A higher education institution located in Dieburg, Germany, providing academic programs and opportunities for students to enhance their learning and skills |
130 |
| 44 |
KfW Capitalkfw.de
Invests in German and European venture capital and venture debt funds, strengthening their capital base to provide growth companies better access to capital. |
122 |
| 45 |
Kreissparkasse Groß-Geraukskgg.de
A Hessen-based savings bank with 19 branches and 500 employees focusing on performance, service, and customer intimacy in the Rhein-Main area Offers personal development opportunities |
103 |
| 46 |
Sparkasse Starkenburgsparkasse-starkenburg.de
A regional bank supporting individuals in finance and insurance, with a focus on employee expertise and customer service in the Bergstraße region |
99 |
| 47 |
Sparkasse Gießensparkasse-giessen.de
A comprehensive financial services company providing personal and business support through modern banking solutions, in-person consultations, and dedicated services for students and real estate needs |
99 |
| 48 |
Sparkasse Dillenburgsparkasse-dillenburg.de
A market leader in the northern Lahn-Dill district, with a balance sheet of around 16 billion euros Employs 300 staff across 15 locations |
78 |
| 49 |
Kreissparkasse Gelnhausenksk-gelnhausen.de
A regional Sparkasse serves as a key financial provider for individuals and businesses, offering a wide range of services and support |
70 |
| 50 |
Sparkasse Dieburgsparkasse-dieburg.de
A successful and future-oriented bank in Hessen-Thüringen, operating in the southern Rhein-Main area with over 3 billion Euro in assets |
60 |
| 51 |
Kreissparkasse Weilburgksk-weilburg.de
Local financial partner since 1904 in the Limburg-Weilburg region Largest employer, supporter of businesses, clubs, and communities Expert in finance and neighborly support |
46 |
| 52 |
ivm GmbH (Integriertes Verkehrs- und Mobilitätsmanagement Region Frankfurt RheinMain)ivm-rheinmain.de
The company works with various stakeholders to promote sustainable mobility through initiatives, programs, and services in the Frankfurt RheinMain region |
17 |
| 53 |
Lawyers Pension Scheme of Hessevw-ra-hessen.de
This company provides pension schemes to offer members protection in old age, disability, and death |
11 |
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 Oct 24, 2026.
More company lists in Hesse
- The largest companies in Hesse 1,227
- Financial services firms in Hesse 192
- Critical infrastructure operators in Hesse 131
- Financial Services companies in Hesse 124
- Transportation, Logistics, Supply Chain and Storage companies in Hesse 119
- Retail chains in Hesse 93
- SaaS companies in Hesse 87
- Software Development companies in Hesse 82
- Banking companies in Hesse 73
- IT Services and IT Consulting companies in Hesse 69
- Family-owned companies in Hesse 68
- Manufacturers in Hesse 64
- IT services companies in Hesse 45
- Logistics companies in Hesse 45
- Hospitality companies in Hesse 37
- Motor Vehicle Manufacturing companies in Hesse 36
- Business Consulting and Services companies in Hesse 33
- Automotive manufacturers and suppliers in Hesse 31
- Hardware manufacturers in Hesse 31
- Distributors and wholesalers in Hesse 29
- Pharmaceutical companies in Hesse 29
- Consulting firms in Hesse 28
- Chemical Manufacturing companies in Hesse 27
- Insurance companies in Hesse 26
The same list elsewhere in Germany
- Public sector organisations in Germany 627
- Public sector organisations in North Rhine-Westphalia 124
- Public sector organisations in Bavaria 96
- Public sector organisations in Baden-Württemberg 84
- Public sector organisations in Lower Saxony 59
- Public sector organisations in Rhineland-Palatinate 29
- Public sector organisations in Saxony 28
- Public sector organisations in Berlin 44