| # | Company | Employees |
|---|---|---|
| 1 |
University of Hamburguni-hamburg.de
A large university in Germany with about 44,000 students, 3,990 academic staff members, and 150 different buildings spread throughout the city |
5,760 |
| 2 |
Universitätsklinikum Hamburg Eppendorfuke.de
A diverse team of over 14,900 employees at a leading healthcare institution collaborate to improve the well-being of individuals through research, education, and patient care |
5,134 |
| 3 |
Techniker Krankenkassetk.de
A top health insurance provider in Germany offering excellent digital services, transparency, special care, health promotion, and more Also recognized as a great employer |
3,731 |
| 4 |
Norddeutscher Rundfunkndr.de
A public media organization in northern Germany with TV, radio, and digital offerings, focusing on news, cultural identity, and classical music |
2,029 |
| 5 |
DAK-Gesundheitdak.de
Provides health insurance coverage and medical services to 5.7 million insured individuals with 10,700 employees across 400 locations. |
1,891 |
| 6 |
Hamburg University of Applied Scienceshaw-hamburg.de
Educates future specialists, managers; develops interdisciplinary knowledge, problem-solving skills, and global responsibility. Advances applied sciences for regional impact. |
1,885 |
| 7 |
Hamburg University of Technologytuhh.de
The company is a technical university in Hamburg that trains engineers to tackle climate change, focusing on sustainability, innovation, and international cooperation |
1,518 |
| 8 |
Hamburger Hochbahn AGhochbahn.de
Operates extensive bus and subway network in Hamburg with over 1,500 stops, employing 6,300 staff across diverse roles. |
1,072 |
| 9 |
Helmut-Schmidt-Universität/Universität der Bundeswehr Hamburghsu-hh.de
Academic institution providing competitive fundamental and applied research while offering high quality teaching for military personnel within a diverse campus environment in Hamburg. |
960 |
| 10 |
Hamburger Energienetze GmbHhamburger-energienetze.de
Utilities company based in Hamburg, Germany, specializing in managing the electricity grid and providing power supply services to the area |
828 |
| 11 |
HAMBURG WASSERhamburgwasser.de
Hamburg Wasser is a company dedicated to providing clean drinking water, sustainable wastewater disposal, and energy solutions, seeking motivated individuals to join their team |
644 |
| 12 |
VBG – Ihre gesetzliche Unfallversicherungvbg.de
The company is a major German statutory accident insurance provider, providing safety and support for millions of insured individuals and businesses |
573 |
| 13 |
Hamburger Energiewerke GmbHhamburger-energiewerke.de
The company is a 100% city-owned energy provider in Hamburg, committed to shaping the city's energy future, promoting the energy transition, and limiting global warming |
495 |
| 14 |
SAGA Unternehmensgruppesaga.hamburg
This company is economically successful, socially responsible, and environmentally friendly They rent out residential and commercial properties in Hamburg, focusing on sustainable development |
488 |
| 15 |
HafenCity Universität Hamburg (HCU)hcu-hamburg.de
A university in Hamburg combining design, engineering, and social sciences for construction and urban development, offering interdisciplinary research and teaching |
479 |
| 16 |
Elbkinder Vereinigung Hamburger Kitas gGmbHelbkinder-kitas.de
An organization in Hamburg providing childcare services to over 32,000 children daily, with 7,000 employees across 220 locations in the city and metropolitan area |
476 |
| 17 |
Berufsgenossenschaft für Gesundheitsdienst und Wohlfahrtspflege (BGW)bgw-online.de
The company is a statutory accident insurance provider for health and welfare workers, offering a range of benefits including a meaningful career, job security, and flexible work options |
456 |
| 18 |
Stadtreinigung Hamburgstadtreinigung.hamburg
A major waste management and cleaning service provider in Hamburg, offering waste collection, disposal, cleaning services for households, businesses, and public spaces |
390 |
| 19 |
Hamburg Airporthamburg-airport.de
An international gateway airport in Northern Germany, operating as a significant economic growth factor in the region through passenger and cargo traffic |
390 |
| 20 |
Fördern & Wohnen (F&W)foerdernundwohnen.de
Social enterprise in Hamburg providing housing and support for homeless, refugees, people with mental illnesses and disabilities, and those facing difficulties in the housing market |
332 |
| 21 |
Bundesamt für Seeschifffahrt und Hydrographie (Federal Maritime and Hydrographic Agency)bsh.de
The company is a higher federal authority responsible for maritime tasks such as safety, environmental protection, surveying, forecasting, and testing/approval of marine equipment and systems |
314 |
| 22 |
Bernhard Nocht Institute for Tropical Medicinebnitm.de
Research, diagnostics, and training focused on tropical diseases, emerging infections, pathogen biology, and disease control with high biosafety labs. |
308 |
| 23 |
Landesbetrieb Straßen, Brücken und Gewässer (LSBG)lsbg.hamburg.de
This company is a state agency, part of the Hamburg administration, dedicated to roads, bridges, and water management under the Department for Traffic and Mobility Transition |
302 |
| 24 |
vhh.mobilityvhh-mobility.de
A leading municipal bus operator in Germany with 2,500 employees, 682 buses, and 17 locations, providing modern services and transporting 615 million passengers annually |
208 |
| 25 |
Sparkasse Harburg-Buxtehude
With over 175 years of experience, we provide financial services and support to individuals and businesses Visit our website for more information |
189 |
| 26 |
Hamburgische Investitions- und Förderbank (IFB Hamburg)ifbhh.de
A public development bank in Hamburg supporting housing, economic development, environmental protection, and innovation projects with loans, grants, and advice |
155 |
| 27 |
PFLEGEN & WOHNEN HAMBURG GmbHpflegenundwohnen.de
A leading provider of residential care in Hamburg, offering 2,400 places and employing 2,000 staff across 13 locations, focusing on meeting diverse care needs |
95 |
| 28 |
German Climate Computing Center | DKRZ |dkrz.de
A national service facility providing high performance computers and data storage for simulation-based climate science research in Germany |
95 |
| 29 |
GKL Gemeinsame Klassenlotterie der Ländergkl.org
Germany's first lottery provider established by merging NKL and SKL to form GKL, supported by all 16 federal German states |
53 |
| 30 |
LOTTO Hamburg GmbHlotto-hh.de
This company operates state lotteries in Hamburg, offering games like LOTTO, Eurojackpot, BINGO, and more for residents to try their luck |
48 |
| 31 |
Museum für Kunst und Gewerbe Hamburgmkg-hamburg.de
A museum with 500,000 objects spanning 4,000 years of human history, showcasing art and design from Europe, Islam, and the Far East |
47 |
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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 Nov 2, 2026.
More company lists in Hamburg
- The largest companies in Hamburg 949
- Transportation, Logistics, Supply Chain and Storage companies in Hamburg 118
- SaaS companies in Hamburg 99
- Software Development companies in Hamburg 92
- Financial services firms in Hamburg 90
- Family-owned companies in Hamburg 82
- Critical infrastructure operators in Hamburg 74
- Logistics companies in Hamburg 73
- Financial Services companies in Hamburg 58
- Manufacturers in Hamburg 58
- Retail chains in Hamburg 53
- Distributors and wholesalers in Hamburg 39
- IT services companies in Hamburg 37
- Advertising Services companies in Hamburg 35
- Consulting firms in Hamburg 34
- Hardware manufacturers in Hamburg 33
- Marketing and communications agencies in Hamburg 29
- Maritime Transportation companies in Hamburg 29
- Energy companies in Hamburg 28
- Real Estate companies in Hamburg 28
- Publicly traded companies in Hamburg 27
- E-commerce companies in Hamburg 26
- Business Consulting and Services companies in Hamburg 25
The same list elsewhere in Germany
- Public sector organisations in Germany 811
- Public sector organisations in North Rhine-Westphalia 160
- Public sector organisations in Baden-Württemberg 122
- Public sector organisations in Bavaria 120
- Public sector organisations in Hesse 65
- Public sector organisations in Lower Saxony 65
- Public sector organisations in Rhineland-Palatinate 36
- Public sector organisations in Saxony 33
- Public sector organisations in Berlin 60
- Public sector organisations in Munich 35
- Public sector organisations in Frankfurt 27