# Top 30 professional services firms in Hamburg
Tamtam tracks 58 professional services firms headquartered in Hamburg. This list ranks the 30 largest by number of employees on LinkedIn, led by Lufthansa Technik, tecis Finanzdienstleistungen AG and BDO Germany. Their median headcount is 518. Half of them were founded in 1991 or later.
This selection of professional services firms in Hamburg includes a mix of established large companies and some more recent firms. The sector is notably diverse, encompassing aviation services, financial consulting, and advertising. For instance, Lufthansa Technik provides maintenance for civil aircraft, while tecis Finanzdienstleistungen AG specializes in investments and insurances. BDO Germany and Forvis Mazars in Germany offer audit, tax, and advisory services. Jung von Matt is an advertising agency, and Funk operates as an insurance broker.
A clear pattern among these companies is their deep roots in professional services, with many providing specialized expertise across various industries. A significant number of firms, such as BDO Germany (founded 1920) and Funk (founded 1879), have a long history, indicating a mature and stable professional services landscape in Hamburg. However, newer entrants like x1F (founded 2021) and adesso business consulting AG (founded 2007) also contribute to the city's professional services sector.
π©πͺ Hamburg Β· 30 companies Β· Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Lufthansa Technik](https://www.tamtam.ai/c/lufthansa-technik) (lufthansa-technik.com)
Leading global provider of maintenance, repair, overhaul, and modification services for civil aircraft, ensuring technical reliability and availability of customer fleets. | Aviation and Aerospace Component Manufacturing | π©πͺ Hamburg | 7,793 | |
| 2 | [tecis Finanzdienstleistungen AG](https://www.tamtam.ai/c/tecis-finanzdienstleistungen-ag) (tecis.de)
Financial services company specializing in investments, insurances, corporate pension, private health insurances, financial optimization, asset building, depot analysis, wealth management, financial planning, and consulting | Financial Services | π©πͺ Hamburg | 2,503 | |
| 3 | [BDO Germany](https://www.tamtam.ai/c/bdo-germany) (bdo.de)
A leading provider of audit, tax, and advisory services with industry-centered expertise, serving medium-sized, family-owned, and listed businesses globally | Accounting | π©πͺ Hamburg | 2,025 | 1920 |
| 4 | [Forvis Mazars in Germany](https://www.tamtam.ai/c/forvis-mazars-in-germany) (forvismazars.com)
international audit, accountancy, advisory, tax, and legal services with a large professional team across multiple German locations | Accounting | π©πͺ Hamburg | 1,932 | 1945 |
| 5 | [GFA Consulting Group GmbH](https://www.tamtam.ai/c/gfa-consulting-group-gmbh) (gfa-group.de)
A European consulting firm specializes in international development projects in over 130 countries, supporting the achievement of Sustainable Development Goals | International Trade and Development | π©πͺ Hamburg | 1,488 | 1982 |
| 6 | [Jung von Matt](https://www.tamtam.ai/c/jung-von-matt) (jvm.com)
A highly awarded advertising agency group offering creative and efficient marketing communication services to clients worldwide across various channels and disciplines | Advertising Services | π©πͺ Hamburg | 1,097 | 1991 |
| 7 | [Funk](https://www.tamtam.ai/c/funk) (funk-gruppe.de)
Leading insurance broker and risk consultant with over 140 years of experience, offering innovative solutions and individualized concepts for clients worldwide | Insurance | π©πͺ Hamburg | 1,077 | 1879 |
| 8 | [adesso business consulting AG](https://www.tamtam.ai/c/adesso-business-consulting-ag) (adesso-bc.com)
A consulting and IT service company formed in 2021, specializing in SAP solutions, process consulting, and empowering employees to innovate and succeed together | Business Consulting and Services | π©πͺ Hamburg | 951 | 2007 |
| 9 | [GL Group](https://www.tamtam.ai/c/gl-group) (dnv.com)
The company provides maritime services and solutions, as well as a wide range of services across various industries | Maritime Transportation | π©πͺ Hamburg | 891 | 1867 |
| 10 | [Aon Deutschland](https://www.tamtam.ai/c/aon-deutschland) (aon.com)
A leading global consultancy offering diverse solutions in risk, retirement, talent, and health, with a focus on helping clients achieve their goals | Financial Services | π©πͺ Hamburg | 852 | |
| 11 | [x1F](https://www.tamtam.ai/c/x1f) (x1f.one)
A technology and transformation consulting group offering full-service solutions for various sectors, specializing in business processes, data science, AI, security, and IT infrastructure | IT Services and IT Consulting | π©πͺ Hamburg | 759 | 2021 |
| 12 | [TimePartner Personalmanagement GmbH](https://www.tamtam.ai/c/timepartner-personalmanagement-gmbh) (timepartner.com)
We provide tailored solutions for staffing needs with 10,500 employees and 150 locations in Germany, connecting businesses and candidates seamlessly | Human Resources Services | π©πͺ Hamburg | 757 | |
| 13 | [PPI AG](https://www.tamtam.ai/c/ppi-ag) (ppi-group.eu)
Consulting and software development for banks, insurers, and financial service providers with expertise in payment systems and technology. | Business Consulting and Services | π©πͺ Hamburg | 620 | 1984 |
| 14 | [ALTEN Technology](https://www.tamtam.ai/c/alten-technology) (alten-engineering.de)
A global engineering partner offering innovative solutions to clients in aeronautics, automotive, energy, and more, with a focus on technical excellence and employee development | Aviation and Aerospace Component Manufacturing | π©πͺ Hamburg | 597 | 1988 |
| 15 | [TERRITORY](https://www.tamtam.ai/c/territory) (territory.de)
Communication company combining agency business and digital products, offering storytelling, media, branding, tech, and employer branding solutions across Europe. | Advertising Services | π©πͺ Hamburg | 518 | 1988 |
| 16 | [GvW Graf von Westphalen](https://www.tamtam.ai/c/gvw-graf-von-westphalen) (gvw.com)
A large independent law firm with over 200 legal professionals providing services in multiple cities in Germany and internationally | Law Practice | π©πͺ Hamburg | 447 | |
| 17 | [gmp von Gerkan, Marg and Partners Architects](https://www.tamtam.ai/c/gmp-von-gerkan-marg-and-partners-architects) (gmp.de)
A global architectural practice with over 50 years of experience, specializing in projects of all scales across various cultural contexts worldwide | Architecture and Planning | π©πͺ Hamburg | 434 | 1965 |
| 18 | [Tagueri AG](https://www.tamtam.ai/c/tagueri-ag) (scalian.de)
A system provider and consultancy specializing in developing and applying innovative products, software, and processes across various industries | Business Consulting and Services | π©πͺ Hamburg | 421 | 1994 |
| 19 | [Fincon Reply GmbH](https://www.tamtam.ai/c/fincon-reply-gmbh) (finconreply.de)
Experienced experts in digitalization for the financial services sector, providing IT and consultancy services to implement industry-specific processes and systems | Information Services | π©πͺ Hamburg | 393 | 2003 |
| 20 | [pluss Personalmanagement GmbH](https://www.tamtam.ai/c/pluss-personalmanagement-gmbh) (pluss.de)
The company connects individuals and businesses in various sectors, offering diverse job opportunities, competitive compensation, and personalized career development | Staffing and Recruiting | π©πͺ Hamburg | 391 | 1984 |
| 21 | [INTREAL](https://www.tamtam.ai/c/intreal) (intreal.com)
Leading German "Service KVG" specializing in regulated real estate fund administration and AIFM services for third parties, with international presence | Real Estate | π©πͺ Hamburg | 379 | 2009 |
| 22 | [MΓHRLE HAPP LUTHER](https://www.tamtam.ai/c/mohrle-happ-luther) (mhl.de)
A multidisciplinary law firm offering highly qualified advice and personal support to a variety of clients, with close ties to Crowe Global | Legal Services | π©πͺ Hamburg | 307 | 1928 |
| 23 | [HIH Real Estate / HIH-Gruppe](https://www.tamtam.ai/c/hih-real-estate-hih-gruppe) (hih.de)
Provider of all-in-one real estate investment management in Germany with services covering project development, investments, asset and property management, and fund administration | Real Estate | π©πͺ Hamburg | 295 | |
| 24 | [freiheit.com technologies](https://www.tamtam.ai/c/freiheit-com-technologies) (freiheit.com)
An innovative engineering company focused on developing large-scale software systems, tackling new challenges, and fostering a culture of continuous learning and growth | Software Development | π©πͺ Hamburg | 267 | 1999 |
| 25 | [Cpro Industry Projects & Solutions GmbH](https://www.tamtam.ai/c/cpro-industry-projects-and-solutions-gmbh) (cpro-ips.com)
A leading SAP Gold Partner specializing in SAP solutions integration, with locations across Germany, serving over 240 customers in various industries | IT Services and IT Consulting | π©πͺ Hamburg | 267 | 2004 |
| 26 | [HANSAINVEST Hanseatische Investment-GmbH](https://www.tamtam.ai/c/hansainvest-hanseatische-investment-gmbh) (hansainvest.de)
Service-oriented investment management company specializing in administration of liquid and illiquid assets across mutual and special funds. | Financial Services | π©πͺ Hamburg | 261 | 1969 |
| 27 | [Carlsquare](https://www.tamtam.ai/c/carlsquare) (carlsquare.com)
An investment bank supporting companies and shareholders in implementing strategic goals through M&A, IPOs, and raising capital, with global reach and a partner network | Investment Banking | π©πͺ Hamburg | 216 | 2000 |
| 28 | [HAPEKO Deutschland](https://www.tamtam.ai/c/hapeko-deutschland) (hapeko.de)
Creating sustainable connections between companies and professionals in Germany and Austria through personal, direct, and targeted recruiting services Welcome to Hanseatic Personalkontor β HAPEKO | Staffing and Recruiting | π©πͺ Hamburg | 213 | 2003 |
| 29 | [Grabarz & Partner](https://www.tamtam.ai/c/grabarz-and-partner) (grabarzundpartner.de)
Independent advertising agency specializing in creative campaigns for major clients like Volkswagen, IKEA, Burger King, and Melitta. | Advertising Services | π©πͺ Hamburg | 213 | 1993 |
| 30 | [DevelopX - A TruVenturo Company](https://www.tamtam.ai/c/developx-a-truventuro-company) (developx.com)
A digitalization and consulting unit of a successful company builder, providing expertise in business building, digital strategy, software services, and portfolio consulting in Europe | Business Consulting and Services | π©πͺ Hamburg | 212 | 2018 |
## 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 Hamburg
- [The largest companies in Hamburg](https://www.tamtam.ai/l/largest-companies-hamburg) (949)
- [Multinational companies in Hamburg](https://www.tamtam.ai/l/multinational-companies-hamburg) (320)
- [Transportation, Logistics, Supply Chain and Storage companies in Hamburg](https://www.tamtam.ai/l/transportation-logistics-supply-chain-and-storage-companies-hamburg) (118)
- [SaaS companies in Hamburg](https://www.tamtam.ai/l/saas-companies-hamburg) (99)
- [Software Development companies in Hamburg](https://www.tamtam.ai/l/software-development-companies-hamburg) (92)
- [Financial services firms in Hamburg](https://www.tamtam.ai/l/financial-services-firms-hamburg) (90)
- [Companies with in-house R&D in Hamburg](https://www.tamtam.ai/l/r-and-d-companies-hamburg) (84)
- [Family-owned companies in Hamburg](https://www.tamtam.ai/l/family-owned-companies-hamburg) (82)
- [Critical infrastructure operators in Hamburg](https://www.tamtam.ai/l/critical-infrastructure-operators-hamburg) (74)
- [Logistics companies in Hamburg](https://www.tamtam.ai/l/logistics-companies-hamburg) (73)
- [Companies with a mobile app in Hamburg](https://www.tamtam.ai/l/companies-with-mobile-app-hamburg) (59)
- [Financial Services companies in Hamburg](https://www.tamtam.ai/l/financial-services-companies-hamburg) (58)
- [Manufacturers in Hamburg](https://www.tamtam.ai/l/manufacturers-hamburg) (58)
- [Retail chains in Hamburg](https://www.tamtam.ai/l/retail-chains-hamburg) (53)
- [Corporate groups and holding companies in Hamburg](https://www.tamtam.ai/l/holding-companies-hamburg) (53)
- [Distributors and wholesalers in Hamburg](https://www.tamtam.ai/l/distributors-and-wholesalers-hamburg) (39)
- [IT services companies in Hamburg](https://www.tamtam.ai/l/it-services-companies-hamburg) (37)
- [Advertising Services companies in Hamburg](https://www.tamtam.ai/l/advertising-services-companies-hamburg) (35)
- [Consulting firms in Hamburg](https://www.tamtam.ai/l/consulting-firms-hamburg) (34)
- [Hardware manufacturers in Hamburg](https://www.tamtam.ai/l/hardware-companies-hamburg) (33)
- [Public sector organisations in Hamburg](https://www.tamtam.ai/l/public-sector-organisations-hamburg) (31)
- [Marketing and communications agencies in Hamburg](https://www.tamtam.ai/l/marketing-agencies-hamburg) (29)
- [Maritime Transportation companies in Hamburg](https://www.tamtam.ai/l/maritime-transportation-companies-hamburg) (29)
- [Energy companies in Hamburg](https://www.tamtam.ai/l/energy-companies-hamburg) (28)
## The same list elsewhere in Germany
- [Professional services firms in Germany](https://www.tamtam.ai/l/professional-services-firms-germany) (690)
- [Professional services firms in Bavaria](https://www.tamtam.ai/l/professional-services-firms-bavaria) (154)
- [Professional services firms in North Rhine-Westphalia](https://www.tamtam.ai/l/professional-services-firms-north-rhine-westphalia) (147)
- [Professional services firms in Baden-WΓΌrttemberg](https://www.tamtam.ai/l/professional-services-firms-baden-wurttemberg) (90)
- [Professional services firms in Hesse](https://www.tamtam.ai/l/professional-services-firms-hesse) (88)
- [Professional services firms in Munich](https://www.tamtam.ai/l/professional-services-firms-munich) (91)
- [Professional services firms in Berlin](https://www.tamtam.ai/l/professional-services-firms-berlin) (78)
- [Professional services firms in Frankfurt](https://www.tamtam.ai/l/professional-services-firms-frankfurt) (36)
- [Professional services firms in Cologne](https://www.tamtam.ai/l/professional-services-firms-cologne) (30)
- [Professional services firms in DΓΌsseldorf](https://www.tamtam.ai/l/professional-services-firms-dusseldorf) (28)
- [Professional services firms in Stuttgart](https://www.tamtam.ai/l/professional-services-firms-stuttgart) (25)
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Source: https://www.tamtam.ai/l/professional-services-firms-hamburg