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The 34 largest consulting firms in Hamburg

Tamtam tracks 34 consulting firms headquartered in Hamburg. This list ranks all of them by number of employees on LinkedIn, led by BDO Germany, Forvis Mazars in Germany and GFA Consulting Group GmbH. Their median headcount is 212. Half of them were founded in 2000 or later.

πŸ‡©πŸ‡ͺ Hamburg34 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
BDO Germanybdo.de

A leading provider of audit, tax, and advisory services with industry-centered expertise, serving medium-sized, family-owned, and listed businesses globally

Accounting πŸ‡©πŸ‡ͺ Hamburg 2,025 1920
2
Forvis Mazars in Germanyforvismazars.com

international audit, accountancy, advisory, tax, and legal services with a large professional team across multiple German locations

Accounting πŸ‡©πŸ‡ͺ Hamburg 1,932 1945
3
GFA Consulting Group GmbHgfa-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 πŸ‡©πŸ‡ͺ Hamburg 1,488 1982
4
Funkfunk-gruppe.de

Leading insurance broker and risk consultant with over 140 years of experience, offering innovative solutions and individualized concepts for clients worldwide

Insurance πŸ‡©πŸ‡ͺ Hamburg 1,077 1879
5
adesso business consulting AGadesso-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 πŸ‡©πŸ‡ͺ Hamburg 951 2007
6
GL Groupdnv.com

The company provides maritime services and solutions, as well as a wide range of services across various industries

Maritime Transportation πŸ‡©πŸ‡ͺ Hamburg 891 1867
7
Aon Deutschlandaon.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 πŸ‡©πŸ‡ͺ Hamburg 852 n/a
8
x1Fx1f.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 πŸ‡©πŸ‡ͺ Hamburg 759 2021
9
PPI AGppi-group.eu

Consulting and software development for banks, insurers, and financial service providers with expertise in payment systems and technology.

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 620 1984
10
ALTEN Technologyalten-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 πŸ‡©πŸ‡ͺ Hamburg 597 1988
11
AKQUINETakquinet.com

Strategic development partner with over 1,000 experts offering IT solutions, software development, industry solutions, IT outsourcing, and cloud services in multiple countries

IT Services and IT Consulting πŸ‡©πŸ‡ͺ Hamburg 513 2002
12
Tagueri AGscalian.de

A system provider and consultancy specializing in developing and applying innovative products, software, and processes across various industries

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 421 1994
13
Fincon Reply GmbHfinconreply.de

Experienced experts in digitalization for the financial services sector, providing IT and consultancy services to implement industry-specific processes and systems

Information Services πŸ‡©πŸ‡ͺ Hamburg 393 2003
14
MΓ–HRLE HAPP LUTHERmhl.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 πŸ‡©πŸ‡ͺ Hamburg 307 1928
15
Cpro Industry Projects & Solutions GmbHcpro-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 πŸ‡©πŸ‡ͺ Hamburg 267 2004
16
TRKKNtrkkn.com

A global analytics, cloud, and marketing technology partner specializing in Google Marketing Platform and Google Cloud solutions for data-driven marketing challenges

Technology, Information and Internet πŸ‡©πŸ‡ͺ Hamburg 246 2008
17
DevelopX - A TruVenturo Companydevelopx.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 πŸ‡©πŸ‡ͺ Hamburg 212 2018
18
WTM Engineers GmbHwtm-engineers.de

An independent engineering firm with offices in Hamburg, Berlin, Munich, and Copenhagen, committed to shaping the future with bold ideas

Architecture and Planning πŸ‡©πŸ‡ͺ Hamburg 205 1936
19
MCF Corporate Financemcfcorpfin.com

Leading M&A and debt advisory firm, structuring and executing transactions for corporations, mid-sized companies, family offices, and private equity investors across four core sectors.

Investment Banking πŸ‡©πŸ‡ͺ Hamburg 133 1990
20
GiB - Gesundheit in Bewegung GmbHgib-gesundheit.de

GiB offers a variety of health-related services to companies, focusing on promoting employee well-being, increasing performance, and improving quality of life

Wellness and Fitness Services πŸ‡©πŸ‡ͺ Hamburg 85 2016
21
passcon GmbHamlrightsource.com

A dynamic consulting firm specializing in financial services, offering innovative solutions and expert advice to ensure regulatory compliance and client satisfaction

IT Services and IT Consulting πŸ‡©πŸ‡ͺ Hamburg 65 n/a
22
Thede Consulting | Part of Projective Groupthede-consulting.com

Specializing in payment solutions and digitalization, this consultancy helps businesses develop and implement innovative digital models and cross-industry platform solutions

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 50 n/a
23
EPEA GmbH – Part of Drees & Sommerepea.com

Innovative solutions for circular industrial products, buildings, and urban districts using the Cradle to Cradle design framework for a sustainable future

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 48 1987
24
SHAPE [DACH]shape.agency

This company specializes in creating digital products for optimal customer experiences, focusing on smart customer journeys and design excellence

Software Development πŸ‡©πŸ‡ͺ Hamburg 46 2012
25
PALTRONpaltron.com

Creating a consultancy focused on AI, BI, Data Science, Big Data, Blockchain, Cloud, IoT, and (Cyber) Security to provide tailored digital solutions

Staffing and Recruiting πŸ‡©πŸ‡ͺ Hamburg 31 2015
26
Controllit AGcontroll-it.de

Experienced consultancy team specializes in Business Continuity Management (BCM) and IT Service Continuity Management (ITSCM) for national and international organizations

Software Development πŸ‡©πŸ‡ͺ Hamburg 24 2000
27
EY-Parthenon Financial Services GmbHey.com

A strategic management advisory firm specializing in the financial services industry, offering actionable strategies in insurance, payments, banking, and more

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 20 2001
28
Njiuko GmbHnjiuko.com

A Hamburg-based company specializing in Ruby on Rails and mobile development, focusing on solid backends, clean code, and successful projects for clients

Software Development πŸ‡©πŸ‡ͺ Hamburg 17 2012
29
Impressed GmbHimpressed.de

A digital media production company in German speaking countries, focusing on standardizing and automating workflows to improve efficiency and competitiveness

Software Development πŸ‡©πŸ‡ͺ Hamburg 17 1992
30
BBA Managementberatung GmbHbba-hamburg.de

With over 30 years of experience, we provide consulting and expertise to companies in the public transportation sector to successfully navigate projects

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 14 1991
31
TI Peopleti-people.com

Helps large organizations improve productivity through experience-centric, data-driven, co-creative approaches, supporting CHROs and CIOs with HR transformation, enablement, and experience management.

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 8 2016
32
Nielsen+Partner Unternehmensberater GmbHnundp.com

Providing expert guidance in software development decision-making, from methodology to technology stack, for optimal user, business, and IT department outcomes

Software Development πŸ‡©πŸ‡ͺ Hamburg 6 1995
33
MOVE4WARDmove-4ward.de

Specializing in consulting and innovation for transport, infrastructure, and logistics, we support clients in managing change and implementing sustainable solutions globally

Business Consulting and Services πŸ‡©πŸ‡ͺ Hamburg 3 2008
34
Heureka Labsheureka-labs.de

A technology studio specializing in AI and data projects, helping clients develop and release production-ready AI software for real business value

IT Services and IT Consulting πŸ‡©πŸ‡ͺ Hamburg 3 2019

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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 same list elsewhere in Germany