# The 25 largest consulting firms in Vienna Tamtam tracks 25 consulting firms headquartered in Vienna. This list ranks all of them by number of employees on LinkedIn, led by KPMG Austria, PwC Austria and TPA Group. Their median headcount is 278. Half of them were founded in 1998 or later. The consulting firms listed in Vienna are primarily large, established companies, many of which are global professional services networks. Companies like KPMG Austria, PwC Austria, and Deloitte Γ–sterreich provide a wide range of services including audit, tax, and advisory. TPA Group specializes in tax advisory and auditing services, while GrECo Group focuses on insurance brokerage. RISE and CNT Management Consulting are prominent in IT R&D and SAP solutions, respectively. A notable pattern among these firms is their founding dates. Many of the larger consulting firms were established before 2000, with several dating back to the mid-20th century, such as PwC Austria (1924), GrECo Group (1925), and KPMG Austria (1946). This indicates a strong presence of long-standing, experienced players in Vienna's consulting sector. πŸ‡¦πŸ‡Ή Vienna Β· 25 companies Β· Updated Nov 11, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [KPMG Austria](https://www.tamtam.ai/c/kpmg-austria) (kpmg.com)
Largest Austrian audit and consulting firm with over 2,050 employees, strong regional presence, and global project capabilities. | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 1,226 | 1946 | | 2 | [PwC Austria](https://www.tamtam.ai/c/pwc-austria) (pwc.at)
A global professional services network with offices in 157 countries, offering assurance, tax, and advisory services to organizations and individuals | Financial Services | πŸ‡¦πŸ‡Ή Vienna | 1,075 | 1924 | | 3 | [TPA Group](https://www.tamtam.ai/c/tpa-group) (tpa-group.com)
A leading tax advisory and auditing services company in Central and South Eastern Europe, with over 1,700 staff across 12 countries | Financial Services | πŸ‡¦πŸ‡Ή Vienna | 861 | 1979 | | 4 | [GrECo Group](https://www.tamtam.ai/c/greco-group) (greco.services)
Family-owned insurance brokerage with a focus on tailored risk and insurance management solutions for various sectors, prioritizing trust, expertise, and client-centric approach | Insurance | πŸ‡¦πŸ‡Ή Vienna | 812 | 1925 | | 5 | [BDO Austria](https://www.tamtam.ai/c/bdo-austria) (bdo.at)
The company offers audit, tax consulting, and corporate finance services. They also provide comprehensive consulting in areas like restructuring, digital services, and people and organization strategies. | Financial Services | πŸ‡¦πŸ‡Ή Vienna | 700 | 1962 | | 6 | [RISE - Research Industrial Systems Engineering](https://www.tamtam.ai/c/rise-research-industrial-systems-engineering) (rise-world.com)
Internationally recognized IT R&D provider offering consultancy, research & development in information technology, specializing in critical environments and large-scale projects | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 516 | | | 7 | [CNT Management Consulting](https://www.tamtam.ai/c/cnt-management-consulting) (cnt-online.com)
CNT Management Consulting is a leading firm specializing in SAP solutions with 450+ consultants across multiple locations, offering expertise in integration, customization, and implementation strategies | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 495 | 1999 | | 8 | [Deloitte Γ–sterreich](https://www.tamtam.ai/c/deloitte-osterreich) (deloitte.at)
Leading professional services firm in Austria offering audit, tax, consulting, financial advisory, risk advisory, legal, and digital services with a focus on positive business development | Management Consulting | πŸ‡¦πŸ‡Ή Vienna | 467 | | | 9 | [T-Systems Austria](https://www.tamtam.ai/c/t-systems-austria) (t-systems.com)
T-Systems offers innovative ICT solutions for multinational corporations and public institutions, shaping the connected future of economy and society | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 424 | | | 10 | [EBCONT](https://www.tamtam.ai/c/ebcont) (ebcont.com)
An Austrian IT services company with over 650 employees providing IT solutions for 130+ customers, including AI and Data Science specialists | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 421 | 2001 | | 11 | [Γ–SB Gruppe](https://www.tamtam.ai/c/osb-gruppe) (oesb-gruppe.com)
The company develops innovative concepts, pilot projects, counseling programs, and services in response to changing societal and economic challenges | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 393 | | | 12 | [EFS Consulting](https://www.tamtam.ai/c/efs-consulting) (efs.consulting)
Automotive consulting firm specializing in product, market, and production strategies, offering innovative solutions and global services with interdisciplinary expertise | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 341 | 1992 | | 13 | [FCP Fritsch, Chiari & Partner ZT GmbH](https://www.tamtam.ai/c/fcp-fritsch-chiari-and-partner-zt-gmbh) (fcp.at)
An engineering office with headquarters in Vienna and international presence, offering services with a team of over 350 staff members | Civil Engineering | πŸ‡¦πŸ‡Ή Vienna | 278 | 1960 | | 14 | [NAVAX](https://www.tamtam.ai/c/navax) (navax.com)
This company optimizes business processes by analyzing, streamlining, and implementing them in IT, offering solutions such as ERP, CRM, collaboration, and more | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 190 | 1995 | | 15 | [Grant Thornton Austria](https://www.tamtam.ai/c/grant-thornton-austria) (grantthornton.at)
A leading company in Austria providing auditing, tax consulting, outsourcing, advisory services, with a focus on forensics, cyber security, and compliance technology | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 187 | | | 16 | [Specific-Group Austria](https://www.tamtam.ai/c/specific-group-austria) (specific-group.com)
An Austrian company offering IT solutions, software development, skill management, and project services across various industries, with over 400 employees in multiple countries | IT Services and IT Consulting | πŸ‡¦πŸ‡Ή Vienna | 125 | 1998 | | 17 | [Snap Consulting GmbH](https://www.tamtam.ai/c/snap-consulting-gmbh) (snapconsult.com)
Specialists in implementing SAP Logistics, Healthcare, and Technology solutions to meet business requirements with expertise and precision | Software Development | πŸ‡¦πŸ‡Ή Vienna | 93 | 2000 | | 18 | [Valida Vorsorge Management](https://www.tamtam.ai/c/valida-vorsorge-management) (valida.at)
The company specializes in pension and retirement management, offering services in pension funds, consulting, and sustainable investments for various industries and organizations | Banking | πŸ‡¦πŸ‡Ή Vienna | 77 | | | 19 | [Bechtle PLM Austria](https://www.tamtam.ai/c/bechtle-plm-austria) (bechtle-plm.at)
A leading provider of comprehensive 3D CAD solutions in Austria, offering consulting, training, and a range of products for product development and manufacturing | Software Development | πŸ‡¦πŸ‡Ή Vienna | 43 | 1996 | | 20 | [Risk Experts Risiko Engineering GmbH](https://www.tamtam.ai/c/risk-experts-risiko-engineering-gmbh) (riskexperts.at)
Specialized consulting firm helping businesses identify and mitigate risks through expert analysis, offering comprehensive solutions and services for effective risk management and damage prevention | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 30 | 2005 | | 21 | [Finnoconsult](https://www.tamtam.ai/c/finnoconsult) (finnoconsult.at)
An innovation consultancy specializing in digital solutions for financial and insurance companies, offering end-to-end implementation, user-centric design, and a digital competence comparison tool | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 17 | 2015 | | 22 | [NOWEVOLVE](https://www.tamtam.ai/c/nowevolve) (nowevolve.org)
We accelerate human and organizational development to shape a better future through new leadership, digitalization, innovation, and ecosystem thinking, fostering mindfulness and growth | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 6 | 2019 | | 23 | [JAHA](https://www.tamtam.ai/c/jaha) (gojaha.com)
Design and innovation consultants specializing in people-centric business design, providing insights, methods, and tools for sustainable growth and strong brand identity | Design Services | πŸ‡¦πŸ‡Ή Vienna | 6 | | | 24 | [Kulturmacher-innen](https://www.tamtam.ai/c/kulturmacher-innen) (kulturmacher-innen.at)
This company specializes in discovering and enhancing organizational cultures to help businesses become better employers, creating environments where people work successfully and happily | Business Consulting and Services | πŸ‡¦πŸ‡Ή Vienna | 3 | 2024 | | 25 | [VORTRAGEND Soul-driven Organisations](https://www.tamtam.ai/c/vortragend-soul-driven-organisations) (vortragend.com)
Empowering organizations to build purpose-driven cultures that motivate employees, delight customers, and achieve sustainable, impactful business growth through strategic actions. | Strategic Management Services | πŸ‡¦πŸ‡Ή Vienna | 1 | 2024 | ## 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 Vienna - [The largest companies in Vienna](https://www.tamtam.ai/l/largest-companies-vienna) (580) - [Multinational companies in Vienna](https://www.tamtam.ai/l/multinational-companies-vienna) (228) - [Critical infrastructure operators in Vienna](https://www.tamtam.ai/l/critical-infrastructure-operators-vienna) (73) - [Financial services firms in Vienna](https://www.tamtam.ai/l/financial-services-firms-vienna) (71) - [IT Services and IT Consulting companies in Vienna](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-vienna) (61) - [Companies with in-house R&D in Vienna](https://www.tamtam.ai/l/r-and-d-companies-vienna) (60) - [SaaS companies in Vienna](https://www.tamtam.ai/l/saas-companies-vienna) (51) - [Software Development companies in Vienna](https://www.tamtam.ai/l/software-development-companies-vienna) (49) - [Companies with a mobile app in Vienna](https://www.tamtam.ai/l/companies-with-mobile-app-vienna) (48) - [Public sector organisations in Vienna](https://www.tamtam.ai/l/public-sector-organisations-vienna) (48) - [Manufacturers in Vienna](https://www.tamtam.ai/l/manufacturers-vienna) (48) - [Financial Services companies in Vienna](https://www.tamtam.ai/l/financial-services-companies-vienna) (47) - [Corporate groups and holding companies in Vienna](https://www.tamtam.ai/l/holding-companies-vienna) (47) - [Retail chains in Vienna](https://www.tamtam.ai/l/retail-chains-vienna) (41) - [IT services companies in Vienna](https://www.tamtam.ai/l/it-services-companies-vienna) (37) - [Education providers in Vienna](https://www.tamtam.ai/l/education-companies-vienna) (36) - [Professional services firms in Vienna](https://www.tamtam.ai/l/professional-services-firms-vienna) (35) - [Publicly traded companies in Vienna](https://www.tamtam.ai/l/publicly-traded-companies-vienna) (29) - [Hardware manufacturers in Vienna](https://www.tamtam.ai/l/hardware-companies-vienna) (27) - [Banking companies in Vienna](https://www.tamtam.ai/l/banking-companies-vienna) (25) ## The same list elsewhere in Austria - [Consulting firms in Austria](https://www.tamtam.ai/l/consulting-firms-austria) (48) --- Source: https://www.tamtam.ai/l/consulting-firms-vienna