# Top 100 AI consultancies and service providers in Europe

Tamtam tracks 1,725 AI consultancies and service providers headquartered in Europe. This list ranks the 100 largest by number of employees on LinkedIn, led by Capgemini, Minsait and Reply. Their median headcount is 1,796. Half of them were founded in 2000 or later. The most common headquarters are London (14), Paris (9) and Madrid (5).

This list compiles AI consultancies and service providers across Europe, focusing on the largest firms by employee count. These companies primarily operate in IT services, IT consulting, and business consulting. They range from established global enterprises to mid-sized firms.

Key players include Capgemini, which offers end-to-end services in AI and technology, and Minsait, a Spanish technological consultant specializing in cloud and security. Reply delivers innovative solutions using AI and big data, while RWS Group combines technology and human expertise for global brand communication. GFT Technologies focuses on advanced data and AI transformation solutions, and Engineering Group is a digital transformation company with a strong R&D focus.

🌍 Europe · 100 companies · Updated Nov 12, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Capgemini](https://www.tamtam.ai/c/capgemini-paris) (capgemini.com)<br>Imagine future organizations, making it real with AI, technology, and people, delivering end-to-end services and solutions across strategy, technology, design, engineering and business operations | IT Services and IT Consulting | 🇫🇷 Paris | 342,989 |  |
| 2 | [Minsait](https://www.tamtam.ai/c/minsait) (minsait.com)<br>A leading Spanish technological consultant operating globally, leveraging cloud, security, payments, and innovative technology to drive business and societal impact #MoreMinsait | IT Services and IT Consulting | 🇪🇸 Alcobendas | 45,000 | 2016 |
| 3 | [Reply](https://www.tamtam.ai/c/reply) (reply.com)<br>Specializing in innovative solutions using AI, big data, and digital media, this company delivers consulting and digital services across various sectors globally | IT Services and IT Consulting | 🇮🇹 Turin | 17,188 | 1996 |
| 4 | [Capgemini Invent](https://www.tamtam.ai/c/capgemini-invent) (capgemini.com)<br>Digital innovation, consulting, and transformation services combining strategy, technology, data science, and creative design to help businesses envision and build the future | Business Consulting and Services | 🇫🇷 Paris | 17,000 |  |
| 5 | [RWS Group](https://www.tamtam.ai/c/rws-group) (rws.com)<br>Content solutions company combining technology and human expertise to enhance ideas, data, and content for global brand communication. | Business Content | 🇬🇧 Maidenhead | 13,957 | 1958 |
| 6 | [GFT Technologies](https://www.tamtam.ai/c/gft-technologies) (gft.com)<br>Design advanced data, AI transformation solutions, modernize tech architectures, and develop next-gen core systems for industry leaders globally. | IT Services and IT Consulting | 🇩🇪 Stuttgart | 13,400 | 1987 |
| 7 | [Engineering Group](https://www.tamtam.ai/c/engineering-group) (eng.it)<br>Leading digital transformation company with global presence, specializing in innovation, proprietary solutions, R&D, and diverse market expertise. | IT Services and IT Consulting | 🇮🇹 Rome | 11,815 | 1980 |
| 8 | [Endava](https://www.tamtam.ai/c/endava) (endava.com)<br>The company leverages technology and expertise to drive innovation and transform businesses with customized digital solutions across industries | IT Services and IT Consulting | 🇬🇧 London | 9,559 | 2020 |
| 9 | [BTS](https://www.tamtam.ai/c/bts) (bts.com)<br>Helps organizations move strategy to execution, empowering teams, aligning leadership, and scaling breakthroughs through hands-on, practical consulting and immersive business simulations. | Business Consulting and Services | 🇸🇪 Stockholm | 7,996 | 1986 |
| 10 | [Accenture Italia](https://www.tamtam.ai/c/accenture-italia) (accenture.com)<br>Global professional services firm specializing in digital, cloud, security, strategy, consulting, technology, and operations across multiple industries worldwide. | IT Services and IT Consulting | 🇮🇹 Milan | 7,209 |  |
| 11 | [Mastek](https://www.tamtam.ai/c/mastek) (mastek.com)<br>Enterprise digital and cloud transformation partner delivering solutions in digital experience, cloud, data, automation, AI, and managed services globally. | IT Services and IT Consulting | 🇬🇧 Reading | 6,396 |  |
| 12 | [adesso SE](https://www.tamtam.ai/c/adesso-se) (adesso.de)<br>Innovative IT service provider optimizing core business processes with tailored solutions, combining technological expertise with deep industry understanding #GrowTogether #GreatPlacetoWork | IT Services and IT Consulting | 🇩🇪 Dortmund | 6,389 | 1997 |
| 13 | [Accenture España](https://www.tamtam.ai/c/accenture-espana) (accenture.com)<br>A global professional services company helping businesses and governments with digital transformation, cloud technology, data analytics, and industry expertise to drive tangible outcomes | Business Consulting and Services | 🇪🇸 Madrid | 6,208 |  |
| 14 | [Qualitest](https://www.tamtam.ai/c/qualitest) (quality-ai.com)<br>Global leader in AI-powered Quality Engineering services, specializing in superior customer experience, accelerated release velocity, and tailored solutions for various industries | IT Services and IT Consulting | 🇬🇧 London | 6,088 | 1997 |
| 15 | [Astek](https://www.tamtam.ai/c/astek) (astekgroup.fr)<br>Supports clients with high-value service, deep technical expertise across technology, operations, and engineering, focusing on sustainable digital transformation with humans at the core. | IT Services and IT Consulting | 🇫🇷 Boulogne-Billancourt | 6,035 | 1988 |
| 16 | [Evalueserve](https://www.tamtam.ai/c/evalueserve) (evalueserve.com)<br>A global company offering AI solutions powered by subject matter experts to enhance decision-making, with a focus on diversity and inclusion | Business Consulting and Services | 🇨🇭 Zug | 6,033 | 2000 |
| 17 | [Photon](https://www.tamtam.ai/c/photon) (photon.com)<br>A leading digital agency working with Fortune 100 companies, integrating strategy consulting, creative design, and technology to drive digital initiatives at scale | IT Services and IT Consulting | 🇬🇧 London | 5,867 | 2007 |
| 18 | [iO](https://www.tamtam.ai/c/io) (iodigital.com)<br>iO is a blended agency offering expertise in strategy, creativity, marketing, technology, and data to create relevant brand experiences for clients across industries and countries | Technology, Information and Internet | 🇧🇪 Herentals | 5,704 | 2005 |
| 19 | [DEPT®](https://www.tamtam.ai/c/dept) (dept.global)<br>A pioneering technology and marketing services company creating global digital experiences for top brands, committed to sustainability and innovation | Advertising Services | 🇳🇱 Amsterdam | 4,701 |  |
| 20 | [Talan](https://www.tamtam.ai/c/talan) (talan.com)<br>Supports clients in end-to-end Data & AI transformation, combining management consulting with technological expertise for measurable and sustainable impact across vital sectors. | IT Services and IT Consulting | 🇫🇷 Paris | 4,659 |  |
| 21 | [VASS](https://www.tamtam.ai/c/vass) (vasscompany.com)<br>Global technology company specializing in intelligent digital transformation, integrating technology, data, and AI to help organizations achieve sustainable competitive advantages across various sectors. | IT Services and IT Consulting | 🇪🇸 Alcobendas | 4,482 |  |
| 22 | [Babel](https://www.tamtam.ai/c/babel) (babelgroup.com)<br>International team providing specialized technology solutions and consulting to help major clients overcome digital business challenges effectively. | IT Services and IT Consulting | 🇪🇸 Las Rozas de Madrid | 4,333 | 2003 |
| 23 | [Accenture UK & Ireland](https://www.tamtam.ai/c/accenture-uk-and-ireland) (accenture.com)<br>A global professional services company leveraging technology, innovation, and industry expertise to drive digital transformation and deliver tangible outcomes for clients worldwide | IT Services and IT Consulting | 🇬🇧 London | 4,101 |  |
| 24 | [QA Ltd](https://www.tamtam.ai/c/qa-ltd) (qa.com)<br>Providing continuous, collaborative tech training programs focused on AI, cloud, and data skills to drive organizational transformation and growth. | Business Consulting and Services | 🇬🇧 London | 3,994 | 1985 |
| 25 | [Version 1](https://www.tamtam.ai/c/version-1) (version1.com)<br>IT services and solutions provider trusted by global brands, offering independent advice to navigate the evolving IT landscape and drive customer success | IT Services and IT Consulting | 🇮🇪 Dublin | 3,944 | 1996 |
| 26 | [Accenture DACH](https://www.tamtam.ai/c/accenture-dach) (accenture.com)<br>A global consulting firm specializing in strategy, management, digitalization, technology, and business transformation, guiding clients through innovation and operational execution | IT Services and IT Consulting | 🇩🇪 Kronberg im Taunus | 3,934 |  |
| 27 | [OLIVER \| The Brandtech Group](https://www.tamtam.ai/c/oliver-the-brandtech-group) (oliverinside.ai)<br>Design and operate bespoke in-house agencies and ecosystems for brands, driving business growth and innovative marketing solutions globally. | Advertising Services | 🇬🇧 London | 3,870 | 2009 |
| 28 | [JAKALA](https://www.tamtam.ai/c/jakala) (jakala.com)<br>Data and AI company delivering measurable marketing results through data-inspired activations, integrated solutions, and global client collaboration. | Business Consulting and Services | 🇮🇹 Milan | 3,860 |  |
| 29 | [Onepoint](https://www.tamtam.ai/c/onepoint) (groupeonepoint.com)<br>Experts in data, design, and platforms, transforming companies and public administrations through strategic vision and operational implementation with cutting-edge technology and business skills | Business Consulting and Services | 🇫🇷 Paris | 3,835 |  |
| 30 | [Atos IT Solutions and Services A/S](https://www.tamtam.ai/c/atos-it-solutions-and-services-a-s) (atos.net)<br>An international IT service provider offering high-tech transaction, consulting, system integration, and outsourcing services to a global customer base across various industries | IT Services and IT Consulting | 🇩🇰 Taastrup | 3,772 | 2011 |
| 31 | [Abacus](https://www.tamtam.ai/c/abacus) (abacus-global.com)<br>Providing industry-focused, technology-driven business transformation solutions through consulting, systems integration, and outsourcing to help clients lead their industries. | IT Services and IT Consulting | 🇬🇧 London | 3,703 | 1987 |
| 32 | [Andersen Lab](https://www.tamtam.ai/c/andersen-lab) (andersenlab.com)<br>Providing end-to-end IT services, custom software development, API integration, system architecture, and legacy modernization, building tailored, scalable, and secure digital products with AI, ML, Data Science. | IT Services and IT Consulting | 🇵🇱 Warsaw | 3,703 | 2007 |
| 33 | [Sia](https://www.tamtam.ai/c/sia) (sia-partners.com)<br>Next-generation global consulting group specializing in strategy, AI, and management, helping clients with transformation through data science and advanced GenAI solutions. | Business Consulting and Services | 🇫🇷 Paris | 3,646 | 1999 |
| 34 | [hiberus](https://www.tamtam.ai/c/hiberus) (hiberus.com)<br>This company provides technology consulting and digital transformation services, offering specialized solutions across various sectors with a large professional team globally. | IT Services and IT Consulting | 🇪🇸 Zaragoza | 3,616 | 2011 |
| 35 | [Avenga](https://www.tamtam.ai/c/avenga) (avenga.com)<br>Global IT engineering and consulting platform specializing in custom software development with delivery centers worldwide and over 20 years of experience | IT Services and IT Consulting | 🇨🇿 Cologne | 3,455 |  |
| 36 | [SDG Group](https://www.tamtam.ai/c/sdg-group) (sdggroup.com)<br>A global consulting firm specializing in Data & Analytics, empowering organizations to become successful data-driven enterprises through innovation and cutting-edge solutions | Business Consulting and Services | 🇮🇹 Milan | 3,207 |  |
| 37 | [DGS](https://www.tamtam.ai/c/dgs) (dgsspa.com)<br>Specialized group offering security and digital transformation services, with a focus on excellence, innovation, and partnership within the ICT sector in Italy | IT Services and IT Consulting | 🇮🇹 Rome | 3,068 | 1997 |
| 38 | [Ciklum](https://www.tamtam.ai/c/ciklum) (ciklum.com)<br>Global digital solutions company providing tailored solutions for Fortune 500 and fast-growing organizations worldwide, leveraging emerging technologies for various clients | IT Services and IT Consulting | 🇬🇧 London | 2,972 | 2002 |
| 39 | [Magellan](https://www.tamtam.ai/c/magellan) (magellangroup.eu)<br>Magellan Partners helps businesses succeed in their digital transformation by combining business expertise, technology knowledge, and digital creativity to open new digital paths | IT Services and IT Consulting | 🇫🇷 Paris | 2,794 |  |
| 40 | [CANCOM](https://www.tamtam.ai/c/cancom) (cancom.de)<br>Leads companies into the digital future, offering IT solutions, data-based digital solutions, managed and cloud services to reduce IT complexity and develop new business models. | IT Services and IT Consulting | 🇩🇪 Munich | 2,627 | 1992 |
| 41 | [Artefact](https://www.tamtam.ai/c/artefact) (artefact.com)<br>Consulting company focused on data and AI adoption, specializing in data transformation and marketing to drive business results across the value chain for global brands. | Business Consulting and Services | 🇫🇷 Paris | 2,572 | 2014 |
| 42 | [N-iX](https://www.tamtam.ai/c/n-ix) (n-ix.com)<br>provides software engineering services and advanced technology solutions including cloud, AI, IoT, and data analytics for global enterprises | IT Services and IT Consulting | 🇲🇹 Valletta | 2,401 | 2002 |
| 43 | [Twoday](https://www.tamtam.ai/c/twoday) (twoday.com)<br>Providing AI-driven software engineering and business applications to help public and private sectors make better decisions and create meaningful change. | IT Services and IT Consulting | 🇫🇷 | 2,347 | 2022 |
| 44 | [Lufthansa Industry Solutions](https://www.tamtam.ai/c/lufthansa-industry-solutions) (lufthansa-industry-solutions.com)<br>Provides IT consulting and system integration services supporting digital transformation for diverse companies across multiple industries and countries. | IT Services and IT Consulting | 🇩🇪 Norderstedt | 2,268 | 1995 |
| 45 | [Nortal](https://www.tamtam.ai/c/nortal) (nortal.com)<br>A leading digital transformation company with expertise in strategic, data-driven technology, delivering high-impact projects across Europe, the Nordics, the GCC region, and the Americas | IT Services and IT Consulting | 🇪🇪 Tallinn | 2,206 |  |
| 46 | [ELCA Group](https://www.tamtam.ai/c/elca-group) (elca.ch)<br>Leading Swiss provider of IT services and solutions, specializing in cybersecurity, data & AI, cloud, software development, and digital experience across industries | IT Services and IT Consulting | 🇨🇭 Pully | 2,026 | 1968 |
| 47 | [Keyrus](https://www.tamtam.ai/c/keyrus) (keyrus.com)<br>Architects reliable intelligence foundations, human-in-command governance, and performance steering to operationalize intelligence for adaptive, resilient, continuously improving organizations. | IT Services and IT Consulting | 🇫🇷 Levallois-Perret | 2,020 | 1996 |
| 48 | [ELEKS](https://www.tamtam.ai/c/eleks) (eleks.com)<br>Trusted partner for software engineering services delivering high tech innovations to Fortune 500 companies and technology challengers with transparency and quality | IT Services and IT Consulting | 🇪🇪 Tallinn | 1,952 | 1991 |
| 49 | [valantic](https://www.tamtam.ai/c/valantic) (valantic.com)<br>Provides digital transformation consulting, software implementation, and corporate performance management services through data, artificial intelligence, and end-to-end process optimization for international clients. | Business Consulting and Services | 🇩🇪 | 1,807 |  |
| 50 | [Entelgy](https://www.tamtam.ai/c/entelgy) (entelgy.com)<br>A global consultancy that accelerates business transformation through innovative technological solutions, helping clients adapt and thrive in a constantly changing world | IT Services and IT Consulting | 🇪🇸 Madrid | 1,796 |  |
| 51 | [Solita](https://www.tamtam.ai/c/solita) (solita.fi)<br>Combining technology, data, and human insight to deliver high-quality solutions in consulting, AI, software, analytics, cloud, and integration services. | IT Services and IT Consulting | 🇫🇮 Tampere | 1,763 | 1996 |
| 52 | [mc2i](https://www.tamtam.ai/c/mc2i) (mc2i.fr)<br>Independent consultancy in Information System, supporting business and IT departments with methodological expertise for project phases, cost control, innovation, and market adaptation. | IT Services and IT Consulting | 🇫🇷 Paris | 1,700 | 1989 |
| 53 | [All for One](https://www.tamtam.ai/c/all-for-one) (all-for-one.com)<br>An innovative IT services company with over 2,800 experts, focusing on digital transformation for 3,000+ customers in the DACH region | IT Services and IT Consulting | 🇩🇪 Filderstadt-Bernhausen | 1,671 |  |
| 54 | [Business & Decision](https://www.tamtam.ai/c/business-and-decision) (businessdecision.com)<br>Specializes in collecting, analyzing, exploiting, and valorizing data. Designs and deploys innovative solutions for business transformation through cutting-edge technologies like AI. | IT Services and IT Consulting | 🇫🇷 Paris La Défense | 1,666 | 1992 |
| 55 | [CBTW](https://www.tamtam.ai/c/cbtw) (cbtw.tech)<br>Global tech solutions company focusing on collaboration, strategy, technology, and design to create purposeful products and invest in education initiatives globally | IT Services and IT Consulting | 🇧🇪 Brussels | 1,646 |  |
| 56 | [Valcon](https://www.tamtam.ai/c/valcon) (valcon.com)<br>Valcon is a full-service provider specializing in consultancy, technology, data, and advanced analytics to drive end-to-end transformations and create sustainable value | Business Consulting and Services | 🇳🇱 Utrecht | 1,608 | 2000 |
| 57 | [clickworker](https://www.tamtam.ai/c/clickworker) (clickworker.com)<br>Leading provider of paid crowdsourcing services with 36M+ users worldwide, offering solutions like training data, surveys, text creation, classifications, and more in multiple languages | Software Development | 🇩🇪 Essen | 1,593 | 2005 |
| 58 | [GRUPO V3](https://www.tamtam.ai/c/grupo-v3) (v3data.com.br)<br>V3 Capital specializes in Transformational Management, improving business execution through impactful actions and the V3 Capital Platform, transforming individuals and optimizing potential | Professional Services | 🇪🇸 Vitória | 1,500 | 2020 |
| 59 | [HeadMind Partners](https://www.tamtam.ai/c/headmind-partners) (headmind.com)<br>Advises major companies on cybersecurity, digital projects, and Artificial Intelligence, with expertise in digital risks. | Business Consulting and Services | 🇫🇷 Paris | 1,500 | 2000 |
| 60 | [Equal Experts](https://www.tamtam.ai/c/equal-experts) (equalexperts.com)<br>A global team of experienced consultants who help create leading digital products and services, focusing on data-driven decisions, user-centric design, and sustainable scaling | IT Services and IT Consulting | 🇬🇧 London | 1,491 | 2007 |
| 61 | [AIS](https://www.tamtam.ai/c/ais-barcelona) (ais-int.com)<br>An international technology and data company specializing in generating value through Artificial Intelligence, Business Intelligence, and Technology for decision-making support | IT Services and IT Consulting | 🇪🇸 Barcelona | 1,461 | 1987 |
| 62 | [intive](https://www.tamtam.ai/c/intive) (intive.com)<br>Global technology company specializing in user-centric design and software engineering to create impactful digital products for leading industry brands worldwide | IT Services and IT Consulting | 🇩🇪 Regensburg | 1,426 | 1999 |
| 63 | [Digia Plc](https://www.tamtam.ai/c/digia-plc) (digia.com)<br>A software and service company focusing on leveraging technology and human capabilities to drive intelligent business, society, and a sustainable future | IT Services and IT Consulting | 🇫🇮 Helsinki | 1,392 |  |
| 64 | [Alkemy Group](https://www.tamtam.ai/c/alkemy-group) (alkemy.com)<br>Support digital transformation for businesses through consulting, data, AI, marketing, creativity, and technology from strategy to implementation. | Business Consulting and Services | 🇮🇹 Milan | 1,390 | 2012 |
| 65 | [K2 Partnering Solutions](https://www.tamtam.ai/c/k2-partnering-solutions) (k2partnering.com)<br>Providing consulting, recruitment, training, and platform solutions to support companies in enterprise applications, AI, and cloud technology projects. | IT Services and IT Consulting | 🇬🇧 London | 1,383 | 1997 |
| 66 | [Billennium](https://www.tamtam.ai/c/billennium) (billennium.com)<br>Global technology consulting and outsourcing company offering IT solutions, staff augmentation, managed services, and technology solutions with a focus on AI, cloud, and software development | IT Services and IT Consulting | 🇵🇱 Warsaw | 1,381 | 2003 |
| 67 | [Eraneos](https://www.tamtam.ai/c/eraneos) (eraneos.com)<br>A management & technology consultancy helping organizations navigate and leverage the digital age to stay ahead and seize opportunities | Business Consulting and Services | 🇨🇭 Zurich | 1,378 | 1992 |
| 68 | [Lingaro](https://www.tamtam.ai/c/lingaro) (lingarogroup.com)<br>Empowers global enterprises to achieve measurable outcomes with data and AI, providing end-to-end solutions from strategy to scalable platforms for actionable insights and automation. | IT Services and IT Consulting | 🇵🇱 Warsaw | 1,361 | 2008 |
| 69 | [Godel Technologies Europe](https://www.tamtam.ai/c/godel-technologies-europe) (godeltech.com)<br>A leading technology partner in Europe, Godel offers agile software engineering services to bridge UK tech skills gap for clients | IT Services and IT Consulting | 🇬🇧 Manchester | 1,330 | 2002 |
| 70 | [CGI Business Consulting](https://www.tamtam.ai/c/cgi-business-consulting) (cgi.com)<br>Digital transformation consulting firm that anticipates, designs, and implements customized strategies for various sectors to shape the economy of tomorrow | Business Consulting and Services | 🇫🇷 Paris La Défense | 1,319 |  |
| 71 | [Celfocus](https://www.tamtam.ai/c/celfocus) (celfocus.com)<br>European tech integrator specializing in Analytics and Cognitive solutions for Telecom, Energy, Finance industries Agile delivery, AI-driven transformations, global presence | IT Services and IT Consulting | 🇵🇹 Lisbon | 1,297 | 2000 |
| 72 | [Teknei](https://www.tamtam.ai/c/teknei) (teknei.com)<br>A leading technology services and consulting firm specializing in innovative digital solutions, business automation, cybersecurity, and infrastructure modernization, with a focus on fostering innovation and collaboration among its team | IT Services and IT Consulting | 🇪🇸 Bilbao | 1,242 | 2010 |
| 73 | [Accenture Greece](https://www.tamtam.ai/c/accenture-greece) (accenture.com)<br>Provides global consulting services, leveraging technology to drive innovation, create digital ecosystems, and transform organizations across private and public sectors, enhancing competitiveness. | IT Services and IT Consulting | 🇬🇷 Kifisia | 1,209 | 1992 |
| 74 | [Exxeta](https://www.tamtam.ai/c/exxeta) (exxeta.com)<br>Technology and consulting company specializing in digital transformation, software development, AI, cloud computing, and big data for various industries. | IT Services and IT Consulting | 🇩🇪 Karlsruhe | 1,172 | 2005 |
| 75 | [conet](https://www.tamtam.ai/c/conet) (conet.de)<br>Digitization partner offering consulting, customer experience, data intelligence, managed services, SAP, and software development to industrial, commercial, and public sector clients | IT Services and IT Consulting | 🇩🇪 Bonn | 1,148 | 1987 |
| 76 | [Spindox](https://www.tamtam.ai/c/spindox) (spindox.it)<br>ICT company offering consultancy, system integration, software development, interaction design, and network engineering services to global clients across various industries | IT Services and IT Consulting | 🇮🇹 Milan | 1,147 | 2007 |
| 77 | [Toloka](https://www.tamtam.ai/c/toloka) (toloka.ai)<br>This company empowers businesses to develop high quality AI through a unique methodology combining machine learning technology and human expertise | IT Services and IT Consulting | 🇳🇱 Amsterdam | 1,140 | 2014 |
| 78 | [Merit Data & Technology India](https://www.tamtam.ai/c/merit-data-and-technology-india) (meritdata-tech.com)<br>A company that provides marketing data, product data, customized software, and marketing automation to help B2B brands embrace the challenges of the future | Information Services | 🇬🇧 London | 1,128 | 2004 |
| 79 | [JUNGLE](https://www.tamtam.ai/c/jungle-madrid) (wejungle.com)<br>An ecosystem of creative companies specializing in transforming businesses using creativity across strategy, design, advertising, digital production, and more | Business Consulting and Services | 🇪🇸 Madrid | 1,116 | 2019 |
| 80 | [SFEIR](https://www.tamtam.ai/c/sfeir) (sfeir.com)<br>Provides expert application development across web, mobile, cloud, data, and IoT, guiding clients through digital transformation with innovative products. | IT Services and IT Consulting | 🇫🇷 Neuilly-sur-Seine | 1,083 | 1985 |
| 81 | [Accenture the Netherlands](https://www.tamtam.ai/c/accenture-the-netherlands) (accenture.com)<br>Global professional services company specializing in digital, cloud, and security solutions for clients in 40+ industries worldwide, powered by Advanced Technology and Intelligent Operations | Business Consulting and Services | 🇳🇱 Amsterdam | 1,078 | 2001 |
| 82 | [Faculty](https://www.tamtam.ai/c/faculty) (faculty.ai)<br>The company develops and implements safe AI systems integrating human and artificial intelligence for optimized performance | Technology, Information and Internet | 🇬🇧 London | 1,073 | 2014 |
| 83 | [TELUS International Europe](https://www.tamtam.ai/c/telus-international-europe) (telusinternational.com)<br>Global provider of next-generation digital solutions for enhancing customer experience through digital strategy, transformation, IT solutions, data annotation, and omnichannel CX services for various industries | Outsourcing and Offshoring Consulting | 🇩🇪 Berlin | 1,066 | 2005 |
| 84 | [LKS NEXT](https://www.tamtam.ai/c/lks-next) (lksnext.com)<br>The company provides comprehensive business consulting services with a focus on technology, finance, and legal support, working closely with clients for transformative and successful outcomes | IT Services and IT Consulting | 🇪🇸 Mondragon - Arrasate | 1,062 | 1991 |
| 85 | [Sigma Technology Group](https://www.tamtam.ai/c/sigma-technology-group-goteborg) (sigmatechnology.com)<br>Global technology consulting company with expertise in software development, embedded systems design, digital solutions, and IT infrastructure, serving clients worldwide | IT Services and IT Consulting | 🇸🇪 Gothenburg | 1,039 |  |
| 86 | [Bluetab, an IBM Company](https://www.tamtam.ai/c/bluetab-an-ibm-company) (bluetab.net)<br>Support organizations in EMEA and America with data readiness, scalable data preparation, and GenAI implementation for data-driven culture. | IT Services and IT Consulting | 🇪🇸 Madrid | 1,036 | 2006 |
| 87 | [Accenture Romania](https://www.tamtam.ai/c/accenture-romania) (accenture.com)<br>Provides professional services, leveraging digital, cloud, and security expertise. Offers strategy, consulting, interactive, technology, and operations across over 40 industries, serving global clients. | IT Services and IT Consulting | 🇷🇴 Bucharest | 1,035 | 2000 |
| 88 | [Making Science](https://www.tamtam.ai/c/making-science) (makingscience.com)<br>provides comprehensive digital marketing, big data, UX, software development, and data-driven creativity solutions with a global professional team | Advertising Services | 🇪🇸 Madrid | 991 |  |
| 89 | [SDG Group España](https://www.tamtam.ai/c/sdg-group-espana) (sdggroup.com)<br>Global consulting firm specializing in Data & Analytics, transforming organizations into successful data-driven enterprises through innovative analytics expertise and solutions | Business Consulting and Services | 🇪🇸 Barcelona | 974 | 1992 |
| 90 | [ERNI](https://www.tamtam.ai/c/erni) (linktr.ee)<br>Innovative Swiss software engineering firm boosting businesses with method-based consulting, partnership-oriented technology services, and cost-conscious delivery across multiple locations | IT Services and IT Consulting | 🇨🇭 Lucerne | 954 | 1994 |
| 91 | [TIMETOACT GROUP](https://www.tamtam.ai/c/timetoact-group) (timetoact-group.com)<br>The company specializes in modernizing and integrating IT applications for businesses, while also designing and implementing digital business models for innovative clients | IT Services and IT Consulting | 🇩🇪 Cologne | 952 |  |
| 92 | [CLUSTER REPLY](https://www.tamtam.ai/c/cluster-reply) (reply.com)<br>A consulting firm specializing in Microsoft technologies, providing innovative solutions for digital transformation, business processes, applications, and security across various industries | IT Services and IT Consulting | 🇮🇹 Turin | 947 | 1996 |
| 93 | [Kubrick Group](https://www.tamtam.ai/c/kubrick-group) (kubrickgroup.com)<br>Deliver data and AI solutions reducing costs, enhancing risk resilience, uncovering revenue, and training diverse specialists for technology partnerships. | IT Services and IT Consulting | 🇬🇧 London | 942 | 2016 |
| 94 | [VML MAP](https://www.tamtam.ai/c/vml-map) (vml-map.com)<br>Global team specializing in Marketing Automation, Personalization, Loyalty, and CRM, crafting personalized content to create connections between brands and consumers worldwide | Business Consulting and Services | 🇩🇰 Copenhagen | 929 |  |
| 95 | [7N](https://www.tamtam.ai/c/7n) (7n.com)<br>Providing IT consulting services, supporting clients with sourcing of IT consultants, end-to-end solutions, and professional learning. Enabling digital transformation across the IT project life cycle. | IT Services and IT Consulting | 🇩🇰 Copenhagen | 920 | 1965 |
| 96 | [Trask](https://www.tamtam.ai/c/trask) (thetrask.com)<br>Providing tailored technology and business consulting services including BPM, data science, integration, security, and mobile solutions for diverse industries. | IT Services and IT Consulting | 🇨🇿 Prague | 916 | 1994 |
| 97 | [Elixirr](https://www.tamtam.ai/c/elixirr) (elixirr.com)<br>A global consulting firm with diverse expertise in business challenges, innovation, and change management, driven by entrepreneurial spirit and ownership mindset | Business Consulting and Services | 🇬🇧 London | 902 | 2009 |
| 98 | [Bell Integration](https://www.tamtam.ai/c/bell-integration) (bell-integration.com)<br>Provides technology consultation and managed services enabling organizations to transform IT capabilities, enhancing productivity, and cost efficiency. Specializes in IT services and infrastructure. | IT Services and IT Consulting | 🇬🇧 Portsmouth | 885 | 1996 |
| 99 | [TNG Technology Consulting](https://www.tamtam.ai/c/tng-technology-consulting) (tngtech.com)<br>A value-based IT consulting partnership offering innovative solutions, expert teams, and fast communications to provide strategic and routine IT problem-solving for clients | IT Services and IT Consulting | 🇩🇪 Unterföhring | 854 | 2001 |
| 100 | [Arsenalia](https://www.tamtam.ai/c/arsenalia) (arsenalia.com)<br>This company focuses on creating innovative solutions in communication, design, technology, digital adoption, and people engagement to help individuals, brands, and organizations thrive in a changing world | Business Consulting and Services | 🇮🇹 Venice | 846 |  |

## 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 12, 2026.

## More company lists in Europe

- [The largest companies in Europe](https://www.tamtam.ai/l/largest-companies-in-europe) (213,553)
- [Multinational companies in Europe](https://www.tamtam.ai/l/multinational-companies-in-europe) (42,025)
- [Companies with in-house R&D in Europe](https://www.tamtam.ai/l/r-and-d-companies-in-europe) (20,169)
- [Retail chains in Europe](https://www.tamtam.ai/l/retail-chains-in-europe) (19,259)
- [Manufacturers in Europe](https://www.tamtam.ai/l/manufacturers-in-europe) (18,156)
- [Professional services firms in Europe](https://www.tamtam.ai/l/professional-services-firms-in-europe) (13,698)
- [SaaS companies in Europe](https://www.tamtam.ai/l/saas-companies-in-europe) (13,682)
- [Software Development companies in Europe](https://www.tamtam.ai/l/software-development-companies-in-europe) (12,950)
- [Financial services firms in Europe](https://www.tamtam.ai/l/financial-services-firms-in-europe) (12,943)
- [IT Services and IT Consulting companies in Europe](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-in-europe) (11,705)
- [IT services companies in Europe](https://www.tamtam.ai/l/it-services-companies-in-europe) (11,376)
- [Hardware manufacturers in Europe](https://www.tamtam.ai/l/hardware-companies-in-europe) (10,565)
- [Family-owned companies in Europe](https://www.tamtam.ai/l/family-owned-companies-in-europe) (9,878)
- [Critical infrastructure operators in Europe](https://www.tamtam.ai/l/critical-infrastructure-operators-in-europe) (9,815)
- [Financial Services companies in Europe](https://www.tamtam.ai/l/financial-services-companies-in-europe) (9,480)
- [Consulting firms in Europe](https://www.tamtam.ai/l/consulting-firms-in-europe) (8,900)
- [Public sector organisations in Europe](https://www.tamtam.ai/l/public-sector-organisations-in-europe) (8,568)
- [Education providers in Europe](https://www.tamtam.ai/l/education-companies-in-europe) (7,925)
- [Companies with a mobile app in Europe](https://www.tamtam.ai/l/companies-with-mobile-app-in-europe) (7,898)
- [Distributors and wholesalers in Europe](https://www.tamtam.ai/l/distributors-and-wholesalers-in-europe) (7,573)
- [Retail companies in Europe](https://www.tamtam.ai/l/retail-companies-in-europe) (6,240)
- [Healthcare providers in Europe](https://www.tamtam.ai/l/healthcare-providers-in-europe) (6,132)
- [E-commerce companies in Europe](https://www.tamtam.ai/l/ecommerce-companies-in-europe) (5,864)
- [Hotel and hospitality groups in Europe](https://www.tamtam.ai/l/hospitality-groups-in-europe) (5,741)

## The same list elsewhere

- [AI consultancies and service providers in the world](https://www.tamtam.ai/l/ai-service-providers-in-the-world) (3,241)
- [AI consultancies and service providers in France](https://www.tamtam.ai/l/ai-service-providers-france) (696)
- [AI consultancies and service providers in the United Kingdom](https://www.tamtam.ai/l/ai-service-providers-united-kingdom) (284)
- [AI consultancies and service providers in the Netherlands](https://www.tamtam.ai/l/ai-service-providers-netherlands) (162)
- [AI consultancies and service providers in Germany](https://www.tamtam.ai/l/ai-service-providers-germany) (134)
- [AI consultancies and service providers in Spain](https://www.tamtam.ai/l/ai-service-providers-spain) (77)
- [AI consultancies and service providers in Switzerland](https://www.tamtam.ai/l/ai-service-providers-switzerland) (76)
- [AI consultancies and service providers in Belgium](https://www.tamtam.ai/l/ai-service-providers-belgium) (60)
- [AI consultancies and service providers in Italy](https://www.tamtam.ai/l/ai-service-providers-italy) (60)
- [AI consultancies and service providers in Poland](https://www.tamtam.ai/l/ai-service-providers-poland) (36)

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Source: https://www.tamtam.ai/l/ai-service-providers-in-europe