This selection of large European companies primarily focuses on advertising services and broader media production. Many are headquartered in London, forming a notable cluster for the sector. Publicis Groupe, with 41,020 employees, helps clients transform their marketing and digital businesses. Bertelsmann SE & Co. KGaA is a global media, services, and education company, while Clinic crafts bold ideas to drive action. EssenceMediacom delivers marketing breakthroughs, and Havas provides integrated, data-driven communication solutions. Keywords Studios offers creative services for the global video games industry.
The companies listed are generally large groups, with several exceeding 10,000 employees. The recurring theme is the provision of strategic and creative services aimed at enhancing brand presence and market engagement for diverse clients. While advertising dominates, there are also significant players in media production, retail, computer games, and design services, indicating a diverse but interconnected landscape of communication-focused enterprises.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Publicis Groupepublicisgroupe.com
Helps clients transform their marketing and digital businesses, providing expertise in communications, media, data, and technology across 100+ countries. |
41,020 | |||
| 2 |
Bertelsmann SE & Co. KGaAwonderl.ink
A global media, services, and education company with diverse subsidiaries, generating billions in revenue and striving for climate neutrality by 2030 |
20,799 | |||
| 3 |
Clinicclinic.co.uk
Independent creative agency crafting bold ideas to drive action and change, with a focus on people's experiences and problem-solving for brands |
19,192 | |||
| 4 |
Smollansmollan.com
Partners with brands and retailers, building solutions that drive growth and create opportunities at the point of purchase. |
13,502 | |||
| 5 |
EssenceMediacomessencemediacom.com
EssenceMediacom is a leading agency focused on delivering marketing breakthroughs for brands through integrated media solutions and continuous learning |
12,000 | |||
| 6 |
Keywords Studioskeywordsstudios.com
A leading creative services provider for the global video games industry, offering end-to-end solutions and support across all aspects of game development |
11,828 | |||
| 7 |
Publicis Mediapublicisgroupe.com
A global media company within Publicis Groupe, employing data-driven solutions and platform-based technologies to deliver client value and drive growth internationally |
11,033 | |||
| 8 | 11,029 | ||||
| 9 |
Social Group - socialgroup.chsocialgroup.ch
Optimizing digital business ecosystems, enhancing LinkedIn presence for sustainable growth, measurable success, and maximum efficiency in sales and recruiting. |
10,803 | |||
| 10 |
Brand Management Agencybrandinglo.com
Empowering businesses to unlock their brand's potential through brand management, asset management, marketing services, and expert guidance for growth and success |
9,080 | |||
| 11 |
HH Globalhhglobal.com
Global leader in tech-enabled creative production and procurement, partnering with clients and suppliers worldwide to deliver impactful creative solutions. |
8,626 | |||
| 12 | 8,179 | ||||
| 13 | 
ZZP/Zelfstandig Ondernemerzelotes.nl
This company specializes in developing branding, websites, SEO, and internet marketing services for self-employed entrepreneurs and freelancers |
7,617 | |||
| 14 |
Wavemakerwavemakerglobal.com
Wavemaker specializes in Provocative Planning to drive growth by combining machine learning and human intelligence for better outcomes and consumer experiences #GrowFearless #PositiveProvocation |
7,200 | |||
| 15 |
Mindsharemindshareworld.com
A media services company that accelerates enduring and sustainable business growth for clients through data and behavioral science, connecting brands with consumers |
6,729 | |||
| 16 |
Bauer Media Groupbauermedia.com
Media business creating content for millions across Europe, covering print and online publishing, audio broadcasting, entertainment, and out-of-home advertising. |
6,562 | |||
| 17 |
MERCADOagenciamercado.com
Creative agency specializing in relationship marketing strategies, digital tools, and metrics to help brand owners achieve key objectives |
6,557 | |||
| 18 |
Toptaltoptal.com
A network connecting top talent in business, design, and technology to help companies scale teams on demand with impressive growth |
6,417 | |||
| 19 |
FinTech Foundryfinancemarketing.org
The company specializes in making finance more approachable through business consultation, brand strategy, and digital marketing services for financial services companies |
5,914 | |||
| 20 |
Saleslandsalesland.net
A global sales specialist recruiting, training, and leading commercial teams across 13 countries, focusing on direct and indirect selling, marketing, and advertising |
5,854 | |||
| 21 |
BOUTIQUEweareboutique.co.uk
A fiercely independent agency focused on delivering ambitious media, digital, PR, and social solutions for clients driven by growth and results |
5,825 | |||
| 22 |
Librelibre.digital
Italian digital creative network crafting apps, web-apps, websites, and portals collaboratively since 2003 |
5,712 | |||
| 23 |
iOiodigital.com
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 |
5,704 | |||
| 24 |
PHDphdmedia.com
Global media agency network combining data, technology, and human expertise to create innovative campaigns and transform brand experiences worldwide. |
5,700 | |||
| 25 |
Shopify Developeronder.co.uk
A cloud-based e-commerce platform offering easy setup for online stores and expert development services to enhance advanced features and customer experiences |
5,461 | |||
| 26 | 5,409 | ||||
| 27 |
Zenithzenithmedia.com
A global agency specializing in media, data, technology, commerce, and content to drive successful business outcomes for clients worldwide |
5,382 | |||
| 28 | 5,067 | ||||
| 29 |
Fashiongrowth.me.uk
Creative collective offering design, patternmaking, sampling, production, styling, photography, and marketing services for fashion brands and designers. |
4,979 | |||
| 30 |
FIRMAwearefirma.com
A full-service Branding and Innovation agency creating successful brands by combining actionable insights, strategic thinking, and creative imagination |
4,889 | |||
| 31 |
Saatchi & Saatchisaatchi.com
Global communications and advertising network creating impactful creative ideas that build strong emotional connections between consumers and brands worldwide. |
4,737 | |||
| 32 |
DEPT®dept.global
A pioneering technology and marketing services company creating global digital experiences for top brands, committed to sustainability and innovation |
4,701 | |||
| 33 |
MediaComessencemediacom.com
An innovative marketing agency within EssenceMediacom GroupM, specializing in creating breakthroughs for brands Follow @EssenceMediacom for more |
4,671 | |||
| 34 |
MECmecglobal.com
It is a global media agency formed by MEC and Maxus, focusing on innovative marketing and advertising solutions for clients. |
4,489 | |||
| 35 | 4,218 | ||||
| 36 |
CPM Internationalcpm-int.com
International agency providing sales outsourcing, customer experience, merchandising, sampling, and data-driven solutions across multiple sectors and markets. |
4,184 | |||
| 37 |
Simulation AImarketizon.com
Aviation Marketing is a specialized agency offering strategic marketing solutions to help aviation companies achieve their business goals through digital marketing strategies |
4,007 | |||
| 38 |
Egmontegmont.com
A leading Nordic media group bringing stories to life through TV, movies, games, books, magazines, while empowering children and youth in need |
3,996 | |||
| 39 |
Alphaalphacrc.com
Multilingual content solutions provider delivering transcreation, software localization, audiovisual services, and AI-based translation across digital, games, fashion, automotive, financial, and medical sectors. |
3,977 | |||
| 40 |
Ströer SE & Co. KGaAstroeer.de
Leading German media house, offering outdoor advertising, digital media, dialog marketing, e-commerce, and Data as a Service solutions, reaching millions of users. |
3,924 | |||
| 41 | 3,918 | ||||
| 42 |
GPmedia7.net
Specializing in medical website design, our agency creates engaging healthcare websites with comprehensive marketing solutions to assist healthcare providers and medical device companies in succeeding |
3,873 | |||
| 43 |
OLIVER | The Brandtech Groupoliverinside.ai
Design and operate bespoke in-house agencies and ecosystems for brands, driving business growth and innovative marketing solutions globally. |
3,870 | |||
| 44 |
JAKALAjakala.com
Data and AI company delivering measurable marketing results through data-inspired activations, integrated solutions, and global client collaboration. |
3,860 | |||
| 45 |
Enterprise AIthehealthmarketing.com
Provides high-quality medical services in the comfort of clients' homes, tailored for recovery, chronic conditions, and daily assistance, offering affordability and convenience |
3,629 | |||
| 46 |
Salon Marketingmarketinglo.com
Salon Marketing specializes in helping hair and beauty businesses generate leads, increase bookings, and boost revenue through strategic branding and marketing services |
3,558 | |||
| 47 |
WPP Productionwppproduction.com
Global content production company integrating creative producers, AI, and virtual production to deliver innovative, fast, and scalable marketing content solutions. |
3,507 | |||
| 48 |
MPCmpcvfx.com
Teams in Paris and Liège create digital visual effects and manage post-production for feature films and TV series. Since April 2025, part of TransPerfect. |
3,389 | |||
| 49 |
MSL (Global)mslgroup.com
Global PR firm with 50 years of experience, 2000+ employees in 100+ cities worldwide Specializes in building brand influence and impactful storytelling |
3,377 | |||
| 50 |
Framestorelnk.bio
A global company combining talent and technology to create pixel-perfect images for blockbuster films, TV, advertising, and immersive experiences |
3,343 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 51 |
Hogarthwppproduction.com
Creative production company combining craft, insight, and technology to bring creative work to life across global locations. |
3,262 | |||
| 52 |
e-Commercemedia7.net
This company specializes in eCommerce services, creating online shopping platforms that are secure, user-friendly, and designed to convert shoppers into customers |
3,208 | |||
| 53 |
JK - Agencyjkgroupe.com
Strategic communication & engagement firm specializing in designing social experiences to create innovative ideas and build impactful projects |
3,135 | |||
| 54 |
Tagtagworldwide.com
Marketing agency specializing in high-impact content creation for leading brands, utilizing technology-driven solutions for efficient, effective, and sustainable campaigns worldwide |
3,090 | |||
| 55 |
Mothermotherfamily.com
A globally respected, independent creative agency with offices worldwide, specializing in creating culturally impactful ideas for a diverse range of clients |
3,065 | |||
| 56 |
Automotive Market
The company offers comprehensive social media marketing services, including strategy, content creation, campaign management, and data analysis to help businesses thrive online |
3,000 | |||
| 57 |
Solocalsolocal.com
Providing digital solutions to businesses in France through Search Local and Digital Marketing services, focusing on local content, personalized marketing, and growth acceleration |
2,935 | |||
| 58 |
Two Circlestwocircles.com
Management of extensive fan data to enhance audience engagement and increase revenue for leading sports and entertainment organizations worldwide. |
2,877 | |||
| 59 | 2,854 | ||||
| 60 |
Italiaonlineitaliaonline.it
Italy's largest internet company offers digital solutions, directories, marketing services, and VAS to a wide range of clients, connecting millions of users with businesses |
2,719 | |||
| 61 |
Advantage Smollanadvantagesmollan.com
Local experts providing consistent service and strong client relationships, leveraging global insights, innovation, and technology for growth. |
2,706 | |||
| 62 |
SwissMarketLabswissmarketlab.com
Innovative Swiss-based agency specializing in tailored digital marketing solutions, web design, and ad management on platforms like Meta, Google Ads, TikTok, and Linkedin |
2,690 | |||
| 63 |
Estado Activoestadoactivo.com
An interactive production company specializing in internet services for online branding, marketing, advertising, and e-commerce Services include SEO/SEM, web development, and mobile apps |
2,680 | |||
| 64 |
Ospedalecomunicazionesanitaria.org
Specialized in healthcare marketing and communication, providing services like website development, social media management, press releases, educational content, and graphic design |
2,608 | |||
| 65 |
MCIwearemci.com
Global agency specializing in engagement and marketing through live & virtual events, strategic communications, and community solutions to drive innovation and growth |
2,585 | |||
| 66 |
Artefactartefact.com
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. |
2,572 | |||
| 67 |
Paragonparagon.world
A leading provider of business services offering technology-driven solutions to improve client performance, increase efficiency, and adapt to market demands |
2,530 | |||
| 68 |
Video AImarketinglo.com
This company specializes in creating engaging, converting, and thought-provoking video marketing campaigns to empower brands, organizations, and agencies globally |
2,509 | |||
| 69 |
EVENT ORGANIZERSeventorganizers.com
Event Organizers LLC specializes in planning, designing, producing, and managing memorable events for cultural, corporate, and technology clients worldwide |
2,505 | |||
| 70 |
Relatedrelated.dk
Nordic PR, communications, and marketing agency specializing in tech and travel industries Represents international clients for strategic, tactical, and operational communications services |
2,500 | |||
| 71 |
K Particulierk-particulier.fr
Specialized Health Communication Agency focused on Medical Education, producing high-value content for healthcare professionals in areas such as professional obligations, doctor-patient communication, and digital platforms |
2,462 | |||
| 72 |
Customer Servicecustomerservice.inc
The company specializes in creating advertising content that captures people's interests, following Howard Gossage's belief from 1950 |
2,381 | |||
| 73 | 2,373 | ||||
| 74 |
Iris Londoniris-worldwide.com
The Participation Agency helps brands grow using creativity, data-driven media, and people to create cultural moments and connect with audiences worldwide |
2,365 | |||
| 75 |
iProspectiprospect.com
Global digital-first media agency specializing in media strategy, digital expertise, and audience knowledge to drive performance-driven brand building for iconic brands worldwide |
2,325 | |||
| 76 |
Social Mediasocial-media.co.uk
Results-driven online marketing agency specializing in SEO, SMM, PPC, and BRM solutions for clients in various industries Focus on monitoring, maximizing effectiveness, and brand image |
2,319 | |||
| 77 |
Performance Marketingmarketinglo.com
A global digital marketing agency specializing in data-driven campaigns to grow ambitious brands through technology, media, content, and performance optimization strategies |
2,318 | |||
| 78 |
Wellness Marketing Agencyremolia.com
This wellness marketing agency helps businesses build trust and credibility, strategize marketing campaigns, and launch ground-breaking products for wellness brands |
2,314 | |||
| 79 |
EY Studio+ey.com
Global team combining design, technology, and commercial insight to enhance customer experience and drive business transformation across industries. |
2,270 | |||
| 80 |
Jellyfishjellyfish.com
A marketing performance company specializing in navigating and connecting platforms to drive growth for global brands through tech, media, creativity, and data expertise |
2,259 | |||
| 81 | 2,259 | ||||
| 82 |
Photographymedia7.net
This company specializes in professional photography services, including product, site, property, event, wedding, modelling, and lifestyle photography with expert editing and digital enhancement |
2,205 | |||
| 83 |
Self-employmentlinkedin.com
Helps startups and small businesses with branding, e-commerce websites, and website development, following a process of learning, planning, designing, building, and launching. |
2,200 | |||
| 84 |
Pénélope Groupehospitality-penelope.fr
Provides corporate visitor reception, telephony, commercial animation, marketing studies, event management, temporary work, and administrative services for businesses. |
2,127 | |||
| 85 |
Marketizonmarketizon.com
Innovative multi-channel marketing technologies leader dedicated to creating effective campaigns, transforming users into followers, and achieving business goals through digital marketing strategies |
2,123 | |||
| 86 |
Self empoyeduk.linkedin.com
A company that operates on a self-employed basis, providing services or products independently without being affiliated with any specific organization |
2,108 | |||
| 87 |
Bright Networkemployers.brightnetwork.co.uk
Connects top companies with bright graduates using data and technology to offer career opportunities and fulfill business talent needs. |
2,100 | |||
| 88 |
Cubacuba-london.co.uk
Integrated marketing agency specializing in creating campaigns based on insights to drive sales for clients through advertising, direct, digital, film, branding, and repro services |
2,073 | |||
| 89 |
GRUP MEDIAPROmediapro.tv
A leading European group in the audiovisual sector, specializing in content integration, production, distribution, smart cities planning, interactive museum spaces, and marketing content planning |
2,065 | |||
| 90 |
Young Professionalsyoung-professionals.uk
This company connects schools and colleges with companies to help place school leavers into apprenticeships and work experience programs with top brands |
2,029 | |||
| 91 |
Newsquest Media Groupnewsquest.co.uk
A regional media company in the UK, part of Gannett Inc, with a focus on local news, digital advertising, and marketing solutions |
1,984 | |||
| 92 |
+ Vendasmaisvendas.pt
A +Vendas offers professional solutions for critical business areas, specializing in sales impact through commercial and marketing, HR training, organizational management, and investment projects |
1,975 | |||
| 93 |
MiQwearemiq.com
Programmatic media partnership leveraging agnostic buying platforms, audience intelligence, and TV data to deliver high-performance advertising campaigns for various brands and agencies. |
1,965 | |||
| 94 |
Omnicom Media UKomnicommediagroup.com
Connects diverse media agencies using a marketing orchestration system to provide relevant consumer experiences and inclusive environments through award winning strategic planning. |
1,963 | |||
| 95 |
Image AIthehealthmarketing.com
Revolutionizing image interaction with AI solutions for accessibility, usability, and enjoyment Offering image classification, generation, search, analysis services for various industries |
1,950 | |||
| 96 |
Hi-techhi-tech.hr
Digital agency specializing in internet and mobile advertising, creating campaigns and projects for domestic and international clients with a passionate and dynamic team |
1,935 | |||
| 97 |
We Are Socialwearesocial.com
A global creative agency specializing in social media, crafting ideas that resonate with online communities to reach targeted audiences effectively |
1,926 | |||
| 98 | 1,905 | ||||
| 99 |
Facebook Advertising
The company specializes in Facebook and LinkedIn marketing campaigns, social media solutions, application development, and consulting for businesses |
1,905 | |||
| 100 |
ALTAVIAaltavia-group.com
Global network providing Retail Marketing Services with solutions for retail brands worldwide Specializing in Commercial Activation, offering consulting, creation, execution, and installation services |
1,856 | |||
Turn this list into pipeline
Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.
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 213,553
- Multinational companies in Europe 42,025
- Companies with in-house R&D in Europe 20,169
- Retail chains in Europe 19,259
- Manufacturers in Europe 18,156
- Professional services firms in Europe 13,698
- SaaS companies in Europe 13,682
- Software Development companies in Europe 12,950
- Financial services firms in Europe 12,943
- IT Services and IT Consulting companies in Europe 11,705
- IT services companies in Europe 11,376
- Hardware manufacturers in Europe 10,565
- Family-owned companies in Europe 9,878
- Critical infrastructure operators in Europe 9,815
- Financial Services companies in Europe 9,480
- Consulting firms in Europe 8,900
- Public sector organisations in Europe 8,568
- Education providers in Europe 7,925
- Companies with a mobile app in Europe 7,898
- Distributors and wholesalers in Europe 7,573
- Retail companies in Europe 6,240
- Healthcare providers in Europe 6,132
- E-commerce companies in Europe 5,864
- Hotel and hospitality groups in Europe 5,741
The same list elsewhere
- Marketing and communications agencies in the world 7,103
- Marketing and communications agencies in France 2,084
- Marketing and communications agencies in the United Kingdom 984
- Marketing and communications agencies in Belgium 184
- Marketing and communications agencies in Germany 163
- Marketing and communications agencies in Spain 160
- Marketing and communications agencies in the Netherlands 133
- Marketing and communications agencies in Italy 128
- Marketing and communications agencies in Switzerland 96
- Marketing and communications agencies in Sweden 43
- Marketing and communications agencies in Poland 40
- Marketing and communications agencies in Denmark 30