# The 30 largest marketing and communications agencies in the Hauts-de-Seine department
Tamtam tracks 235 marketing and communications agencies headquartered in the Hauts-de-Seine department. This list ranks the 30 largest by number of employees on LinkedIn, led by Havas, Solocal and SQLI. Their median headcount is 481. Half of them were founded in 2000 or later. The most common headquarters are Boulogne-Billancourt (11), Levallois-Perret (4) and Asni猫res-sur-Seine (3).
The companies listed operate in marketing, advertising, and business services, primarily in the Hauts-de-Seine department. These are mostly large firms, with a significant number employing over 1,000 people. Many of these companies focus on digital solutions and customer experience.
Havas is a global communications network, while Solocal provides digital solutions to businesses in France. SQLI specializes in IT services and digital transformation, and K Particulier is a health communication agency. Davidson consulting focuses on management consulting and technology, and GLOBE GROUPE SHOPPER HOUSE specializes in shopper marketing. A notable pattern is the concentration of headquarters in Boulogne-Billancourt and Levallois-Perret.
馃嚝馃嚪 Hauts-de-Seine 路 30 companies 路 Updated Nov 11, 2026
| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Havas](https://www.tamtam.ai/c/havas) (havas.com)
Global communications network providing integrated, data-driven, AI-powered marketing and communication solutions through collaborative, innovative teams worldwide. | Advertising Services | 馃嚝馃嚪 Puteaux | 11,029 | |
| 2 | [Solocal](https://www.tamtam.ai/c/solocal-boulogne-billancourt) (solocal.com)
Providing digital solutions to businesses in France through Search Local and Digital Marketing services, focusing on local content, personalized marketing, and growth acceleration | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 2,935 | |
| 3 | [SQLI](https://www.tamtam.ai/c/sqli) (sqli.com)
Leading European group for customer experience and digital transformation services. Empowering international brands with digital innovation, combining technology, methodologies, and AI for business growth. | IT Services and IT Consulting | 馃嚝馃嚪 Levallois-Perret | 2,854 | 1990 |
| 4 | [K Particulier](https://www.tamtam.ai/c/k-particulier) (k-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 | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 2,462 | 1996 |
| 5 | [Davidson consulting](https://www.tamtam.ai/c/davidson-consulting) (davidson.fr)
A management consulting and technology company with over 2,000 employees, expanding internationally with a focus on employee well-being and creativity | Business Consulting and Services | 馃嚝馃嚪 Boulogne-Billancourt | 1,843 | 2005 |
| 6 | [GLOBE GROUPE SHOPPER HOUSE](https://www.tamtam.ai/c/globe-groupe-shopper-house) (globe-groupe.com)
A European group specializing in Shopper Marketing and Sales, helping brands boost sales through New Retail approaches like phygital and shopper-centric strategies | Marketing Services | 馃嚝馃嚪 Neuilly-sur-Seine | 1,733 | 2002 |
| 7 | [MEDIAPOST](https://www.tamtam.ai/c/mediapost-montrouge) (mediaposte.fr)
Targeted distribution of advertising mail and proximity communication solutions using geographical and behavioral data to support client acquisition and loyalty across France. | Advertising Services | 馃嚝馃嚪 Montrouge | 1,306 | |
| 8 | [FMG SALES & MARKETING](https://www.tamtam.ai/c/fmg-sales-and-marketing) (fmgsam.fr)
With 20 years of experience, we are a leading provider of outsourced sales and marketing solutions in France, offering innovative and efficient commercial strategies for top companies | Business Consulting and Services | 馃嚝馃嚪 Asni猫res-sur-Seine | 1,084 | 2012 |
| 9 | [Datawords Group](https://www.tamtam.ai/c/datawords-group) (datawords.com)
Datawords specializes in delivering multicultural and locally relevant brand content, managing e-commerce websites, launching multicultural campaigns, and driving omnichannel performance globally | Marketing Services | 馃嚝馃嚪 Levallois-Perret | 946 | 2000 |
| 10 | [SI (S茅minaire International)](https://www.tamtam.ai/c/si-seminaire-international) (seminaire-international.com)
Specializing in business tourism, we provide turnkey stays and custom programs for memorable national and international events, offering creativity and exclusive locations | Events Services | 馃嚝馃嚪 Boulogne-Billancourt | 757 | 2014 |
| 11 | [RC Group](https://www.tamtam.ai/c/rc-group) (rc-group.fr)
Designs, manufactures, and installs diverse point-of-sale communication supports for luxury, cosmetics, pharmacy, and spirits sectors, adaptable to client needs. | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 583 | 1990 |
| 12 | [IMPACT Sales & Marketing France](https://www.tamtam.ai/c/impact-sales-and-marketing-france) (agence-impact.com)
Specializes in field marketing with sales force, merchandising, and customer experience solutions focused on achieving business objectives. | Advertising Services | 馃嚝馃嚪 Levallois-Perret | 533 | 2005 |
| 13 | [QUINZE MAI](https://www.tamtam.ai/c/quinze-mai) (15-mai.com)
Provides tailored event services supporting professional and private organizations with strategic, financial, and meaningful event experiences across Europe. | Events Services | 馃嚝馃嚪 Montrouge | 501 | 1975 |
| 14 | [Chic.](https://www.tamtam.ai/c/chic) (agencechic.com)
A luxury creative design and communication agency for premium brands, offering strategy, branding, product development, and marketing campaigns worldwide | Design Services | 馃嚝馃嚪 Asni猫res-sur-Seine | 493 | 2008 |
| 15 | [Havas Worldwide Paris](https://www.tamtam.ai/c/havas-worldwide-paris) (havasparis.com)
Integrated communication agency offering strategic advice across brand culture, retail, reputation, digital transformation, content, and international consulting services. | Advertising Services | 馃嚝馃嚪 Puteaux | 481 | |
| 16 | [脢tre 脡tudiant](https://www.tamtam.ai/c/etre-etudiant)
A media platform connecting over 1 million students in France through memes, advice, news, and student discounts on social media | Online Audio and Video Media | 馃嚝馃嚪 Neuilly-sur-Seine | 447 | 2017 |
| 17 | [TBWA Paris](https://www.tamtam.ai/c/tbwa-paris) (tbwa-paris.com)
Applies a 'disruption' philosophy, conceptualized by Jean-Marie Dru, to marketing strategies, documented in several books. Develops innovative Media Arts approaches. | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 443 | |
| 18 | [PagesJaunes SA](https://www.tamtam.ai/c/pagesjaunes-sa) (pagesjaunes.fr)
Local search leader, mobile apps, print directories, phone information services, online classifieds, and website creation for businesses. | IT Services and IT Consulting | 馃嚝馃嚪 Boulogne-Billancourt | 435 | 1946 |
| 19 | [Ind茅pendant](https://www.tamtam.ai/c/independant-levallois-perret) (linkedin.com)
The company specializes in digital strategy and community management for clients in the automotive, entertainment, and petrochemical industries Contact jean@van-ruymbekecom | Advertising Services | 馃嚝馃嚪 Levallois-Perret | 412 | 2017 |
| 20 | [local.fr](https://www.tamtam.ai/c/local-fr) (local.fr)
A marketing and local media company specialized in providing communication solutions to French local businesses, including websites, SEO, and multimedia content creation | Technology, Information and Internet | 馃嚝馃嚪 Nanterre | 402 | 1984 |
| 21 | [SARAWAK FRANCE](https://www.tamtam.ai/c/sarawak-france) (sarawak.fr)
Specializing in outsourced sales forces, animations in stores, and maximizing brand performance through motivated talents for consumer-centric results | Business Consulting and Services | 馃嚝馃嚪 Boulogne-Billancourt | 392 | 1999 |
| 22 | [MSM](https://www.tamtam.ai/c/msm) (junemarketing.fr)
A consumer-centric marketing agency specializing in market research, strategic planning, ideation, and digital tools to understand, inspire, and engage organizations for future success | Market Research | 馃嚝馃嚪 Clichy | 391 | 1986 |
| 23 | [Journey](https://www.tamtam.ai/c/journey-boulogne-billancourt) (lagalaxee.com)
LAGALAXEE designs and produces meaningful communication experiences through expert advice and teamwork, specializing in audiovisual content, interactive solutions, technical event services, and communication space design | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 371 | |
| 24 | [MIP](https://www.tamtam.ai/c/mip-boulogne-billancourt) (wearemip.com)
A hybrid B2B communication agency specializing in audiovisual, digital, and experiential content creation for clients such as ArianeGroup and Thales | Media Production | 馃嚝馃嚪 Boulogne-Billancourt | 363 | 2013 |
| 25 | [BIBICHE (ex-Makassar)](https://www.tamtam.ai/c/bibiche-ex-makassar) (makassar.fr)
A corporate communication agency specializing in branding, B2B communication, internal communication, and CSR for industrial and networked companies, founded in 2002 | Advertising Services | 馃嚝馃嚪 Clichy | 348 | 2002 |
| 26 | [WMH Project](https://www.tamtam.ai/c/wmh-project) (wmhproject.com)
An agile communications agency integrating talents to create brand experiences, focusing on commitment and human capital through events, design, travel, and PR services | Public Relations and Communications Services | 馃嚝馃嚪 Courbevoie | 347 | |
| 27 | [Districom Sales and Marketing](https://www.tamtam.ai/c/districom-sales-and-marketing) (districomsam.fr)
Designing and deploying sales strategies, focusing on sales animation, sales force, and merchandising for various economic sectors. | Advertising Services | 馃嚝馃嚪 Asni猫res-sur-Seine | 343 | 1973 |
| 28 | [GUTENBERG](https://www.tamtam.ai/c/gutenberg) (gutenberg.agency)
Design, create, produce, and deliver engaging content and packaging solutions supporting brands in retail, fashion, food, and services. | Advertising Services | 馃嚝馃嚪 Boulogne-Billancourt | 327 | 1979 |
| 29 | [NEXTEDIA](https://www.tamtam.ai/c/nextedia) (nextedia.com)
The Nextedia Group specializes in Cybersecurity, Cloud, Digital Workspace, and Customer Experience, providing expertise and solutions to large companies across various sectors | IT Services and IT Consulting | 馃嚝馃嚪 Puteaux | 305 | |
| 30 | [HRC](https://www.tamtam.ai/c/hrc-meudon)
A corporate communication consultancy firm providing strategies, editorial direction, communication plans, brand identity, reputation management, change management, content creation, website development, and managerial training | Writing and Editing | 馃嚝馃嚪 Meudon | 295 | 1999 |
## 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 the Hauts-de-Seine department
- [The largest companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/largest-companies-hauts-de-seine) (5,160)
- [Multinational companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/multinational-companies-hauts-de-seine) (1,231)
- [IT services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-companies-hauts-de-seine) (737)
- [IT Services and IT Consulting companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-hauts-de-seine) (706)
- [Professional services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/professional-services-firms-hauts-de-seine) (629)
- [Consulting firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/consulting-firms-hauts-de-seine) (563)
- [Companies with in-house R&D in the Hauts-de-Seine department](https://www.tamtam.ai/l/r-and-d-companies-hauts-de-seine) (510)
- [SaaS companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/saas-companies-hauts-de-seine) (389)
- [Business Consulting and Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/business-consulting-and-services-companies-hauts-de-seine) (304)
- [Software Development companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/software-development-companies-hauts-de-seine) (301)
- [Retail chains in the Hauts-de-Seine department](https://www.tamtam.ai/l/retail-chains-hauts-de-seine) (292)
- [Manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/manufacturers-hauts-de-seine) (285)
- [Advertising Services companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/advertising-services-companies-hauts-de-seine) (281)
- [Subscription businesses in the Hauts-de-Seine department](https://www.tamtam.ai/l/subscription-businesses-hauts-de-seine) (228)
- [Hardware manufacturers in the Hauts-de-Seine department](https://www.tamtam.ai/l/hardware-companies-hauts-de-seine) (199)
- [Financial services firms in the Hauts-de-Seine department](https://www.tamtam.ai/l/financial-services-firms-hauts-de-seine) (198)
- [Companies with a mobile app in the Hauts-de-Seine department](https://www.tamtam.ai/l/companies-with-mobile-app-hauts-de-seine) (189)
- [Critical infrastructure operators in the Hauts-de-Seine department](https://www.tamtam.ai/l/critical-infrastructure-operators-hauts-de-seine) (169)
- [AI companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/ai-companies-hauts-de-seine) (159)
- [Education providers in the Hauts-de-Seine department](https://www.tamtam.ai/l/education-companies-hauts-de-seine) (159)
- [Cybersecurity companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/cybersecurity-companies-hauts-de-seine) (154)
- [Distributors and wholesalers in the Hauts-de-Seine department](https://www.tamtam.ai/l/distributors-and-wholesalers-hauts-de-seine) (154)
- [Recruitment and staffing agencies in the Hauts-de-Seine department](https://www.tamtam.ai/l/recruitment-agencies-hauts-de-seine) (152)
- [Energy companies in the Hauts-de-Seine department](https://www.tamtam.ai/l/energy-companies-hauts-de-seine) (144)
## The same list elsewhere in France
- [Marketing and communications agencies in France](https://www.tamtam.ai/l/marketing-agencies-france) (2,084)
- [Marketing and communications agencies in 脦le-de-France](https://www.tamtam.ai/l/marketing-agencies-ile-de-france) (1,174)
- [Marketing and communications agencies in Auvergne-Rh么ne-Alpes](https://www.tamtam.ai/l/marketing-agencies-auvergne-rhone-alpes) (205)
- [Marketing and communications agencies in Provence-Alpes-C么te d'Azur](https://www.tamtam.ai/l/marketing-agencies-provence-alpes-cote-dazur) (128)
- [Marketing and communications agencies in the Rh么ne department](https://www.tamtam.ai/l/marketing-agencies-rhone) (102)
- [Marketing and communications agencies in Nouvelle-Aquitaine](https://www.tamtam.ai/l/marketing-agencies-nouvelle-aquitaine) (91)
- [Marketing and communications agencies in Grand Est](https://www.tamtam.ai/l/marketing-agencies-grand-est) (85)
- [Marketing and communications agencies in Occitanie](https://www.tamtam.ai/l/marketing-agencies-occitanie) (85)
- [Marketing and communications agencies in Hauts-de-France](https://www.tamtam.ai/l/marketing-agencies-hauts-de-france) (75)
- [Marketing and communications agencies in Pays de la Loire](https://www.tamtam.ai/l/marketing-agencies-pays-de-la-loire) (72)
- [Marketing and communications agencies in the Bouches-du-Rh么ne department](https://www.tamtam.ai/l/marketing-agencies-bouches-du-rhone) (63)
- [Marketing and communications agencies in the Nord department](https://www.tamtam.ai/l/marketing-agencies-nord) (57)
- [Marketing and communications agencies in the Gironde department](https://www.tamtam.ai/l/marketing-agencies-gironde) (51)
- [Marketing and communications agencies in Brittany](https://www.tamtam.ai/l/marketing-agencies-brittany) (46)
- [Marketing and communications agencies in the Loire-Atlantique department](https://www.tamtam.ai/l/marketing-agencies-loire-atlantique) (41)
- [Marketing and communications agencies in the Alpes-Maritimes department](https://www.tamtam.ai/l/marketing-agencies-alpes-maritimes) (39)
- [Marketing and communications agencies in Centre-Val de Loire](https://www.tamtam.ai/l/marketing-agencies-centre-val-de-loire) (38)
- [Marketing and communications agencies in Paris](https://www.tamtam.ai/l/marketing-agencies-paris) (812)
- [Marketing and communications agencies in Lyon](https://www.tamtam.ai/l/marketing-agencies-lyon) (78)
- [Marketing and communications agencies in Boulogne-Billancourt](https://www.tamtam.ai/l/marketing-agencies-boulogne-billancourt) (60)
- [Marketing and communications agencies in Levallois-Perret](https://www.tamtam.ai/l/marketing-agencies-levallois-perret) (40)
- [Marketing and communications agencies in Marseille](https://www.tamtam.ai/l/marketing-agencies-marseille) (39)
- [Marketing and communications agencies in Neuilly-sur-Seine](https://www.tamtam.ai/l/marketing-agencies-neuilly-sur-seine) (33)
- [Marketing and communications agencies in Bordeaux](https://www.tamtam.ai/l/marketing-agencies-bordeaux) (32)
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Source: https://www.tamtam.ai/l/marketing-agencies-hauts-de-seine