This list features large advertising services companies from around the world. These firms specialize in creative transformation, digital business transformation, media solutions, and brand experience. They include WPP, a creative transformation company, and Publicis Groupe, which helps clients transform their marketing and digital businesses. Other notable companies are VML, a global creative agency, and dentsu, which helps brands predict future opportunities.
A significant number of these companies, such as WPP, Clinic, and Clear Channel Europe, are headquartered in London, indicating a concentration of major players in the advertising sector in the UK capital. New York also features prominently with companies like VML, WPP Media, and Omnicom Media.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 41,040 | ||||
| 2 |
Publicis Groupepublicisgroupe.com
Helps clients transform their marketing and digital businesses, providing expertise in communications, media, data, and technology across 100+ countries. |
41,020 | |||
| 3 | 34,192 | ||||
| 4 |
WPP Mediawppmedia.com
Global media collective leveraging AI, platforms, people, and partners to create innovative solutions driving brand growth worldwide daily. |
28,457 | |||
| 5 |
Work From Home Jobsworkfromhomejobs.me
A platform for remote job seekers to discover various work from home job opportunities from different sources in one place |
19,671 | |||
| 6 |
dentsudentsu.com
Helping brands predict future opportunities and create growth paths by connecting brand, content, commerce, and experience with creativity. |
19,298 | |||
| 7 |
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 | |||
| 8 |
JOBsomosjob.ar
A communication and services agency providing creative solutions to consumer goods marketing teams Expert team with offices in Argentina and Uruguay |
15,492 | |||
| 9 |
Clear Channel Europeclearchanneleurope.com
Leading outdoor media company across 14 markets, transforming advertising through data-driven innovations and infrastructure for brands and positive global impact. |
15,206 | |||
| 10 |
work from anywhererjpjrblue.ws
Online business coach and mentor specializing in affiliate marketing, with multiple online businesses including SFI and cryptocurrency mining companies Working with sister to achieve success |
13,925 | |||
| 11 |
Omnicom Mediaomnicommedia.com
Designs growth ecosystems using Omni Intelligence Platform, connecting media agencies to deliver relevant consumer and client experiences globally. |
13,741 | |||
| 12 |
BARcivediamoalbar.com
Custom websites for all types and sizes Whether sober, elegant, or quirky, they create unique sites tailored to match your personality |
12,967 | |||
| 13 |
EssenceMediacomessencemediacom.com
EssenceMediacom is a leading agency focused on delivering marketing breakthroughs for brands through integrated media solutions and continuous learning |
12,000 | |||
| 14 |
Fiverr and Upwork Freelancers (Buyers and Sellers)
Provides social media management, Facebook and LinkedIn marketing, business lead generation, influencer promotion, digital skills endorsements, and online shop integration for global freelancers. |
11,661 | |||
| 15 |
SHOPsearchfindorder.com
Innovative marketplace offering a variety of trendy products including gadgets, electronics, home items, and automotive accessories for consumers seeking the latest trends |
11,517 | |||
| 16 |
Epsilonepsilon.com
It provides data-driven marketing solutions, enabling brands to engage consumers effectively across various channels using advanced technology and analytics. |
11,146 | |||
| 17 |
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 | |||
| 18 | 11,029 | ||||
| 19 |
Stagwellstagwellglobal.com
A challenger holding company specializing in transforming marketing strategies and practices |
10,825 | |||
| 20 |
Ogilvyogilvy.com
A global creative agency, specializing in advertising, media, public relations, and consulting, known for crafting iconic, culture-changing ideas for clients worldwide |
10,731 | |||
| 21 |
TBWA\Worldwidetbwa.com
Innovative creative collective using Disruption® methodology to build strong brands that defy convention and compete with culture globally |
10,386 | |||
| 22 | 10,261 | ||||
| 23 |
SEOoptimising.com.au
A leading SEO agency with over 15 years of experience, offering in-house services for web development, PR, copywriting, and digital marketing |
10,205 | |||
| 24 |
Almacénelalmacen.tv
An advertising agency founded in 2003, providing comprehensive communication services in traditional and digital media, BTL projects, and design for various brands |
9,273 | |||
| 25 |
Other.™weareother.ca
Specialized paid media and performance creative agency helping marketers optimize media spend, achieve targets, and outperform competition with proven methodologies and successful campaigns |
9,168 | |||
| 26 |
GroupMwppmedia.com
A global media investment group shaping the future of advertising to be more effective, with expertise in data, entertainment, and investment solutions |
9,156 | |||
| 27 | 9,150 | ||||
| 28 |
IPG Mediabrandsomnicommedia.com
manages global marketing investments through full-service agencies and specialty units, serving diverse industries with media and marketing solutions |
8,776 | |||
| 29 |
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 | |||
| 30 | 8,062 | ||||
| 31 | 7,459 | ||||
| 32 |
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 | |||
| 33 |
Leo Burnettleoburnett.com
Global communications agency combining creativity, data, and technology to influence human behavior and drive client prosperity worldwide. |
6,825 | |||
| 34 |
SGKsgkinc.com
Global packaging and brand experience company delivering solutions for brands to speak louder, scale faster, and grow stronger, with 6,500 employees worldwide |
6,821 | |||
| 35 |
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 | |||
| 36 |
Insightsnospace.com
Global leader in marketing data and analytics, providing deep insights into consumer behavior to inspire growth for clients worldwide |
6,668 | |||
| 37 |
MERCADOagenciamercado.com
Creative agency specializing in relationship marketing strategies, digital tools, and metrics to help brand owners achieve key objectives |
6,557 | |||
| 38 |
Digital Marketing
The company specializes in digital marketing services, utilizing online platforms and technologies to promote products and services through various channels |
6,410 | |||
| 39 |
McCannmccann.com
A global leader in creativity, strategy, and brand communication, uniting diverse practices across 100+ countries to help brands connect with consumers effectively |
6,335 | |||
| 40 |
JCDecauxjcdecaux.com
Global leader in outdoor advertising, specializing in street furniture, transport advertising, and billboard displays worldwide. |
6,312 | |||
| 41 |
Havas Media Networkhavasmedianetwork.com
Global media networks providing programmatic buying, data consulting, performance marketing, and social media services to connect brands with target audiences. |
6,053 | |||
| 42 |
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 | |||
| 43 |
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 | |||
| 44 |
Dentsu Creativedentsucreative.com
Global creative agency network unlocking client growth. Uses transformative creativity for positive impact on people, business, and society. |
5,803 | |||
| 45 |
PHDphdmedia.com
Global media agency network combining data, technology, and human expertise to create innovative campaigns and transform brand experiences worldwide. |
5,700 | |||
| 46 | 5,692 | ||||
| 47 |
Starcomstarcomww.com
A global leader in communications planning and media, focused on putting people at the center to inspire and drive business forward through data and technology |
5,691 | |||
| 48 | 5,494 | ||||
| 49 |
Fiverr Freelancers (Buyer and Seller)
Professionals in social media management and marketing, offering expertise in growing and managing LinkedIn and Facebook pages, promotion, ad campaigns, and employee services |
5,409 | |||
| 50 |
Zenithzenithmedia.com
A global agency specializing in media, data, technology, commerce, and content to drive successful business outcomes for clients worldwide |
5,382 | |||
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 |
nientelinkedin.com
No information about company activities, services, or products available in the provided content to describe company operations. |
5,342 | |||
| 52 |
Residenciaresidencia.com.mx
A multi-purpose agency creating digital experiences through various tools and technologies, including websites, online ads, viral campaigns, apps, videos, and interactive installations |
5,301 | |||
| 53 |
Foundryfoundryco.com
It focuses on media and martech, emphasizing relationships, consented data, and driving progress in diversity, inclusion, and tech accessibility. |
5,292 | |||
| 54 | 5,067 | ||||
| 55 |
FIRMAwearefirma.com
A full-service Branding and Innovation agency creating successful brands by combining actionable insights, strategic thinking, and creative imagination |
4,889 | |||
| 56 |
Havas Creative Networkhavascreative.com
Innovative global communications network offering custom solutions through a connected ecosystem of multidisciplinary teams, with access to entertainment and culture |
4,874 | |||
| 57 |
V4 Companyforms.v4company.com
An innovative marketing advisory firm specializing in optimizing sales online through the unique V4 Method, connecting results-driven individuals with businesses seeking growth |
4,867 | |||
| 58 |
Digital Marketingdmnpco.com
Providing digital marketing strategies, social media marketing, SEO, and advertising services to small businesses and start-ups Consulting for online marketing analysis |
4,841 | |||
| 59 |
Omnicom Precision Marketingomcpmg.com
Global digital marketing group leveraging data and CRM to create targeted customer experiences at scale through technology, strategy, data, and consulting services |
4,799 | |||
| 60 |
Saatchi & Saatchisaatchi.com
Global communications and advertising network creating impactful creative ideas that build strong emotional connections between consumers and brands worldwide. |
4,737 | |||
| 61 |
DEPT®dept.global
A pioneering technology and marketing services company creating global digital experiences for top brands, committed to sustainability and innovation |
4,701 | |||
| 62 |
Business Bytes Pakistanbusinessbytes.pk
Providing up-to-date news and insights on Pakistan's business environment, fostering innovation and industry connection for professionals. |
4,677 | |||
| 63 |
MediaComessencemediacom.com
An innovative marketing agency within EssenceMediacom GroupM, specializing in creating breakthroughs for brands Follow @EssenceMediacom for more |
4,671 | |||
| 64 |
INDIVIDUALiindividual.co
A talent development and personal branding studio offering personalized platforms for individuals and teams to align vision, share stories, and grow |
4,515 | |||
| 65 |
MECmecglobal.com
It is a global media agency formed by MEC and Maxus, focusing on innovative marketing and advertising solutions for clients. |
4,489 | |||
| 66 |
SPOTPROMOspotpromo.com.br
Agency specializing in merchandising and promotions, focused on achieving results aligned with brand strategies through impeccable execution, innovative solutions, and ethical practices |
4,269 | |||
| 67 |
Harte Hankshartehanks.com
A global customer experience company specializing in personalized marketing, customer care services, and fulfillment solutions to create enduring connections |
4,267 | |||
| 68 | 4,218 | ||||
| 69 |
Vendedorinstagram.com
A dynamic Egyptian marketing startup offering digital services, branding, event management, media production, and web development to drive business growth internationally |
4,206 | |||
| 70 | 4,140 | ||||
| 71 |
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 | |||
| 72 |
Jakartamedia7.net
A dedicated marketing agency in Jakarta, specializing in helping local businesses navigate digital marketing with simplified strategies and cost-effective solutions |
3,921 | |||
| 73 | 3,918 | ||||
| 74 | 3,894 | ||||
| 75 |
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 | |||
| 76 |
dentsu Japandentsu.co.jp
A network of over 160 group companies in Japan offering services in advertising, business, customer experience, and digital transformations to support client growth |
3,855 | |||
| 77 |
Publicis Re:Sourcespublicisresources.com
Provides technology solutions and business services including finance, accounting, legal, and procurement for agencies, enabling innovation and client transformation. |
3,796 | |||
| 78 |
Google AdSensegoogle.com
A program that enables publishers to display targeted ads on their websites to generate revenue based on clicks or impressions |
3,775 | |||
| 79 |
Lamar Advertising Companylamar.com
Offers various outdoor advertising formats, including billboards, transit, and airport displays, to help businesses reach broad audiences across the United States and Canada. |
3,761 | |||
| 80 |
Acxiomacxiom.info
Connected data and identity foundation unifying and preparing information for AI-driven marketing and decision-making through privacy-first ethics and global governance strategies. |
3,607 | |||
| 81 |
Government of Karnataka Projectdigitalvaastu.com
The company operates in Karnataka, India, providing governance and legislative services with a parliamentary system of government in place |
3,547 | |||
| 82 |
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 | |||
| 83 |
TikTok for Businessads.tiktok.com
A global platform offering creative solutions for brands to engage with the TikTok community through full-screen video formats |
3,414 | |||
| 84 |
Local Authoritylocalauthority.org
A company providing a comprehensive local ranking report by analyzing Google My Business listings for agencies to improve local marketing campaigns |
3,413 | |||
| 85 |
Spark Foundrysparkfoundryww.com
A global media agency under Publicis Media, combining innovation with industry talent to deliver award-winning campaigns worldwide |
3,284 | |||
| 86 |
Hogarthwppproduction.com
Creative production company combining craft, insight, and technology to bring creative work to life across global locations. |
3,262 | |||
| 87 |
Publicispublicisna.com
Full-service advertising agency, helping clients lead digital transformation. Global network, strategic, creative, and digital ideas for brand leadership and public consciousness. |
3,237 | |||
| 88 |
JK - Agencyjkgroupe.com
Strategic communication & engagement firm specializing in designing social experiences to create innovative ideas and build impactful projects |
3,135 | |||
| 89 | 3,127 | ||||
| 90 | 3,126 | ||||
| 91 |
Initiativeinitiative.com
Initiative is a media agency that helps ambitious brands grow by creating Fame and Flow through strategic media planning and responsible practices |
3,126 | |||
| 92 |
Horizon Mediahorizonmedia.com
Provides innovative media planning and buying services, focusing on business outcomes, diversity, and a strong client-centric culture. |
3,105 | |||
| 93 |
Cheil Worldwidecheil.com
A global agency specializing in performance-driven marketing, connecting creativity, data, tech, and retail to enhance business performance and consumer brand experience |
3,067 | |||
| 94 |
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 | |||
| 95 |
Spectrum Reachspectrumreach.com
The company is a trusted media sales company with 3,000 employees in 100 offices across 36 states, providing advertising solutions to businesses |
3,055 | |||
| 96 |
تسويق الكترونيsmartcodeit.com
A professional team offering digital marketing services, website design and development, graphic design, video production, presentations, targeted marketing, and social media management |
3,053 | |||
| 97 |
KINESSOacxiom.com
Technology-driven performance marketing agency providing actionable growth through optimization, analytics, AI, and experimentation capabilities across data, social platforms, commerce, and curated marketplaces. |
2,987 | |||
| 98 | 2,957 | ||||
| 99 |
Mosaic North Americamosaic.com
An integrated marketing agency in North America, creating connected brand experiences using data-led insights, expertise in various areas, and a 30-year history |
2,946 | |||
| 100 |
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 | |||
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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 13, 2026.
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The same list elsewhere
- Advertising Services companies in Europe 4,447
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- Advertising Services companies in Belgium 222
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- Advertising Services companies in the Netherlands 105
- Advertising Services companies in Italy 95
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