| # | Company | Employees |
|---|---|---|
| 1 |
Private Companybuzz2bucks.com
This business, which is now closed and no longer operating, provided services or products that are no longer available |
87,462 |
| 2 | 34,192 | |
| 3 |
WPP Mediawppmedia.com
Global media collective leveraging AI, platforms, people, and partners to create innovative solutions driving brand growth worldwide daily. |
28,457 |
| 4 |
Omnicom Mediaomnicommedia.com
Designs growth ecosystems using Omni Intelligence Platform, connecting media agencies to deliver relevant consumer and client experiences globally. |
13,741 |
| 5 |
Stagwellstagwellglobal.com
A challenger holding company specializing in transforming marketing strategies and practices |
10,825 |
| 6 |
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 |
| 7 |
TBWA\Worldwidetbwa.com
Innovative creative collective using Disruptionยฎ methodology to build strong brands that defy convention and compete with culture globally |
10,386 |
| 8 |
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 |
| 9 |
IPG Mediabrandsomnicommedia.com
manages global marketing investments through full-service agencies and specialty units, serving diverse industries with media and marketing solutions |
8,776 |
| 10 | 8,062 | |
| 11 | 7,459 | |
| 12 |
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 |
| 13 |
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 |
| 14 |
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 |
| 15 |
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 |
| 16 | 4,140 | |
| 17 |
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 |
| 18 |
Spark Foundrysparkfoundryww.com
A global media agency under Publicis Media, combining innovation with industry talent to deliver award-winning campaigns worldwide |
3,284 |
| 19 |
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 |
| 20 | 3,127 | |
| 21 |
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 |
| 22 |
Horizon Mediahorizonmedia.com
Provides innovative media planning and buying services, focusing on business outcomes, diversity, and a strong client-centric culture. |
3,105 |
| 23 |
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 |
| 24 |
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 |
| 25 | 2,957 | |
| 26 |
Real Chemistryrealchemistry.com
The company enhances healthcare commercial success through AI-powered experiences, putting the customer at the center and aiming to transform healthcare |
2,858 |
| 27 |
Omnicom Productionomnicomproduction.com
Creation of data-driven content experiences connecting brands and consumers across all touchpoints, delivering scalable solutions through a global network. |
2,847 |
| 28 |
Publicis Healthpublicishealth.com
A global network of healthcare marketing agencies within a communications holding company, focused on empowering individuals to take control of their health and well-being |
2,737 |
| 29 |
GroupM Nexusgroupm.com
GroupM Nexus offers global performance solutions by integrating addressable content, AI technology, and omnichannel solutions for maximum efficiency and innovation |
2,709 |
| 30 |
Interpublic Group (IPG)omc.com
A values-based marketing solutions provider with globally recognized brands in advertising, communications, and data-driven creativity, generating over $10 billion in revenue |
2,620 |
| 31 |
OUTFRONT Mediaoutfront.com
Provides an integrated target platform for brands to connect with audiences through technology, location, and creativity, driving impact and engagement. |
2,443 |
| 32 |
Assembly Globalassemblyglobal.com
Global agency utilizing data, technology, and talent to deliver full-funnel media, creative, and commerce solutions through integrated brand performance planning and strategic engineering. |
2,396 |
| 33 | 2,393 | |
| 34 | 2,328 | |
| 35 |
Mechanical Engineering Worldmechanical-knowledge.com
A leading community knowledge platform in oil, gas, and power industries, providing updated education, jobs, and resources for mechanical and related fields |
2,205 |
| 36 |
Razorfishrazorfish.com
Razorfish is a digital marketing agency that sees consumers as more than just metrics, creating meaningful connections and enriching lives |
2,203 |
| 37 |
UM Worldwideumww.com
Global media network operating in over 100 countries, empowering brands through intelligent, diverse, and business-focused marketing solutions worldwide. |
2,141 |
| 38 |
Wunderman Thompsonvml.com
Inspire growth for ambitious brands through a combination of creative agency services, consultancy expertise, and technology solutions. |
2,130 |
| 39 |
Online Marketing Instituteonlinemarketinginstitute.org
A leading digital marketing education provider offering certification programs and a vast eLearning library with expert instructors worldwide |
2,024 |
| 40 |
Intersection Co.intersection.com
Experience-driven Out of Home media and technology company delivering programming, consumer amenities, and advertising to cities for easier, sustainable urban life. |
2,008 |
| 41 |
BBDO Worldwidebbdo.com
Award-winning ad agency with global reach and passionate belief in creativity to drive brand growth through transformative consumer experiences |
1,913 |
| 42 |
maisonmaisonthats.us
This company specializes in transforming and building brands through strategy, creative design, brand identity, copywriting, and website development |
1,890 |
| 43 |
IPG Healthomc.com
Global network of healthcare marketing agencies combining creativity, technology, data, and culture to improve health and wellness outcomes worldwide. |
1,866 |
| 44 | 1,847 | |
| 45 |
Travel Agencytherealtravelagency.com
An innovative agency specializing in campaign creative, viral content, new formats, trending culture, and maximizing shareability for brands |
1,822 |
| 46 |
Currently Seeking Opportunities
Platform connecting individuals with job options, offering possibilities for career growth and development |
1,763 |
| 47 |
Comcast Advertisingcomcastadvertising.com
A global advertising division fostering connections between brands, audiences, publishers, and industry players through advanced data, technology, and media solutions |
1,760 |
| 48 |
Titanintersection.com
Intersection is a company that was formerly known as Titan, providing information about their rebranding and directing to their website and new LinkedIn page |
1,659 |
| 49 |
Attentiveattentive.com
The company specializes in conversational commerce through personalized SMS communications, driving e-commerce revenue for leading brands and strengthening consumer relationships |
1,517 |
| 50 | 1,516 | |
| 51 |
Emeraldemeraldx.com
A team of industry experts helps grow businesses through connections, content, and commerce via events, matchmaking, lead-gen services, and digital platforms |
1,490 |
| 52 |
LocaliQlocaliq.com
Marketing growth platform helping businesses attract, convert, and retain new customers to unleash their potential |
1,488 |
| 53 |
FreeWheelfreewheel.com
Providing TV and video advertising technology for buyers and sellers in the multiscreen ecosystem, offering tools, data, and insights to drive results |
1,440 |
| 54 | 1,400 | |
| 55 |
VaynerMediavaynermedia.com
Contemporary global creative and media agency focused on driving relevance for clients and achieving impactful business results, with offices worldwide and industry recognition |
1,375 |
| 56 |
Annalectannalect.com
Global specialty services company delivering data-driven capabilities through crossroads of tech, analytics, and AI to drive better business outcomes for leading brands. |
1,336 |
| 57 |
Momentum Worldwidemomentumww.com
Global agency creating total brand experiences through sponsorship, shopper marketing, design, technology, and PR to build meaningful consumer connections for major corporate clients. |
1,331 |
| 58 |
Hearts & Sciencehearts-science.com
Data-driven marketing agency providing personalized digital solutions and media orchestration to build emotional consumer connections and drive growth across global touchpoints. |
1,320 |
| 59 |
Affiliate Marketingaxoramedia.com
The company specializes in performance-based marketing, rewarding affiliates for bringing in visitors or customers through their marketing efforts |
1,318 |
| 60 |
FCB Globalbbdochi.com
Global creative agency network providing brand building, customer experience, commerce, data, and performance marketing services to drive business growth through innovative strategic campaigns. |
1,211 |
| 61 |
Tinuititinuiti.com
Independent full-funnel marketing agency managing digital media across commerce, search, social, and TV, focusing on growth, measurement, and proprietary technology solutions. |
1,203 |
| 62 |
Inizio Evokeinizioevoke.com
Global health marketing and communications platform providing data-driven insights, transformation, access, and media services for healthcare organizations to simplify complexity and unlock growth. |
1,191 |
| 63 |
Comcast Spotlightcomcastadvertising.com
Specializes in multiscreen TV advertising, connecting brands with their target audiences through innovative and effective advertising solutions. |
1,157 |
| 64 |
Publicis Digital Experience
A division of Publicis Groupe focused on enhancing brand experiences through technology, consumer engagement, CRM, and commerce solutions worldwide |
1,150 |
| 65 |
FINN Partnersfinnpartners.com
Global integrated marketing agency with 1300+ people across 35 offices on 3 continents, focused on innovative communications and client impact. |
1,136 |
| 66 |
Anteriadanteriad.com
A data-driven and tech-enabled company that empowers B2B marketing leaders with highly-trusted global data for integrated, performance-driven campaigns |
1,130 |
| 67 |
AREA 23 | An IPG Health Companyarea23hc.com
Pushes creativity and invention in healthcare marketing. Provides a framework for breakthrough ideas, driving innovation and keeping clients ahead of industry trends. |
1,128 |
| 68 |
Samsung Adssamsung.com
This company provides advertising solutions across TV, mobile, and desktop devices, leveraging consumer data to deliver quantifiable results for brands globally |
1,122 |
| 69 |
Matterkindmatterkind.com
A marketing technology unit focusing on conscious marketing, ethical data usage, and customer experience to drive better business outcomes |
1,099 |
| 70 | 1,091 | |
| 71 |
FCB Health New Yorkomc.com
A full-service agency with over 40 years of experience specializing in healthcare marketing, driving business forward with innovative and impactful solutions |
1,079 |
| 72 |
Good Applegoodapple.com
An independent agency founded by former Razorfish employees focused on delivering scalable results without bureaucracy, fostering collaboration with clients |
1,076 |
| 73 |
Brainlabsbrainlabsdigital.com
A global digital-first media agency specializing in testing, tech, and talent to deliver remarkable marketing ROI across various digital channels |
1,065 |
| 74 |
VML COMMERCEvml.com
Creative global marketing agency specializing in brand experience and commerce integration to drive growth for major corporations through innovative digital transformation solutions. |
1,029 |
| 75 |
Enginebig-village.com
Global company combining advertising, technology, data, media, insights, and creative services to solve complex marketing challenges collaboratively. |
943 |
| 76 |
160over90160over90.com
Award-winning global marketing agency providing channel-agnostic services through human connections for leading brands including Coca-Cola, Amazon, and McDonald's within the WME Group. |
900 |
| 77 |
Keplerkeplergrp.com
This company combines data analytics, human insight, and creativity to propel global brands into the future through their proprietary Kipโข technology |
861 |
| 78 |
GALEgale.agency
A business agency specializing in blending business insights with brand storytelling and activating across all channels, with multiple awards for excellence |
850 |
| 79 |
Copywritingcarolinecasey.carbonmade.com
Creative agency specializing in TV and podcast commercial scripts, branding strategy, integrated campaigns, app consulting, comedy, product descriptions, and social media management Serving top clients |
840 |
| 80 |
Amsiveamsive.com
Full-service agency specializing in customer acquisition, digital and direct marketing, audience science, SEO, paid search, and performance measurement to drive business growth. |
822 |
| 81 |
Innovidinnovid.com
A global leader in connected TV advertising, offering personalized streaming, real-time decisioning, and accredited measurement for the world's largest brands |
808 |
| 82 |
Interbrandinterbrand.com
A world-leading brand consultancy pioneering iconic brand building tools for global brands, helping them make bold moves to drive extraordinary results |
806 |
| 83 |
Anomalyanomaly.com
Innovative 'new model' agency with diverse skills, offices worldwide, and prestigious clients, known for creative excellence and unconventional accolades |
803 |
| 84 |
Nexxennexxen.com
Provides a flexible technology stack including DSP, SSP, and data platform to support discovery, planning, activation, and monetization in advanced TV advertising. |
798 |
| 85 |
Seedtagseedtag.com
A global contextual advertising company creating impactful solutions for premium content, using contextual AI for cookie-free targeting and engagement Founded in 2014 |
755 |
| 86 |
Cadentcadent.com
Cadent enhances TV brand advertising by offering data-driven solutions for buying and selling across national inventory sources, boosting campaign efficiencies and results |
752 |
| 87 |
Advertising Checking Bureau (ACB)acbcoop.com
It specializes in managing channel marketing programs, including Co-op Advertising, rebates, and incentives for consumer and B2B marketplaces. |
751 |
| 88 | 733 | |
| 89 | 727 | |
| 90 |
Publicis Collectivepubliciscollective.com
Innovative company blending media, technology, creative, CRM, and analytics to provide cutting-edge solutions for clients with a focus on people |
725 |
| 91 |
Time Warner Cable Medialinkedin.com
The company provides media and advertising solutions under the brand Spectrum Reach, catering to a wide range of audiences and marketing needs |
720 |
| 92 |
TBWA\Chiat\Daytbwachiatday.com
Innovative advertising agency part of a global network, creating disruptive ideas to involve brands in culture Works with top global clients |
720 |
| 93 |
choreographchoreograph-acceleration.webflow.io
A data-driven media transformation company that partners with clients to solve unseen problems, driving results through innovative methodologies and tools |
717 |
| 94 |
Effectvlinkedin.com
This company offers multi-screen marketing solutions for advertisers to combine digital and TV advertising, with a presence in 66 markets |
715 |
| 95 |
BGBxbgbgroup.com
Independent healthcare agency providing medical communications, promotional advertising, strategic consulting, and market access using data science to drive brand growth and behavioral change. |
707 |
| 96 |
Katz Media Groupkatzmedia.com
Leading media representation company offering access to 3,000+ radio and 700+ TV stations, delivering locally-relevant advertising solutions to national marketers |
681 |
| 97 |
SelfMadeselfmade.co
This company offers top-notch post-production services and AI-driven creative strategy to help enhance marketing teams |
675 |
| 98 |
Mediahub Worldwidemediahubww.com
Award-winning global media agency focused on helping disruptive brands achieve growth and brand velocity through data-driven strategies and creative solutions. |
674 |
| 99 |
Commonground/MGScommongroundmgs.com
A transformational marketing communications agency specializing in helping brands align with ever-changing culture through creativity and technology |
673 |
| 100 | 666 |
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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 Oct 9, 2026.
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