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Category

Marketing Agency

The Marketing Agency category represents large-scale, full-service digital transformation and creative firms that bridge the gap between brand strategy and technology implementation. These organizations solve complex problems for enterprise clients by combining creative excellence, strategic consulting, and technical capabilities to design and execute integrated marketing campaigns across digital channels. Rather than focusing on point solutions, marketing agencies in this space offer end-to-end services including digital strategy, creative development, technology architecture, data analytics, and customer experience optimization. They serve as trusted advisors to major brands navigating the increasingly complex landscape of digital marketing, helping clients leverage emerging technologies, manage multiple marketing technology platforms, and deliver cohesive experiences across touchpoints. The significance of this category within the AdTech ecosystem lies in its role as a critical intermediary between technology vendors and brand advertisers. Marketing agencies influence substantial advertising budgets and technology purchasing decisions, often serving as the primary implementers of AdTech solutions for their clients. They possess deep expertise in marketing technology stacks, data integration, and campaign optimization that enables brands to maximize ROI from their advertising investments. Additionally, these agencies increasingly develop proprietary tools and platforms that enhance their service delivery, effectively creating their own AdTech capabilities and sometimes competing directly with specialized technology providers. Current dynamics within this category reflect a consolidation of capabilities around digital transformation and customer experience. The roster of representative companies demonstrates a clear trend toward integrating traditional consulting expertise with digital marketing prowess, as evidenced by the presence of major consulting firms like Deloitte Digital and IBM iX alongside specialized digital agencies. There is also visible emphasis on data-driven marketing, artificial intelligence applications, and omnichannel campaign orchestration. The competitive landscape shows these agencies increasingly investing in proprietary technology platforms, automation capabilities, and vertical-specific solutions rather than relying solely on third-party AdTech vendors, signaling a shift toward more integrated, in-house technology development.

Companies

357

Tier distribution

S20A58B108Other171

357 Marketing Agency companies tracked by ATDb — 78 leaders, 23 recent deals.

Avg Completeness
75%
News (30d)
88
Deals (90d)
23
(20)
Accenture Song

Accenture Song

Creative & Experience Agency / Marketing Services

Accenture's creativity-and-experience business unit, formed by rebranding Accenture Interactive on April 26, 2022 and folding 40+ acquired agencies (Karmarama, Fjord, MXM, IMJ, Rothco, The Monkeys, SinnerSchrader, Kolle Rebbe, and others) under one brand. With Droga5 retaining its name as the sole exception. Reported $19B revenue FY2024 — the world's largest agency holdco by revenue, surpassing WPP. Led by David Droga (CEO 2021-Sep 2025); Ndidi Oteh succeeded him Sep 1 2025, reporting to Manish Sharma's Reinvention Services unit.

New York, New York
A

Aegis Group

Acquired

Media Services & Market Research

Aegis Group was a major global media services and market research conglomerate that operated leading networks including Carat and Synovate before being acquired by Dentsu in 2013 and subsequently absorbed into the Dentsu organization.

London, England
Dentsu Inc.

Dentsu Inc.

Rebranded

Integrated Marketing & Advertising Services

Dentsu is one of the world's largest advertising and media agency groups, offering integrated marketing, media, creative, and data-driven solutions to global brands.

Tokyo, Tokyo
GroupM

GroupM

Rebranded

Media Investment & Buying

GroupM is the world's largest media investment company, managing over $60 billion in annual media spend across multiple agency brands including Mindshare, Wavemaker, EssenceMediacom, and mSix&Partners.

London, New York
Havas

Havas

Integrated Advertising & Media Communications

Havas is one of the world's largest global communications and advertising groups, offering integrated media, creative, and health communications services across 100+ countries.

Paris, Île-de-France
Havas Media

Havas Media

Media Agency & Advertising Services

Havas Media is the global media network of Havas Group, offering integrated media planning, buying, and data-driven advertising solutions across 140+ countries.

Paris, Île-de-France
Interpublic Group

Interpublic Group

Merged

Advertising & Marketing Services

Interpublic Group (IPG) is one of the world's largest advertising and marketing services holding companies, housing a global network of creative, media, data, and PR agencies.

New York, New York
IPG Mediabrands

IPG Mediabrands

Merged

Media Planning & Buying

IPG Mediabrands is the media and marketing solutions division of Interpublic Group, operating major agency networks including UM, Initiative, and Mediabrands Content Studio.

New York, New York
J

J. Walter Thompson

Rebranded

Advertising & Creative Agency

J. Walter Thompson (JWT) was one of the world's oldest and largest advertising agencies, renowned for iconic brand campaigns across the globe before merging with Wunderman in 2018 to form Wunderman Thompson.

New York, New York
(58)
3

360i

Rebranded

Digital Advertising Agency

360i is a digital advertising agency brand operated within the Dentsu network. Founded in 1998 and acquired by Dentsu in 2010, 360i was folded into Dentsu Creative in 2022. In June 2026, Dentsu revived the 360i name as a lean, four-person, fixed-fee unit — a departure from the traditional agency model, led by managing director Christine Cotter and aimed at winning back work going to smaller, specialized shops.

New York, New York
72andSunny

72andSunny

Creative Advertising Agency

72andSunny is a global creative advertising agency known for bold, culturally-driven campaigns for major brands like Google, Activision, and Smirnoff.

Los Angeles, California
Accenture

Accenture

Marketing Technology & AdTech Consulting

Accenture is a global professional services company that provides a wide range of services, including digital marketing and advertising technology solutions, to help clients improve their marketing and advertising performance.

Dublin, Leinster
Accenture Interactive

Accenture Interactive

Rebranded

Digital Marketing & Experience Services

Accenture Interactive was the digital marketing and experience agency arm of Accenture, which merged with Publicis Groupe's operations in 2020 to form Accenture Song.

New York, New York
AKQA

AKQA

Digital Creative & Experience Agency

AKQA is a global digital design and communications agency specializing in creating digital experiences, products, and services for major brands.

London, California
Assembly

Assembly

Acquired

Media Buying & Planning

Assembly is the global media agency under Stagwell Inc., formed by merging Assembly + ForwardPMX into a single integrated media-buying and planning network. ~1,900 employees across 30+ offices in 20+ countries. Distinct from Assembly Industries (the Advent-backed e-commerce software platform that acquired Pacvue in 2021) despite the shared brand name.

New York, New York
BBDO

BBDO

Acquired

Creative Advertising Agency

BBDO is one of the world's largest and most awarded advertising agency networks, known for creating iconic campaigns for global brands across every major industry.

New York, New York
BBH (Bartle Bogle Hegarty)

BBH (Bartle Bogle Hegarty)

Creative Advertising Agency

Iconic British creative shop; founded 1982 in London by John Bartle, Nigel Bogle, and John Hegarty. 100% Publicis-owned since July 2012 (full acquisition completed). Distinctive among Publicis Communications networks for retaining strong founder-era creative culture.

London
B

BCW (Burson Cohn & Wolfe)

Rebranded

Public Relations & Communications

BCW (Burson Cohn & Wolfe) was WPP's PR network formed 2018 from the merger of Burson-Marsteller + Cohn & Wolfe. Merged with Hill & Knowlton on July 1, 2024 to form Burson. BCW brand retired.

New York, New York
(108)
1

160over90

Acquired

Cultural & Sponsorship Marketing

Cultural-marketing agency acquired by Publicis Groupe April 2026 (closing). Focused on sports + entertainment sponsorship + cultural relevance.

Philadelphia, Pennsylvania
3

3Q Digital

Acquired

Performance Marketing / Digital Advertising Agency

3Q Digital is a performance-driven digital marketing agency specializing in paid search, social, and programmatic advertising for high-growth brands and enterprises.

San Francisco, California
A

ADK Marketing Solutions

Integrated Marketing and Advertising

ADK Marketing Solutions is a Japanese integrated marketing and advertising agency offering digital advertising, creative, and data-driven marketing services across multiple channels.

Tokyo, Tokyo
A

ADK Media

Integrated Advertising & Media Services

ADK Media is a Japanese integrated advertising and marketing group offering end-to-end media planning, buying, and digital advertising solutions across Asia-Pacific markets.

Tokyo, Tokyo
Allison Worldwide

Allison Worldwide

Public Relations & Integrated Communications

Allison Worldwide is a global independent public relations and integrated communications agency helping brands navigate earned media, reputation management, and strategic communications.

San Francisco, California
A

Amazon Brand Innovation Lab

Creative Services / Retail Media / Digital Advertising

Amazon Ads' in-house creative agency, present in 17 countries globally; multi-Cannes-Lions winner. Distinct creative-services business unit within Amazon Ads.

Seattle, Washington
A

AMV BBDO

Creative Advertising Agency

AMV BBDO is one of the UK's most celebrated creative advertising agencies, known for iconic campaigns across major consumer brands and a consistent record of industry awards.

London, England
Anomaly

Anomaly

Creative Advertising Agency

Anomaly is a 'new model' advertising agency that creates brand-building platforms and solutions for clients. It operates across a range of disciplines, including advertising, digital, design, and product development, aiming to deliver innovative and effective work for global brands.

New York, New York
A

Asatsu-DK

Full-Service Advertising & Media Agency

Asatsu-DK (ADK) is Japan's third-largest advertising agency, offering integrated marketing, media buying, and digital advertising services with strong ties to the anime and entertainment sectors.

Tokyo, Tokyo
(91)
AdParlor

AdParlor

Social Media Advertising

AdParlor is a full-service digital advertising agency specializing in paid social media advertising across platforms like Meta, TikTok, Snapchat, and Pinterest. They provide campaign management, creative services, and performance optimization for brands and agencies. The company combines strategic planning with hands-on execution for social media advertising campaigns.

Toronto, Ontario
A

Adsmovil

Mobile Advertising / Multicultural Advertising

Adsmovil is the #1 Hispanic mobile ad network, MBE-certified, founded 2010 in Miami; its LatAm business was acquired by MiQ in March 2026 while the US business remains independent under founder Alberto Pardo.

Miami, Florida
AffiliateManager.com

AffiliateManager.com

Digital Marketing Services - Affiliate Marketing Management

AffiliateManager.com is a specialized full-service affiliate program management agency that serves as a strategic outsourcing partner for brands seeking to establish, scale, and optimize their affiliate marketing initiatives. The company provides comprehensive end-to-end management services that eliminate the need for brands to build in-house affiliate marketing expertise, offering dedicated account management, affiliate recruitment and vetting, performance optimization, compliance monitoring...

Orlando
Annex Experience

Annex Experience

Experiential Marketing & Creative Production

Experiential and creative production agency within the Havas Creative Network. Formerly known as Annex88.

New York, NY
A

APCO Worldwide

Public Affairs & Strategic Communications

APCO Worldwide is a global public affairs and strategic communications consultancy helping corporations, governments, and organizations navigate complex reputational and policy challenges.

Washington, District of Columbia
Arena Media

Arena Media

Media Agency / Media Buying & Planning

Media network within Havas Media Group with international footprint.

London, England
Arnold Worldwide

Arnold Worldwide

Creative Advertising & Marketing Services

US-based creative ad agency headquartered in Boston.

Boston, Massachusetts
Attivo Group

Attivo Group

Advertising & Marketing Services

New Zealand-based marketing and communications services holding company. Acquired Deutsch New York and Hill Holliday from Interpublic Group (IPG) in January 2024.

Auckland
A

AUX

Music Marketing & Brand Consulting

Spotify's in-house music consultancy for brands, launched February 2024. Pairs brands with artists/genres for campaigns; clients include Coca-Cola Coke Studio, Visa, Kona Big Wave. Operates under Spotify Advertising.

New York, NY
(22)
Adswerve

Adswerve

Marketing Analytics & Consulting

Adswerve is a digital marketing and analytics consultancy specializing in Google Marketing Platform, cloud data solutions, and marketing technology implementation.

Denver, Colorado
A

Aperto

Merged

Digital Agency / Digital Transformation

Berlin digital agency acquired by IBM April 2016 and rebranded as IBM iX Berlin. The legal entity continues as "IBM iX Germany GmbH" but the Aperto brand is sunset. Sources: IBM newsroom acq announcement + 2018 joint Aperto/ecx.io rebrand announcement.

Berlin, Berlin
Bain

Bain

Management Consulting

Bain & Company is a global management consulting firm, not primarily an AI/ML platform as described. Founded in 1973, Bain is one of the "Big Three" management consulting firms alongside McKinsey and BCG. The firm provides strategic advisory services to executives and boards of major corporations, private equity firms, and other organizations across various industries worldwide. Bain is known for its results-oriented approach and long-term client relationships. While Bain does leverage advan...

Boston, Massachusetts, USA, Massachusetts
Boston Consulting Group

Boston Consulting Group

Management Consulting (AdTech Advisory)

Boston Consulting Group is a global management consulting firm that provides advisory services to companies in the AdTech Platform space, helping them navigate the complex digital advertising landscape.

Boston, Massachusetts
B

Breadnbeyond

Video Production & Creative Services

Breadnbeyond is a video production agency specializing in animated explainer videos, product demos, and marketing videos for businesses.

Jakarta, Jakarta
C

Cashmere Agency

Rebranded

Multicultural & Cultural Marketing

Multicultural marketing and culture agency that joined the unified Media.Monks brand in August 2021 as part of the consolidation of all 24 S4 Capital operating companies. Media.Monks rebranded to Monks in July 2024. Historical brand: search now resolves to Monks.

Los Angeles, California
ConversionAdvocates

ConversionAdvocates

Conversion Rate Optimization

ConversionAdvocates is a leading Conversion Rate Optimization (CRO) agency based in London. They specialize in helping businesses improve their website's performance and revenue by implementing data-driven strategies to enhance user experience and conversion rates across various digital platforms.

London, England
Digitas

Digitas

Digital Marketing Agency

Digitas is a global marketing and technology agency that combines data, creativity, and technology to deliver connected brand experiences across digital and traditional channels.

Boston, Massachusetts
e

ecx.io

Merged

Digital Agency / Marketing Technology

Düsseldorf digital agency acquired by IBM March 2016 and rebranded into IBM iX. Brand sunset in joint 2018 announcement with Aperto. Sources: IBM newsroom acq announcement + 2018 joint rebrand.

Düsseldorf, North Rhine-Westphalia
Unranked(58)
a

adam&eve\TBWA

Acquired

Creative Advertising & Marketing Services

adam&eve\TBWA (formerly adam&eveDDB) is a leading UK-based creative advertising agency known for iconic campaigns, including the John Lewis Christmas ads, now operating within Omnicom's TBWA Worldwide network.

London, England
A

ADK Holdings

Integrated Advertising & Marketing Communications

ADK Holdings is a major Japanese integrated advertising and marketing communications group offering full-service agency, digital media, and content solutions across Asia.

Tokyo, Tokyo
A

Allied Sports

Sports Marketing & Sponsorship

Allied Sports is a sports marketing agency specializing in sponsorship consulting, activation, and branded content strategies for brands seeking to leverage sports partnerships.

New York, New York
A

Avenue A, Inc.

Rebranded

Digital Advertising Agency & Ad Management

Avenue A was a pioneering digital advertising agency and ad management platform that became one of the largest interactive agencies in the early 2000s before being rebranded as Razorfish.

Seattle, Washington
B

Blue State

Digital Marketing & Engagement Agency

Blue State is a digital engagement agency that helps progressive causes, nonprofits, and mission-driven organizations build movements, raise funds, and drive advocacy through data-driven digital strategies.

New York, New York
B

Brunswick Group

Strategic Communications & PR Advisory

Brunswick Group is a global strategic advisory and communications firm specializing in critical issues, reputation management, and stakeholder engagement for major corporations.

London
B

Bully Pulpit Interactive

Political & Advocacy Advertising / Digital Media Agency

Bully Pulpit Interactive (BPI) is a leading Democratic-leaning digital agency specializing in political campaigns, advocacy, and public affairs advertising with deep expertise in data-driven persuasion.

Washington, District of Columbia
C

Craft Worldwide

Creative Production & Content Localization

Craft Worldwide is a global creative production and content agency network specializing in adapting and localizing advertising content across markets for major multinational brands.

New York, New York
C

CSM Sport & Entertainment

Merged

Sports Marketing & Sponsorship Consulting

CSM Sport & Entertainment is a global sports and entertainment marketing agency specializing in sponsorship consulting, athlete representation, and brand activation across major sporting events and properties.

London