Tamtam Start free

The 50 largest marketing and communications agencies in Australia

Tamtam tracks 85 marketing and communications agencies headquartered in Australia. This list ranks the 50 largest by number of employees on LinkedIn, led by SEO, Outsourced Doers and Sensis. Their median headcount is 400. Half of them were founded in 2001 or later. The most common headquarters are Sydney (13), Melbourne (9) and Surry Hills (3).

馃嚘馃嚭 Australia50 companiesUpdated Nov 12, 2026

This list features larger marketing and communications agencies in Australia. These companies predominantly offer advertising services, marketing services, and design services. Many of them are established firms, with several founded in the late 20th century.

Key companies include SEO, an agency offering web development and digital marketing; Outsourced Doers, which provides virtual marketing assistants; Sensis, focused on digital and print solutions; and IVE Group, Australia's largest marketing company. A notable pattern is the concentration of headquarters in major cities, particularly Melbourne and Sydney, which host the majority of these larger agencies.

#CompanyIndustryHeadquarters EmployeesFounded
1
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

Advertising Services 馃嚘馃嚭 Melbourne 10,205 1999
2
Outsourced Doersoutsourceddoers.com

Outsourced Doers provides virtual marketing assistants to entrepreneurs globally, helping them save time and grow their businesses cost-effectively

Outsourcing and Offshoring Consulting 馃嚘馃嚭 Sydney 1,821 n/a
3
Sensissensis.com.au

Sensis provides digital and print solutions to help Australians connect and engage, offering search marketing, website products, data solutions, and digital agency services

Advertising Services 馃嚘馃嚭 Melbourne 1,162 n/a
4
IVE Groupivegroup.com.au

Largest Australian marketing company offering strategic thinking, creative production, brand activations, data-driven communications, and seamless distribution services.

Marketing Services 馃嚘馃嚭 Sydney 1,027 1921
5
DTdt.com.au

Brand experience agency with over 2,000 professionals in 21 international studios, combining art and science for imaginative solutions Visit website for more information

Advertising Services 馃嚘馃嚭 Melbourne 1,006 1996
6
oOh!oohmedia.com.au

Leading outdoor advertising company with extensive digital and classic assets, connecting brands to millions across Australia and New Zealand weekly.

Advertising Services 馃嚘馃嚭 North Sydney 997 1989
7
PMY Grouppmygroup.com

Providing comprehensive technology infrastructure, experiential systems, and intelligence solutions to optimize operations and enhance live venues and major events worldwide.

Technology, Information and Internet 馃嚘馃嚭 Melbourne 760 n/a
8
DesignCrowddesigncrowd.com

Global online marketplace for logo, graphic, and web design services Outsource creative projects to a pool of over 500,000 designers worldwide

Graphic Design 馃嚘馃嚭 Surry Hills 750 2008
9
Brand Influence Group (BIG)brandinfluencegroup.com

Provides experiential marketing, brand representation, talent management, sales, and visual merchandising through a nationwide mobile workforce of influencers.

Advertising Services 馃嚘馃嚭 McMahons Point 612 2011
10
GrowthOpsgrowthops.com.au

A growth services partner offering a fusion of marketing, technology, and people disciplines to help large organizations acquire customers, launch products, and scale operations

Marketing Services 馃嚘馃嚭 South Melbourne 610 n/a
11
SGKsgkinc.com

A leading Australian design agency that transforms packaging to amplify brands, enabling them to grow stronger and scale faster

Design Services 馃嚘馃嚭 North Sydney 546 n/a
12
CROSSMARK Australiacrossmark.com.au

Connecting brands with shoppers through merchandising, sales teams, brand ambassadors, and more for smarter, data-driven retail solutions and strategic partnerships worldwide

Retail 馃嚘馃嚭 Sydney 535 1984
13
Online Marketing Gurusonlinemarketinggurus.com.au

An award-winning digital marketing agency offering transparent and innovative services in SEO, PPC, Paid Social, Website, and more with evidence-based performance marketing

Advertising Services 馃嚘馃嚭 Crows Nest 535 2012
14
FSMvandal.au

The company specializes in creating beautifully crafted executions for tv, film, broadcast, social media, content and print, including art, illustration, motion design, animation, VFX, and technology They are dedicated to bringing ideas to life and exceeding expectations

Media Production 馃嚘馃嚭 Northbridge 510 1984
15
OMD Australiaomd.com

Global marketing and communications agency focused on people, data-driven insights, and growth Known for performance, integrity, and inclusive culture

Advertising Services 馃嚘馃嚭 South Eveleigh 509 2000
16
JimJam Ideasjimjamideas.com

Award-winning agency specializing in integrated communications, utilizing connected ideas for transformative marketing strategies, creative development, and end-to-end execution in the market

Advertising Services 馃嚘馃嚭 Sydney 505 2011
17
Spark Event Groupsparkeventgroup.com

A leading event management group providing end-to-end solutions for event owners and operators, offering workforce solutions, logistics, and specialized training opportunities

Events Services 馃嚘馃嚭 Southbank 503 2020
18
Creative Activationcreativeactivation.com.au

A retail partner specializing in merchandising, sales teams, brand ambassadors, mystery shopping, retail auditing, and customer engagement solutions for accelerated retail growth

Marketing Services 馃嚘馃嚭 Walsh Bay 496 1984
19
Are Media Pty Ltdaremedia.com.au

An omnichannel content company in Australia for women, creating influential and inspiring content through various platforms to drive positive change

Media Production 馃嚘馃嚭 Sydney 493 n/a
20
Clemenger BBDOclemengerbbdo.com.au

This company specializes in providing creative solutions and ideas of value for culturally significant brands, using innovative and pioneering methods

Advertising Services 馃嚘馃嚭 Sydney 465 n/a
21
Trasnettrasnet.co.uk

A digital agency in Norfolk offering design, development, and marketing services Specializing in website design, SEO, PPC, and email campaigns

IT Services and IT Consulting 馃嚘馃嚭 Long Stratton 427 2012
22
Web3web3.com.au

An Australian digital marketing agency specializing in custom website development, PPC campaign management, SEO, and various online advertising services for growth-focused organizations

Advertising Services 馃嚘馃嚭 Brisbane CBD 416 2012
23
Sports Entertainment Networksportsentertainmentnetwork.com.au

A dynamic sports and entertainment company connecting brands with fans through radio, television, digital, publishing, stadiums, events, and exclusive sports partnerships

Media Production 馃嚘馃嚭 Southbank 414 n/a
24
KOJOkojo.co

A global company specializing in sports, entertainment, and experiences, captivating audiences worldwide with creative, inspiring, and entertaining content

Entertainment Providers 馃嚘馃嚭 Richmond 401 n/a
25
Strikeforce AMCstrikeforce.com.au

A highly awarded outsourced sales and merchandising provider operating in Australia and New Zealand, improving partners' ROI through brand activation and shopper marketing solutions

Consumer Goods 馃嚘馃嚭 Mount Waverley 400 1989

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.

Get more companies, free
26
Clemenger Careers Australia & New Zealandcle.ms

Leading marketing communications group in Australia & New Zealand, with 26+ businesses offering creative, advertising, PR, design, and market research services Over 1,600 employees across multiple locations

Advertising Services 馃嚘馃嚭 Melbourne 393 n/a
27
First Pagefirstpage.com.au

A results-driven digital marketing agency specializing in SEO, content creation, ad campaigns, and lead generation for businesses seeking growth and success

Advertising Services 馃嚘馃嚭 Melbourne 390 2011
28
Buzzbuzzproducts.com

Global design company creating signature moments for travel by partnering with airlines, hotels, cruise, and rail brands worldwide.

Design Services 馃嚘馃嚭 Melbourne 389 1999
29
Fusion Corporationfusioncorp.co

Fusion offers centralized retail marketing solutions, including display systems, printing, packaging, and digital services through various specialist agencies worldwide

Marketing Services 馃嚘馃嚭 Port Melbourne 380 2005
30
The General Storethegstore.com.au

Specializing in retail strategy and innovation, services include brand strategy, marketing mix strategies, consumer insights, workshop facilitation, and creative innovation work for various clients

Advertising Services 馃嚘馃嚭 Surry Hills 378 2012
31
UMMumm.com.au

Crafting brand stories to inspire action through creative communication Specializing in PR, Social, Influencer, and Creative strategies to build lasting relationships with customers #PushingBrandsBeyond

Marketing Services 馃嚘馃嚭 Sydney 369 1998
32
Cartology - Part of the Woolworths Groupcartology.com.au

Data-led marketing solutions partner to Woolworths Supermarkets and BIG W, connecting brands with customers through targeted strategies and diverse media channels

Advertising Services 馃嚘馃嚭 Surry Hills 351 n/a
33
Cutting Edgecuttingedge.com.au

Innovative content creation and technical solutions for advertising, film, and television industries Services include design, animation, post-production, VFX, and branded communications

Movies, Videos, and Sound 馃嚘馃嚭 West End 351 1992
34
Bastionbastionagency.com

Integrated marketing and communications agency with a global presence, offering a full range of specialized services across various industries and markets

Advertising Services 馃嚘馃嚭 Australia 345 2009
35
Encore APACencore-apac.com

Expert global network providing strategic event design, audiovisual technology, and professional execution for high-impact meetings and hospitality industry live event production services.

Events Services 馃嚘馃嚭 Rydalmere 325 1986
36
JCDecaux Australiajcdecaux.com.au

A global out-of-home advertising company that provides high quality street furniture, transport advertising, and digital billboards in over 80 countries

Advertising Services 馃嚘馃嚭 Sydney 318 2001
37
Tom Thumbtomthumb.com.au

This company specializes in developing creative strategies to bring clients' visions to life, using a unique structure and expertise in marketing and business

Advertising Services 馃嚘馃嚭 Neutral Bay Junction 308 2012
38
Cliftonscliftons.com

A go-to destination for creating remarkable global events, offering event management services, venues, technology, and comprehensive project support

Events Services 馃嚘馃嚭 Sydney 283 1997
39
Orchardorchard.com.au

creative and technology business creating connected brand experiences and content to unlock cultural, business, and customer value globally

Advertising Services 馃嚘馃嚭 Sydney 249 n/a
40
Digital Alchemydigitalalchemy.global

A data-driven marketing company founded in 2003, now the largest in Asia Pacific, helping brands stay ahead, customer-centric, and relevant

IT Services and IT Consulting 馃嚘馃嚭 Sydney 229 2003
41
TGI Sport (Australia)tgisport.com

Specializing in sports marketing and fan engagement, we connect brands to fans through talent management, technology, events, merchandise, PR, partnerships, and more

Spectator Sports 馃嚘馃嚭 Cremorne 229 n/a
42
OPGfusioncorp.co

Specializing in innovative point of sale solutions, retail displays, and visual merchandising Offering design, prototype development, print management, and project management services

Advertising Services 馃嚘馃嚭 Port Melbourne 229 2005
43
Negocio

Strategic marketing firm specialized in brand amplification, fan engagement, rights strategy, sponsorship, media planning, digital transformation, and retail execution

Advertising Services 馃嚘馃嚭 Melbourne 222 2016
44
FCM Meetings & Eventsfcmtravel.com

Global corporate event services combining creative strategy and technology with travel program expertise to deliver large-scale meetings and brand experiences worldwide.

Events Services 馃嚘馃嚭 Sydney 220 n/a
45
LPNlpn.com.au

An independent creative agency specializing in marketing communications and brand development, delivering strategies and solutions across all relevant channels for clients

Advertising Services 馃嚘馃嚭 Sydney 219 n/a
46
Mushroom Groupmushroomgroup.com

The largest independent music and entertainment group in Australia, encompassing various specialist brands across the industry, offering a wide range of services and support for artists

Musicians 馃嚘馃嚭 Melbourne 219 1972
47
Atomic 212潞atomic212.com.au

Specialist performance media agency driving client growth through data-driven strategies, integrated marketing solutions, and regression-based media planning for revenue growth

Advertising Services 馃嚘馃嚭 Pyrmont 215 n/a
48
Overdose.overdose.digital

Global commerce consultancy combining enterprise experience with startup agility, delivering accelerated results through bespoke strategies and deep service integration for clients worldwide

Technology, Information and Internet 馃嚘馃嚭 South Yarra 208 2016
49
Enigmahelloenigma.com.au

Creative and strategic team focused on building and growing distinctive, unignorable brands through media, strategy, and creative expertise.

Advertising Services 馃嚘馃嚭 Sydney | Brisbane | Newcastle 199 1992
50
Think HQthink-hq.com.au

An integrated communications agency focused on driving social good through campaigns that center people, culture, and context for positive impact

Advertising Services 馃嚘馃嚭 South Melbourne 196 n/a

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.

Build your own list, free

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 Australia

The same list elsewhere in Australia

The same list elsewhere