# 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). 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. πŸ‡¦πŸ‡Ί Australia Β· 50 companies Β· Updated Nov 12, 2026 | # | Company | Industry | Headquarters | Employees | Founded | |---|---|---|---|---|---| | 1 | [SEO](https://www.tamtam.ai/c/seo) (optimising.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 | πŸ‡¦πŸ‡Ί Melbourne | 10,205 | 1999 | | 2 | [Outsourced Doers](https://www.tamtam.ai/c/outsourced-doers) (outsourceddoers.com)
Outsourced Doers provides virtual marketing assistants to entrepreneurs globally, helping them save time and grow their businesses cost-effectively | Outsourcing and Offshoring Consulting | πŸ‡¦πŸ‡Ί Sydney | 1,821 | | | 3 | [Sensis](https://www.tamtam.ai/c/sensis) (sensis.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 | πŸ‡¦πŸ‡Ί Melbourne | 1,162 | | | 4 | [IVE Group](https://www.tamtam.ai/c/ive-group) (ivegroup.com.au)
Largest Australian marketing company offering strategic thinking, creative production, brand activations, data-driven communications, and seamless distribution services. | Marketing Services | πŸ‡¦πŸ‡Ί Sydney | 1,027 | 1921 | | 5 | [DT](https://www.tamtam.ai/c/dt) (dt.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 | πŸ‡¦πŸ‡Ί Melbourne | 1,006 | 1996 | | 6 | [oOh!](https://www.tamtam.ai/c/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 | πŸ‡¦πŸ‡Ί North Sydney | 997 | 1989 | | 7 | [PMY Group](https://www.tamtam.ai/c/pmy-group) (pmygroup.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 | πŸ‡¦πŸ‡Ί Melbourne | 760 | | | 8 | [DesignCrowd](https://www.tamtam.ai/c/designcrowd) (designcrowd.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 | πŸ‡¦πŸ‡Ί Surry Hills | 750 | 2008 | | 9 | [Brand Influence Group (BIG)](https://www.tamtam.ai/c/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 | πŸ‡¦πŸ‡Ί McMahons Point | 612 | 2011 | | 10 | [GrowthOps](https://www.tamtam.ai/c/growthops) (growthops.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 | πŸ‡¦πŸ‡Ί South Melbourne | 610 | | | 11 | [SGK](https://www.tamtam.ai/c/sgk) (sgkinc.com)
A leading Australian design agency that transforms packaging to amplify brands, enabling them to grow stronger and scale faster | Design Services | πŸ‡¦πŸ‡Ί North Sydney | 546 | | | 12 | [CROSSMARK Australia](https://www.tamtam.ai/c/crossmark-australia) (crossmark.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 | πŸ‡¦πŸ‡Ί Sydney | 535 | 1984 | | 13 | [Online Marketing Gurus](https://www.tamtam.ai/c/online-marketing-gurus) (onlinemarketinggurus.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 | πŸ‡¦πŸ‡Ί Crows Nest | 535 | 2012 | | 14 | [FSM](https://www.tamtam.ai/c/fsm-northbridge) (vandal.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 | πŸ‡¦πŸ‡Ί Northbridge | 510 | 1984 | | 15 | [OMD Australia](https://www.tamtam.ai/c/omd-australia) (omd.com)
Global marketing and communications agency focused on people, data-driven insights, and growth Known for performance, integrity, and inclusive culture | Advertising Services | πŸ‡¦πŸ‡Ί South Eveleigh | 509 | 2000 | | 16 | [JimJam Ideas](https://www.tamtam.ai/c/jimjam-ideas) (jimjamideas.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 | πŸ‡¦πŸ‡Ί Sydney | 505 | 2011 | | 17 | [Spark Event Group](https://www.tamtam.ai/c/spark-event-group) (sparkeventgroup.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 | πŸ‡¦πŸ‡Ί Southbank | 503 | 2020 | | 18 | [Creative Activation](https://www.tamtam.ai/c/creative-activation) (creativeactivation.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 | πŸ‡¦πŸ‡Ί Walsh Bay | 496 | 1984 | | 19 | [Are Media Pty Ltd](https://www.tamtam.ai/c/are-media-pty-ltd) (aremedia.com.au)
An omnichannel content company in Australia for women, creating influential and inspiring content through various platforms to drive positive change | Media Production | πŸ‡¦πŸ‡Ί Sydney | 493 | | | 20 | [Clemenger BBDO](https://www.tamtam.ai/c/clemenger-bbdo) (clemengerbbdo.com.au)
This company specializes in providing creative solutions and ideas of value for culturally significant brands, using innovative and pioneering methods | Advertising Services | πŸ‡¦πŸ‡Ί Sydney | 465 | | | 21 | [Trasnet](https://www.tamtam.ai/c/trasnet) (trasnet.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 | πŸ‡¦πŸ‡Ί Long Stratton | 427 | 2012 | | 22 | [Web3](https://www.tamtam.ai/c/web3) (web3.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 | πŸ‡¦πŸ‡Ί Brisbane CBD | 416 | 2012 | | 23 | [Sports Entertainment Network](https://www.tamtam.ai/c/sports-entertainment-network) (sportsentertainmentnetwork.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 | πŸ‡¦πŸ‡Ί Southbank | 414 | | | 24 | [KOJO](https://www.tamtam.ai/c/kojo-richmond) (kojo.co)
A global company specializing in sports, entertainment, and experiences, captivating audiences worldwide with creative, inspiring, and entertaining content | Entertainment Providers | πŸ‡¦πŸ‡Ί Richmond | 401 | | | 25 | [Strikeforce AMC](https://www.tamtam.ai/c/strikeforce-amc) (strikeforce.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 | πŸ‡¦πŸ‡Ί Mount Waverley | 400 | 1989 | | 26 | [Clemenger Careers Australia & New Zealand](https://www.tamtam.ai/c/clemenger-careers-australia-and-new-zealand) (cle.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 | πŸ‡¦πŸ‡Ί Melbourne | 393 | | | 27 | [First Page](https://www.tamtam.ai/c/first-page) (firstpage.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 | πŸ‡¦πŸ‡Ί Melbourne | 390 | 2011 | | 28 | [Buzz](https://www.tamtam.ai/c/buzz) (buzzproducts.com)
Global design company creating signature moments for travel by partnering with airlines, hotels, cruise, and rail brands worldwide. | Design Services | πŸ‡¦πŸ‡Ί Melbourne | 389 | 1999 | | 29 | [Fusion Corporation](https://www.tamtam.ai/c/fusion-corporation) (fusioncorp.co)
Fusion offers centralized retail marketing solutions, including display systems, printing, packaging, and digital services through various specialist agencies worldwide | Marketing Services | πŸ‡¦πŸ‡Ί Port Melbourne | 380 | 2005 | | 30 | [The General Store](https://www.tamtam.ai/c/the-general-store) (thegstore.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 | πŸ‡¦πŸ‡Ί Surry Hills | 378 | 2012 | | 31 | [UMM](https://www.tamtam.ai/c/umm) (umm.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 | πŸ‡¦πŸ‡Ί Sydney | 369 | 1998 | | 32 | [Cartology - Part of the Woolworths Group](https://www.tamtam.ai/c/cartology-part-of-the-woolworths-group) (cartology.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 | πŸ‡¦πŸ‡Ί Surry Hills | 351 | | | 33 | [Cutting Edge](https://www.tamtam.ai/c/cutting-edge) (cuttingedge.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 | πŸ‡¦πŸ‡Ί West End | 351 | 1992 | | 34 | [Bastion](https://www.tamtam.ai/c/bastion) (bastionagency.com)
Integrated marketing and communications agency with a global presence, offering a full range of specialized services across various industries and markets | Advertising Services | πŸ‡¦πŸ‡Ί Australia | 345 | 2009 | | 35 | [Encore APAC](https://www.tamtam.ai/c/encore-apac) (encore-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 | πŸ‡¦πŸ‡Ί Rydalmere | 325 | 1986 | | 36 | [JCDecaux Australia](https://www.tamtam.ai/c/jcdecaux-australia) (jcdecaux.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 | πŸ‡¦πŸ‡Ί Sydney | 318 | 2001 | | 37 | [Tom Thumb](https://www.tamtam.ai/c/tom-thumb) (tomthumb.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 | πŸ‡¦πŸ‡Ί Neutral Bay Junction | 308 | 2012 | | 38 | [Cliftons](https://www.tamtam.ai/c/cliftons) (cliftons.com)
A go-to destination for creating remarkable global events, offering event management services, venues, technology, and comprehensive project support | Events Services | πŸ‡¦πŸ‡Ί Sydney | 283 | 1997 | | 39 | [Orchard](https://www.tamtam.ai/c/orchard-sydney) (orchard.com.au)
creative and technology business creating connected brand experiences and content to unlock cultural, business, and customer value globally | Advertising Services | πŸ‡¦πŸ‡Ί Sydney | 249 | | | 40 | [Digital Alchemy](https://www.tamtam.ai/c/digital-alchemy) (digitalalchemy.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 | πŸ‡¦πŸ‡Ί Sydney | 229 | 2003 | | 41 | [TGI Sport (Australia)](https://www.tamtam.ai/c/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 | πŸ‡¦πŸ‡Ί Cremorne | 229 | | | 42 | [OPG](https://www.tamtam.ai/c/opg) (fusioncorp.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 | πŸ‡¦πŸ‡Ί Port Melbourne | 229 | 2005 | | 43 | [Negocio](https://www.tamtam.ai/c/negocio)
Strategic marketing firm specialized in brand amplification, fan engagement, rights strategy, sponsorship, media planning, digital transformation, and retail execution | Advertising Services | πŸ‡¦πŸ‡Ί Melbourne | 222 | 2016 | | 44 | [FCM Meetings & Events](https://www.tamtam.ai/c/fcm-meetings-and-events) (fcmtravel.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 | πŸ‡¦πŸ‡Ί Sydney | 220 | | | 45 | [LPN](https://www.tamtam.ai/c/lpn) (lpn.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 | πŸ‡¦πŸ‡Ί Sydney | 219 | | | 46 | [Mushroom Group](https://www.tamtam.ai/c/mushroom-group) (mushroomgroup.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 | πŸ‡¦πŸ‡Ί Melbourne | 219 | 1972 | | 47 | [Atomic 212ΒΊ](https://www.tamtam.ai/c/atomic-212) (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 | πŸ‡¦πŸ‡Ί Pyrmont | 215 | | | 48 | [Overdose.](https://www.tamtam.ai/c/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 | πŸ‡¦πŸ‡Ί South Yarra | 208 | 2016 | | 49 | [Enigma](https://www.tamtam.ai/c/enigma) (helloenigma.com.au)
Creative and strategic team focused on building and growing distinctive, unignorable brands through media, strategy, and creative expertise. | Advertising Services | πŸ‡¦πŸ‡Ί Sydney \| Brisbane \| Newcastle | 199 | 1992 | | 50 | [Think HQ](https://www.tamtam.ai/c/think-hq) (think-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 | πŸ‡¦πŸ‡Ί South Melbourne | 196 | | ## 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 largest companies in Australia](https://www.tamtam.ai/l/largest-companies-australia) (5,556) - [Multinational companies in Australia](https://www.tamtam.ai/l/multinational-companies-australia) (1,184) - [Retail chains in Australia](https://www.tamtam.ai/l/retail-chains-australia) (577) - [Financial services firms in Australia](https://www.tamtam.ai/l/financial-services-firms-australia) (483) - [Critical infrastructure operators in Australia](https://www.tamtam.ai/l/critical-infrastructure-operators-australia) (450) - [Education providers in Australia](https://www.tamtam.ai/l/education-companies-australia) (402) - [Healthcare providers in Australia](https://www.tamtam.ai/l/healthcare-providers-australia) (397) - [Professional services firms in Australia](https://www.tamtam.ai/l/professional-services-firms-australia) (377) - [Financial Services companies in Australia](https://www.tamtam.ai/l/financial-services-companies-australia) (373) - [Government Administration companies in Australia](https://www.tamtam.ai/l/government-administration-companies-australia) (351) - [Public sector organisations in Australia](https://www.tamtam.ai/l/public-sector-organisations-australia) (326) - [Manufacturers in Australia](https://www.tamtam.ai/l/manufacturers-australia) (320) - [Companies with a mobile app in Australia](https://www.tamtam.ai/l/companies-with-mobile-app-australia) (305) - [Publicly traded companies in Australia](https://www.tamtam.ai/l/publicly-traded-companies-australia) (299) - [Hospitals and Health Care companies in Australia](https://www.tamtam.ai/l/hospitals-and-health-care-companies-australia) (297) - [Corporate groups and holding companies in Australia](https://www.tamtam.ai/l/holding-companies-australia) (280) - [E-commerce companies in Australia](https://www.tamtam.ai/l/ecommerce-companies-australia) (247) - [Retail companies in Australia](https://www.tamtam.ai/l/retail-companies-australia) (243) - [Companies with in-house R&D in Australia](https://www.tamtam.ai/l/r-and-d-companies-australia) (235) - [IT Services and IT Consulting companies in Australia](https://www.tamtam.ai/l/it-services-and-it-consulting-companies-australia) (215) - [Consulting firms in Australia](https://www.tamtam.ai/l/consulting-firms-australia) (210) - [Non-profit Organizations companies in Australia](https://www.tamtam.ai/l/non-profit-organizations-companies-australia) (190) - [Hotel and hospitality groups in Australia](https://www.tamtam.ai/l/hospitality-groups-australia) (188) - [Construction companies in Australia](https://www.tamtam.ai/l/construction-companies-australia) (186) ## The same list elsewhere in Australia - [Marketing and communications agencies in New South Wales](https://www.tamtam.ai/l/marketing-agencies-new-south-wales) (40) - [Marketing and communications agencies in Victoria](https://www.tamtam.ai/l/marketing-agencies-victoria) (31) ## The same list elsewhere - [Marketing and communications agencies in the world](https://www.tamtam.ai/l/marketing-agencies-in-the-world) (7,103) --- Source: https://www.tamtam.ai/l/marketing-agencies-australia