Market comparison
UK vs Australia: agency markets compared
Media investment is growing faster than most in-house teams are, so capacity in the strongest disciplines is contested. Digital demand is still growing while total agency bookings are not, so agencies compete harder for retained work.
Market size and coverage
Advertising figures come from the named industry body or statistics agency in each market. They are published on different bases and in different currencies, so treat them as scale, not a ratio.
United Kingdom
Budgets quoted in GBP where sourced.
- Total advertising investment
- £46.7bn (2025)
- Quarterly trend
- £12.5bn in Q3 2025
Roughly 10% growth year over year, with UK ad spend forecast to pass £50bn for the first time in 2026.
Source: Advertising Association / WARC Expenditure Report, 30 April 2026
Up 11.4% year over year.
Listed agencies: 75 across 15 cities
Scored on our methodology: 65
Main cities: London (51), Manchester (3), Sheffield (3), Bath (2), Birmingham (2), Bristol (2)
Deepest specialties: Branding (17), Digital Marketing (14), SEO (11), Brand Strategy (10), Paid Media (10)
Australia
Budgets quoted in AUD where sourced.
- Internet advertising spend
- $16.4bn (calendar 2024)
- Agency-booked media
- Down about 2% in 2025
An 11.1% increase year on year.
Source: IAB Australia / PwC Internet Advertising Revenue Report, 24 February 2025
A first half lifted by the federal election and a softer second half.
Listed agencies: 48 across 8 cities
Scored on our methodology: 0
Main cities: Sydney (16), Melbourne (10), Adelaide (7), Brisbane (7), Perth (5), Gold Coast (1)
Deepest specialties: Branding (13), Web Design (12), SEO (10), Digital Marketing (9), Ecommerce Marketing (9)
Rules that change the work
These differences usually matter more to a cross-border engagement than price does.
United Kingdom
- Advertising Standards Authority, applying the CAP and BCAP codes
- Competition and Markets Authority on misleading claims and green claims
- UK GDPR for personal data, enforced by the Information Commissioner's Office
- PECR for email, SMS, cookies and telephone marketing consent
Australia
- Ad Standards and the AANA codes of practice
- ACCC on misleading or deceptive conduct
- Privacy Act and the Australian Privacy Principles
- Spam Act consent and unsubscribe rules, plus the ACMA Do Not Call Register
What we have published for each market
United Kingdom
- Top 10 Marketing and Branding Agencies in the United KingdomLast researched September 9, 2026
- Hiring a Marketing or Branding Agency in the United Kingdom: A Buyer's GuideWhat the UK agency market looks like in 2026, where capability sits outside London, how the CAP Code, UK GDPR and PECR shape campaigns, and how to build a shortlist you can defend.
Australia
- Hiring a Marketing or Branding Agency in Australia: A Buyer's GuideWhat the Australian agency market looks like now, where capability sits beyond Sydney and Melbourne, how the AANA Codes, Australian Consumer Law, the Spam Act and the Privacy Act shape campaigns, and how to build a shortlist you can defend.
Choosing between UK and Australia
- Pick the market where the work is being sold, not where it is cheapest. Local media buying, language and consumer regulation are the hardest things to outsource across a border.
- For a cross-border engagement, agree the contract currency, who carries exchange-rate risk, where the work is performed and how personal data moves between the two jurisdictions before you sign.
- Ask both shortlists the same question: show one comparable project, the brief, what changed afterwards, and where those numbers came from.
- Check who actually runs the account. In both markets, the senior people in the pitch are frequently not the people delivering the work.