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Top Online Advertising Agencies in Ireland

Updated 6 August 2026 · 1 min read · 10 companies

Written byNuala Canning

Online advertising is the one Irish agency category with real review evidence behind it. One firm on this list carries 47 verified reviews, more than every other agency across these lists combined. That matters, because paid media is the discipline where results are measurable and clients have every reason to say so publicly.

What to look for in an advertising agency

  • Fee model, stated plainly. Flat retainer or percentage of spend. The second one pays the agency more when it spends more of your budget.
  • Account ownership. Your ad accounts and your data should be in your name. Agencies that resist this are creating a switching cost.
  • Depth over breadth. An agency spending daily in one platform beats one nominally covering six.
  • Review volume. Rare in this market, so where it exists, read it properly.

Before signing, ask who owns the ad account, the pixel and the historical data. Losing years of conversion history in an agency switch costs more than the retainer you were arguing about.

  1. 1. iDigitalise.net☑️

    Best for campaigns run across several markets

    • Highly recommended
    • Top awarded
    Location
    Dublin, Ireland
    Rating
    4.9 (47 reviews)
    Team size
    51-200
    Min project
    From €1,000

    European marketing and technology company with a Dublin presence and offices in Albania, the UAE and the USA. Holds 47 verified reviews at 4.9, by far the strongest review evidence in this set.

    Industries

    • Internet

    Languages

    • English
    • Albanian
  2. 2. Hovi Digital Lab

    Best for AI-assisted lead generation

    • Top awarded
    Location
    Dublin, Ireland
    Rating
    4.8 (5 reviews)
    Team size
    51-200
    Min project
    From €5,000

    Dublin firm of 51 to 200 people offering AI-driven optimisation across the marketing and sales process from lead generation to conversion. Five verified reviews at 4.8.

    Industries

    • Software & Computer Services

    Languages

    • English
    • Arabic
  3. 3. MarketingConsultant.ie

    Best for strategy-led paid search

    Location
    Dublin, Ireland
    Rating
    5.0 (1 review)
    Team size
    1-10
    Min project
    From €1,000

    Dublin digital marketing advisor specialising in strategy, search, paid search, lead generation and social.

    Industries

    • E-commerce

    Languages

    • English
  4. 4. Together Digital

    Best for enterprise and Fortune 500 experience

    Location
    County Dublin, Ireland
    Team size
    1-10

    Dublin agency citing work with Fortune 500 companies and leading Irish brands.

    Languages

    • English
  5. 5. Riordan SEO

    Best for paid and organic search together

    Location
    Dublin, Ireland
    Team size
    1-10
    Min project
    From €5,000

    Dublin agency focused on search visibility and targeted traffic, with a stated return-on-investment approach. Starting budget from 5,000 euro.

    Industries

    • Software & Computer Services

    Languages

    • English
  6. 6. CJ Digital Marketing

    Best for founder-led work for SMEs

    Location
    Cork, Ireland
    Team size
    1-10
    Min project
    From €300

    Founder-led agency in Cork run directly by Charlie Johns, serving small and medium businesses across Cork city and county. Starting budget from 300 euro, the lowest here.

    Languages

    • English
  7. 7. SPB Media Ltd - Hospitality Marketing Experts

    Best for hospitality advertising

    Location
    Dublin, Ireland
    Team size
    1-10

    Dublin agency specialising in marketing for the hospitality sector.

    Languages

    • English
  8. 8. Stone & Vale

    Best for agency experience at lower cost

    Location
    Letterkenny, Ireland
    Team size
    1-10
    Min project
    From €1,000

    Small remote team based in Letterkenny, offering agency-experienced marketing without agency overheads.

    Languages

    • English
  9. 9. 23 The Agency

    Best for creator-supported campaigns

    Location
    County Dublin, Ireland
    Team size
    1-10

    Dublin agency working collaboratively with clients and supporting a roster of creators.

    Languages

    • English
  10. 10. Acolad

    Best for advertising across multiple languages

    • Top awarded
    Location
    Dublin, Ireland
    Team size
    1001-5000
    Min project
    From €1,000

    Global content and language company established in 1995, present in 22 countries with over 1,600 employees. The only firm here able to run advertising across many languages in-house.

    Industries

    • Government & Administration

    Languages

    • English
    • Chinese

Frequently asked questions

How much does online advertising cost in Ireland?
Starting budgets here run from 300 to 5,000 euro, and that is the agency fee rather than the media spend. Most agencies charge either a flat retainer or a percentage of spend. Ask which model applies, because a percentage fee rewards the agency for spending more of your money.
Should the agency fee include media spend?
Usually not, and you should insist the two are separated on every invoice. Bundled billing makes it impossible to see what you paid the platform versus the agency. Ask for direct access to your own ad accounts so the data is yours.
How do I judge a paid media agency?
Ask for a named client whose account they lost and why. Agencies that answer honestly usually understand attribution well. Then ask which platform they spend most in monthly, because breadth across six platforms often means depth in none.
What review counts should I expect?
Very few. One agency here has 47 verified reviews, another has five, and the rest have none. That single 47-review profile is the strongest evidence in this entire set of Irish agency lists, and it is worth reading rather than skimming.

Running paid media behind a promotion or loyalty programme?

Tell us what you are promoting and we will tell you straight whether we are the right fit.