
International Advertising
Advertise in Helsinki
Advertise in Helsinki with One Day Agency
Achieve Brand Familiarity With Affluent Finnish Consumers Via Helsinki Advertising
Helsinki is both the capital and the most populated city in Finland. With a population of 656,000, it is augmented by the millions of domestic and international visitors who flock to the city during peak travel periods.
Last year, the city welcomed 2.4 million global arrivals, creating a multicultural international audience base for brand advertisers to target. The largest groups visiting Helsinki include visitors from the US, Sweden, Finland, Germany, Estonia, and the UK.
The outdoor marketing sector in Finland has grown significantly in recent years. Given that the vast majority of this activity is based in Helsinki, the city's position as a global leader in business, innovation, and tourism has provided even more compelling opportunities for brands keen to extend their reach.
Why Advertise in Helsinki?
Across Finland, spending on outdoor advertising has increased 8.7% year on year, with huge investments in digital out-of-home infrastructure boosting the market and providing innovative ways to capture interest from younger and affluent audiences.
Helsinki attracts continued demand from brands seeking to gain market share in Finland but also across the wider region, positioning themselves in a city that is perceived as one of the most forward-thinking and progressive in the world, with an ever-growing population of professionals and expat-owned businesses.
Brands can use the diversity of the Helsinki cityscape as a strategic advantage, targeting affluent residents, multinational businesses, and tourists. They can also use smart city initiatives that have introduced new digital screens in numerous high-traffic destinations.
Why One Day?
One Day is a dynamic, creative team of advertising and marketing experts. We create campaigns that speak directly to international audiences, built around in-depth insights into the cultural and social norms and consumer expectations that can help global brands augment their relevance and appeal in a new location.
Our all-senior teams work in an integrated way to combine our varied specialisms, ensuring every client has access to world-class creatives and insights into current media trends and can deploy campaigns with the benefit of advanced ad tech, media planning and media buying resources.
Advertise in Helsinki: Key Formats
Latest Out-of-Home Campaigns.
See below our selected work in media planning and buying, click or tap to view.
Technology Services - International OOH Campaign
FMCG - Out-of-Home Campaign in Ireland.
Non-Alcoholic Beer - Out-of-Home Campaign & TV

Meet the Media Planning Team
Klaudia
Head of Department
Shelby
Media Planning & Buying
Scott
Media Planning & Buying
“Helsinki blends Nordic design, digital innovation, and cultural influence—making it a powerful setting for high-impact outdoor advertising. At One Day Agency, we help brands reach audiences across the city’s most strategic locations, from transit corridors and central station hubs to retail zones and waterfront districts. With deep local insight and seamless campaign delivery, we turn Helsinki’s urban space into a stage for bold, effective storytelling.”
Ricardo Seixas, Founder and CEO, One Day Agency
Frequently Asked Questions.
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We often note that the ideal locations will differ between brands, and much will depend on the demographics and audiences that matter most to your business, the duration and nature of your campaign, and how you'd like viewers to respond to or interact with your promotion.
Many businesses look at combined digital and static outdoor advertising to optimise reach. They might, for instance, use digital advertising displays at Helsinki International to target business travellers, mixed with billboards in central Helsinki close to the biggest tourist attractions.
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Scandinavian and Nordic countries haven’t typically been regarded as high-demand locations for brand advertisers, which means that many out-of-home campaigns in this part of the world are considerably more cost-effective than they might be in other major capital cities where competition for outdoor advertising placements is fierce.
However, progressive, socially inclusive, and innovation-focused societies, economic and political stability, and high living standards, which contribute to high disposable incomes and levels of affluence, have prompted many brands to turn their attention north.
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While most figures are for Finland as a whole rather than the capital city specifically, they still reflect major growth, and given that the majority of campaigns are located in Helsinki, most spending is focused here.
Spending on outdoor marketing in 2023 reached a record high of £71.2 million and is forecast to continue growing, with the current trajectory showing an 8.7% year-on-year increase.

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