Founded in Manchester in 2019, One Day Agency is a stand-alone integrated advertising and marketing company with operations in Berlin, Warsaw, London, and Paris. In order to guarantee that campaigns are unified, effective, and efficient, One Day eliminates silos by combining creative, media, and strategy into a single, collaborative workflow, in contrast to typical agencies.

The agency works closely with media owners around the world, allowing for local relevance while preserving the scope and velocity of a worldwide operation. Senior practitioners with extensive experience oversee every campaign, guaranteeing that strategy and execution are closely coordinated and provided without multiple levels of account management. Through direct client interaction with the team developing their campaigns, this practitioner-led approach supports more informed decision-making and improved communication.

Services Provides By One Day Agency

Design and Creative

One Day Agency develops brand experiences and advertising that are compatible with all media. Whether it's a TikTok clip, TV spot, billboard, or digital banner, their method views creativity as communication that is specific to the medium. To make sure that every asset efficiently reaches its audience, designers work closely with media specialists.

Concept development, brand campaigns, digital advertisements, motion graphics, 3D animation, graphic design, video and picture editing, wall murals, and artificial intelligence-based creative solutions are among the services offered. In order to make campaigns more memorable, impactful, and successful in achieving their goals, every project strives to create imagery and messaging that appeal to people, have an impact, and skillfully combine creative concepts with media strategy.

Out-of-Home Advertising

Out-of-home advertising is a type of marketing that introduces the brand to consumers when they're out and about as opposed to in their homes or online. Using a combination of traditional and digital screens that may display dynamic, data-informed material to increase visibility and engagement, it involves planning and purchasing media like as billboards, transportation advertisements, street furniture, and place-based formats to ensure your message is seen in busy real-world environments. In order to ensure that advertisements reach the right people at the right time and help brands increase awareness and remain at the forefront of the minds of customers in the real world, their strategy blends audience insight, creative development, and campaign activation.

Digital Marketing Services

One Day Agency provides end-to-end digital media services, covering planning, buying, and management of both organic and paid marketing across the entire customer journey. They run sponsored social campaigns on Meta, TikTok, LinkedIn, Snapchat, Pinterest, Twitch, and X, alongside search and shopping ads on Google, Bing, and Apple, plus YouTube campaigns. Their SEO strategy includes technical fixes, on-page optimization, link building, content, and e-commerce tactics to boost organic visibility. They handle influencer partnerships, produce creative assets like banners, videos, and story-driven ads, and deliver programmatic display and video advertising, connected TV, digital audio, and analytics, tracking, and reporting to optimize campaigns.

TV Advertising

One Day Agency’s TV advertising service helps brands plan, buy, and manage campaigns across broadcast TV, VOD, streaming platforms, and connected TV. They partner with major broadcasters like ITV, Sky, and Channel 4 to secure linear TV placements that boost reach, trust, and frequency, and then extend campaigns into VOD with targeting based on age, location, interests, and content. They also run campaigns on ad-supported streaming platforms like Disney Plus, Netflix, and Amazon Prime Video, combining traditional and digital media for measurable impact. Additional services include TV sponsorships, YouTube advertising and connected TV placements, delivering precise audience targeting on the big screen.

Expanding Globally with Integrated Marketing

Instead of treating performance, digital media planning, and creative as separate silos, One Day Agency has positioned itself as an integrated advertising and marketing firm. By blending creative work with media strategy and execution, they deliver consistent, connected campaigns across more than 35 countries, with offices in Manchester, London, Warsaw, Paris, and Berlin. Their growth strategy focuses on expanding internationally, attracting larger clients, and executing complex, cross-channel campaigns, with France set for reinforcement in 2026. The agency is investing heavily in talent and leadership to drive strategic work across digital, programmatic, TV, radio, paid social, and out-of-home. By breaking traditional agency boundaries and combining creative with media execution, they are diversifying clients, strengthening their global footprint, and positioning themselves as a forward-thinking leader in the integrated agency model.

Ricardo | Founder & CEO

One Day Agency, founded in 2019 by Ricardo Seixas in Manchester, is a fully integrated agency with offices in London, Paris, and Berlin. Seixas, an advertising executive and entrepreneur with over 20 years of experience across consumer brands, tech firms, start-ups, and international agencies on four continents, envisioned an agency that unites creative, media, and digital under one roof. Under his leadership, One Day Agency has rapidly expanded, delivering global campaigns across Europe and beyond. The agency has been recognized as a Top 50 Integrated Agency and frequently collaborates with a range of clients, from travel boards to globally recognized brands. Ricardo and his team have received numerous accolades, including Prolific North’s Independent Agencies to Watch, Best Use of Research, and Global Biddable Agency of the Year, honored for their research-based approach, strategic thinking, and ability to deliver measurable results at scale.

“As an integrated marketing and advertising agency, we add value to brands by bridging the gap between creative, digital and media.”