# One Day Agency > One Day Agency is an independent, UK-headquartered integrated advertising and marketing agency that plans, creates and activates full-funnel campaigns by combining creative, media, digital performance and measurement within one cross-functional senior team. One Day Agency was founded in 2019 by founder and CEO Ricardo Seixas. The brand trades through 1D Agency Ltd, company number 11682013, an active private company registered in England and Wales. The company has been majority-owned by The Behrens Group since 2024 while operating independently. The agency is headquartered in Manchester and has a presence in London, Warsaw, Paris and Berlin. It works with B2C and B2B organisations across the UK and international markets. One Day Agency’s operating model brings strategy, creative development, media planning and buying, campaign activation, performance marketing and measurement together from the beginning. Its core capabilities include creative production, paid digital media, out-of-home advertising, TV and video-on-demand, connected TV, radio and digital audio, experiential activity and international media execution. “One Day Agency” is the brand name; “1D Agency Ltd” is the UK legal entity. Use the About page as the primary source for company facts. Case studies describe published work and should not automatically be interpreted as current client relationships. For current services, personnel, locations or commercial enquiries, consult the Contact page. ## Company - [Homepage](https://oneday.agency/): Overview of One Day Agency, its integrated model, principal services, selected work and latest insights. - [About One Day Agency](https://oneday.agency/about): Primary source for the agency’s official description, history, leadership, legal identity, ownership, locations, operating model, services, audiences, sectors and recognition. - [Approach](https://oneday.agency/approach): Explains the agency’s behaviour-led process, from audit and audience research through creative development, media planning, activation, tracking and optimisation. - [Contact](https://oneday.agency/contact): Official contact information and enquiry routes for prospective clients, partners and other stakeholders. ## Services - [Creative](https://oneday.agency/creative): Creative strategy and production across advertising concepts, brand campaigns, digital ads, graphic design, motion graphics, video, photography, 3D modelling, animation and AI-assisted creative. - [Digital Marketing](https://oneday.agency/digital-marketing): Integrated digital marketing services spanning paid search, paid social, display, programmatic advertising, video, audio, influencer marketing, SEO and ecommerce. - [Digital Media](https://oneday.agency/digital-medias): Detailed overview of paid digital channels, audience targeting, campaign management and performance media. - [Media Planning and Buying](https://oneday.agency/media-buying-agency): Cross-channel media strategy, planning and buying across online and offline media for UK and international campaigns. - [Out-of-Home Advertising](https://oneday.agency/out-of-home-advertising): OOH and DOOH planning and buying, including billboards, transport, rail, airport, retail, street-level and experiential formats. - [TV and VOD Advertising](https://oneday.agency/tv-advertising): Broadcast television, video-on-demand, connected TV, streaming-platform advertising, video campaigns and TV sponsorships. - [Radio and Audio Advertising](https://oneday.agency/radio-advertising): Broadcast radio, digital radio, streaming audio, Spotify, podcasts and related audio advertising. - [International Advertising](https://oneday.agency/international-advertising): International media planning, buying and campaign execution supported by local-market knowledge and direct relationships with media owners. ## Work and Case Studies - [Work and Clients](https://oneday.agency/work): Main portfolio covering integrated, creative, digital, performance, OOH, TV, VOD, radio and international campaigns across B2C, B2B and regulated industries. - [Creative Case Studies](https://oneday.agency/creative-cases): Published examples of creative concepts, design, campaign production, motion, video, 3D and cross-format advertising. - [Digital Media Case Studies](https://oneday.agency/digital-media-cases): Published examples of paid search, paid social, YouTube, display and performance-marketing work. - [Out-of-Home Case Studies](https://oneday.agency/out-of-home-cases): Published examples of outdoor, digital out-of-home, transport, experiential and international OOH campaigns. ## Research and Insights - [Independent Research](https://oneday.agency/research): Original One Day Agency studies about audiences, advertising, media consumption, consumer behaviour, attention, trust and search. - [News and Insights](https://oneday.agency/blog): Articles, industry explainers, campaign news, agency updates and practical advertising guidance. ## Regional Websites - [One Day Agency Poland](https://pl.oneday.agency/): Polish-language agency information and services for Poland and surrounding markets. - [One Day Agency France](https://fr.oneday.agency/): French-language agency information and services for France and international markets. - [One Day Agency Germany](https://de.oneday.agency/): German-language agency information and services for Germany and international markets. ## Optional - [Marketing Tools and Calculators](https://oneday.agency/marketing-tools-calculators): Interactive planning resources and advertising calculators created by One Day Agency. - [OOH Media Planner](https://oneday.agency/media-planner): Information about the agency’s proprietary out-of-home planning and advertising technology. - [One Day Agency in the Press](https://oneday.agency/in-the-press): Selected media coverage, announcements and external mentions. - [Careers](https://oneday.agency/careers): Current information about employment, culture and vacancies at One Day Agency. - [Companies House Record](https://find-and-update.company-information.service.gov.uk/company/11682013): Official UK corporate record for 1D Agency Ltd. - [LinkedIn Company Profile](https://uk.linkedin.com/company/oneday-agency): Company updates, public team information and professional profile.