The French marketing leader expands its Central European footprint by acquiring Warsaw's subko&co, tapping into Poland's booming digital market.
DEKUPLE Group Acquires Polish Agency subko&co in Major European Push
PARIS, France – July 01, 2026 – European communication and data marketing leader DEKUPLE Group today announced it has acquired a majority stake in subko&co, a dynamic Polish digital marketing agency. The transaction, effective July 1, 2026, marks a significant step in DEKUPLE’s strategic expansion into Central Europe and an endorsement of Poland’s burgeoning digital economy.
Founded in 2013 by Marta Subko, a graduate of the prestigious Sciences Po Paris, subko&co has carved out a niche as a premier agency specializing in performance marketing, programmatic campaigns, and data analytics. The Warsaw-based firm will now join DEKUPLE’s international network, which spans Europe, North America, and China, while retaining its operational autonomy under the Group’s unique multi-entrepreneurial model. This move is poised to create powerful synergies, combining subko&co’s local expertise with DEKUPLE’s global scale and resources.
A Strategic Play in a Booming Market
This acquisition is not an isolated event but a calculated move within DEKUPLE Group’s “Ambition 2030” strategic plan. The plan outlines a clear path to generating over €400 million in net sales, with 30% of revenue originating outside of France, fueled by a €100 million fund dedicated to strategic acquisitions. The addition of subko&co follows a series of recent European acquisitions, including GUD.berlin in Germany (November 2024) and Selmore and DotControl in the Netherlands (January 2025), demonstrating a consistent and aggressive strategy to build a comprehensive European network.
The choice of Poland is particularly strategic. The country’s digital marketing landscape is one of the most vibrant in Europe, validating the press release’s description of it as a “fast-growing market.” In 2025, Poland's digital advertising market soared to nearly €2.6 billion, a remarkable 14.6% increase year-on-year. This growth is propelled by several powerful drivers, including an internet penetration rate approaching 90% and a booming e-commerce sector projected to surpass $52 billion by 2028. With online sales expected to constitute 20% of all retail by 2026, the demand for sophisticated digital marketing solutions has never been higher.
Furthermore, the Polish market shows advanced digital maturity. Programmatic advertising, an area of subko&co’s expertise, already accounts for nearly half of all online ad investments, with projections indicating that almost 80% of digital ad revenue will flow through programmatic channels by the end of 2026. By securing a strong foothold in this environment, DEKUPLE Group not only gains access to a new high-growth territory but also enhances its capabilities in cutting-edge marketing technologies.
The Unique Strengths of subko&co
For DEKUPLE, the appeal of subko&co extends far beyond its location. The agency represents a rich portfolio of expertise and a proven track record of delivering measurable results for a high-profile client base. Operating as a “one-stop-shop,” subko&co provides end-to-end solutions covering media consulting, MarTech integration, web analytics, campaign strategy, and creative production. This integrated approach has attracted leading brands such as Auchan, Michelin, Orange, and Unibail-Rodamco-Westfield.
A key differentiator for the Polish agency is its unique ability to act as a cultural and commercial bridge between the Polish and French-speaking markets—a capacity directly influenced by founder Marta Subko’s background. This bi-cultural fluency is a rare asset that will prove invaluable for DEKUPLE’s international clients looking to navigate the Central European landscape. The agency’s recognized success in the retail, FMCG, and real estate sectors aligns perfectly with DEKUPLE’s client base of over 750 large corporations and mid-sized companies.
Innovation is also at the core of subko&co’s DNA. Under its “Toolerslab” brand, the agency develops proprietary MarTech and AI tools, such as the AI Strategy Bot, designed to automate and optimize campaign processes. This focus on technology-driven performance fits seamlessly into DEKUPLE’s own three-pillar structure: Advise (data consulting via Converteo), Create (its network of agencies), and Boost (its MarTech solutions and data assets).
The Multi-Entrepreneurship Model in Action
Central to the deal is DEKUPLE Group’s commitment to its “multi-entrepreneurship” model. This philosophy is designed to attract best-in-class agencies by offering them the best of both worlds: the resources and reach of a global group, and the freedom to innovate and operate independently. As stated in the announcement, “Marta Subko and her teams will benefit from the Group’s commercial, technological, and operational synergies while maintaining their entrepreneurial autonomy.”
This is a proven approach for DEKUPLE. Previous acquisitions, such as the French communication agency Brainsonic and the German creative agency GUD.berlin, have thrived under this model. Their leadership and brands remained intact, allowing them to continue driving their businesses forward while plugging into DEKUPLE’s expansive ecosystem. For subko&co, this means retaining the agile, client-focused culture that has been the bedrock of its success.
Practically, these synergies will provide subko&co with access to DEKUPLE’s vast client roster, advanced technological platforms, and the collective expertise of 1,200 employees across 70 different marketing disciplines. This integration will empower the Warsaw team to scale its operations, take on larger international projects, and accelerate its growth trajectory far beyond what would be possible as a standalone entity.
Charting a Course for Integrated Growth
With the acquisition finalized, subko&co, a profitable and growing company, will be consolidated into DEKUPLE Group’s financial statements. This move is expected to be immediately accretive, bolstering a financial profile that is already strong. In the first half of 2025, DEKUPLE reported 12.3% growth in net sales, with its digital marketing operations expanding by over 16% and now representing nearly 70% of total net sales.
By integrating subko&co, DEKUPLE not only strengthens its “Create” pillar with a top-tier creative and performance agency but also enhances its “Boost” pillar with new MarTech capabilities. The acquisition solidifies the Group’s position as a comprehensive partner for brands seeking to optimize their marketing investments and drive growth in an increasingly complex digital world.
As European markets become more interconnected, the ability to offer integrated, cross-border solutions is a critical competitive advantage. With the addition of subko&co, DEKUPLE Group has significantly enhanced its capacity to deliver on that promise, cementing its status as a formidable force in the international marketing landscape.
