The Maze: Central Europe has two ecommerce centers of gravity. Germany owns today's revenue, with 57% of the regional total and nearly 20% online penetration. Greece and Poland own more adoption runway. Greece grows fastest from a small base; Poland combines 8.9% growth with a US$31.2 billion market. The choice is not mature versus attractive. It is whether an operator is built to win share and frequency in the West, or to build adoption and infrastructure farther east and south.
Germany is the scale market, not the easy-growth market. Forecast 2026 ecommerce revenue reaches EUR118.7 billion, more than every other country in the region combined. Yet 19.8% of retail spending is already online and growth is 7.7%. That changes the operating brief. Sellers do not get a large adoption tailwind; they need sharper assortment, retention, loyalty, category expansion, and repeat purchases. Germany remains indispensable, but its opportunity is measured in share captured from sophisticated competitors rather than shoppers newly discovering ecommerce.
Poland offers the cleanest balance of scale and runway. Its US$31.2 billion market is already large enough to support a domestic platform ecosystem, led by Allegro, while online penetration remains only 10.5%. Growth of 8.9% is not the fastest in the region, but the base is more than three times Greece's and almost seven times Hungary's. For expansion plans, that combination matters more than a headline growth rate alone. Poland can justify local logistics, payments, media, and merchandising investment while still benefiting from retail spending moving online.
Greece is the fastest catch-up story, with a capture problem attached. Growth reaches 10.9% while penetration is 9.1%, the widest adoption gap among the highlighted markets. But its US$9.7 billion base is small, and cross-border competition can absorb the upside before local operators do. Amazon has no direct Greek presence, leaving domestic platforms and players such as Temu, Shein, and AliExpress to compete for the gap. High growth therefore signals runway, not ownership of the runway.
Maturity changes the growth engine. The joint ECDB and Mastercard report shows why. Early-stage markets can grow by adding online buyers and categories. Mature markets must make existing customers transact more often. Across Central Europe from 2023 to 2025, average net order value grew only 0.4% a year and buyer count 1.5%, while purchase frequency grew 4.3%. The regional gradient is therefore also an operating-model gradient: acquisition and channel migration matter more in catch-up markets; retention and habit formation matter more in mature ones.
Why it matters: A country ranking built only on growth will overvalue small bases. A ranking built only on revenue will overvalue mature markets with limited adoption headroom. The useful portfolio view combines revenue, online penetration, growth, and likely value capture. Germany funds scale but demands efficiency. Greece supplies speed but needs disciplined entry economics. Poland sits in the middle with the strongest blend of addressable revenue and runway. The next Central European winners will not copy one regional playbook; they will match market maturity to the right customer, platform, and fulfillment model.
