European iGaming Compliance Squeeze: B2B Suppliers Face Binary Choice as Grey Market Access Narrows and Regulated Market Entry Costs Rise

Europe's Grey Market Is Shrinking — And B2B Suppliers Can No Longer Sit on the Fence

The European online gambling industry has operated for over a decade with a structural ambiguity: regulated markets exist and are growing, but significant grey market volumes persist alongside them, and many B2B technology suppliers have pragmatically served operators across both segments. That ambiguity is ending — not because of a single regulatory event, but because a convergence of enforcement mechanisms is making grey market player acquisition systematically less economically viable.

The Compliance Squeeze Mechanisms

Payment processor cooperation. In markets including Germany, the Netherlands, and Sweden, regulators have developed formal frameworks for identifying unlicensed gambling transactions and requiring payment processors to block them. Visa and Mastercard have implemented enhanced monitoring for gambling merchant category codes in markets where unlicensed online gambling is explicitly prohibited.

IP blocking and DNS enforcement. Germany's Joint Gambling Authority (GEJ) and the Netherlands' Kansspelautoriteit (KSA) have both implemented mandatory ISP-level DNS blocking for unlicensed gambling sites. While VPNs provide a bypass route, requiring players to use VPNs creates a conversion cost that unlicensed operators absorb in acquisition efficiency.

Shared exclusion list expansion. GamStop in the UK, Cruks in the Netherlands, and SPELPAUS in Sweden all maintain player self-exclusion registers that regulated operators must check. Increasing discussion in 2026 of cross-border exclusion list data sharing would make it significantly harder for players registered on exclusion lists in one jurisdiction to access grey market products in another.

B2B regulatory exposure. Several European gaming regulators have signalled intent to hold B2B technology suppliers to account for the operator relationships they maintain. A game studio or platform provider that continues supplying a blacklisted operator faces increasing risk of finding its own licence applications and renewals complicated by that relationship.

The Binary Choice for B2B Suppliers

The companies that define their regulated market positioning clearly in 2026 will be better positioned for the next wave of European market maturation — particularly as UKGC affordability checks arrive in Q3, the Netherlands responsible gambling framework tightens, and Germany's interstate treaty continues to evolve.

For B2B providers that have deferred the decision, the question is no longer strategic: it is operational. Grey market operator relationships that were commercially defensible three years ago are increasingly becoming liabilities that complicate licence applications, partner conversations, and due diligence processes in the regulated market they are trying to build toward.

Sources: EEGaming, NEXT.io, iGaming Business. Compiled May 22, 2026.