The UK’s digital competition regime is facing renewed scrutiny after former Competition and Markets Authority chair Marcus Bokkerink urged ministers to take a tougher approach to the world’s largest technology companies.
The intervention has renewed pressure on the government and the CMA over the pace and force of enforcement under the Digital Markets, Competition and Consumers Act, which gave the regulator stronger powers to intervene in markets where major digital platforms hold entrenched positions.
Those powers were designed to move the UK beyond slow, case by case competition enforcement and towards a more active regime for companies with strategic market status. The regulator can apply conduct requirements, investigate platform practices, and seek changes where a designated company’s behaviour affects competition, business users, or consumers.
Dependence on a small group of technology platforms now cuts across retail, media, financial services, software, advertising, and cloud infrastructure. Search visibility, app store rules, cloud terms, payment restrictions, advertising data, and access to artificial intelligence infrastructure shape commercial outcomes far beyond the technology sector itself.
The CMA’s work on app store payment restrictions has already shown how platform rules can affect everyday routes to market for digital businesses. In that case, the question was whether payment restrictions imposed through app stores limited choice, increased costs, or weakened competition.
The next test is whether the UK’s digital markets framework can deliver visible changes quickly enough to alter the commercial behaviour of the largest technology companies. The CMA has gained the legal architecture to act earlier, but the effectiveness of the regime will depend on designation decisions, remedy design, enforcement capacity, and ministerial willingness to withstand pressure from US technology groups.
Smaller companies feel platform decisions in immediate commercial terms. A change to ranking systems can affect traffic overnight. A shift in app store terms can alter margins. Cloud pricing and egress fees influence data strategy. Advertising measurement changes can reduce visibility over customer acquisition. AI search adds another layer, with businesses increasingly dependent on how platforms summarise, rank, and recommend information.
The UK is also trying to position itself as a competitive home for digital innovation while maintaining regulatory independence. That balance is becoming harder as US technology companies increase capital spending on AI infrastructure, consolidate user data across services, and expand into payments, enterprise software, cloud security, and generative search.
Regulatory speed remains one of the hardest constraints. Competition investigations have historically taken years, by which time markets can change and commercial damage can become embedded. The DMCC framework was intended to shorten that cycle, although faster intervention still requires strong technical evidence, clear market definitions, and remedies that do not create unintended consequences for companies using the platforms.
AI has raised the stakes because platform control now reaches deeper into the discovery layer. Companies are not competing only for search rankings, app downloads, or ad impressions. They are also competing to be present, trusted, and accurately represented inside AI generated answers. Data access, content attribution, and ranking transparency have become core commercial concerns.
The governance pressures created by autonomous technology have already appeared in AI agents outrun enterprise governance controls, where systems were developing faster than many oversight structures. The same tension runs through the platform debate: digital systems are becoming more consequential to business operations before accountability structures have fully matured.
A tougher approach to major technology platforms would not only affect the companies under direct scrutiny. It would influence publishers seeking fair terms for content use, retailers managing marketplace visibility, developers subject to app store economics, software companies building on cloud infrastructure, and advertisers trying to measure performance across fragmented digital environments.
The digital markets regime will be judged less by its statutory design than by its practical effect. Companies will be watching whether the CMA can turn new powers into changes in conduct, transparency, and commercial access across markets where platform decisions increasingly determine who is seen, paid, ranked, and trusted.
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