Netherlands Authority for
Consumers and Markets

The Netherlands Authority for Consumers and Markets (ACM) ensures fair competition between businesses, and protects consumer interests.

Action center

Information for businesses

Energy

Tariffs, network operation costs, small-scale users’ rights, early-termination fees, connections, tariff changes as suppliers, monitors.
Consumer protection

Return periods, warranties, cancellation of services, informing about prices and business details, delivery, unfair business practices, online sales
Competition

Cartels
Digital economy

Trusted flaggers, out-of-court dispute settlement bodies and vetted researchers
Caribbean Netherlands

Toezicht op de post- en telecommarkt, tarieven elektriciteit, tarieven drinkwater
Accessibility

Accessibility of e-commerce services and electronic communications services

Latest news

ACM and civil-society organizations issue joint warning: beware of shady sellers of energy products

Publication News 02-11-2026

ACM has launched the awareness campaign ‘End that conversation. Start your own investigation’ to warn consumers against shady sellers of home batteries, heat pumps, and sustainability consulting services.
Blog Paul de Bijl: Empirical findings on mergers and innovation

Publication Blog 29-10-2026

In his latest blog, ACM’s Chief Economist Paul de Bijl discusses how market concentration relates to innovation.
ACM: Digital autonomy is on the agenda, but few energy suppliers switch cloud service providers

Publication News 28-10-2026

Dutch energy suppliers wish to strengthen their digital autonomy, but few companies actually switch cloud providers. They fear high costs and disruptions to their operations.
ACM decides to block acquisition of Unox by Zwanenberg

Publication News 27-10-2026

ACM has decided to block the acquisition of Unox by Zwanenberg. It would have resulted in one competitor gaining too strong a position in the markets for ambient sausages and wet soups. The acquisition would have led to more-expensive smoked sausages, boiled sausages, and ambient wet soups.

More news

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Is a firm not playing by the rules? Are, for example, your competitors concluding agreements regarding prices or customers? If so, please let us know. You can do this anonymously as well. Your tip-off can help us track down violations.

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About ACM

The Netherlands Authority for Consumers and Markets is an independent regulator. We are committed to ensuring that markets work well for people and businesses.
2026 ACM Agenda

The topics that ACM focuses on in 2026.