A British digital policy campaigner has accused major technology companies of what he described as “sociopathic greed” after becoming the subject of U.S. visa restrictions introduced under the Trump administration, a move he says is retaliation for his advocacy on online safety and platform accountability.

Imran Ahmed, the founder and chief executive of the Centre for Countering Digital Hate, said the measures followed sustained lobbying by large technology firms opposed to tighter oversight of social media and artificial intelligence systems.

The U.S. government has stated that the visa actions were taken on national interest grounds, arguing that certain foreign activists have sought to pressure American companies in ways that could undermine free expression, a characterisation Ahmed disputes.

He maintains that his work focuses on countering online extremism, antisemitism and harmful misinformation, and that engagement with policymakers across multiple administrations has been transparent and lawful.

Ahmed has launched a legal challenge in U.S. courts contesting the restrictions, with a judge temporarily blocking any move to detain or remove him while the case proceeds.

In public remarks, he argued that dominant technology firms use financial power and political access to resist democratic regulation, framing the dispute as a broader test of whether governments can hold platforms accountable for social harms.

U.S. officials have rejected claims of political motivation, emphasising that immigration decisions fall within executive authority and are subject to established legal processes.

The case has drawn attention in the United Kingdom and Europe, where debates continue over regulating global technology companies while balancing free speech, innovation and public safety.