Brexit: The tech world reacts to UK's withdrawal from EU - CNET

Rival O2 expressed disappointment. "We believe that large businesses like ours would have been stronger remaining in the EU," said a company spokesman. "Whatever happens next we will continue to fiercely compete in our market, innovate and deliver for our customers."

Vodafone and Virgin Media were both keen to reassure customers that they'd continue to receive company support, and neither firm predicted any short-term impact on their UK businesses.

The EU is working toward eliminating roaming fees across the continent by June 2017, and there's a possibility that the UK could lose out on this benefit, said Luca Schiavoni, senior analyst at Ovum. "UK operators will no longer be subject to the EC's roaming regulation," he said.

This is not a given, though. The networks have been trying to implement these rules for several years and will want to remain competitive in the market.

Data-protection regulations, which give inteet users control over what happens to their personal information, were drawn up by the EU, but they may not disintegrate when the UK is no longer a member. For now the regulations are "the law of the land," said a representative from the Information Commissioner's Office.

"If the UK is not part of the EU, then upcoming EU reforms to data-protection law would not directly apply to the UK," said the rep, who added, however, that the UK's standards would have to be "equivalent" to Europe's in order for the two to trade.

Stoicism rules

The positive attitude of the UK mobile networks is echoed by the UK's startup scene, which is the strongest in Europe. Many high-profile tech entrepreneurs are taking the stoic approach.

"I voted #Remain -- but I also believe that Britain will always be open, creative & entrepreneurial. Let's ensure that happens. #EUref," tweeted Rohan Silva, co-founder of tech accelerator Second Home and prominent advocate of the London tech scene. His post was retweeted by Baroness Martha Lane Fox, founder of LastMinute.com.

Not everyone shared their optimism. A number of the UK's most successful startups were adamantly against leaving Europe. TransferWise co-founder Taavet Hinrikus, who was staunchly in favor of remaining in the EU, told The Guardian that now "Headquartering elsewhere is a possibility."

Due to the UK being the financial capital of Europe, many money- and payment-based tech startups like TransferWise are based in London -- particularly around Silicon Roundabout. There are some that believe this sector could be hard hit by the outcome.

James Dyson was perhaps the lone figure from the British tech scene supporting Brexit, but a spokeswoman for his company, which makes vacuum cleaners and hand air-dryers, said Friday that the firm would not be "issuing any Idea at the moment."