A company and its directors should act in the best interest of its shareholders. So if Sainsbury's or any other company believes there is a significant advantage or disadvantage to the UK being in/out of Europe it should be entitled to do so ( and fund the relevant campaign). Lets hope both sides of this debate take a more enlightened approach that UKIP did here!
Anti-EU campaigners are warning companies not to weigh into the referendum debate, after Sainsbury’s found itself the target of angry calls from people who mistakenly believed it was funding the Yes campaign. The supermarket confirmed on Tuesday that it had fielded calls from supporters of the UK Independence party upset at what they believed was the company’s decision to donate to the pro-EU cause. The calls came after Steven Woolfe, the party’s financial affairs spokesman, tweeted a message reading: “Today Sainsbury’s announced that they will financially back the Yes campaign. Like me, if you disagree with this decision, please put pressure on Sainsbury’s today by calling [Sainsbury’s customer care number].”