An Important Rule Often Neglected 22

A Code of Practice for Muslims in the West: Work and Investment » General Rules
(page 146 and pg 150 in the printed copies)
Fatawa of Ayatullah al Uzama Syed Ali al-Husaini Seestani

249: It is not permissible for a Muslim to buy products of the countries that are in a state of war with Islam and Muslims, for example, Israel. (See the question-answer section below.)

265: Question: Is it permissible to buy goods from companies that allocate part of their profits to supporting Israel?
Answer: We do not allow that.

Listing the brands: http://www.inminds.co.uk/boycott-brands.html