Marks and Spencer has topped the first Business in the Community Corporate Responsibility Index.
The 122 companies participating were ranked in four key impact areas ­ environment, marketplace, workplace and community.
Sainsbury, Safeway, Tesco and Unilever also feature in the top 20, but BITC is keeping all scores secret so as not to discourage companies taking part.
M&S chairman Luc Vandevelde said: "CSR is one of our fundamental strengths, it runs through our DNA."

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