Wall's is a British ice cream and frozen dessert brand owned by the Anglo-Dutch food and personal care conglomerate Unilever.

Originating as an independent food brand in England, Wall's is now part of the Heartbrand global frozen dessert subsidiary of Unilever, used in Australia, China, Hong Kong, Europe, Indonesia, India, Japan, Malaysia, Mauritius, New Zealand, the Philippines, Qatar, Saudi Arabia, Pakistan, Singapore, Thailand, the United Arab Emirates and Vietnam.

Unilever also uses a merged brand called Kwality Wall's in South Asia.

Wall's was founded in 1786 by Richard Wall, when he opened a butcher's stall in St James’s Market, London. In the 1900s the business was led by Richard's grandson Thomas Wall II.

Every year the company had to lay off staff in the summer as demand for its sausages, pies and meat fell, so in 1913 Thomas Wall II conceived the idea of making ice cream in the summer to avoid those lay-offs; the First World War meant that his idea was not implemented until 1922. 

Following his retirement in 1920, Thomas Wall II created his Trust for the “encouragement and assistance of educational work and social service”. Today, the Trust continues to assist in these areas by providing grants to individuals and organisations. 

According to en.wikipedia