Nectaris a loyalty card scheme in the United Kingdom run by Nectar 360 Ltd, a company wholly owned by Sainsbury's. The scheme is the largest in the United Kingdom, and comprises a number of partner companies including Sainsbury's, Esso, eBay and British Airways.
It launched in 2002 with initially four partner companies, and by 2010 had grown to include over 14 companies and over 400 online retailers. Participating companies cover sectors including travel, retail, finance and newspapers.
The scheme was established by Loyalty Management Group, replacing the existing schemes of three of the four launch companies. Nectar was purchased by the Canadian Groupe Aeroplan (now Aimia) in 2007, and purchased by Sainsbury's in 2018.
