The company was founded in 1961 and is among the top market leaders in the Iberian Peninsula.

Founded by Rui Nabeiro (1931-2023), its conglomerate includes interests in agribusiness, agriculture, real estate, hotels, and other businesses.

[1] Delta Cafés was founded by Rui Nabeiro in 1961 in the town of Campo Maior, Alentejo, in a small 50 square metres (540 sq ft) warehouse, which could only handle two 30 kilograms (66 lb) roasters and with the participation of only three workers.

[4] In 1998, the Nabeiro/Delta Cafés Group was restructured and gave rise to 22 companies organized into strategic areas, with turnover of approximately €160 million.

[5] Also in the 2007, Delta Cafés launched its own espresso products, Delta Q, based on a proprietary system of single-serving "capsules" containing ground coffee and rooibos, and specialized machines to brew espresso from the contents of the capsules in a similar way to that of Nestlé's Nespresso brand portfolio.