> The Schwarz Group covers the entire value chain of the food trade like no other trading company, from production to sales to materials management. Digitalization and its pressure to change are noticeable in all business areas. To continue to successfully serve rising customer needs, new digital business models must be iterated even faster – and this while the data and system infrastructure becomes increasingly complex. As the number 1 in the European retail business, the Schwarz Group knows that those who do not digitize will lose market share in the long term.

Lidl are part of the Schwarz Group.

https://en.wikipedia.org/wiki/Schwarz_Gruppe is the parent of Lidl. And the Schwarz IT business group runs StackIT. There is also Schwarz Mobility for fleet management of company cars. I don't think it's meant to be associated with the Lidl brand.

"STACKIT is the digital brand of Schwarz IT and therefore part of the IT organisation of one of the world’s largest retail groups. The Schwarz Group consists of the well-known brands Lidl and Kaufland, as well as Schwarz Produktion and waste and recycling management companies."

it says so at the bottom of the page:

"The Schwarz Group consists of the well-known brands Lidl and Kaufland, as well as Schwarz Produktion and waste and recycling management companies."