Dixons Carphone has agreed to buy broadband price comparison site Simplifydigital for an undisclosed sum as it looks to become a one-stop shop for digital services.
Founded in 2007 by former Sky sales executive Charlie Ponsonby, Simplifydigital is the UK's biggest TV, broadband and phone switching service, sorting through 11,000 products to find the best deals.
Dixons Carphone said the deal will help further bolster its position in the so-called quad play market – mobile, landline, TV and broadband – and is expected to complete at the end of March.
It also includes the acquisition of an app called Voltz, which allows customers to switch energy providers on their phone.
Chief executive Seb James, said: "Our job is to help customers make great choices for both hardware and connectivity whether this be on the move or at home. People want great deals - and help in choosing and switching between a bewildering array of offers - and the combination of Simplifydigital and the unique reach we have through our shops and digital channels will make us the obvious place to go."
The Currys and PC World owner merged with Carphone Warehouse in 2014 to create a high street giant offering electronic products, services and support all under one roof.
Last summer, the company's Connected World Services division teamed up with American telecoms company Sprint to open 500 stores across the US. It is also closing over 100 UK stores as part of a significant overhaul of its estate in its home market and is investing £50m in refitting its existing stores.