DoorDash is offering $17 billion to buy Instacart to supercharge its grocery delivery business in what would be a big consolidation in grocery delivery. DoorDash said the Instacart brand name and app will remain, and Instacart shoppers can continue fulfilling…

The companies say the tie-up would combine DoorDash's global reach and expertise in logistics with Instacart's purpose-built technology and long relationships with grocers.

DoorDash is offering $17 billion to buy Instacart to supercharge its grocery delivery business in what would be a big consolidation in grocery delivery. DoorDash said the Instacart brand name and app will remain, and Instacart shoppers can continue fulfilling…