Retail Media Startup Symbiosys Wants to Help Brands Buy Targeted Ads Using Retailers’ Data

Symbiosys, the one-year-old startup backed by retail media veterans, wants a piece of retailers' growing ad businesses. After raising $9 million in a Series A round of funding in January, the firm is announcing its first partnerships, with DoorDash and Best Buy. The two retailers will test Symbiosys' technology, which lets advertisers buy and target...