Topsort, whose API allows small businesses to simplify their ad campaigns, raised a $20M Series A led by Upload Ventures, bringing its total raised to $28.6M (Christine Hall/TechCrunch) Technology March 5, 2024 [ad_1] Christine Corridor / TechCrunch: Topsort, whose API permits small companies to simplify their advert campaigns, raised a $20M Sequence…