You should consider several AdRoll competitors. Google Ads is a top competitor. Google Ads offers extensive reach and targeting options. Facebook Ads also competes. It provides strong social media ad targeting. Another competitor is LinkedIn Ads. LinkedIn focuses on B2B advertising. You can also look at Criteo. Criteo specializes in retargeting and dynamic ads. You might also consider Taboola. Taboola helps with content discovery and advertising. Another option is the TradeDesk. TradeDesk offers programmatic advertising across multiple platforms. Finally, you could check out Bing Ads. Bing Ads allows you to reach a different audience.