▁ad s ▁across ▁devices . ▁ ▁The ▁company ▁received ▁a ▁pat ent ▁for ▁its ▁" system ▁to ▁group ▁internet ▁devices ▁based ▁upon ▁device ▁usage " ▁in ▁ 2 0 1 6 ▁and ▁a ▁pat ent ▁for ▁" system ▁and ▁method ▁for ▁determ ining ▁related ▁digital ▁ident ities " ▁in ▁ 2 0 1 9 . ▁ ▁History ▁Kam ak sh i ▁S iv aram ak r ish nan , ▁a ▁former ▁Ad M ob ▁scient ist , ▁built ▁the ▁technology ▁that ▁allowed ▁her ▁to ▁pair ▁users ▁to ▁devices ▁in ▁late ▁ 2 0 1 0 ▁and ▁formed ▁Ad sym pt otic , ▁which ▁is ▁now ▁known ▁as ▁Draw bridge . ▁In ▁ 2 0 1 4 , ▁the ▁company ▁announced ▁support ▁for ▁video ▁ad s ▁and ▁updated ▁its ▁analyt ics ▁suite ▁to ▁give ▁mark eters ▁ins ights ▁on ▁multi - touch ▁att ribution ▁and ▁information ▁on ▁their ▁aud ien ces ▁across ▁devices . ▁ ▁In ▁ 2 0 1 6 , ▁the ▁company ▁was ▁ranked ▁# 5 4 ▁on ▁the ▁Del o itte ▁Fast ▁ 5 0 0 ▁North ▁America ▁list ▁and ▁was ▁listed ▁on ▁the ▁Inc . ▁ 5 0 0 0 ▁List ▁of ▁Fast est ▁G row ing ▁Comp an ies ▁in ▁America ▁for ▁the ▁second ▁consecutive ▁year . ▁ ▁In ▁ 2 0 1 7 , ▁the ▁company ▁was ▁ranked ▁# 2 4 ▁on ▁the ▁C N BC ▁Dis rupt or ▁ 5 0 ▁list , ▁and ▁named ▁one ▁of ▁Fort une ’ s ▁" 5 0 ▁Comp an ies