ELK GROVE, Calif. - ALLDATA LLC announced it has entered into a national account agreement with the automobile insurance company Esurance, the first such arrangement between ALLDATA and an auto insurer. Under the agreement, Esurance estimators will have access to vehicle manufacturers' repair information in ALLDATA Collision. Additionally, collision repair shops in the Esurance Direct Repair Program will receive special incentives to purchase an ALLDATA Collision subscription.