Максим Тимофеев

public function getUser()
    {
        return $this->hasOne(User::className(),['id'=>'user_id']);
    }

public function getUserOrg()
    {
        return $this->hasOne(UserOrg::className(),['org'=>'id']);
    }

$service = Service::findOne($id);
// можно так, меньше запросов к бд: 
// $service = Service::find()->with(['User','UserOrg'])->where(['id'=>$id])->one();
echo $service->user->username;
echo $servise->user->userOrg->name;

<h3 class="art-logoslovo">городской <span>автовыкуп</span></h3>