Thanks you all for the answers. You are very kind and helpful.
Unfortunately I can not get what I need 
I’m really ignorant ,sorry:(
I try to explain what I need…be patient
-CSV ORIGIN-
DC,COMPANY
server1,ITALY
server50,SPAIN
-SCRIPT-
$list = Import-Csv CSV_ORIGIN.csv
foreach ($entry in $list)
{
Get-ADUser -server $($entry.DC) -Filter * -Properties Name,Surname,CanonicalName,CN,Company,Description,DisplayName,DistinguishedName,
EmailAddress,Enabled,GivenName,Office,
SamAccountName,UserPrincipalName | export-csv -Append -notypeinformation c:\temp\PROJect_EXPORT_USER\ADusers.csv
}
-RESULT- (ADusers.csv)
“CanonicalName”,“CN”,“Company”,“Description”,“DisplayName”,“DistinguishedName”,
“EmailAddress”,“Enabled”,“GivenName”,“Name”,“ObjectClass”,
“ObjectGUID”,“Office”,“SamAccountName”,“SID”,“Surname”,“UserPrincipalName”
Here in the file ADusers.csv there is a list of users with properties obtained by Get-ADUser.
I do not write anything so as not to make reading difficult
-RESULT THAT I WANT-
“CanonicalName”,“CN”,“Company”,“Description”,“DisplayName”,“DistinguishedName”,
“EmailAddress”,“Enabled”,“GivenName”,“Name”,“ObjectClass”,
“ObjectGUID”,“Office”,“SamAccountName”,“SID”,“Surname”,
“UserPrincipalName”,“COMPANY”
For each line, I would like the field COMPANY obtained from the CSV Origin (ITALY,SPAIN etc…)
I hope I explained myself.
I thank everyone again for the time dedicated to me.
I really appreciate.
Andrea