Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE phone (Company_name VARCHAR)

### Question ###
List the name of the company that produced more than one phone model.

### Accurate SQL ###

SELECT Company_name FROM phone GROUP BY Company_name HAVING COUNT(*) > 1