Schedule C for Holding company

[KesklyHoldCo]

Do I need to file a separate schedule C for a smllc holding company with no income, just some Startup cost or can I combine the holding company and wholly owned operating companies on one schedule C? 

They are both disregarded for taxes and currently have no employees however, the operating company has to pay excise tax. 
* I also keep separate books for each entity. 

[Anonymous_]

You can combine the two provided the LLC does not have a different tax identification number.

[Carl]

Basically, you must file a separate SCH C for each EIN.