Facility Services › If you are serving beverages, you will need bartenders. Image 1 of 1 If you are serving beverages, you will need bartenders. from $140.00 After you select the number of guests, then select the quantity which is equal to the length of the event in hours. Number of Guests: Select Number of Guests Up to 30 Guests (2 Bartenders) 31 to 50 Guests (3 Bartenders with 1 Bar)) 51 to 70 Guests (4 Bartenders with 2 Bars)) 71 to 100 Guests (5 Bartenders with 2 Bars) 101 to 150 Guests (6 Bartenders with 3 Bars) 151 to 200 Guests (7 Bartenders with 3 Bars) Quantity: Add To Cart Added! After you select the number of guests, then select the quantity which is equal to the length of the event in hours.