A two story 300,000 square foot Office / Call Center for Rackspace Headquarters. Big State Electric, Ltd, provided (2) 3000 Amp Services, (1) 4000 Amp Service and Service Upgrade for (1) existing 1600 Amp Emergency Service. Dense branch lighting, branch power, under-floor HVAC power, sound masking, grounding and fire alarm systems were included. All work was done around critical operations in an occupied and functioning facility. Operations were successfully completed with minimal down time and all outages were formally planned with Facilities Personnel.