The following is a listing of VESP Platinum Level members: 

APS *

Ocotillo Power Plant — Joined February 2015
Redhawk Power Plant — Joined July 2016
West Phoenix Power Plant — Joined December 2015
Yucca Power Plant — Joined August 2017

Fairmont Scottsdale Princess

Joined August 2019

Freeport-McMoRan 

Morenci Inc. — Joined May 2018
Bagdad Inc. — Joined May 2018
Miami Inc. — Joined May 2018
Sierrita Inc. * — Joined September 2017
Safford Inc. * — Joined August 2016

Honeywell Aerospace *

Deer Valley — Joined July 2015
Glendale — Joined July 2015
Kingman — Joined July 2015
Phoenix Engines — Joined July 2015
Phoenix Sky Harbor — Joined July 2015 
Tempe — Joined July 2015

Intel Corporation — Ocotillo Campus *

Joined February 2016

PING Inc. *

Joined February 2015; Renewed December 2018

* These facilities have earned the "Superior Compliance History" designation.