AT&T
Capella Hotels
PWC
PRG
Ourisman Automotive Group
auction.com
PNC
Patrice and Scott Brickman
Aetna
2018, 2017, 2017 Platinum, 2018 Platinum, 2016, 2016 Platinum, 2015 Platinum, 2015, 2014, 2014 Gold, 2013, 2013 Silver, 2011, 2011 Gold, 2019, 2020 GoldOlivia AugustPlatinum
United Technologies
National Integrated Health Associates
eBay
The Washington Post
Shell
MedStar Health
2016, 2016 Silver, 2017, 2017 Silver, 2018, 2018 Silver, 2015, 2015 Silver, 2014, 2014 Silver, 2011, 2019, 2020 Bronze, 2021 Bronze, 2021, 2011 SilverBronze
The J. Willard and Alice S. Marriott Foundation
Goldman Sachs