Who is the EVP, Administration of Costco?

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Updated Data as of 2026-10-13

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Claudine Adamo has been the Executive Vice President, Administration of Costco since 2026 and reports to Ron Vachris. Claudine reached the role after 4 tracked posts, most recently Executive Vice President, Administration at Costco. She was executive vice president and chief operating officer of Merchandising from 2022 to March 2026, after leading non-foods buying as senior vice president from 2018 to 2022 and as vice president from 2013 to 2018. Claudine is one of 10 tracked leaders at the company.

Claudine Adamo profile

CA
Claudine Adamo
Executive Vice President, Administration, Costco
Executive vice president of Administration since March 2026

Claudine Adamo is executive vice president of Administration at Costco, a role she took in March 2026.

Reports to
Ron Vachris
Email
••••@costco.com

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Claudine Adamo career history

  • Executive Vice President, Administration, CostcoMarch 2026 to present
  • Executive Vice President, Chief Operating Officer - Merchandising, Costco2022 to March 2026
  • Senior Vice President, Non-Foods, Costco2018 to February 2022
  • Vice President, Non-Foods, Costco2013 to 2018

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Other leaders at Costco

LeaderEmailProfile
RVRon VachrisPresident and Chief Executive Officer ••••@costco.com Profile →
GMGary MillerchipExecutive Vice President and Chief Financial Officer ••••@costco.com Profile →
CFCaton FratesSenior Executive Vice President, Chief Operating Officer - Warehouse Operations, U.S. and Mexico ••••@costco.com Profile →
JPJavier PolitExecutive Vice President, Chief Information and Digital Officer ••••@costco.com Profile →
JSJohn SullivanExecutive Vice President, General Counsel and Corporate Secretary ••••@costco.com Profile →
SGSarah GeorgeExecutive Vice President, Chief Operating Officer - Merchandising ••••@costco.com Profile →
PRPierre RielExecutive Vice President, Chief Operating Officer, International Division ••••@costco.com Profile →
YRYoram RubanenkoExecutive Vice President, Chief Operating Officer - Eastern Division ••••@costco.com Profile →
TJTeresa JonesExecutive Vice President, Chief Operating Officer - Global Depots and Traffic ••••@costco.com Profile →

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More about Costco

FAQ

Frequently asked questions

Who is Claudine Adamo?

Claudine Adamo is the Executive Vice President, Administration of Costco (as of 2026-10-13). Executive vice president of Administration since March 2026. You can see their background and career history above.

What is Claudine Adamo's background?

Claudine Adamo is executive vice president of Administration at Costco, a role she took in March 2026. She was executive vice president and chief operating officer of Merchandising from 2022 to March 2026, after leading non-foods buying as senior vice president from 2018 to 2022 and as vice president from 2013 to 2018.

How can I contact Claudine Adamo at Costco?

You can find and verify Claudine Adamo's professional email and direct phone number with Derrick, from its web app or Google Sheets. Costco's addresses generally follow the flast@costco.com pattern, but that individual address is not verified here, so confirm it before reaching out.

Who does Claudine Adamo report to?

Claudine Adamo reports to Ron Vachris. See the full org chart on the Costco executives page.