The story
Founded by Michael Bloomberg in 2010.1
Private company
Willett Advisors
Logo: Willett Advisors, Public domain, via Wikimedia Commons4
Family office of Michael Bloomberg
Willett Advisors LLC (Willett) is an investment firm based in New York City that serves as the family office of Bloomberg L.P. owner and former mayor of New York City, Michael Bloomberg. It is currently managed by Quadrangle Group co-founder Steven Rattner.2 Wikipedia text CC BY-SA 4.0
Last updated Oct 20, 2026.
Overview
2010Founded1
- IndustryPortfolio management, financial services1
- HeadquartersNew York City1
- Websitewww.willettadvisors.com
- Legal formLimited Liability Company3
- LEI549300NLS2UP1LQ0XH673
- StatusActive3
- LEI statusIssued and current3
- Registered addressC/O Corporation Service Company, 19808 Wilmington, United States3
- Registered withDivision of Corporations, Department of State, 47976923
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Willett Advisors LLC (Willett) is an investment firm based in New York City that serves as the family office of Bloomberg L.P. owner and former mayor of New York City, Michael Bloomberg. It is currently managed by Quadrangle Group co-founder Steven Rattner.2
Leadership
Who has led Willett Advisors, and when. Pick a name to see everywhere that person has worked.
Chief executive
201520202025
- FounderMichael Bloomberg1
- Chief executive officerSteven Rattner 2010 to now1
- ChairSteven Rattner1
Timeline
Links
- Websitewww.willettadvisors.com1
- WikipediaWillett Advisors
- WikidataQ42393368
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataWillett Advisors on Wikidata
- 2WikipediaWillett Advisors on Wikipedia
- 3
- 4Wikimedia CommonsWillett Advisors logo by Willett Advisors, Public domain