Bloomberg vs Ambani

Bloomberg L.P. and Reliance Industries.

The differences

Forbes puts Michael Bloomberg about $10.7B ahead of Mukesh Ambani.Forbes figures from 9 Oct 2026 and 15 Oct 2026.
Michael Bloomberg: founded it. Mukesh Ambani: inherited and grew it.
Michael Bloomberg is about 15 years older than Mukesh Ambani.
Michael Bloomberg has signed the Giving Pledge; Mukesh Ambani has not.
Michael Bloomberg is from United States; Mukesh Ambani is from India.

Put someone else on either side

Bloomberg

Ambani

Net worth, Forbes: $94.9BForbes, 9 Oct 2026; $84.2BForbes, 15 Oct 2026
Net worth, Bloomberg: Not stated; $80.4BBloomberg, 17 Oct 2026
Forbes rank: No. 20Real-Time list, 9 Oct 2026; No. 21Annual list, 1 Mar 2026
Billionaire since: Not stated; Not stated

How it started: Founded itFounded Bloomberg L.P. in 1981 after leaving Salomon Brothers; Forbes says he put in the seed funding; Inherited and grew itReliance was founded by his father in 1966; after his father's death in 2002 he and his brother Anil split the group, and he expanded Reliance into refining, telecom (Jio) and retail
Main source: Bloomberg L.P.; Reliance Industries stake held by the promoter groupBloomberg: 'The majority of Mukesh Ambani's wealth derives from a 42% stake in publicly traded Reliance Industries', counting holding companies, trusts and family members
Companies: Bloomberg L.P.Bloomberg L.P.: Founder and majority owner; Reliance IndustriesReliance Industries: Chairman and managing director
Biggest stake: Bloomberg L.P.88% owned; Reliance Industries0.12% owned

Born: 14 Feb 1942Boston, Massachusetts, United States; 19 Apr 1957Aden, Yemen
Country: United StatesLives in New York City, United States; IndiaLives in Mumbai, India
Education: Graduate degreeBS in electrical engineering, Johns Hopkins University; MBA, Harvard Business School (1966); Bachelor's degreeChemical engineering, Institute of Chemical Technology, Mumbai (University of Mumbai); started an MBA at Stanford University without finishing
Parents: Grew up in a middle-class home in Medford, Massachusetts; worked in a parking lot and took government loans to pay for Johns HopkinsParents' occupations not stated; Father Dhirubhai Ambani was a yarn trader who founded Reliance in 1966Mother's occupation not stated

Giving Pledge: Signed in 2010; Not a signer
Foundation: Bloomberg PhilanthropiesCovers his foundation, corporate and personal giving; Reliance FoundationSet up in 2010 for Reliance Industries' philanthropy; chaired by his wife Nita Ambani
Lifetime giving: $25.4BForbes, 31 Dec 2025. Forbes' estimate of lifetime giving through the end of 2025, counting only money given to charitable recipients; Not stated

Role now: OwnerFounder and majority owner of Bloomberg L.P.; founder of Bloomberg Philanthropies; UN Special Envoy on Climate Ambition and Solutions; Runs the companyChairman and managing director of Reliance Industries
Successor: Vlad Kliatchko, CEO since 2023 and chairNo ownership successor or family executive named in the cited sources; None named. His three children joined the Reliance board in 2023: Akash heads Jio (chairman of Reliance Jio Infocomm since 2022), Isha oversees retail and financial services, Anant works in the energy business
Public office: Mayor of New York City; UN Special Envoy on Cities and Climate Change; UN Special Envoy for Climate Action, later Special Envoy on Climate Ambition and Solutions; WHO Global Ambassador for Noncommunicable Diseases and Injuries2002-2013; 2014; 2018-present; 2016-present; Member, Prime Minister's Council on Trade and Industry (Government of India)Years not stated
Legal record: None found; 2021: Securities and Exchange Board of India (SEBI)SEBI fined him 150 million rupees over 2007 trades in Reliance Petroleum shares that it called fraudulent; the Securities Appellate Tribunal quashed the fine in 2023 and the Supreme Court dismissed SEBI's appeal in 2024.