Billion-Dollar Deals and Advising on Princess Diana’s Wealth (ft. Nigel O’Sullivan)

📢 In this episode of Dees Talk, I sit down with Nigel O’Sullivan—investment banker, former Goldman Sachs partner, and one-time financial advisor to Princess Diana. Nigel pulls back the curtain on the finance world, sharing jaw-dropping stories about billion-dollar deals, and the intense work ethic involved.

He opens up about the pressure of staying in the closet at Goldman Sachs, how being gay affected his career, and the personal tragedy of losing his long-term partner while working abroad—without being able to grieve openly. This is a must-watch episode for anyone interested in finance, resilience, and breaking barriers.

🔹 Topics We Cover in This Episode:
00:00 - Welcome to Dees Talk with Nigel O’Sullivan
00:49 - Nigel’s Family History & Growing Up in a Catholic-Protestant Household
04:25 - Caring for Elderly Parents: The Financial Reality of Aging
07:24 - How a Competitive Childhood Led Nigel to Finance
11:41 - How Princess Diana Chose Nigel to Manage Her Wealth 👑
17:44 - Diana’s Secret Investment Meetings & Private Jokes 😂
20:00 - What People Misunderstood About Diana’s Intelligence
24:45 - What It Takes to Become a Partner at Goldman Sachs 💼
26:31 - Inside Goldman Sachs’ Billion-Dollar Deals 💰
30:30 - The Cutthroat Culture of Investment Banking
34:03 - Why Nigel Left Goldman Sachs After 17 Years
36:19 - Is Remote Work Killing Productivity?
39:11 - Nigel sets up Mayfair Capital, his own Investment Bank
41:13 - The $100 Billion Energy Grid Investment Opportunity ⚡
45:00 - Nigel’s arranged marriage and surrogacy deal
46:06 - Nigel’s Childhood Trauma & Its Impact on His Life 💔
49:07 - Diversity in Finance: Then vs. Now
50:29 - How Discrimination in Finance Kept Gay Professionals from Succeeding 🌈
56:28 - The Personal Tragedy He Kept Secret for 33 Years 💔
1:02:56 - The Tragedy I Had to Keep Secret: Losing My Partner While Traveling
1:05:44 - The Secret Marriage That Cost Him Millions
1:09:57 - Insisting on pre-nup agreements for the clients of Mayfair Capital
1:12:05 - Exodus of wealthy clients leaving UK for Monte Carlo
1:12:55 - The Battle for Manchester United & The Glazers’ Strategy
1:18:18 - Bitcoin to $1 Million? The Future of Crypto 🚀
1:27:02 Trump, Elon Musk & Political Power Moves 🏛️

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📌 Nigel's company, Mayfair Capital:
🌎 Website: www.mayfair-capital.co.uk