Simpson Thacher & Bartlett LLP
High Net Worth Guide 2025

About
Founded in 1884, Simpson Thacher & Bartlett LLP is a global firm with resources to meet each of our clients' needs, including our high net worth individual clients. With a team of more than 1,500 lawyers operating out of 13 offices worldwide, the Firm provides coordinated legal advice and transaction capability to clients around the globe, regardless of office location and practice area. Simpson Thacher's Family Office and Personal Planning Practices, amongst others, provide key legal counsel to our high net worth individual clients.
Simpson Thacher's Family Office Practice provides counsel to single- and multi-family offices throughout the United States and globally. Our breadth and depth of experience across corporate, regulatory, tax and litigation practices allows us to provide a single source of best-in-case advise. We provide our family office clients a holistic approach, as they face often complex and unique legal issues, and a multidisciplinary suite of family office wrap around services tailored to fit our clients' diverse needs.
Our Family Office Practice counsels clients in a variety of matters, acing as trusted advisors, anticipating our clients' questions and, when necessary, collaborating with a family office's accountants, investment advisors and any other advisors. We help our family office clients navigate both the legal and non-legal issues that may arise in all types of transactions. Simpson Thacher understands family offices' priorities and are mindful of risk mitigation, reputational impact and personal wellbeing of our clients.
Our suite of family office services at formation includes entity formation and maintenance, regulatory and compliance, personal and tax planning, employment, benefits and labor. Our suite of family office services for development of capital and ongoing operations includes, investment vehicle formation and advising, M&A, fiduciary and corporate governance, charitable planning, philanthropy and passion projects, securities and credit transactions, real estate and dispute resolution.
Simpson Thacher's Personal Planning Practice offers a combination of the careful, discreet attention of a family attorney with the financial acumen of a top-tier corporate law firm. Advising across the entire spectrum of personal planning matters, our dedicated team provides personalized, commercial and value-added advice, including: succession planning and reorganization of family businesses; planning with liquid and special assets; gift, estate and generation-skipping transfer taxes; estate and trust administration; charitable transfers; wealth preservation across generations; multijurisdictional planning for our global client base and intergenerational representation of prominent real estate families.
Simpson Thacher's Personal Planning Practice respects and closely guards the privacy of our clients, many of whom are well known nationally and internationally. Our clients include, among others: Fortune 500 CEOs, media personalities, leaders of major international family-owned companies, dynastic real estate families, prominent political figures, multiple generations of important American families, icons of the financial industry, individuals and institutions serving as executors and trustees of large estates and trusts and directors of private foundations and private companies.
Ranked Offices
Provided by Simpson Thacher & Bartlett LLP
- New York425 Lexington Avenue , New York, New York, USA, NY 10017-3954
- Web: www.simpsonthacher.com
- Tel: +1 212 455 2000
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