Simpson Thacher NYC law firm maps to Simpson Thacher & Bartlett LLP, a Lexington Avenue partnership closely associated with private equity fund formation, portfolio M&A, and capital markets for sponsors. Headcount and office footprint grow with market cycles—see stblaw.com for updates.
About this law practice
The firm’s lawyers are recurring counsel in buyout financings and public listings for sponsor-backed platforms, as reflected in financial press deal lists.
Readers comparing firms should rely on official bios, conflicts policies, and interviews—not directory abstracts.
Practice areas and services
High-level overview only. Availability, conflicts, and fees are confirmed with the firm.
- Private equity fund formation and sponsor transactions
- M&A, joint ventures, and carve-outs
- Capital markets and leveraged finance
- Executive compensation, benefits, and tax
- Litigation and real estate practices as published
Sources cited for this profile
We reviewed multiple independent, authoritative references when drafting this directory summary. It is not legal advice, nor a complete bibliography.
- Simpson Thacher & Bartlett LLP — official contact and New York pages (stblaw.com)
- SEC EDGAR — S-1 and merger proxies listing Simpson Thacher
- Private equity trade press — fund closings and deal counsel mentions
- New York attorney registration — professional standing context
- Legal 500 — private equity and M&A rankings
Profile verification
Last desk review: April 2026. Method: comparison of official firm websites, court-system attorney-registration context, and SEC or agency materials—not an on-site inspection. Re-verify phone, address, and admissions before retaining counsel.
Location & contact
- Address: 425 Lexington Avenue, New York, New York 10017, United States
- Phone: +1 212-455-2000
- Website: www.stblaw.com
This listing appears in the Professional Business Directory places index and on our home page.
Using this information
- Legal: Not legal advice; attorney advertising rules vary by jurisdiction.
- Directory: We do not guarantee accuracy, completeness, or timeliness.
Directory profile for orientation only. Verify all details with the firm before acting.