
Simpson Thacher & Bartlett LLP has strong regulatory knowledge and experience of registering and taxing alternative funds like BREITs and private equity strategies funds. The group is strong on the transactional side, particularly increasingly when it comes to acting for business development companies in mergers and fund launches. Practice head Rajib Chanda counts prestigious private retail funds and asset managers among his client base. Other key clients are business development companies, an increasing area of focus for the group who Steven Grigoriou regularly assists. Well-known names such as BofA Merrill Lynch form part of the group’s significant client list. Kenneth Burdon in Boston further bolsters the group’s retail investment management expertise. Anne Choe and Neesa Patel Sood joined from Willkie Farr & Gallagher LLP in February 2025.
Legal 500 Editorial commentary
- Profile
Key clients
- Affiliated Managers Group
- Apollo Credit Management LLC
- Apollo Infrastructure Company (AIC)
- AQR Capital Management
- BC Partners
- Benefit Street Partners
- Blackstone Credit
- Blackstone Private Equity Strategies Fund (BXPE)
- Blackstone Real Estate Income Funds
- Blue Owl Capital
Work highlights
- Represented Blackstone in the launch of Blackstone Private Equity Strategies Fund (BXPE), a non-traded private equity fund that is broadly distributed in private placements to high net worth investors with at least $5 million in investments.
- Representated KKR in the launch of KKR Private Equity Conglomerate (KPEC), a non-traded holding company that makes controlled private equity investments that is broadly distributed in private placements to accredited investors and the launch of KKR Infrastructure Conglomerate (K-Infra).
- Representated Coller Capital in the formation and ongoing operation of its registered secondaries fund, Coller Secondaries Private Equity Opportunities Fund (“C-SPEF”).
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Rajib Chanda
Other key lawyers
David Blass; Ben Wells; Nathan Briggs; Steven Grigoriou; Ryan Brizek