Simpson Thacher & Bartlett LLP
A law firm on the New York attorney register · most who list it give an office in New York
- On the register
- 1,308
- Registered, current or due
- 1,288
- Admitted
- 1957 to 2026
1,308 attorneys on the New York register file of Sep 29, 2026 list Simpson Thacher & Bartlett LLP or one of its other names as their employer; 1,288 (98%) are registered (currently, or due to re‑register), against 87.1% of all living registrants. They were admitted between 1957 and 2026 (median 2019), and 1,049 give an office in New York.
When its attorneys were admitted
| Decade | This firm | Every living registrant |
|---|---|---|
| 1950s | <1% | <1% |
| 1960s | <1% | 2% |
| 1970s | 1% | 6% |
| 1980s | 2% | 13% |
| 1990s | 7% | 17% |
| 2000s | 15% | 22% |
| 2010s | 27% | 24% |
| 2020s | 47% | 15% |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; employer spellings merged (methodology).
Where they studied
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; school spellings matched.
Where its attorneys have their office
| Office | Attorneys |
|---|---|
| New York, NY | 1,049 |
| Washington, DC | 65 |
| London | 48 |
| Hong Kong | 23 |
| Houston, TX | 21 |
| Palo Alto, CA | 19 |
Other names counted with this firm
The register gives each employer as the attorney typed it. These spellings, former names and merged firms are counted with Simpson Thacher & Bartlett LLP; a registrant who lists one of them may have registered before the firm took its current name, and the register does not say where anyone works today.
- “Simpson Thacher”: 20
- “Simpson Thacher & Barlett LLP”: 15
Attorneys who list Simpson Thacher & Bartlett LLP or one of its other names on the register, page 64 of 66
Currently registered attorneys first, most recently admitted first.
| Attorney | Admitted | Status |
|---|---|---|
| Katherine Hope Taylor | 2010 | Due to re‑register |
| Mengtao Yu | 2010 | Due to re‑register |
| Juan Manuel Naveira | 2008 | Due to re‑register |
| Jesse Daniel Stovin | 2008 | Due to re‑register |
| Helen Tsuikwan Tung | 2008 | Due to re‑register |
| Ying Zhang | 2008 | Suspended, delinquent |
| Bertie Helen Cheng | 2006 | Due to re‑register |
| Abram Jeremy Ellis | 2006 | Due to re‑register |
| Lauren King | 2006 | Due to re‑register |
| Mark Christopher Koh | 2006 | Suspended, delinquent |
| Sven G. Mickisch | 2006 | Due to re‑register |
| Jonathan S. Pall | 2006 | Due to re‑register |
| Kam Fai Siu | 2006 | Due to re‑register |
| Juanjuan Zheng | 2005 | Delinquent |
| Jonathan Adam Goldstein | 2004 | Due to re‑register |
| Michael Wayne Pierre | 2002 | Due to re‑register |
| Chi H. Shum | 2002 | Due to re‑register |
| Callistus Nze Udalor | 2001 | Suspended, delinquent |
| Jenny Lee Floyd | 2000 | Due to re‑register |
| Andrew Marc Kofsky | 2000 | Due to re‑register |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026.
Looking for a lawyer for a matter?
The register lists who is admitted and where their office is, not what kind of law anyone practises, so this page cannot suggest a lawyer for a problem. The New York State Bar Association’s Lawyer Referral Service matches people with lawyers by area of law; once you have a name, its record here shows whether the lawyer is registered.