
Simpson Thacher & Bartlett LLP represents a diverse range of clients, from private and public companies to boards and audit committees, on government and internal investigations. Leveraging a deep bench of talented attorneys with a tested grasp on how to effectively handle investigations across North and South America, Asia and Europe. Their key team of lawyers includes Marc Berger, who specializes in digital asset and cybersecurity issues like ICOs, cyber threats, and cryptocurrency investigations. Nicholas Goldin represents companies in diverse industries, spanning travel, food service, insurance, and financial services. Jeffrey Knox focuses on investigations into false claims, market manipulation, accounting fraud, and FCPA violations. Martin Bell leverages his experience in representing companies, boards, and executives in government, as well as internal investigations and high-profile disputes. All attorneys mentioned are based in New York, with the exception of Knox, who practices in Washington DC. Clients in the asset management industry will benefit from the expertise of Adam Aderton , a former senior official with the SEC Enforcement Division, who has joined the firm to advise on regulatory and enforcement matters.
Legal 500 Editorial commentary
- Profile
Testimonials
Collated independently by Legal 500 research team.
‘Exceptional people who are well connected, smart, but also efficient. Top notch white collar practice.’
‘Mike Osnato and Marc Berger are the best for SEC work.’
Key clients
- AT&T
- Barclays
- Bumble
- JPMorgan
- Special Committee of Kraft Heinz
- Special Committee of the Board of WWE
- TransUnion
- Tyson Foods
- Vitol
Work highlights
- Represented Vitol in DOJ FCPA and CFTC Commodities Exchange Act matters
- Advised Bumble in first ever settlement with the New Jersey Attorney General under New Jersey’s online dating protection statute
- Represented TransUnion in a DOJ settlement under the False Claims Act and FIRREA regarding alleged misuse of regulatory data obtained from banking agencies
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Lynn Neuner; Jonathan Youngwood; Marc Berger; Nicholas Goldin; Jeffrey Knox
Other key lawyers
Martin Bell; John Terzaken; Joshua Levine; Michael Osnato