
- Profile
Testimonials
Collated independently by Legal 500 research team.
‘Penny Martin stands out for her practical and strategic advice that cuts straight to the issue.’
‘A unique boutique with all the talents in arbitration in one place. Ultra responsive, commercially minded and very good at listening to clients and managing expectations.’
‘Penny Martin is very responsive, efficient and thorough.’
‘An experienced team specialising in international arbitration.’
‘An excellent arbitration practice.’
‘Penny Martin is very responsive and provides excellent advice.’
‘Three Crowns is a premier international arbitration boutique. The key advantage that the firm has is, in addition to its stellar partners and depth of the firm's associate pool, its flexibility in pricing.’
‘Daryl Chew is highly reliable for complex and high-value disputes. He has the ability to cut through the noise and identify the core issues very quickly. He is also very commercially minded.’
Key clients
- PETRONAS
- Elliot Associates
- Trafigura
- TotalEnergies
- Sacyr
- Guardian Holdings
- BP
- Eni
- ExxonMobil
- Shell
Work highlights
- Representing Sacyr in a treaty claim against the Republic of Panama under the Spain-Panama BIT.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.

Practice head
Daryl Chew; Simon Elliot
Other key lawyers
Penny Martin