Mason Hayes & Curran is a business law firm in San Francisco, CA focused on helping West Coast and Silicon Valley companies navigate Irish and EU regulation with confidence. From corporate structuring and commercial contracts to employment law and benefits, our team delivers practical, business-focused legal solutions. As a corporate legal firm with deep experience in technology, life sciences, energy, and financial services, we support US multinationals expanding into Ireland and Irish companies investing in the US. Clients value our clear communication, responsive service, and ability to translate complex law into straightforward options. Whether you need advice on banking and finance, real estate, construction law, tax, or business immigration, Mason Hayes & Curran provides integrated support across borders to keep your international strategy moving forward.