Before joining Spiegel & Utrera, he served as a cross-border associate attorney in Toronto, Canada, and later as a venture capital and technology associate at an AmLaw 100 firm, where he negotiated complex investments in venture capital and M&A, representing serial entrepreneurs and investors alike in high-value cross-border transactions.
Mr. Castillo is highly recognized for his expert guidance to companies navigating the complex landscape of corporate growth and expansion. Between structuring founders' corporate planning, investment rounds, and exits/M&A, he offers tailored solutions for both domestic and international clients at every phase of growth.