← Back to PeopleJournalistJames da CostaAuthor at SubstackLinkedIn@jamdacWebsiteJames da Costa is an author on Substack who creates podcast content.1Mentions1Articles1OutletsCompanies CoveredAndreessen Horowitz1Ethos1General Catalyst1ArticlesMost recent firstMentioned InReferenced in coverageEthos $22.75M Series ASubstackpositiveMay 10, 2026“Co-authored article on Ethos Series A; previously worked at SoftBank on companies like Arm.”