Jonathan McCullagh
Spruce Street
Jonathan McCullagh is the Founder and Managing Partner of Spruce Street, a platform built specifically to support AI-native, AI-native services, and fintech companies complex strategic finance, capital allocation and reporting needs.
Background
Jonathan is an experienced finance and capital markets leader, and former enterprise SaaS founder/operator.
Jonathan has also led product previously, driven hiring across tech company functions, and is a strong communicator. He brings deep understanding of the data and AI stack, AI infra costs and financing structures, agentic systems, and vertical AI use cases for financial services, legal and regulatory compliance.
Prior to Spruce Street Jonathan founded API-first risktech company, Arcturus.io, and was a Managing Director and team head in HSBC's investment bank and brings 17+ years of experience spanning private and public capital markets.
His expertise includes leading multi-disciplinary teams, building the foundations of finance organizations, optimizing capital structures, positioning management teams for strategic events, and ensuring financial readiness for IPOs and PE-backed exits.
Capital markets & transactions
He has led the structuring of complex financings and served as financial advisor on transformational M&A transactions for global corporates and growth stage companies in the technology, industrial, telecoms, financial services and consumer sectors.
Jonathan has also structured specialty finance solutions for fintech companies, ecommerce marketplaces, and other rapidly growing businesses with financeable assets.
Global experience
He brings a global perspective and institutional networks from working in the Bay Area, New York, London and Hong Kong.
