Since 2013, Korea's first and most specialized expert network — connecting global decision-makers with the insights that only true local depth can deliver.
Nathan Research Group was founded in 2013 as Korea’s first locally established expert network service. At a time when global ENS firms operated Korea coverage remotely from offices in Hong Kong, Shanghai, or Tokyo, we chose to build from the ground up — in Seoul, at the heart of Asia’s fourth-largest economy.
Our conviction was simple: Korea’s complex corporate landscape — its chaebol structures, rapidly evolving technology sectors, and unique regulatory environment — demands a level of local depth that cannot be replicated from a distance.
Over more than a decade, we have built Korea’s most specialized expert network, serving global private equity firms, hedge funds, management consultancies, investment banks, and multinational corporations that need actionable, ground-level insights on the Korean market.
We are not the biggest network. We are the deepest — and for Korea, depth is everything.

Our mission is to eliminate the information asymmetry that exists between global decision-makers and the Korean market. We achieve this by connecting our clients with meticulously verified Korean industry experts who deliver first-hand, non-digitized insights that no database, report, or AI model can replicate.
We don’t try to cover every market on earth. We go deeper into Korea than anyone else — because your most critical decisions deserve specialists, not generalists.
Every interaction is governed by our rigorous compliance framework. We protect our clients, our experts, and the integrity of every insight that flows through our network.
Our team doesn’t just process requests — we understand your investment thesis, your strategic context, and your timeline. Then we deliver precisely matched experts who move your decision forward.
We are Korean. We think in Korean, read Korean filings, navigate Korean business culture natively, and maintain relationships that only years of local presence can build.

Nathan Choi is the Founder & CEO of Nathan Research Group, Korea’s first locally established expert network service. He founded the firm in Seoul in 2013 with a clear conviction: that Korea’s complex corporate landscape, rapidly evolving industries, and distinctive regulatory environment cannot be understood from a distance. At a time when much of Korea coverage was still managed remotely from regional hubs, Nathan set out to build a firm grounded in native market understanding, trusted local relationships, and rigorous execution.
With over 18 years of experience across financial services and research, he has built Nathan Research Group into a trusted partner to global private equity firms, hedge funds, management consultancies, investment banks, and multinational corporations seeking high-conviction insight on Korea. Under his leadership, the firm has developed a compliance-first model that combines meticulous expert vetting, sector-specific matching, and deep analysis of Korean public filings to deliver insight with depth, speed, and integrity.
He continues to lead the firm with a singular focus: helping global decision-makers navigate Korea with greater clarity, confidence, and local depth.