About Uncle Louis

Built for teams who do serious international tax work.

Uncle Louis helps tax teams research faster, draft better, and stay current without stitching together five tools.

Classical courthouse columns representing Uncle Louis international tax advisory heritage

We did not start Uncle Louis because the world needed another generic AI tool. We started it because international tax teams still spend too much time searching, cross-checking, rewriting, and monitoring across disconnected systems. The work is complex enough already. The tooling should not make it worse.

So we are building software that fits the way tax teams actually work: source-backed research, structured drafting, current legislation, and a cleaner path from first question to final advice.

Our Team

Antony van Nieuwkoop

Founder

Founded Sovereign Partners, a financial advisory firm in The Hague specializing in international tax structuring, asset protection, and cross-border corporate planning. Brings hands-on experience in jurisdiction optimization and residency planning.

Max Schoon

Founder

Finance and technology entrepreneur. Built Doc2iXBRL, an AI platform that converts financial reports to regulatory-compliant iXBRL. Background in financial reporting, XBRL/ESEF compliance, and full-stack development.

Chirag Sheth

Advisory Board Member

Experienced international tax professional with over 12 years of experience at EY and KPMG. Specialized in international taxation, transfer pricing, and cross-border transactions. Qualified as a CPA (Australia), Chartered Accountant (India), and Chartered Tax Adviser (UK).