We built Portfolwright because no platform should spend eight months on exchange plumbing
In early 2022, Christina Bauer was engineering lead at a Vienna-based retail investment broker. The team burned eight months getting Euronext Paris and Deutsche Börse Xetra connections stable — two exchanges, no tax logic, no MiFID II records — before they could write a line of product code. She left to build the layer that should have already existed.
The infrastructure layer between your platform and European markets
The European retail investment market is fragmented in ways that are genuinely hard. 14 exchanges with different order protocols — FIX/4.4, proprietary REST, ITCH feed variants. Five dividend jurisdictions with different withholding rates and reclaim procedures. ISA, PEA, and Depot wrappers with different tax methods mandated by law. MiFID II Article 25 best-execution records required on every order leg, retained for five years.
Every retail investment platform that wants to offer tax-optimized rebalancing to European customers faces the same 18–24 month engineering problem. We solved it once. Portfolwright is that solution as an API.
We are not a full order management system. We are not a custodian. We are the rebalancing and tax-optimization layer that sits between your platform and the exchanges — the piece that is genuinely hard to build and genuinely expensive to maintain as market structure evolves.
Founded in Vienna, 2022. Bootstrapped. Entirely focused on one problem.
How we work
Precision over breadth
We build one thing and build it correctly. 14 exchanges, not 40. Every connection is production-quality or it doesn’t ship. We don’t chase feature count.
Regulatory reality first
Financial infrastructure has to work inside the real regulatory environment. MiFID II, GDPR, local tax law — we treat these as requirements, not obstacles. Platforms can’t afford an infrastructure provider that gets compliance wrong.
Engineer to engineer honesty
Our customers are CTOs and engineering leads. We talk to them like engineers, not like a marketing deck. That means honest integration timelines, documented limitations, and no surprise behavior in production.
The people behind Portfolwright
Christina Bauer
CEO & Co-Founder
Engineering lead at a Vienna-based retail broker 2019–2022. Spent eight months on exchange connectivity before founding Portfolwright.
Jonas Müller
CTO & Co-Founder
Systems engineer with 12 years in exchange connectivity and financial messaging protocols.
Amara Osei
Head of Partnerships
Previously at a European neobank. Understands what platform CTOs need from infrastructure vendors.