Built by people who needed it too.
I built the first version of Gylder for myself. My money was spread across a current account, a broker, a crypto exchange and a mortgage, plus a spreadsheet I updated maybe once a quarter and never quite trusted. Every part was knowable. The whole was a fog.
I wanted one honest number, kept current, without the maintenance. So I built it, and then it turned out other people wanted the same thing.
Tom Goossens
Who's behind Gylder
Gylder is built from Rotterdam by three brothers.
- Tom is a quantitative trader with professional experience in traditional and crypto markets, and looks after how Gylder values and analyses what you hold.
- Stijn is an attorney-at-law, and keeps us honest on privacy, data and the fine print.
- Just is a tech entrepreneur, and drives how the product is built.
We are a small team on purpose. It keeps us close to the product, and to the people who rely on it.
What we stand by
- Encrypted before it's stored.
- Every balance and figure is encrypted with AES-256-GCM using a key unique to you. We cannot read your balances.
- Read-only by nature.
- Connections can only ever read. Gylder never moves money.
- Kept in Europe.
- All data lives in Frankfurt, Germany. GDPR-compliant by design.
- Paid for by subscriptions.
- Not ads, not data brokers. You are the customer, not the product.
Where it's going
Direct bank connections through regulated Open Banking arrive later in 2026, and a Business tier for tracking company holdings alongside personal wealth is on the way. We would rather ship something solid than promise something vague.
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