Ambitious companies put their cash to work with Byzantine.

See how founders, finance teams, and investors earn while maintaining visibility and control.
Featured customer story
ZKNOX x Byzantine
Nicolas Bacca, Founder of ZKNOX, Co-founder of Ledger

"For me Byzantine is the best risk-adjusted return on the market today."

Real customer impact, every day.

Our customers earn millions and control billions — all while saving millions of hours per year.
Withdraw in under a minute

100%

Move money in minutes
More from your idle cash

5.2%

Average annualized yield
Liquidity without limits

$1T+

Across global lending markets

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Super Capital x Byzantine
Thibaut Gimenez, Co-founder, Super Capital

The key point is really security. Then yield. And the third key point is availability, visibility, and user experience.

Read the case study

Get more from every euro.

Learn how our platform can increase the strategic impact of your finance team and future-proof your company.
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Investment dashboard showing $5,030,007 balance, 8.25% APY, and earnings of $156,234 in last 30 days.

Double T-Bills.
Institutionally secured.

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Investing in crypto-assets involves risks including total loss of capital. Past returns do not guarantee future results. Returns are variable and not guaranteed. Byzantine Finance SAS provides technical infrastructure; it is not a financial intermediary. Strategy curated by Keyrock Asset Management (AMF-regulated). Insurance covers technical risks only, not market losses.

Double T-Bills.
Same Safety.

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© 2026 Byzantine
Legal Notice
Terms & Conditions
Privacy Policy
Cookie Policy
Manage Cookies
Byzantine Finance SAS (”Byzantine Finance”) is a simplified joint-stock company (SAS) registered with the Nanterre Trade Register (SIREN: 929 169 217) and headquartered at 120 Rue Jean Jaures, 92300 Levallois-Perret, France.
Byzantine Finance is a technology infrastructure provider and does not operate as a bank, financial institution, regulated intermediary, or crypto-asset custodian. It does not hold client assets nor provide custody or transaction execution. The infrastructure offers technical tools allowing users, under their control, to interact with decentralized finance protocols and regulated third-party partners via self-hosted or third-party wallets, without Byzantine Finance intervening in or controlling assets or transactions.
Byzantine Finance partners with Bridge Building Sp. Z.o.o. (KRS: 0001039515) (“Bridge”) to enable users to conduct certain stablecoin transactions. Byzantine Finance does not make transactions on behalf of users. Applicable services are provided to users directly by Bridge, in accordance with https://bridge.xyz/legal.
Any balance information denominated in fiat currency is for informational purposes only.
Byzantine Finance is not a stablecoin issuer, does not make any promise (and does not have any obligation) to redeem stablecoins.
Byzantine Finance does not hold any balance on behalf of its users and does not pay interest on digital asset balances.
See our Terms & Conditions for more information.
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