Identity verification - organisation

Know Your Business (KYB) verification is required for legal entities before you can deposit funds. This process typically takes 10-15 minutes to complete.

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Step 1: Country of residence

Select your company’s country of registration to ensure compliance with local data protection laws.

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Step 2: Find your company

1. Select France (or your country)
2. Enter your company name (e.g., “Byzantine Finance”)
3. Select your company from the results

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Step 3: Company information

Registration details are pre-filled:

• Company name
• Entity type (SAS, SARL, etc.)
• Registration number (SIREN/SIRET for French entities)

Physical address question:

• Select “Yes” if your operating address is the same as your registered address
• Select “No” if your physical office is different (you’ll enter it manually)

If no, you will need to manually fill the following fields:

• Address line
• City
• Post Code
• State

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Step 4: Business financials

• Primary currency: Select EUR or USD (this is your preferred display currency)
• Source of funds: Select the origin of your invested assets:
  • Business revenues or income from investments - For operating companies
  • Third party funds - For fund managers or intermediaries
  • Owner’s capital - For family office assets
  • Savings - For personal investment vehicles
• Estimated annual income: Select your range (business revenues or investment income)
• Expected monthly deposits/withdrawals: Estimate your transaction volume
• 25%+ ownership by legal entity:
  • Yes - If another company owns 25%+ of your entity
  • No - If individuals own 100% (most family offices)

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Step 5: Business activities

Business description: Provide a clear description of your company’s purpose. Industry: Select the closest match:

• For family offices: “Offices of other holding companies”
• For other structures: Choose your primary business sector

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Step 6: Company documents

Company details: Documents confirming the identity of the company. The following documents are accepted:

• Incorporation certificate
• Excerpt from a state company registry
• Articles & memorandom of association

Ownership structure: Documents confirming the identity of the company. The following documents are accepted:

• Shareholder registry or ownership chart
• Statement of information
• Trust agreement
• Partnership agreement

Source of funds: Documents confirming the identity of the company. The following documents are accepted:

• Audited financials / end-of-year balance sheet
• Bank / brokerage account statement
• Tax returns
• Invoices to clients proving nature of business (for operating companies)

(Optional) Representatives authorization: An optional document proving that the current user indeed has the power to make decisions for the organisation. The following documents are accepted:

• Power of attorney

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Step 7: Regulated partners agreement

You must acknowledge Byzantine’s service partners: ✅ Bridge Building Sp. Z.o.o. - Registered Virtual Asset Service Provider handling EUR/USD ↔ EURC/USDC conversions ✅ Keyrock FR - Provides risk and strategy curation for Byzantine Prime products

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Step 8: Ultimate beneficial owners (UBOs)

You must add:

1. UBOs (Ultimate Beneficial Owners): Individuals with 25%+ direct or indirect ownership
2. Representative/control persons: Anyone who can legally make decisions for the company (must include the account creator)

For each UBO, provide:

• Full name
• Email address
• Role (UBO or Representative)

Example:

• ❌ Wrong: “Holding Company A (25%)”
• ✅ Correct: “Jean Dupont (25% via Holding Company A)“

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Step 9: Invite all associated persons to complete an individual verification

All identified UBOs and representatives will need to complete a KYC process. You’ll find more information here: For individuals.

• Click “Verify now” if you are that person to start your KYC process immediately.
• Click “Send to email” to send this person an automated email inviting them to complete their KYC.

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Step 9: Wait for verification

Once all associated persons submit their KYC, the file is automatically submitted for review - no further action is needed from your end. What happens next: Byzantine’s compliance team reviews your information (typically 24-48 hours)

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Step 10: Account activation!

You’ll receive an email when your account is ready to use