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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:to="CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_periodStartLabel_labelfr" xlink:type="arc" />
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    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition" xlink:to="CashAndCashEquivalentsIfDifferentFromStatementOfFinancialPosition_periodEndLabel_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="NetCostOfFinancialDebt_label_labelfr" xml:lang="fr">Coût de l'endettement financier net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCostOfFinancialDebt" xlink:to="NetCostOfFinancialDebt_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ChangeInFinancialAssets_label_labelfr" xml:lang="fr">Variation des immobilisations financières</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ChangesInCashAndCashEquivalentsIfDifferentFromStatementOfFinancialPositionAbstract_label_labelfr" xml:lang="fr">Variation Trésorerie et équivalents de trésorerie si différents de l’état de la situation financière Abstract</link:label>
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    <link:loc xlink:type="locator" xlink:label="CumulatedDeferredTaxAssetsHistoricallyBookedInEquity" xlink:href="waveston-2025-03-31.xsd#wavestone_CumulatedDeferredTaxAssetsHistoricallyBookedInEquity" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="CumulatedDeferredTaxAssetsHistoricallyBookedInEquity_label_labelfr" xml:lang="fr">Cumul impôts différés actifs relatifs aux éléments comptabilisés dans les capitaux propres depuis l’origine </link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="EBIT_totalLabel_labelfr" xml:lang="fr">Résultat opérationnel courant</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="EBIT_label_labelfr" xml:lang="fr">Résultat opérationnel courant</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EBIT" xlink:to="EBIT_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="NetInterestsPaidOnLeaseLiabilities" xlink:href="waveston-2025-03-31.xsd#wavestone_NetInterestsPaidOnLeaseLiabilities" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="NetInterestsPaidOnLeaseLiabilities_label_labelfr" xml:lang="fr">Intérêts net versés sur dettes locatives</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetInterestsPaidOnLeaseLiabilities" xlink:to="NetInterestsPaidOnLeaseLiabilities_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ReservesAndConsolidatedIncome_label_labelfr" xml:lang="fr">Réserves et résultats consolidés</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="CostOfNetFinancialDebtIncludingInterestOnLeaseLiabilities_label_labelfr" xml:lang="fr">Cout de l'endettement financier net (y.c. intérêts sur dettes locatives)</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="OtherOperatingIncomeAndExpenses_label_labelfr" xml:lang="fr">Autres produits et charges opérationnels</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="RealEstateRightOfUseAmortizationIFRS16ForCurrentYear_label_labelfr" xml:lang="fr">Amortissement des droits d'utilisation immobiliers (IFRS 16) de l’exercice</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="NetDepreciationChargesAndProvisions_label_labelfr" xml:lang="fr">Dotations nettes aux amortissements et provisions (1)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetDepreciationChargesAndProvisions" xlink:to="NetDepreciationChargesAndProvisions_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="ReservesAndRetainedEarningsMember" xlink:href="waveston-2025-03-31.xsd#wavestone_ReservesAndRetainedEarningsMember" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ReservesAndRetainedEarningsMember_label_labelfr" xml:lang="fr">Réserves consolidées</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ReservesAndRetainedEarningsMember" xlink:to="ReservesAndRetainedEarningsMember_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="DepreciationChargesAndProvisions" xlink:href="waveston-2025-03-31.xsd#wavestone_DepreciationChargesAndProvisions" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="DepreciationChargesAndProvisions_label_labelfr" xml:lang="fr">Dotations nettes aux amortissements et aux provisions</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="DepreciationChargesAndProvisions" xlink:to="DepreciationChargesAndProvisions_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="AmountOfOwnSharesDefinitiveVesting" xlink:href="waveston-2025-03-31.xsd#wavestone_AmountOfOwnSharesDefinitiveVesting" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="AmountOfOwnSharesDefinitiveVesting_label_labelfr" xml:lang="fr">Montant des actions auto-détenues livrées</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmountOfOwnSharesDefinitiveVesting" xlink:to="AmountOfOwnSharesDefinitiveVesting_label_labelfr" xlink:type="arc" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/totalLabel" xlink:label="NetCostOfFinancialDebt_totalLabel_labelfr" xml:lang="fr">Coût de l'endettement financier net</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NetCostOfFinancialDebt" xlink:to="NetCostOfFinancialDebt_totalLabel_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="SaleAcquisitionByTheCompanyOfItsOwnShares" xlink:href="waveston-2025-03-31.xsd#wavestone_SaleAcquisitionByTheCompanyOfItsOwnShares" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="SaleAcquisitionByTheCompanyOfItsOwnShares_label_labelfr" xml:lang="fr">Cession (acquisition) par la société de ses propres titres (2)</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="SaleAcquisitionByTheCompanyOfItsOwnShares" xlink:to="SaleAcquisitionByTheCompanyOfItsOwnShares_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="GrossCostOfFinancialDebt" xlink:href="waveston-2025-03-31.xsd#wavestone_GrossCostOfFinancialDebt" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="GrossCostOfFinancialDebt_label_labelfr" xml:lang="fr">Coût de l'endettement financier brut</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="GrossCostOfFinancialDebt" xlink:to="GrossCostOfFinancialDebt_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="TaxAndSocialSecurityLiabilities" xlink:href="waveston-2025-03-31.xsd#wavestone_TaxAndSocialSecurityLiabilities" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="TaxAndSocialSecurityLiabilities_label_labelfr" xml:lang="fr">Dettes fiscales et sociales</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TaxAndSocialSecurityLiabilities" xlink:to="TaxAndSocialSecurityLiabilities_label_labelfr" xlink:type="arc" />
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="ProfitLossOfTheYearMember_label_labelfr" xml:lang="fr">Résultat de l'exercice</link:label>
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    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="PurchaseOfServicesForResale_label_labelfr" xml:lang="fr">Achats consommés</link:label>
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    <link:loc xlink:type="locator" xlink:label="AmortizationOfCustomerRelationshipIntangibleAssets" xlink:href="waveston-2025-03-31.xsd#wavestone_AmortizationOfCustomerRelationshipIntangibleAssets" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="AmortizationOfCustomerRelationshipIntangibleAssets_label_labelfr" xml:lang="fr">Amortissement relation clientèle</link:label>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AmortizationOfCustomerRelationshipIntangibleAssets" xlink:to="AmortizationOfCustomerRelationshipIntangibleAssets_label_labelfr" xlink:type="arc" />
    <link:loc xlink:type="locator" xlink:label="CustomerRelationshipsAmortizationForCurrentYear" xlink:href="waveston-2025-03-31.xsd#wavestone_CustomerRelationshipsAmortizationForCurrentYear" />
    <link:label xlink:type="resource" xlink:role="http://www.xbrl.org/2003/role/label" xlink:label="CustomerRelationshipsAmortizationForCurrentYear_label_labelfr" xml:lang="fr">Amortissement des relations clientèle de l’exercice</link:label>
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