diff --git a/apps/carrier-connector/internal/whitelabel/service.go b/apps/carrier-connector/internal/whitelabel/service.go
new file mode 100644
index 0000000..83206d1
--- /dev/null
+++ b/apps/carrier-connector/internal/whitelabel/service.go
@@ -0,0 +1,99 @@
+package whitelabel
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/sirupsen/logrus"
+	"gorm.io/gorm"
+)
+
+// Service provides whitelabel management operations
+type Service struct {
+	db     *gorm.DB
+	logger *logrus.Logger
+}
+
+// NewService creates a new whitelabel service
+func NewService(db *gorm.DB, logger *logrus.Logger) *Service {
+	return &Service{db: db, logger: logger}
+}
+
+// CreateBranding creates a new branding configuration
+func (s *Service) CreateBranding(ctx context.Context, config *BrandingConfig) error {
+	if err := s.db.WithContext(ctx).Create(config).Error; err != nil {
+		s.logger.WithError(err).Error("Failed to create branding config")
+		return fmt.Errorf("failed to create branding: %w", err)
+	}
+	s.logger.WithField("tenant_id", config.TenantID).Info("Branding config created")
+	return nil
+}
+
+// GetBranding retrieves branding by tenant ID
+func (s *Service) GetBranding(ctx context.Context, tenantID string) (*BrandingConfig, error) {
+	var config BrandingConfig
+	if err := s.db.WithContext(ctx).Where("tenant_id = ?", tenantID).First(&config).Error; err != nil {
+		return nil, fmt.Errorf("branding not found: %w", err)
+	}
+	return &config, nil
+}
+
+// GetBrandingByDomain retrieves branding by custom domain
+func (s *Service) GetBrandingByDomain(ctx context.Context, domain string) (*BrandingConfig, error) {
+	var config BrandingConfig
+	if err := s.db.WithContext(ctx).Where("custom_domain = ? AND is_active = ?", domain, true).First(&config).Error; err != nil {
+		return nil, fmt.Errorf("branding not found for domain: %w", err)
+	}
+	return &config, nil
+}
+
+// UpdateBranding updates branding configuration
+func (s *Service) UpdateBranding(ctx context.Context, config *BrandingConfig) error {
+	if err := s.db.WithContext(ctx).Save(config).Error; err != nil {
+		return fmt.Errorf("failed to update branding: %w", err)
+	}
+	return nil
+}
+
+// CreatePartnerConfig creates partner configuration
+func (s *Service) CreatePartnerConfig(ctx context.Context, config *PartnerConfig) error {
+	if err := s.db.WithContext(ctx).Create(config).Error; err != nil {
+		return fmt.Errorf("failed to create partner config: %w", err)
+	}
+	return nil
+}
+
+// GetPartnerConfig retrieves partner configuration
+func (s *Service) GetPartnerConfig(ctx context.Context, tenantID string) (*PartnerConfig, error) {
+	var config PartnerConfig
+	if err := s.db.WithContext(ctx).Where("tenant_id = ?", tenantID).First(&config).Error; err != nil {
+		return nil, fmt.Errorf("partner config not found: %w", err)
+	}
+	return &config, nil
+}
+
+// CreateEmailTemplate creates a custom email template
+func (s *Service) CreateEmailTemplate(ctx context.Context, template *EmailTemplate) error {
+	if err := s.db.WithContext(ctx).Create(template).Error; err != nil {
+		return fmt.Errorf("failed to create email template: %w", err)
+	}
+	return nil
+}
+
+// GetEmailTemplate retrieves an email template
+func (s *Service) GetEmailTemplate(ctx context.Context, tenantID, templateKey string) (*EmailTemplate, error) {
+	var template EmailTemplate
+	if err := s.db.WithContext(ctx).Where("tenant_id = ? AND template_key = ? AND is_active = ?", tenantID, templateKey, true).First(&template).Error; err != nil {
+		return nil, fmt.Errorf("email template not found: %w", err)
+	}
+	return &template, nil
+}
+
+// ListEmailTemplates lists all templates for a tenant
+func (s *Service) ListEmailTemplates(ctx context.Context, tenantID string) ([]*EmailTemplate, error) {
+	var templates []*EmailTemplate
+	if err := s.db.WithContext(ctx).Where("tenant_id = ?", tenantID).Find(&templates).Error; err != nil {
+		return nil, fmt.Errorf("failed to list templates: %w", err)
+	}
+	return templates, nil
+}
diff --git a/apps/carrier-connector/internal/whitelabel/types.go b/apps/carrier-connector/internal/whitelabel/types.go
new file mode 100644
index 0000000..0cd67e5
--- /dev/null
+++ b/apps/carrier-connector/internal/whitelabel/types.go
@@ -0,0 +1,85 @@
+package whitelabel
+
+import "time"
+
+// BrandingConfig defines partner branding configuration
+type BrandingConfig struct {
+	ID              string            `json:"id" gorm:"primaryKey"`
+	TenantID        string            `json:"tenant_id" gorm:"index"`
+	CompanyName     string            `json:"company_name"`
+	LogoURL         string            `json:"logo_url"`
+	FaviconURL      string            `json:"favicon_url"`
+	PrimaryColor    string            `json:"primary_color"`
+	SecondaryColor  string            `json:"secondary_color"`
+	AccentColor     string            `json:"accent_color"`
+	FontFamily      string            `json:"font_family"`
+	CustomCSS       string            `json:"custom_css"`
+	CustomDomain    string            `json:"custom_domain" gorm:"uniqueIndex"`
+	EmailFromName   string            `json:"email_from_name"`
+	EmailFromAddr   string            `json:"email_from_address"`
+	SupportEmail    string            `json:"support_email"`
+	SupportPhone    string            `json:"support_phone"`
+	TermsURL        string            `json:"terms_url"`
+	PrivacyURL      string            `json:"privacy_url"`
+	FooterText      string            `json:"footer_text"`
+	SocialLinks     map[string]string `json:"social_links" gorm:"serializer:json"`
+	Features        FeatureFlags      `json:"features" gorm:"embedded;embeddedPrefix:feature_"`
+	IsActive        bool              `json:"is_active"`
+	CreatedAt       time.Time         `json:"created_at"`
+	UpdatedAt       time.Time         `json:"updated_at"`
+}
+
+// FeatureFlags controls which features are enabled for a whitelabel partner
+type FeatureFlags struct {
+	ShowPoweredBy      bool `json:"show_powered_by"`
+	CustomEmailDomain  bool `json:"custom_email_domain"`
+	CustomAPIDomain    bool `json:"custom_api_domain"`
+	AdvancedAnalytics  bool `json:"advanced_analytics"`
+	WhitelabelMobile   bool `json:"whitelabel_mobile"`
+	CustomWebhooks     bool `json:"custom_webhooks"`
+	APIDocsBranding    bool `json:"api_docs_branding"`
+	MultiLanguage      bool `json:"multi_language"`
+}
+
+// EmailTemplate defines customizable email templates
+type EmailTemplate struct {
+	ID          string    `json:"id" gorm:"primaryKey"`
+	TenantID    string    `json:"tenant_id" gorm:"index"`
+	TemplateKey string    `json:"template_key" gorm:"index"`
+	Subject     string    `json:"subject"`
+	HTMLBody    string    `json:"html_body"`
+	TextBody    string    `json:"text_body"`
+	Variables   []string  `json:"variables" gorm:"serializer:json"`
+	IsActive    bool      `json:"is_active"`
+	CreatedAt   time.Time `json:"created_at"`
+	UpdatedAt   time.Time `json:"updated_at"`
+}
+
+// PartnerTier defines partnership levels with different capabilities
+type PartnerTier string
+
+const (
+	PartnerTierBasic      PartnerTier = "basic"
+	PartnerTierProfession PartnerTier = "professional"
+	PartnerTierEnterprise PartnerTier = "enterprise"
+	PartnerTierPlatinum   PartnerTier = "platinum"
+)
+
+// PartnerConfig defines partner-specific configuration
+type PartnerConfig struct {
+	ID                string            `json:"id" gorm:"primaryKey"`
+	TenantID          string            `json:"tenant_id" gorm:"uniqueIndex"`
+	Tier              PartnerTier       `json:"tier"`
+	RevenueSharePct   float64           `json:"revenue_share_pct"`
+	MinMonthlyCommit  float64           `json:"min_monthly_commit"`
+	MaxAPIRequests    int64             `json:"max_api_requests"`
+	MaxProfiles       int64             `json:"max_profiles"`
+	AllowedCountries  []string          `json:"allowed_countries" gorm:"serializer:json"`
+	AllowedCarriers   []string          `json:"allowed_carriers" gorm:"serializer:json"`
+	CustomPricing     map[string]any    `json:"custom_pricing" gorm:"serializer:json"`
+	ContractStartDate time.Time         `json:"contract_start_date"`
+	ContractEndDate   time.Time         `json:"contract_end_date"`
+	IsActive          bool              `json:"is_active"`
+	CreatedAt         time.Time         `json:"created_at"`
+	UpdatedAt         time.Time         `json:"updated_at"`
+}