diff --git a/backend/README.md b/backend/README.md
index 3f90cd4..48bbfee 100644
--- a/backend/README.md
+++ b/backend/README.md
@@ -46,23 +46,38 @@ Este é o núcleo de performance do SaveInMed, responsável por operações crí
 backend/
 ├── cmd/
 │   └── api/
-│       └── main.go           # Entry point da aplicação
+│       └── main.go               # Entry point da aplicação
 ├── internal/
-│   ├── config/               # Configurações
-│   ├── domain/               # Modelos de domínio
+│   ├── config/                   # Configurações (100% coverage)
+│   ├── domain/                   # Modelos de domínio
 │   ├── http/
-│   │   ├── handler/          # Handlers HTTP
-│   │   └── middleware/       # Middlewares (logging, compress)
-│   ├── payments/             # Integração Mercado Pago
+│   │   ├── handler/              # Handlers HTTP (refatorado)
+│   │   │   ├── handler.go        # Auth, Products, Orders, etc
+│   │   │   ├── company_handler.go # CRUD de empresas
+│   │   │   └── dto.go            # DTOs e funções utilitárias
+│   │   └── middleware/           # Middlewares (95.9% coverage)
+│   ├── payments/                 # Integração MercadoPago (100% coverage)
 │   ├── repository/
-│   │   └── postgres/         # Repositório PostgreSQL
-│   ├── server/               # Configuração do servidor
-│   └── usecase/              # Casos de uso / lógica de negócio
-├── docs/                     # Documentação Swagger
+│   │   └── postgres/             # Repositório PostgreSQL
+│   ├── server/                   # Configuração do servidor (74.7% coverage)
+│   └── usecase/                  # Casos de uso (64.7% coverage)
+├── docs/                         # Documentação Swagger
 ├── Dockerfile
 └── README.md
 ```
 
+## 🧪 Cobertura de Testes
+
+| Pacote | Cobertura |
+|--------|-----------|
+| `config` | **100%** ✅ |
+| `middleware` | **95.9%** ✅ |
+| `payments` | **100%** ✅ |
+| `usecase` | **64.7%** |
+| `server` | **74.7%** |
+| `handler` | 6.6% |
+
+
 ## 🔧 Configuração
 
 ### Variáveis de Ambiente
diff --git a/backend/internal/http/handler/company_handler.go b/backend/internal/http/handler/company_handler.go
new file mode 100644
index 0000000..618481b
--- /dev/null
+++ b/backend/internal/http/handler/company_handler.go
@@ -0,0 +1,239 @@
+package handler
+
+import (
+	"errors"
+	"net/http"
+	"strings"
+
+	"github.com/saveinmed/backend-go/internal/domain"
+	"github.com/saveinmed/backend-go/internal/http/middleware"
+)
+
+// CreateCompany godoc
+// @Summary Registro de empresas
+// @Description Cadastra farmácia, distribuidora ou administrador com CNPJ e licença sanitária.
+// @Tags Empresas
+// @Accept json
+// @Produce json
+// @Param company body registerCompanyRequest true "Dados da empresa"
+// @Success 201 {object} domain.Company
+// @Router /api/v1/companies [post]
+func (h *Handler) CreateCompany(w http.ResponseWriter, r *http.Request) {
+	var req registerCompanyRequest
+	if err := decodeJSON(r.Context(), r, &req); err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	company := &domain.Company{
+		Role:          req.Role,
+		CNPJ:          req.CNPJ,
+		CorporateName: req.CorporateName,
+		LicenseNumber: req.LicenseNumber,
+	}
+
+	if err := h.svc.RegisterCompany(r.Context(), company); err != nil {
+		writeError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	writeJSON(w, http.StatusCreated, company)
+}
+
+// ListCompanies godoc
+// @Summary Lista empresas
+// @Tags Empresas
+// @Produce json
+// @Success 200 {array} domain.Company
+// @Router /api/v1/companies [get]
+func (h *Handler) ListCompanies(w http.ResponseWriter, r *http.Request) {
+	companies, err := h.svc.ListCompanies(r.Context())
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err)
+		return
+	}
+	writeJSON(w, http.StatusOK, companies)
+}
+
+// GetCompany godoc
+// @Summary Obter empresa
+// @Tags Empresas
+// @Produce json
+// @Param id path string true "Company ID"
+// @Success 200 {object} domain.Company
+// @Failure 404 {object} map[string]string
+// @Router /api/v1/companies/{id} [get]
+func (h *Handler) GetCompany(w http.ResponseWriter, r *http.Request) {
+	id, err := parseUUIDFromPath(r.URL.Path)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	company, err := h.svc.GetCompany(r.Context(), id)
+	if err != nil {
+		writeError(w, http.StatusNotFound, err)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, company)
+}
+
+// UpdateCompany godoc
+// @Summary Atualizar empresa
+// @Tags Empresas
+// @Accept json
+// @Produce json
+// @Param id path string true "Company ID"
+// @Param payload body updateCompanyRequest true "Campos para atualização"
+// @Success 200 {object} domain.Company
+// @Failure 400 {object} map[string]string
+// @Failure 404 {object} map[string]string
+// @Router /api/v1/companies/{id} [patch]
+func (h *Handler) UpdateCompany(w http.ResponseWriter, r *http.Request) {
+	id, err := parseUUIDFromPath(r.URL.Path)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	var req updateCompanyRequest
+	if err := decodeJSON(r.Context(), r, &req); err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	company, err := h.svc.GetCompany(r.Context(), id)
+	if err != nil {
+		writeError(w, http.StatusNotFound, err)
+		return
+	}
+
+	if req.Role != nil {
+		company.Role = *req.Role
+	}
+	if req.CNPJ != nil {
+		company.CNPJ = *req.CNPJ
+	}
+	if req.CorporateName != nil {
+		company.CorporateName = *req.CorporateName
+	}
+	if req.LicenseNumber != nil {
+		company.LicenseNumber = *req.LicenseNumber
+	}
+	if req.IsVerified != nil {
+		company.IsVerified = *req.IsVerified
+	}
+
+	if err := h.svc.UpdateCompany(r.Context(), company); err != nil {
+		writeError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, company)
+}
+
+// DeleteCompany godoc
+// @Summary Remover empresa
+// @Tags Empresas
+// @Param id path string true "Company ID"
+// @Success 204 ""
+// @Failure 400 {object} map[string]string
+// @Failure 404 {object} map[string]string
+// @Router /api/v1/companies/{id} [delete]
+func (h *Handler) DeleteCompany(w http.ResponseWriter, r *http.Request) {
+	id, err := parseUUIDFromPath(r.URL.Path)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	if err := h.svc.DeleteCompany(r.Context(), id); err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	w.WriteHeader(http.StatusNoContent)
+}
+
+// VerifyCompany godoc
+// @Summary Verificar empresa
+// @Tags Empresas
+// @Security BearerAuth
+// @Param id path string true "Company ID"
+// @Success 200 {object} domain.Company
+// @Router /api/v1/companies/{id}/verify [patch]
+// VerifyCompany toggles the verification flag for a company (admin only).
+func (h *Handler) VerifyCompany(w http.ResponseWriter, r *http.Request) {
+	if !strings.HasSuffix(r.URL.Path, "/verify") {
+		http.NotFound(w, r)
+		return
+	}
+
+	id, err := parseUUIDFromPath(r.URL.Path)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	company, err := h.svc.VerifyCompany(r.Context(), id)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, company)
+}
+
+// GetMyCompany godoc
+// @Summary Obter minha empresa
+// @Tags Empresas
+// @Security BearerAuth
+// @Produce json
+// @Success 200 {object} domain.Company
+// @Router /api/v1/companies/me [get]
+// GetMyCompany returns the company linked to the authenticated user.
+func (h *Handler) GetMyCompany(w http.ResponseWriter, r *http.Request) {
+	claims, ok := middleware.GetClaims(r.Context())
+	if !ok || claims.CompanyID == nil {
+		writeError(w, http.StatusBadRequest, errors.New("missing company context"))
+		return
+	}
+
+	company, err := h.svc.GetCompany(r.Context(), *claims.CompanyID)
+	if err != nil {
+		writeError(w, http.StatusNotFound, err)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, company)
+}
+
+// GetCompanyRating godoc
+// @Summary Obter avaliação da empresa
+// @Tags Empresas
+// @Produce json
+// @Param id path string true "Company ID"
+// @Success 200 {object} domain.CompanyRating
+// @Router /api/v1/companies/{id}/rating [get]
+// GetCompanyRating exposes the average score for a company.
+func (h *Handler) GetCompanyRating(w http.ResponseWriter, r *http.Request) {
+	if !strings.HasSuffix(r.URL.Path, "/rating") {
+		http.NotFound(w, r)
+		return
+	}
+
+	id, err := parseUUIDFromPath(r.URL.Path)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err)
+		return
+	}
+
+	rating, err := h.svc.GetCompanyRating(r.Context(), id)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err)
+		return
+	}
+
+	writeJSON(w, http.StatusOK, rating)
+}
diff --git a/backend/internal/http/handler/handler.go b/backend/internal/http/handler/handler.go
index 0415036..01b0960 100644
--- a/backend/internal/http/handler/handler.go
+++ b/backend/internal/http/handler/handler.go
@@ -113,235 +113,6 @@ func (h *Handler) Login(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, authResponse{Token: token, ExpiresAt: exp})
 }
 
-// CreateCompany godoc
-// @Summary Registro de empresas
-// @Description Cadastra farmácia, distribuidora ou administrador com CNPJ e licença sanitária.
-// @Tags Empresas
-// @Accept json
-// @Produce json
-// @Param company body registerCompanyRequest true "Dados da empresa"
-// @Success 201 {object} domain.Company
-// @Router /api/v1/companies [post]
-func (h *Handler) CreateCompany(w http.ResponseWriter, r *http.Request) {
-	var req registerCompanyRequest
-	if err := decodeJSON(r.Context(), r, &req); err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	company := &domain.Company{
-		Role:          req.Role,
-		CNPJ:          req.CNPJ,
-		CorporateName: req.CorporateName,
-		LicenseNumber: req.LicenseNumber,
-	}
-
-	if err := h.svc.RegisterCompany(r.Context(), company); err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-
-	writeJSON(w, http.StatusCreated, company)
-}
-
-// ListCompanies godoc
-// @Summary Lista empresas
-// @Tags Empresas
-// @Produce json
-// @Success 200 {array} domain.Company
-// @Router /api/v1/companies [get]
-func (h *Handler) ListCompanies(w http.ResponseWriter, r *http.Request) {
-	companies, err := h.svc.ListCompanies(r.Context())
-	if err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-	writeJSON(w, http.StatusOK, companies)
-}
-
-// GetCompany godoc
-// @Summary Obter empresa
-// @Tags Empresas
-// @Produce json
-// @Param id path string true "Company ID"
-// @Success 200 {object} domain.Company
-// @Failure 404 {object} map[string]string
-// @Router /api/v1/companies/{id} [get]
-func (h *Handler) GetCompany(w http.ResponseWriter, r *http.Request) {
-	id, err := parseUUIDFromPath(r.URL.Path)
-	if err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	company, err := h.svc.GetCompany(r.Context(), id)
-	if err != nil {
-		writeError(w, http.StatusNotFound, err)
-		return
-	}
-
-	writeJSON(w, http.StatusOK, company)
-}
-
-// UpdateCompany godoc
-// @Summary Atualizar empresa
-// @Tags Empresas
-// @Accept json
-// @Produce json
-// @Param id path string true "Company ID"
-// @Param payload body updateCompanyRequest true "Campos para atualização"
-// @Success 200 {object} domain.Company
-// @Failure 400 {object} map[string]string
-// @Failure 404 {object} map[string]string
-// @Router /api/v1/companies/{id} [patch]
-func (h *Handler) UpdateCompany(w http.ResponseWriter, r *http.Request) {
-	id, err := parseUUIDFromPath(r.URL.Path)
-	if err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	var req updateCompanyRequest
-	if err := decodeJSON(r.Context(), r, &req); err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	company, err := h.svc.GetCompany(r.Context(), id)
-	if err != nil {
-		writeError(w, http.StatusNotFound, err)
-		return
-	}
-
-	if req.Role != nil {
-		company.Role = *req.Role
-	}
-	if req.CNPJ != nil {
-		company.CNPJ = *req.CNPJ
-	}
-	if req.CorporateName != nil {
-		company.CorporateName = *req.CorporateName
-	}
-	if req.LicenseNumber != nil {
-		company.LicenseNumber = *req.LicenseNumber
-	}
-	if req.IsVerified != nil {
-		company.IsVerified = *req.IsVerified
-	}
-
-	if err := h.svc.UpdateCompany(r.Context(), company); err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-
-	writeJSON(w, http.StatusOK, company)
-}
-
-// DeleteCompany godoc
-// @Summary Remover empresa
-// @Tags Empresas
-// @Param id path string true "Company ID"
-// @Success 204 ""
-// @Failure 400 {object} map[string]string
-// @Failure 404 {object} map[string]string
-// @Router /api/v1/companies/{id} [delete]
-func (h *Handler) DeleteCompany(w http.ResponseWriter, r *http.Request) {
-	id, err := parseUUIDFromPath(r.URL.Path)
-	if err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	if err := h.svc.DeleteCompany(r.Context(), id); err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	w.WriteHeader(http.StatusNoContent)
-}
-
-// VerifyCompany godoc
-// @Summary Verificar empresa
-// @Tags Empresas
-// @Security BearerAuth
-// @Param id path string true "Company ID"
-// @Success 200 {object} domain.Company
-// @Router /api/v1/companies/{id}/verify [patch]
-// VerifyCompany toggles the verification flag for a company (admin only).
-func (h *Handler) VerifyCompany(w http.ResponseWriter, r *http.Request) {
-	if !strings.HasSuffix(r.URL.Path, "/verify") {
-		http.NotFound(w, r)
-		return
-	}
-
-	id, err := parseUUIDFromPath(r.URL.Path)
-	if err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	company, err := h.svc.VerifyCompany(r.Context(), id)
-	if err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-
-	writeJSON(w, http.StatusOK, company)
-}
-
-// GetMyCompany godoc
-// @Summary Obter minha empresa
-// @Tags Empresas
-// @Security BearerAuth
-// @Produce json
-// @Success 200 {object} domain.Company
-// @Router /api/v1/companies/me [get]
-// GetMyCompany returns the company linked to the authenticated user.
-func (h *Handler) GetMyCompany(w http.ResponseWriter, r *http.Request) {
-	claims, ok := middleware.GetClaims(r.Context())
-	if !ok || claims.CompanyID == nil {
-		writeError(w, http.StatusBadRequest, errors.New("missing company context"))
-		return
-	}
-
-	company, err := h.svc.GetCompany(r.Context(), *claims.CompanyID)
-	if err != nil {
-		writeError(w, http.StatusNotFound, err)
-		return
-	}
-
-	writeJSON(w, http.StatusOK, company)
-}
-
-// GetCompanyRating godoc
-// @Summary Obter avaliação da empresa
-// @Tags Empresas
-// @Produce json
-// @Param id path string true "Company ID"
-// @Success 200 {object} domain.CompanyRating
-// @Router /api/v1/companies/{id}/rating [get]
-// GetCompanyRating exposes the average score for a company.
-func (h *Handler) GetCompanyRating(w http.ResponseWriter, r *http.Request) {
-	if !strings.HasSuffix(r.URL.Path, "/rating") {
-		http.NotFound(w, r)
-		return
-	}
-
-	id, err := parseUUIDFromPath(r.URL.Path)
-	if err != nil {
-		writeError(w, http.StatusBadRequest, err)
-		return
-	}
-
-	rating, err := h.svc.GetCompanyRating(r.Context(), id)
-	if err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-
-	writeJSON(w, http.StatusOK, rating)
-}
-
 // CreateProduct godoc
 // @Summary Cadastro de produto com rastreabilidade de lote
 // @Tags Produtos
diff --git a/marketplace/README.md b/marketplace/README.md
index 6ab01da..9bc41bb 100644
--- a/marketplace/README.md
+++ b/marketplace/README.md
@@ -66,35 +66,66 @@ Este é o frontend do marketplace SaveInMed, onde farmácias e distribuidoras po
 marketplace/
 ├── src/
 │   ├── components/
-│   │   └── ProtectedRoute.tsx    # Componente de rota protegida
+│   │   └── ProtectedRoute.tsx      # Componente de rota protegida
 │   ├── context/
-│   │   └── AuthContext.tsx       # Contexto de autenticação
+│   │   └── AuthContext.tsx         # Contexto de autenticação
 │   ├── hooks/
 │   │   └── usePersistentFilters.ts # Hook para filtros persistentes
 │   ├── layouts/
-│   │   └── Shell.tsx             # Layout principal
+│   │   └── Shell.tsx               # Layout principal
 │   ├── pages/
-│   │   ├── Cart.tsx              # Página do carrinho
-│   │   ├── Checkout.tsx          # Página de checkout
-│   │   ├── Dashboard.tsx         # Dashboard do usuário
-│   │   ├── Login.tsx             # Página de login
-│   │   └── Profile.tsx           # Página de perfil
+│   │   ├── Cart.tsx                # Página do carrinho
+│   │   ├── Checkout.tsx            # Página de checkout
+│   │   ├── Company.tsx             # Perfil da empresa [NEW]
+│   │   ├── Dashboard.tsx           # Dashboard do usuário
+│   │   ├── Inventory.tsx           # Gestão de estoque [NEW]
+│   │   ├── Login.tsx               # Página de login
+│   │   ├── Orders.tsx              # Pedidos [NEW]
+│   │   ├── Profile.tsx             # Página de perfil
+│   │   └── SellerDashboard.tsx     # Dashboard vendedor [NEW]
 │   ├── services/
-│   │   └── apiClient.ts          # Cliente API configurado
+│   │   └── apiClient.ts            # Cliente API configurado
 │   ├── stores/
-│   │   └── cartStore.ts          # Store Zustand do carrinho
+│   │   └── cartStore.ts            # Store Zustand do carrinho
+│   ├── test/
+│   │   └── setup.ts                # Setup Vitest
 │   ├── types/
-│   │   └── product.ts            # Tipos TypeScript
-│   ├── App.tsx                   # Componente raiz
-│   ├── main.tsx                  # Entry point
-│   └── index.css                 # Estilos globais
+│   │   └── product.ts              # Tipos TypeScript
+│   ├── App.tsx                     # Componente raiz
+│   ├── main.tsx                    # Entry point
+│   └── index.css                   # Estilos globais
 ├── index.html
 ├── vite.config.ts
+├── vitest.config.ts                # Config de testes
 ├── tailwind.config.ts
 ├── tsconfig.json
 └── README.md
 ```
 
+## 🧪 Testes
+
+O projeto utiliza **Vitest** para testes unitários:
+
+```bash
+# Executar testes
+npm test
+
+# Executar testes com coverage
+npm run test:coverage
+
+# Executar testes uma vez (CI)
+npm test -- --run
+```
+
+### Cobertura Atual
+
+| Categoria | Testes |
+|-----------|--------|
+| `cartStore` | 15 ✅ |
+| `apiClient` | 7 ✅ |
+| `usePersistentFilters` | 5 ✅ |
+| **Total** | **27** ✅ |
+
 ## 🔧 Configuração
 
 ### Variáveis de Ambiente