diff --git a/types/cnpj/cnpj-tests.ts b/types/cnpj/cnpj-tests.ts
new file mode 100644
index 0000000000..f43834cc3d
--- /dev/null
+++ b/types/cnpj/cnpj-tests.ts
@@ -0,0 +1,5 @@
+import * as cnpj from 'cnpj';
+
+const valid: boolean = cnpj.validate('38.981.218/0001-47');
+const formatted: string = cnpj.format(88415345000157);
+const generated: string = cnpj.generate();
diff --git a/types/cnpj/index.d.ts b/types/cnpj/index.d.ts
new file mode 100644
index 0000000000..de38629631
--- /dev/null
+++ b/types/cnpj/index.d.ts
@@ -0,0 +1,24 @@
+// Type definitions for cnpj 3.0
+// Project: https://github.com/gabrielizaias/cnpj
+// Definitions by: Miguel A. Almeida <https://github.com/migueldevmt>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+
+/**
+ * Verifica validade do cnpj
+ * @param cnpj o CNPJ a ser validado.
+ * @returns Verdadeiro ou falso indicando a validade.
+ */
+export function validate(cnpj: string): boolean;
+
+/**
+ * Formata o cnpj com pontos e barra
+ * @param cnpj o CNPJ a ser formatado.
+ * @returns A string formatado.
+ */
+export function format(cnpj: number): string;
+
+/**
+ * Gera um cnpj aleatorio e valido
+ * @returns CNPJ gerado
+ */
+export function generate(): string;
diff --git a/types/cnpj/tsconfig.json b/types/cnpj/tsconfig.json
new file mode 100644
index 0000000000..0fadf50d00
--- /dev/null
+++ b/types/cnpj/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictNullChecks": true,
+        "strictFunctionTypes": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "cnpj-tests.ts"
+    ]
+}
\ No newline at end of file
diff --git a/types/cnpj/tslint.json b/types/cnpj/tslint.json
new file mode 100644
index 0000000000..3db14f85ea
--- /dev/null
+++ b/types/cnpj/tslint.json
@@ -0,0 +1 @@
+{ "extends": "dtslint/dt.json" }