diff --git a/README.md b/README.md
index 37bde27..2503dd1 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ Counsel-projectile also provides replacements for several standard projectile co
 - <kbd>C-c p f</kbd> `counsel-projectile-find-file`: find a project file,
 - <kbd>C-c p d</kbd> `counsel-projectile-find-dir`: find a project directory,
 - <kbd>C-c p b</kbd> `counsel-projectile-switch-to-buffer`: switch to a project buffer,
+- <kbd>C-c p s s</kbd> `counsel-projectile-ag`: search project files with ag,
 - <kbd>C-c p p</kbd> `counsel-projectile-switch-project`: switch to another project (see above).
 
 If your default action for switching to a project (stored in the variable `projectile-switch-project-action`) is `projectile-find-file` (the default), then `counsel-projectile-on` also replaces it with `counsel-projectile-find-file-or-buffer` (see above).
diff --git a/counsel-projectile.el b/counsel-projectile.el
index ada2bb4..248e15b 100644
--- a/counsel-projectile.el
+++ b/counsel-projectile.el
@@ -193,6 +193,34 @@ With a prefix ARG invalidates the cache first."
   (projectile-maybe-invalidate-cache arg)
   (counsel-projectile-switch-to-buffer t))
 
+;;; counsel-projectile-ag
+
+(defun counsel-projectile-ag (&optional options)
+  "Ivy version of `projectile-ag'."
+  (interactive)
+  (if (projectile-project-p)
+      (let* ((options
+              (if current-prefix-arg
+                  (read-string "options: ")
+                options))
+             (ignored
+              (unless (eq (projectile-project-vcs) 'git)
+                ;; ag supports git ignore files
+                (append
+                 (cl-union (projectile-ignored-files-rel) grep-find-ignored-files)
+                 (cl-union (projectile-ignored-directories-rel) grep-find-ignored-directories))))
+             (options
+              (concat options
+                      (mapconcat (lambda (i)
+                                   (concat "--ignore " i))
+                                 ignored
+                                 " "))))
+        (counsel-ag nil
+                    (projectile-project-root)
+                    options
+                    (projectile-prepend-project-name "ag")))
+    (user-error "You're not in a project")))
+
 ;;; counsel-projectile-switch-project
 
 ;;;###autoload
@@ -248,7 +276,11 @@ With a prefix ARG invokes `projectile-commander' instead of `projectile-switch-p
    ("e" (lambda (dir)
           (let ((projectile-switch-project-action 'projectile-run-eshell))
             (projectile-switch-project-by-name dir arg)))
-    "start eshell")))
+    "start eshell")
+   ("a" (lambda (dir)
+          (let ((projectile-switch-project-action 'counsel-projectile-ag))
+            (projectile-switch-project-by-name dir arg)))
+    "search with ag")))
 
 ;;; counsel-projectile
 
@@ -273,15 +305,15 @@ With a prefix ARG invalidates the cache first."
   (def-projectile-commander-method ?f
     "Find file in project."
     (counsel-projectile-find-file))
-
-  (def-projectile-commander-method ?b
-    "Switch to project buffer."
-    (counsel-projectile-switch-to-buffer))
-
   (def-projectile-commander-method ?d
     "Find directory in project."
     (counsel-projectile-find-dir))
-
+  (def-projectile-commander-method ?b
+    "Switch to project buffer."
+    (counsel-projectile-switch-to-buffer))
+  (def-projectile-commander-method ?A
+    "Search project files with ag."
+    (counsel-projectile-ag))
   (def-projectile-commander-method ?s
     "Switch project."
     (counsel-projectile-switch-project)))
@@ -295,6 +327,7 @@ With a prefix ARG invalidates the cache first."
         (define-key projectile-mode-map [remap projectile-find-file] #'counsel-projectile-find-file)
         (define-key projectile-mode-map [remap projectile-find-dir] #'counsel-projectile-find-dir)
         (define-key projectile-mode-map [remap projectile-switch-project] #'counsel-projectile-switch-project)
+        (define-key projectile-mode-map [remap projectile-ag] #'counsel-projectile-ag)
         (define-key projectile-mode-map [remap projectile-switch-to-buffer] #'counsel-projectile-switch-to-buffer)
         (counsel-projectile-commander-bindings))
     (progn
@@ -303,6 +336,7 @@ With a prefix ARG invalidates the cache first."
       (define-key projectile-mode-map [remap projectile-find-file] nil)
       (define-key projectile-mode-map [remap projectile-find-dir] nil)
       (define-key projectile-mode-map [remap projectile-switch-project] nil)
+      (define-key projectile-mode-map [remap projectile-ag] nil)
       (define-key projectile-mode-map [remap projectile-switch-to-buffer] nil)
       (projectile-commander-bindings))))