diff --git a/pom.xml b/pom.xml
index f7fe4fb4..0a2e60c2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -130,6 +130,11 @@
 			<artifactId>PermissionsBukkit</artifactId>
 			<version>1.6</version>
 		</dependency>
+		<dependency>
+			<groupId>org.anjocaido</groupId>
+			<artifactId>EssentialsGroupManager</artifactId>
+			<version>2.10.1</version>
+		</dependency>
 	</dependencies>
 	<version>1.7</version>
 </project>
diff --git a/src/main/java/org/dynmap/bukkit/DynmapPlugin.java b/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
index 1be44f52..ea603f22 100644
--- a/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
+++ b/src/main/java/org/dynmap/bukkit/DynmapPlugin.java
@@ -82,6 +82,7 @@ import org.dynmap.bukkit.permissions.NijikokunPermissions;
 import org.dynmap.bukkit.permissions.OpPermissions;
 import org.dynmap.bukkit.permissions.PEXPermissions;
 import org.dynmap.bukkit.permissions.PermBukkitPermissions;
+import org.dynmap.bukkit.permissions.GroupManagerPermissions;
 import org.dynmap.bukkit.permissions.PermissionProvider;
 import org.dynmap.bukkit.permissions.bPermPermissions;
 import org.dynmap.common.BiomeMap;
@@ -724,6 +725,8 @@ public class DynmapPlugin extends JavaPlugin implements DynmapAPI {
         permissions = PEXPermissions.create(getServer(), "dynmap");
         if (permissions == null)
             permissions = bPermPermissions.create(getServer(), "dynmap", perdefs);
+        if (permissions == null)
+            permissions = GroupManagerPermissions.create(getServer(), "dynmap");
         if (permissions == null)
             permissions = PermBukkitPermissions.create(getServer(), "dynmap", perdefs);
         if (permissions == null)
diff --git a/src/main/java/org/dynmap/bukkit/permissions/GroupManagerPermissions.java b/src/main/java/org/dynmap/bukkit/permissions/GroupManagerPermissions.java
new file mode 100644
index 00000000..d1b9c424
--- /dev/null
+++ b/src/main/java/org/dynmap/bukkit/permissions/GroupManagerPermissions.java
@@ -0,0 +1,64 @@
+package org.dynmap.bukkit.permissions;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.bukkit.Server;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+import org.dynmap.Log;
+import org.anjocaido.groupmanager.GroupManager;
+import org.anjocaido.groupmanager.dataholder.worlds.WorldsHolder;
+import org.anjocaido.groupmanager.permissions.AnjoPermissionsHandler;
+
+public class GroupManagerPermissions implements PermissionProvider {
+    String name;
+    GroupManager gm;
+    WorldsHolder wh;
+
+    public static GroupManagerPermissions create(Server server, String name) {
+        Plugin permissionsPlugin = server.getPluginManager().getPlugin("GroupManager");
+        if (permissionsPlugin == null)
+            return null;
+        server.getPluginManager().enablePlugin(permissionsPlugin);
+        if(permissionsPlugin.isEnabled() == false)
+            return null;
+        Log.info("Using GroupManager " + permissionsPlugin.getDescription().getVersion() + " for access control");
+        return new GroupManagerPermissions(name, permissionsPlugin);
+    }
+
+    public GroupManagerPermissions(String name, Plugin permissionsPlugin) {
+        this.name = name;
+        gm = (GroupManager)permissionsPlugin;
+        wh = gm.getWorldsHolder();
+    }
+
+    @Override
+    public boolean has(CommandSender sender, String permission) {
+        Player player = sender instanceof Player ? (Player) sender : null;
+        return (player != null) ? wh.getWorldPermissions(player).has(player, name + "." + permission) : true;
+    }
+    
+    @Override
+    public Set<String> hasOfflinePermissions(String player, Set<String> perms) {
+        HashSet<String> hasperms = new HashSet<String>();
+        AnjoPermissionsHandler apm = wh.getWorldPermissionsByPlayerName(player);
+        if (apm != null) {
+            for (String pp : perms) {
+                if (apm.permission(player, name + "." + pp)) {
+                    hasperms.add(pp);
+                }
+            }
+        }
+        return hasperms;
+    }
+    @Override
+    public boolean hasOfflinePermission(String player, String perm) {
+        AnjoPermissionsHandler apm = wh.getWorldPermissionsByPlayerName(player);
+        if(apm != null) {
+            return apm.permission(player, name + "." + perm);
+        }
+        return false;
+    }
+}