diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 60c967b..cea8c28 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1,3 +1,4 @@
+require 'calefaction/eve'
 require 'calefaction/version'
 
 module ApplicationHelper
diff --git a/app/models/user.rb b/app/models/user.rb
index 7db5d34..aa05e5e 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -17,13 +17,17 @@ class User < ActiveRecord::Base
     member_of? AdminSetting.get(:corp_id).to_i
   end
 
-  def member_of?(corp_id)
+  def member_of?(corp)
+    corp_id == corp
+  end
+
+  def corp_id
     ensure_api_user
     @api.scope = 'char'
     begin
-      @api.CharacterSheet(names: name).corporationID.to_i == corp_id
+      @api.CharacterSheet(names: name).corporationID.to_i
     rescue EAAL::EAALError
-      false
+      0
     end
   end
 
diff --git a/app/views/shared/_header.html.erb b/app/views/shared/_header.html.erb
index 2be0a09..4648a7b 100644
--- a/app/views/shared/_header.html.erb
+++ b/app/views/shared/_header.html.erb
@@ -8,7 +8,7 @@
   <nav>
     <ul>
       <% if @user %>
-        <li><%= @user.name %></li>
+        <li><%= @user.name %> [<%= Calefaction::EVE.corp_ticker @user.corp_id %>]</li>
         <% if @user.admin? %>
           <li><%= link_to 'Admin', controller: 'admin', action: 'index' %></li>
         <% end %>
diff --git a/lib/calefaction/eve.rb b/lib/calefaction/eve.rb
new file mode 100644
index 0000000..e891956
--- /dev/null
+++ b/lib/calefaction/eve.rb
@@ -0,0 +1,28 @@
+module Calefaction::EVE
+  extend self
+
+  def corp_ticker(corp_id)
+    cache_key = "calefaction/eve/corp_ticker/#{corp_id}"
+    existing = Rails.cache.read(cache_key)
+    return existing unless existing.nil?
+    ticker = get_corp_ticker_from_api(corp_id)
+    return '?' if ticker.nil?
+    Rails.cache.write(cache_key, ticker)
+    ticker
+  end
+
+  private
+  def get_corp_ticker_from_api(corp_id)
+    ensure_api
+    @@api.scope = 'corp'
+    begin
+      @@api.CorporationSheet(corporationID: corp_id).ticker
+    rescue EAAL::EAALError
+      nil
+    end
+  end
+
+  def ensure_api
+    @@api ||= EAAL::API.new(nil, nil)
+  end
+end