Here is the full list of all 11 Community Inc achievements.
Have 30 or more Lings
Craft more than 200 items
First play
Have 10 or more buildings
Sell more than 200 items
Gain over 9999 Surplus
Complete 50 contracts
Defeat at least 50 creatures
30 Lings have more than 80% Happiness
30 or more Lings killed themselves
20 or more objects on fire