We just switched our site to bootstrap 3 and we have a bunch of forms…wasn’t fun but once you get the hang it’s not too bad.
Is this what you are looking for? Demo Here
<div class="form-group">
<label class="control-label col-sm-offset-2 col-sm-2" for="company">Company</label>
<div class="col-sm-6 col-md-4">
<select id="company" class="form-control">
<option>small</option>
<option>medium</option>
<option>large</option>
</select>
</div>
</div>