How to sort associative array with specified sequence of values?

I want to sort associative array with specified sequence of values

$arr=array(array("company"=>"A", "revenue_range"=>"10-100M"),
      array("company"=>"B", "revenue_range"=>"0-10M"),
      array("company"=>"C", "revenue_range"=>"10-100M"),
      array("company"=>"D", "revenue_range"=>"100M-1B"),
      array("company"=>"E", "revenue_range"=>">1B"),
     array( "company"=>"F", "revenue_range"=>"0-10M")

);

Result:-

$arr=array(array("company"=>"B", "revenue_range"=>"0-10M"),
       array( "company"=>"F", "revenue_range"=>"0-10M"),
      array("company"=>"A", "revenue_range"=>"10-100M"),
      array("company"=>"C", "revenue_range"=>"10-100M"),
      array("company"=>"D", "revenue_range"=>"100M-1B"),
      array("company"=>"E", "revenue_range"=>">1B"));