Contrary to behavior by many of the too-big-to-fail financial institutions, other mortgage companies are expanding their origination lines to capture a bigger piece of the market.

Quicken Loans Mortgage Services, a division of Detroit-based Quicken Loans, began originating loans two years ago, ballooning from nothing to $750 million in loans in April as a wholesale and correspondent lender.

QLMS originated more than $2 billion in 2011, contributing to Quicken Loans overall total of $30 billion in mortgage originations throughout the year and strengthening its top 10 position as an originator, according to Inside Mortgage Finance. QLMS, calling its growth “explosive,” predicts it will originate $8 billion to $12 billion in mortgages in 2012.

Read More: Mortgage lenders maneuver to gain market share