排名    首发保荐机构            保荐数量（家）

1       中信建投证券            12  

2       安信证券                7   

3       申万宏源证券承销保荐    6   

4       开源证券                5   

5       国元证券                5   

6       中信证券                4   

7       东北证券                4   

8       中泰证券                3   

9       长江证券承销保荐        3