Substring & Charindex

SSRS05

I trying to do a select from the first character after a space in a concatenate variable @name. You can see it has variable length and the space is either in position 2 or 3.

@name = 1 companyaaaa

             2 companycccc

             12 companyxxxxxxxx

             13 companysssssssssssssss

select *
from companies
where companyname = substring(@name,charindex(' ',@name,1),LEN(@name))