WWI draft registration records for that period are available at ancestry.com and elsewhere. They are filed by name and location and date, though not by company as they are draft files, not company files.

I can search for the name for you if you wish.

Are you looking for a specific person who would have signed up for the draft or for the infantry company rosters?

See the company historian/info here as they may be able to help you:

http://www.irondivision.org/