If you mean volunteer in the Islamic Religion, well you can volunteer at the Masjid, at your local college MSA, you can volunteer to teach Islamic Children about Islam.

Your twelve year old daughter might be able to volunteer at her school. Have her check with the guidance councelor about helping with tutoring younger students. Or reading to the Pre-K. Or helping at an afterschool day care setting.

Yes

You can volunteer with Hope Ministries

To volunteer for work in a company, one can use the local newspaper to find postings or ads of volunteer wanted or needed. For an individual to volunteer their time with a company is equivalent to learning skills, companies usually teach individuals skills that eventually learns and keep the knowledge.