Initially, I was called by a recruiter from what I assume to be the headquarter branch in Illinois. The recruiter set up a proper time to call and conduct a 10-15 phone-interview. After the interview, I was told I would be informed of the decision after about a week (email if they weren't going to continue, or a call if they decided to set up an in-person interview). After a week of hearing nothing, I got an email from the Headquarters recruiter saying that the process was taking time and that I was still being considered--which is extremely cool for a company to do because it doesn't leave the applicant in the dark the whole time. I got a call a few days later, setting up an in-person interview. The dress was business professional and the recruiter also outlined some tips to help during the local interview. I arrived 15 minutes early to my interview, took a little tour of the sales floor while I waited, and then I spent an hour going over my resume, behavioral questions and questions of my own. Two people sat in on my interview and took turns asking me questions and answering my own. At the conclusion of my interview, one of them walked me outside.
Grainger really made me feel like a person looking to join their team, and not like a guy desperately selling myself just so they give me a chance to work with them. I really hope I get the chance to work with them, but if not, I'm not going to be salty about it because in the end, they gave me a chance to prove my value, but they also helped me tremendously improve myself as a job-seeker and interviewee.
If you're reading this, I hope you have the same exact interview experience I did because I really felt compelled to write this after my experience. I usually don't write reviews on anything, not even if I had bad food at a restaurant. But Grainger made it really hard to keep this experience to myself. Good luck!