When addressing an envelope to a specific person at a large business does the company name come first or the individual's name? What is the proper way to address the envelope?

The way I write it is, company and address, and on the side Attn: Mr. Schmuck.
I'm not a secreatary, and you might want to wait for an official answer.

The typical way to address an envelope is *most* specific to least specific, as in

Name
Title
Mail-Stop or internal mail address
Department
Division
Company
Suite Number or Floor Number
Street Address
City, State, Zip
Country

This is obviously a really long address, and I doubt any company would routinely use all the items, but I put them all in, just in case. I'm not Miss Manners, and I haven't looked this up, but it makes sense and is the way that I've seen it done the most.

Thank you both for the replies!