Google Webmaster Central is an excellent resource for site owners and developers. A Google Groups thread asked if there is a way to give someone else access to your Google Webmaster Tools reports.
Why would someone want to do this? Let's say you are the site owner, and you want to show the reports to your SEO. There can be dozens of reasons.
Unlike with some of Google's other products, where you can invite people to see your data. Examples of products that allowed invite access include, Google AdWords, Google Analytics, Google Docs and others.
Currently Google said this feature is not available, but they know about the request and they are "considering it." But there is a work around. You can easily upload several verification Meta tags or HTML files. This allows you to give that user access to your reports. You just have that user try to authenticate your site in his Webmaster Tools section and him give you either the verification Meta tag or HTML file and add that to your site. Presto, multiple access to the same reports. I do this with a few sites.
Forum discussion at Google Groups.

Comments:
Jon
09/11/2008 04:37 pm
Just what I was looking for, thanks! Any news on when they (Google) will add multiple user access to the Webmaster Tools in their interface?
Aqeel Bilal Malik
12/15/2008 01:31 pm
I was wondering to get some solution to add a profile or user to see the reports i am getting from google on Google Webmasters for my website esolpkonline.com. "Nice to get a solution of uploading multiple verification files or meta tags". I have read on multiple websites, that Google is updating this webmasters tool with latest features e.g. adjusting Google crawl rate e.t.c. I am sure that Google will add this particular access feature soon.
Hetal
07/10/2009 07:51 pm
Humm! I thought If i will add another meta tag then previous one will be considered as expired.
Martin
07/12/2009 04:11 pm
Interesting, exactly what I've been hoping for some time now. Thank you for your advice, will test immediately!
rocco April
08/26/2009 05:28 pm
thanks for the tip, it worked great.
Mike
09/03/2009 01:59 am
The subsequent Google account doesn't seem to list a sitemap that was submitted via the primary account. The second account will therefore be missing the sitemap related data. I guess it could be submitted from both accounts, but I'm not sure if that could have negative effects.
Neytri
11/10/2009 12:34 pm
Even I faced that problem, thanks for saving my time..
Neytri
12/07/2009 07:52 am
I am using a CMS, and don't know how to edit Meta Data and all. So I was using the File Upload verification process. The text written here is not completely correct, as the file google gives you has same name so it will overwrite the former one.