Nice example of a recent thesis
Bischoff, Tobias (2017) Dynamics of the Intertropical Convergence Zone. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/Z97M05XR. http://resolver.caltech.edu/CaltechTHESIS:11122016-111133209
Proof of completion for future employers
Citation Format and Linking for Theses
You have just received a letter or an email from a publisher offering to publish your thesis for you. What now?
We would caution you to look carefully at such solicitations.
The companies that have contacted you, unsolicited, may be a vanity press or belong to questionable and highly suspect publishers.
Vanity press publishers do not ask you to pay them up front. They are in essence a a print-on-demand publisher.
The most well-known "publishers", all based in Europe, are:
It is good to know that Lambert Academic Publishing, for example, uses the same phrases in their email solicitations as "Scholars' Press", which shares the same address as VDM Publishing.
You Need to Know
Most thesis and dissertation authors seek to publish at least part of their thesis or dissertation -- usually substantially re-worked from the strict thesis/dissertation format -- in a peer reviewed journal (article length) or by a university press, learned society, or well established commercial publisher (book length). These vanity publishers might not impress a tenure review board, especially if you are planning a career in academia. I suggest you do a simple search engine search (google, bing, yahoo) and draw your own conclusions.
This article is highly recommended reading, and explains matters pretty well: http://www.universityaffairs.ca/publishing-your-thesis-online.aspx. Another source of information is this article in the Chronicle of Higher Education: http://chronicle.com/forums/index.php?topic=45997.15
If you're still not certain, your thesis advisor is an excellent resource for more specific advice. Caltech's Office of the General Counsel is another great resource, as they deal regualry with Intellectual Property matters.