Elena Ow-Wing Feb 13, 2015:

"Showcase projects" is certainly a good one. Or along the line I offered: "Major completed projects", just like that. In the case of "project portfolio", the word "portfolio" may already imply that it's a selection of the best projects. But it's certainly up to you to decide.
BTW, in the Russian phrase under question (of course, without taking into consideration the context which is only vaguely presented) there is nothing that suggests it is a list of the most prestigious projects. This phrase just means a pool of projects. So knowing the context, as usual, is what decides the final choice.

Sarah McDowell (asker) Feb 13, 2015:

The list is not all-inclusive The list under Проектный фонд does not show all of the client's projects, only their most prestigious ones. It also goes on to say that this is only the beginning of the company's success. Maybe "Showcase Projects" or something like that would be best?