Never apologize for or otherwise undercut the argument you've made or leave your readers with the sense that "this is just little ol' me talking." Leave your readers with the sense that they've been in the company of someone who knows what he or she is doing. Also, if you promised in the introduction that you were going to cover four points and you covered only two (because you couldn't find enough information or you took too long with the first two or you got tired), don't try to cram those last two points into your final paragraph. The "rush job" will be all too apparent. Instead, revise your introduction or take the time to do justice to these other points.
Foursquare is principally funded by Union Square Ventures , Andreessen Horowitz , O'Reilly AlphaTech Ventures , and Spark Capital . The company raised $ million in its Series A round and $20 million in its Series B round .   On June 24, 2011, Foursquare raised $50 million on a $600 million valuation.  Their Series D round funding of $41 million was announced on April 11, 2013 and led by Silver Lake Partners .  Unlike prior funding rounds that had been financed via equity , a good portion of Series D came in the form of convertible debt from existing investors.