Marc Andreessen at Startup School [video]
I grossly underestimated the value of a warm intro in Silicon Valley before getting here, and still did before I started working for a VC firm. Coming in as an entrepreneur from  smaller startup ecosystems in Boston &amp; Europe, I was a bit puzzled by it — it seemed like unnecessary decorum or just a cheap ploy by VCs to maintain their inbox zero streak. Beyond the a16z process explained by Mr. Andreessen here, I should note that <i>any</i> third-party intro (to say nothing of a warm intro) will drastically enhance your chances at almost <i>any</i> firm even if they don’t require it. It’s a sign of hustle, diligence &amp; genuine interest from entrepreneurs, even if the person that introduces you isn’t particularly warm about you or friendly with the partner in question. You’d be surprised how many founders fail to display that hustle&#x2F;diligence&#x2F;interest in discussions with VCs!<p>I wouldn’t overthink the warm bit too much. Usually just by virtue of being willing to make the intro your contact will be warm and exude warmth. But I’ve also seen partner take intros from people they barely know&#x2F;remember&#x2F;trust if the pitch is compelling. Just make sure you stay connected to partners and potential connectors way ahead of time, and that they know you &amp; your business. When the time comes, an intro will be a no-brainer.