Spark Capital, the local venture capital firm that has invested in Twitter, Tumblr and Foursquare, among many others, has closed a new $450 million fund.

Spark’s Bijan Sabet wrote about the news on his blog today, explaining the new fund’s focus:

Late in 2004, Todd, Santo and Paul had this idea of starting a new venture capital firm. They wanted to do something entrepreneurial and build something from scratch. They asked me to join and we ended up calling the firm Spark Capital.

The premise of this new firm was to begin from a consumer perspective and invest in early stage opportunities in media, technology and entertainment…

…Today, I’m delighted to announce that we have raised our fourth fund — Spark IV. Spark IV is a $450MM venture capital fund. We will remain a principally early stage firm but also have the ability to invest in category leaders as well.

Spark’s previous fund was $360 million. You can view the full Spark portfolio here, which includes Boston startups like RunKeeper, Quantopian, and Wayfair.