Comcast Ventures, the corporate venture capital firm, is folding into Comcast's business development division and shifting its strategy to focus only on strategic investments. Partners were informed of the change this week, according to people familiar with the matter, who asked not to be named because the discussions were private. While Comcast Ventures will continue to operate under Comcast chief business development officer Sam Schwartz, it will no longer invest in a broad array of companies, instead focusing only on start-ups that can support Comcast initiatives.