Dynafund Ventures primarily invests in US-based technology companies in sectors such as communications, networking, electronics, and software. They have a preference for startups that are 2-3 years old and have successfully invested in companies like Luminous Networks, Appfluent Technology, and Cooking.com. With investments ranging from $1 million to $5 million, Dynafund Ventures often leads or co-leads financing rounds and has strong connections with other venture capital firms for syndicating larger amounts of capital.