A well known investor that has already put money into your startup. Ask for referrals. The founder of a company the investor has recently funded. Ask them to put us in touch with angels. Other angels. Even if an investor did not invest, we can still ask for advice to reach the investor we are targeting. Centers of influence known to the investor. Attorney. CPA. Financial planner. Investment banker. Friends or colleagues of the investor. Ask them to send an email on our behalf or if we are allowed to use their name. Honorable mention: Conferences, Competitions, Panels, Venture Fairs.