Regulation D permits companies to raise capital from accredited investors, and broadly speaking affords founders the most autonomy for the least disclosure.
These Accredited Rounds come in two varieties, each permitting different solicitation methods: under Reg D 506(c), companies can broadly market their deal to the public, provided that they verify the accredited status of each participating investor - under Reg D 506(b), companies may accept investors without verification, but may only contact investors with whom they have an existing relationship (no public marketing).
