Selling group
The broker-dealers associated with the people who were paid to sell the offering.
Item 12 of a Form D lists commissioned sellers (people) and those associated BDs (firms). This site calls the firms the selling group. The sponsor packages the deal; the selling group sells it.
Why it shows up here: Emerson Equity is the exclusive managing BD on Vintage and 4th & J. WealthForge is that seat on Hayworth. Brian Nelson is on Vintage’s selling group as an Emerson vice president.