Ankeny, IOWA — An unlikely corporate name kept popping up when Sen. Kamala D. Harris (D-Calif.) visited a community college campus here for a recent forum dedicated to small-business ­issues.

The candidate, who has staked hopes of reviving her candidacy on Iowa’s first-in-the-nation caucuses, was 1,100 miles and a world away from Goldman Sachs’s Wall Street headquarters. But there was the bank’s emblem, and that of its charitable “10,000 Small Businesses” program, flanking her onstage as she took questions from veteran Iowa political journalist David Yepsen. And it loomed over her shoulder on a backdrop in an overflow room where Harris faced reporters afterward.

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Those who have participated in the events hail from the party’s more moderate wing: In addition to Harris, they include former vice president Joe Biden, Sens. Michael F. Bennet (D-Colo.), Cory Booker (D-N.J.), Amy Klobuchar (D-Minn.), and former candidate and congressman Beto O’Rourke (D-Tex.). South Bend, Ind., Mayor Pete Buttigieg, who is drawing more interest from Wall Street donors as a potential moderate alternative to Biden, is still considering whether to participate, a spokesman for his campaign said.