Former Secretary of State Hillary Clinton has all but secured the Democratic nomination for president, and conversation has turned to her possible choices for a running mate.

Almost by definition, her running mate is likely to be another politician. But she might do better to look to the private sector for her down-the-ticket partner. After all, the candidacy of Donald Trump shows even a very mixed record in business impresses some voters in a way accomplishments in government don't. There aren't a lot of business leaders who can match a former reality TV personality like Trump for star power, but investor and entrepreneur Mark Cuban is one possibility.

According to Fox News, the "Shark Tank" star on Sunday said that while he would not be interested in running for president himself in the 2016 election, he'd be interested in serving as running mate for either Clinton or Trump.

Clinton reportedly told Chuck Todd on NBC's "Meet the Press" over the weekend that she would take Cuban's interest into account.

"I am very interested in that. And I appreciate his openness to it," she said on the show, per Business Insider.

It's anyone's guess who Clinton would choose to run as vice president, and a bit early to come to any conclusions when the Democratic Party hasn't even made its nomination. Given Clinton's interest in Cuban, here are some other business leaders she might consider as second in command.

Facebook COO Sheryl Sandberg

Rumors swirled in 2014 that the "Lean In" author might be eyeing a political run, perhaps for U.S. Senate or maybe even something bigger, according to the San Francisco Chronicle. The tech executive doesn't shy from politically charged topics like income inequality. She's known for pushing for greater income equality between the sexes, and she made a point during her recent commencement speech at UC Berkeley of saying that many don't have the financial support network they need to deal with the loss of a loved one. She's well-known and universally well-regarded, and Clinton has said there are women on her list of contenders for the VP role. But Sandberg is also still adjusting to life as a single parent after the passing of her husband, Dave Goldberg, and, at 46, she has time to gain political experience in a more junior capacity before possibly building a political career.

Salesforce CEO Marc Benioff

King of the Cloud Benioff is generally viewed as a super-philanthropist in the Bay Area, where he's known for his contributions to local hospitals and schools, and for encouraging other tech executives to make similar contributions. He's also stuck his neck out on LGBTQ issues, pushing fellow business leaders to take a stand against laws in the state of Indiana that critics say discriminate against gay and transgender people. Benioff says he was just advocating on behalf of concerned Salesforce employees in the state, an approach that shows he listens and knows how to lead. At the same time, he makes a point of not committing to either the Democratic or Republican party. Benioff raised more than $500,000 for President Barack Obama's second term election, but also gave $10,000 to Paul Ryan's run for House before the Republican was named Mitt Romney's running mate in the 2012 election. It's unclear how a running mate who plays the moderate would help or hurt Clinton. On the one hand, it could help her gain votes from Republicans looking for an alternative to voting for Trump; on the other, it could upset some supporters of Bernie Sanders who view Clinton as leaning too far to the right as it is.

Girls Who Code founder Reshma Saujani

Saujani has a resume that sets her up for a run for office. She's a lawyer and founder of an influential tech non-profit, and she has a track record for political involvement. With the tech world playing an increasingly influential role in mainstream politics (and not just in lobbying efforts) it seems like advocating for greater gender equality in tech through Girls Who Code and being separately involved in politics would make Saujani appealing. But Saujani as a pick in the current election seems like a longshot. She's still building name recognition outside the world of tech and, with one House run behind her (she lost), the 40-year-old has time to continue building her political career.