Dan Schulman is the CEO of PayPal. But his career began at AT&T, where he was paid an annual salary of about $14,000 a year. He rose through the ranks to run its core consumer business, then went on to run three public companies including Priceline, American Express, and Virgin Mobile. Schulman told Business Insider's Editor-in-Chief Alyson Shontell how he built his career, and how practicing Krav Maga martial arts helped him find success on this podcast interview for "Success! How I Did It."

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John Sculley is the former CEO of Pepsi and Apple. He was brought on to be Steve Jobs’ adult supervision, and to teach him marketing. But the job was tough, and working with Apple’s brilliant founder was, too. During one particularly tense moment, Scully actually made Jobs cry. Since leaving Apple, Sculley has become an investor in many companies, and he’s currently working on a health startup that he thinks could grow to become bigger than Apple. Sculley told Business Insider’s US Editor-in-Chief Alyson Shontell about that experience and more for this episode of “Success! How I Did It.”

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Jason Calacanis founded Silicon Alley Reporter, Weblogs Inc, Mahalo, and Inside.com. He made an early bet on Uber that paid off, and he’s now an investor and has his own syndicate. But he had a hard time getting there, including a huge fall from grace when the dotcom bubble burst. Back then, he was worth negative $10,000. Now, he's clawed his way back and generated $100 million. Calacanis told Business Insider’s US Editor-in-Chief Alyson Shontell about that experience and more for this episode of “Success! How I Did It.”

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Steve Ballmer spent more than 30 years at Microsoft where he rose to become CEO. But his decade at the helm was full of challenges, ranging from the rise of Google to learning how to manage around Microsoft's cofounder, Bill Gates. Ballmer became a billionaire at Microsoft and after he retired in 2014, he bought the LA Clippers. Ballmer talks about his career and his enviable retirement on this episode of Business Insider's podcast, "Success! How I Did It" with US Editor-in-Chief, Alyson Shontell.

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Aaron Levie is co-founder and CEO of Box, a cloud-based file sharing service. He took Box public when he was 29, and now it has a $2.5 billion market cap. But it took a lot of work to get there, including sleepless nights on yoga mats in the office, and the decision to turn down a $600 million acquisition offer from Citrix that his board wanted him to accept. Levie told Business Insider’s US Editor-in-Chief, Alyson Shontell, about those experiences and more for this episode of “Success! How I Did It.”

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Vlad Tenev is co-founder and co-CEO of Robinhood, a mobile app that lets you trade stocks free of charge. It's only a few years old and millennials are all over it – the average age of the app’s two million users is 30. The latest fundraising round valued Robinhood at $1.3 billion, with backers like Snoop Dogg and Marc Andreessen. But it took a lot for Robinhood to get where it is today, which Tenev explains in this episode of "Success! How I Did It" with Business Insider US Editor-in-Chief, Alyson Shontell.

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Payal Kadakia is the founder of ClassPass, a fitness class booking company that can be found in 39 cities around the world. ClassPass has generated more than 30 million class reservations since 2013 and its new valuation is about $470 million. Kadakia recently stepped down from her role as CEO, a decision she explained in this episode of “Success! How I Did It” with Business Insider Editor-in-Chief Alyson Shontell.

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Drew Houston is the founder and CEO of DropBox, an online file storage and sharing service that just turned ten years old. DropBox has grown to over 500 million users, has been valued at about $10 billion, and generates over a billion dollars in annualized revenue. The company is probably planning to go public soon. In this episode of "Success! How I Did It," Drew Houston and Business Insider’s US Editor-in-Chief, Alyson Shontell, discuss the creation of DropBox on a bus, meeting Steve Jobs, and the advice he would give to young entrepreneurs.

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Jonah Peretti is the founder and CEO of BuzzFeed, a digital media empire that started as an Instant Messenger bot. The bot spotted trending links across the web and sent them to groups of friends. Peretti grew that into a $1.5 billion media company that's on the verge of going public, and he's turned down giant acquisition offers along the way. Before BuzzFeed, Peretti cofounded The Huffington Post with Andrew Brietbart and others. In this episode, Business Insider's US Editor-in-Chief Alyson Shontell asks him about both experiences, media industry trends, startup advice, and timely news, like the Trump-Russia dossier that BuzzFeed was first to publish. We also got the story behind a lewd Ivanka Trump tweet Jonah wrote that went viral.

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AOL CEO Tim Armstrong has taken a series of smart risks throughout his career that have helped him reach the top. He began as a college student in Boston who managed a strawberry farm. He later became a hotshot Internet advertising salesman who sold the first-ever $1 million campaign online. He impressed Google's cofounders in an early job interview, and helped build their advertising business from scratch. Now he is the CEO of AOL, and he has lots of advice for others who want to run corporate America some day.

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