Marguerite Ward is a special to CNBC.com.
Some big tech names on the list will be familiar, while others may surprise you.
While a returnship does not guarantee a job, it does provide marketable skills, experts said. They also offer mentorship, experience and a chance to learn about new industry trends and operations.
Make More Happen
'People want control over their career, and so creating their own business for under $1,000 gives them the ability to test it out, to see what works and what doesn't,' career coach says.
Cindy Whitehead's new company will offer seed investing or consulting to start-ups that want to improve women's lives.
Can you guess which one fails the worst?