When computers are put out to pasture, Juan Yepez makes a profit. Yepez, chief executive of Mainstream Global in Lawrence, recycles used computers and other electronic devices. His company has 100 workers in Massachusetts, Colombia, and Peru, selling computers “to people who maybe couldn’t afford a new system,’’ said Yepez, 38. Mainstream Global and four other Massachusetts businesses will be included on the annual Inner City 100 list, which honors 100 successful urban firms throughout the US.
For more from BostonGlobe.com, sign up or log in below
To continue, please sign up or log in to BostonGlobe.com
Access the full articles and quality reporting of The Boston Globe at BostonGlobe.com
Sign up
Unlimited Access to BostonGlobe.com for 4 weeks for only 99¢.
Are you a Boston Globe home delivery subscriber?
Get FREE access as part of your print subscription.
BostonGlobe.com subscriber
Click to continue reading this article or to log in to BostonGlobe.com.


