American Underground, the office space in Durham's American Tobacco Campus that offers cheaper rents to startups, is expanding.
A new space called Underground @Main Street will offer 22,000 square feet of space for startups at 201 W. Main Street. The building is owned by Self-Help Credit Union.
The space is expected to eventually host about 50 startups and support organizations. Fifteen tenants have already signed up.
Bandwidth, the Raleigh-based telecommunications company, and Yealink are providing the building with complimentary phone systems.
The American Underground space in American Tobacco opened in 2010. It includes 26,000 square feet of space in the lower levels of the Strickland and Crowe buildings.

Business reporter David Bracken came to the N&O in 2004. He covers commercial and residential real estate. Contact David at 919-829-4548 or