| Website | nanosteelco.com |
| Category | CleanTech |
| Employees | |
| Description | Metals |
| Total | $25M |
| Unattributed, 8/09 EnerTech Capital | $8M |
| Unattributed, 10/11 | $17M |
NanoSteel is a Providence-based steel company, who touts the value of its super hard steel as a replacement for hard chrome coatings that is more environmentally friendly than chrome.