Tower Cloud Inc., a wireless backhaul services provider, has secured $49 million in additional equity to fund its expansion into new markets throughout Florida, Georgia, South Carolina, and Alabama.

The latest round of funding was led by two of Tower Cloud’s existing investors, The Burton Partnership and Knology Inc. Tower Cloud’s other existing institutional investors include: Sutter Hill Ventures, El Dorado Ventures, Ballast Point Ventures, Kinetic Ventures, ITC Partners Fund and Noro-Moseley Partners.

For this round, two new investors joined the consortium, The Florida Growth Fund and CLR Investors. The funding was done in two phases with $13 million completed in January and $36 million completed in July. This funding follows a $20 million equity commitment by the same investor group in October 2009.