Spanning Cloud Apps has tripled its funding after an undisclosed investor led the company's latest round of financing. The developer of Spanning Backup for Google Apps has added another $6 million to its coffers to build out its direct sales team and its reseller channel.

Existing investor Foundry Group of Boulder, Colo., participated in the Series B funding, which has brought the total raised funds for Spanning Cloud up to $9 million.

"We've spent the last two years building the best backup system on the planet for the millions of businesses that use Google Apps," said Charlie Wood, CEO and founder of Spanning, in a prepared statement. "This infusion of capital will allow us to accelerate the buildout of our direct sales team and reseller channel, while extending the product lead we've established over our competitors. It also provides us with an important strategic partner."

The Austin-based company currently has a staff of 20, but with this infusion of cash, it plans to increase that number to 50 by the end of the year.

Spanning was formed in 2010 to provide Google Apps users with cloud-based backup and restore services. Its application provides customers with backup and recovery of Google Apps including Gmail, Drive, Sites, Calendar and Contacts. Spanning Backup for Google Apps does constant monitoring of data backup to enable administrators to be proactive in correcting issues before they become problems.

This latest investment in a cloud company is one of many. Our inboxes have seemed to fill up with cloud funding announcements lately, so it looks like venture capital firms are currently on a roll—and they're focusing on growing cloud computing companies. Take a look the recent funding received by both MapR and ProfitBricks as good examples of increased investment in cloud companies. Chances are, there will be more examples throughout the rest of the year.