Everyone wants a piece of the social media pie, whether it's businesses building relationships with customers or VCs looking for their place in the next big thing. Visible Technologies has plans to benefit both -- and a fresh injection of cash to do it with.

Visible Technologies describes itself as a "provider of social media monitoring and engagement solutions" -- the description "well funded" also applies. The company has been through six rounds of funding, picking up some $46.5 million since it was founded in 2005, with the most recent closing just last week. Investor Growth Capital led the latest, a Series C round that garnered $22 million, including re-investments from WPP, Centurion Holdings, and Ignition Partners. In-Q-Tel -- the venture-capital wing of the U.S. government's spy agencies -- also participated, following an undisclosed investment in October.

The company's product line includes a selection of services and applications aimed at making it easier for businesses to make the leap into social media. It has built partnerships with a number of marketing and public relations firms, including M80, Beyond Interaction, Burson Digital, Wunderman, and Spring Creek Group, as well as with Omniture, a provider of small business software. Its main partner, and lone Series A investor, is the London-based WPP Group, one of the world's largest communication services firms.

The company says it will use the freshly-acquired funds to push further into the international market, with a particular focus on Europe. Its existing market is serving it quite nicely as well, with a customer list that includes Microsoft, Xerox, Hormel, AutoDesk, and twenty other Fortune 500 companies. It has a spot on a 500 list of its own, as entry 170 in the Inc. 500, and recently announced it will be at the center of social networking for the 52nd Annual Grammy Awards.