Vidyo, provider of HD, multi-party video conferencing solutions, has raised $11.5 million in new funding, according to an SEC filing. The company has not yet confirmed the funding.

“Related Persons” listed on the Form D include Ofer Shapiro, Vidyo CEO and co-founder; Avery More, chairman and co-founder; Guy Sella, general partner at Star Ventures; Jon Bayless, general partner at Sevin Rosen Funds; Joshua Ruch, managing partner at Rho Ventures; Doug Carlisle, managing partner at Menlo Ventures; Ezra Sofer, Vidyo CFO; and Dror Futter, Vidyo general counsel. None of these names, including those of the investors, are new to the company.

Added to a $25 million round in April 2010, a $15 million round in March 2009 and others, Vidyo has now raised $74.5 million in total funding.

Vidyo aims to bring higher quality video to the enterprise at a lower cost to the company by arming itself with a slew of video conferencing products. VidyoPortal is Web-based video conferencing software used to initiate meetings. VidyoVoice enables voice-only participants to join Vidyo conferences directly from their mobile phones. There’s even VidyoGateway, a system that helps clients upgrade their legacy system without having to trash it.

Not just for the enterprise, Vidyo also targets small- to medium-sized businesses and non-profit associations in education, healthcare and a variety of other sectors. Basically any organization that needs video conferencing capabilities can take advantage of Vidyo.

On its Case Studies page, the company lists some pretty diverse clients: the Italian police, the Fourth Circuit Public Defender’s Office in Florida, Feeding America (a hunger relief charity) and Stephen F. Austin State University. Big name clients include Google, Hitach, HP and Intel.

Vidyo is headquartered in Hackensack, New Jersey.