Is GLG legit?

I have been getting calls and emails from them. One of the emails I was sent says this:

"I just reviewed your background on LinkedIn and wanted to shoot you a quick message because I believe you would be an excellent fit for a paid consulting opportunity on Electronic Lab Notebooks & Lab Information Management Systems. A phone consultation through GLG is a 30-60 minute call arranged around your schedule, and is paid at an hourly rate which you set yourself."