All foreign nationals are required to have entry visas to travel to the Russian Federation. A visa to the Russian Federation is a document, permitting stay in Russia for a specific period of time. A visa lists entry/exit dates, your vital information, passport details and some information about the inviting party. Please note, that your Russian visa is an exit permit just like it's an entry permit.

To apply for a tourist visa you are required to provide your local embassy with a letter of invitation. These can be obtained from the hotel you are staying at when you book your accommodation for the conference.

To find the Russian Embassy in your country please click here.
 

Visa Agencies

The easiest way to obtain a visa is to use one of the many visa agencies. These agencies are committed to making things simple for you, so you can make the most of your trip.

This service provides you with an actual Russian visa ready to use for your travels. You won't have to stand in queues at the consulate, you needn't rely on partners or tour operators coming through with the required documents on time.  They obtain all the necessary visa support documentation, check, prepare and lodge your application with the Russian consulate and pick it up when it has been processed so no standing in queues at the embassy!

Below are a selection of websites that offer these services.
www.travel-direct.com/visas/russia
www.ruvisa.co.uk
www.TheVisaCompany.com
www.realrussia.co.uk