Lendama.ee - Air tickets and hotels directly bookable online. [Estonian, English, Russian] - http://www.lendama.ee/
Estland Travel - Information for travelers to Estonia, provides accommodation and travel advise. [English, German, Dutch] - http://www.estlandtravel.nl/
Estravel - Organizes accommodation and travel in the Baltics and abroad. Offices in major cities. [Estonian, English] - http://www.estravel.ee/
Reisi Ekspert - Estonian based agent offering accommodation, transport and sight seeing services in the Baltics and Russia. In English. Outbound services in Estonian. - http://www.reisiekspert.ee/
TravelEstonia - Packages for travelers coming to Estonia from overseas. Tag parties, business trips, spa getaways. - http://www.travelestonia.ee/
Est Tours - A UK based agency operated by Estonians that specializes in Estonia. Flights, hotels, packages and activities (including stags). - http://www.est-tours.co.uk/
Travibest - Accommodation, flights, ferries, car rental and Russian visas. Offices in Tallinn and Narva. [Estonian, English, Russian] - http://www.travibest.ee/