The BulgariaSat-1 satellite, which will provide television and communication services to Europe and North Africa, was launched by SpaceX from NASA's Kennedy Space Centre in Florida.
The satellite could be also used in force majeure situations - accidents due to natural disasters - such as earthquakes, storms and floods when land-based networks are not operational.
"When we started this space project more than 10 years ago, we clearly knew that what was need to complete it successfully was patience, commitment and a strong team," said Maxim Zayakov, CEO of Bulgaria Sat and Bulsatcom.
"We launched our BulgariaSat-1, we stepped up a as one of the leading space nations in Europe and opened the path for the development of the related Bulgarian high-tech sectors and talented specialists."
The satellite will be positioned into orbit at 36,000km above the Earth and be operational up to 20 years. Over the next month, the ground control room will carry out the necessary tests and settings to make the satellite operationally ready to broadcast.