Final answer:
Guglielmo Marconi is credited with the invention of the radio. He successfully transmitted signals across the Atlantic Ocean and founded the Marconi Wireless Telegraph Company.
Step-by-step explanation:
The invention of the radio is attributed to Guglielmo Marconi. He was an Italian inventor who began experimenting with radio transmitters and receivers in 1894. Marconi successfully demonstrated the transmission of signals across the Atlantic Ocean in 1903, and his technology formed the basis for the Marconi Wireless Telegraph Company. His patents were challenged by Nikola Tesla and others, but Marconi's contributions to wireless technology remain significant.