EUnet
EUnet was a very loose collaboration of individual European UNIX sites in the 1980s that evolved into the fully commercial entity EUnet International Ltd in 1996. It was sold to Qwest in 1998. EUnet played a decisive role in the adoption of TCP/IP in Europe beginning in 1988.
A separate company, EUnet GB, was founded in 1993 in the United Kingdom, which also played a role in the early commercial Internet in the UK.