10. Central Nic (CNIC.L)
CentralNic is another tech company whose revenue growth rate in 2020 of 124% was boosted by acquisitions. But with an 18% organic growth and a solid operational profit, this is still an impressive growth case. Being an oldtimer in the domain and web services industry, CentralNic has annually doubled in size five out of the past six years through a combination of organic growth, winning new clients, and by acquisitions.