Single Column Records Matching

In my dataset, I got a field with company names. I would like to check the similarity between those records within this single field. I thought Fuzzy Matching would be a good start. However, after using Fuzzy Matching, the population of records has reduced. Could anyone help me with how to solve this problem or give me any suggestions to check the similarity? 

Example:   Company Name

                  X1 Ltd

                  X2 Ltd

                  X1

X1 and X1 Ltd should be the same company name by checking the similarity

Thanks any helps in advance.