There aren't that many Alphabet acquisitions[1] that start with "W", compared to all the companies that start with "A":

      1 2
      1 6
      1 @
     28 A
     15 B
      8 C
     18 D
      6 E
     10 F
     10 G
      4 H
      9 I
      5 J
      5 K
      8 L
     14 M
      8 N
     10 O
     22 P
      4 Q
     13 R
     27 S
     12 T
      3 U
      5 V
      9 W
      1 Y
      8 Z

Normalizing these counts with respect to English character frequencies that appear in text[2], the top three unexpected company initials appear to be "Q", "J", and "P".

[1] https://en.wikipedia.org/wiki/List_of_mergers_and_acquisitio...

[2] https://en.wikipedia.org/wiki/Letter_frequency