In the Exxon logo, after you realize the XX is really a double-cross, then you are left with EON, a form of the original greek AEON.
Look at the Amazon.com logo. There is an arrow from the A to the Z which forms ZAON or AON.
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In fact, including all the letters after you "move" the A according to the arrow, you are left with MAZAON. Maza (from the biblical term Mazzaroth, meaning zodiac) as well as Zaon, a form of Zion.
Now Verizon, one of the, if not the largest, telecom company in the US:

Zion is quite obviously intended here as well. Also note the right-angle symbol.