Exxon -> Sexxon (I got my mom’s permission before posting this)

“Dr. Peeper.” (Not exactly adding a letter, but the best I could come up with.)

bred bull.

SAudi might be some kind of cultural appropriation?

The home despot where dictators get more done!

ICBM… A very different kind of international business

GAPE opens up more than stores.

I looked through too many brand names to come up with these.

This is a very real brand sold in Germany that always reminds me of Randy Marsh:

HUgg :)

Son(n)y

Cro(o)cs

Yankee (S)candle

(W)Etsy

Fapple

Not so much add/remove as it is “change”.

Ayds:

https://granvarones.com/quick-history-of-how-aids-ended-ayds-the-diet-supplement

As(s)us

Fed(s)Ex

Pe(e)psy

Twee(b)ter (lol)

F(U)-Droid

Vis(t)a (if that counts)

Tiffany & Co(p) (kekw)

Ora(l)cle

As(s)rock

Ga(y)torade

Sutco. Slutco. I think about this every time I see one of their trucks drive by.

I couldn’t think of anything other than replacing the g in king to make Burger Kink.

Doesn’t necessarily fit, but it’s the best I could come up with.

There’s already a bearing company called F.A.G.