Where was How to Succeed in Business Without Really Trying filmed?

Filming locations

• Towns & cities New York City United States Most populous city in the United States

  “The Union Carbide Building (most recently the JPMorgan Chase Tower) that stood at 270 Park Avenue in New York City from 1960 until 2019 was used in exterior shots as the headquarters for the "World-Wide Wicket Company" in the movie.” Wikipedia

Also per Wikipedia's article

The Wikipedia article names 2 more places. Each links to the sentence that says so.

Recorded only at country level

Also filmed in California, but the exact places are not known, so they are not on the map.

Also shot in these places

Set in the same places