The LinkedIn Company Logo size (300×300px)
A LinkedIn company page logo is uploaded as a 300x300 pixel square. Unlike personal avatars, this logo is typically shown within a square or rounded-square frame rather than a full circle, and it appears on your company page, in the feed next to your posts, and in search results, so it is a core piece of your business identity on the platform.
Because the logo represents your brand across many small placements, clarity at reduced sizes is essential. A clean logomark on a solid or transparent-style background reads well, while a detailed logo with a tagline and fine text becomes illegible when LinkedIn shrinks it beside a post or in the who-to-follow list.
Center the mark with a little padding so it does not crowd the frame edges, and make sure it has enough contrast against LinkedIn's light interface. Uploading a crisp 300x300 keeps the logo sharp on the company page header where it shows larger, while still looking intentional at the tiny size used in feeds and search, covering the full range of placements.