Company signatures
Create company-wide Gmail signatures as an admin: keep colors, logos and layout consistent, and update banners for the whole company at once.
Admins of a company account can create signatures for everyone, keep colors, logos and layout consistent, and update banners for the whole company at once.

Note
Fill in user profile properties so names and job titles appear automatically. Logos and banners come from Google Drive.
Turn off Gmail’s own automatic signature first, as described in Before you start.