LogoSear.ch and IconSear.ch: search through zillions of SVG logos/icons directly linked to their source repos.

Repositório de Logos de Bancos em SVG

Public git repos with SVG logos

Logos from Wikipedia along with the code to find them

Public git repos with SVG logos & icons (part of the indices for logosear.ch & iconsear.ch)

Explore BIMI logos from around the internet

Free Download Vector Svg Files

SVG icons extracted from AWS architecture assets

Expanded zip file of the official Google Cloud product icons