Do my deals show up under my company name or under the platform's?

Your clients see your brand, not ours. Once you set your logo and brand color in Settings under the Branding tab, the client portal and signup pages show your company identity front and center. The platform stays in the background with minimal co-branding tucked into the corners. So when a client clicks your Apply Now link, the experience looks and feels like your platform, and your deals are presented under your company name, not the platform's.