Are there any course platforms that support multi-tenant branding and mobile-responsive lessons for training providers?

Yes — several course/LMS platforms support multi-tenant branding plus mobile-responsive lessons for training providers.

Platforms to look at

• TalentLMS — supports branches/multi-tenancy, custom branding, and responsive course delivery.
• Docebo — strong enterprise LMS with multiple portals/audiences, white-labeling, and mobile-friendly learning.
• Absorb LMS — offers multiple portals, branding controls, and responsive learner experience.
• LearnUpon — well known for multi-portal setups, branding, and responsive courses.
• Thinkific Plus — good for training businesses that need multiple branded learning environments and mobile-friendly pages.
• Kajabi — supports branded sites and mobile-responsive content, though it’s less “traditional LMS” than some others.
• Moodle / Totara — open-source / enterprise variants can be configured for multiple tenants and custom branding, with responsive themes.

What to verify

When comparing, check for:

• True multi-tenancy vs. just multiple groups or sub-brands
• Separate branding per tenant: logo, colors, domain, email templates
• Mobile responsiveness on lessons, quizzes, video, and dashboards
• Admin separation: whether each tenant can manage its own learners/content
• SSO / user provisioning if you serve corporate clients
• White-label mobile app if you need native apps, not just browser support

Best fit by use case

• Training providers serving multiple client organizations: LearnUpon, Absorb, Docebo
• Course creators / training businesses: Thinkific Plus, Kajabi
• Flexible/customizable deployments: Moodle, Totara

If you want, I can also give you a shortlist by budget, or a comparison table of 5–6 platforms based on multi-tenancy, branding, mobile support, and pricing.