21C offers AI-powered educational platforms that enhance maths learning through personalized, interactive tools for students and educators.
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"21C — Funding & Investors." VCBacked, January 30, 2025, https://www.vcbacked.co/company/21c. Accessed July 4, 2026.
VCBacked. (2025). 21C — Funding & Investors. Retrieved July 4, 2026, from https://www.vcbacked.co/company/21c
{{cite web |title=21C — Funding & Investors |url=https://www.vcbacked.co/company/21c |website=VCBacked |access-date=July 4, 2026}}Profile data sourced and verified per the VCBacked methodology. Last funding round dated .