uLesson, the Nigerian education technology company, closed a $15 million series B investment from Nielsen Ventures and Tencent, as well as existing investors, Owl Ventures, TLcom Capital, and Founder Collective. This is the largest investment in an African edtech company.

With the capital, uLesson plans to continue to invest in product development, strengthen its core technology and add cohort-based learning features. Expanding on its flagship science and mathematics content, the compa...