Aleph did not reveal any financial terms of the investment but said Twitter's stake buy would help the company expand its educational tech platform.
Emerging markets-focused Aleph, which helps large digital platforms connect with advertisers and customers, counts Meta Platforms Inc, Spotify Technology SA and Microsoft Corp-owned, LinkedIn among its customers.
Aleph is Ad Dynamo's parent company and is based in Cape Town. Ad Dynamo has been Twitter’s sales partner in Africa since 2013.
Despite wide-ranging supply chain disruptions that delayed products from reaching shelves and a user privacy clampdown by Apple Inc that many feared would disrupt mobile advertising, brands have continued to advertise online.
Reuters, the news and media division of Thomson Reuters, is the world's largest multimedia news provider, reaching billions of people worldwide every day.
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