Sources: Temu became Meta's top advertiser by revenue in 2023 by spending nearly $2B, and became one of Google's top five advertisers by spending in 2023 (Wall Street Journal)

Wall Street Journal:

Sources: Temu became Meta’s top advertiser by revenue in 2023 by spending nearly $2B, and became one of Google’s top five advertisers by spending in 2023  —  The e-commerce platform’s parent company spent nearly $2 billion at Meta last year and it was a top advertiser at Google