AdTech funding rounds

19 AdTech & martech funding rounds and investments, tracked by ATDb — newest first.

• S4S Ventures invests in Olyzon$10M2026-05-28
• GumGum raises $75M Series E for contextual intelligence$75M2023-11-14
• Scibids raises $22M Series B for AI bidding optimization$22M2023-11
• Wunderkind raises $76M Series D for performance marketing$76M2023-09
• StackAdapt raises $190M Series D at $1B+ valuation$190M2023-09
• Permutive raises $75M Series D for first-party data$75M2023-05
• InfoSum raises $15M Series B$15M2023-03-28
• Skai rebrands from Kenshoo and raises strategic investment from Sequoia2023-03-15
• Permutive raises $75M Series C$75M2022-06-14
• Scibids raises €2.2M Series A (Iris Capital)€2.2M2018-09-01
• Walmart invests in YouTube
• Walmart invests in TikTok
• Chrysalis Holdings invests in Moburst$11.8M
• Gary Vaynerchuk invests in Paul Street
• H2O.ai invests in H2O.ai Forward Deployed AI Lab
• Sinclair invests in IRCODE
• Plot raises $10M seed to scale AI social-video intelligence$10M
• TD7 invests in Hightouch
• DeepSeek