Profound Raises $180M Series D Led by Sequoia and Kleiner Perkins
AI search optimization company Profound announced on September 16 that it has raised a $180 million Series D at a $260 million valuation, co-led by Sequoia Capital and Kleiner Perkins, with all existing investors participating. The company is expanding from AEO services into an agentic platform for marketers—a move worth watching, as it signals that "brand visibility in the AI search era" is becoming a new battleground for the marketing industry.
Confirmed
- Profound closed a $180 million Series D at a $260 million valuation, co-led by Sequoia and Kleiner Perkins.
- Investor Ditzikow said the round was completed under the leadership of James Cadwell and dB, with all existing shareholders doubling down, as the company grows from a New York startup into a global business.
- The company's positioning is expanding from AI search optimization (AEO) into an agentic platform for marketers, with core products including "AI Marketing" capabilities that proactively analyze data, spot opportunities, and execute on behalf of users.
- Engineer mrncst announced joining Profound, noting the team shipped a series of website updates.
- Investor perspective: AI is transforming every vertical industry the way it has transformed software engineering, and brand marketing is one of them.
Why it matters
- As AI search and answer engines (such as ChatGPT) become major information gateways, optimizing brand visibility in these channels (AEO) is seen as the next marketing must-have after SEO.
- The co-lead by Sequoia and KP plus unanimous follow-on from existing investors shows continued capital market conviction in "marketing infrastructure for the AI era."
2026-09-16 ~ 2026-09-16 · 6 related posts
Primary sources
- Profound raises $180M Series D co-led by Sequoia and Kleiner Perkins — soleio · 2026-09-16
- [source] Profound closes Series D with existing investors doubling down — ditzikow · 2026-09-16
- AI search optimization startup Profound raises $180M Series D — soleio · 2026-09-16
- AEO Startup Profound Raises $180M Series D Co-Led by Sequoia and Kleiner Perkins — ditzikow · 2026-09-16