Observed Signal · Sep 15, 2026 · Funding · Source: techcrunch · Impact: 4/5 · Sentiment: Positive
AI search marketing startup Profound raises $180M Series D at $1.8B valuation
Profound, a marketing software startup that helps brands appear in AI search results, announced a $180 million Series D funding round at a $1.8 billion valuation, just seven months after its $96 million Series C. The round was co-led by Sequoia and Kleiner Perkins, with participation from existing investors Lightspeed Venture Partners, Khosla Ventures, and South Park Commons. The company, which launched two years ago as an analytics platform, now focuses on generative engine optimization (GEO) and answer engine optimization (AEO), helping businesses understand how AI systems influence consumer brand discovery. Profound reports revenue growth of 3x in the past six months and serves over 1,000 enterprise customers, including Comcast, The Estée Lauder Companies, and Walmart. The funding will likely support expansion and product development in the rapidly growing AI search optimization space.
This funding round highlights the growing importance of AI search optimization (GEO/AEO) in the marketing technology landscape, with a major startup reaching unicorn status, indicating significant market momentum and investment interest.
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Key Takeaways & Evidence Grounding
- Profound raised $180 million in Series D funding.
- The valuation is $1.8 billion, making Profound a unicorn.
- Sequoia and Kleiner Perkins co-led the round.
- Existing investors including Lightspeed, Khosla, and South Park Commons participated.
- Profound's revenue has tripled in the past six months, with over 1,000 enterprise customers including Comcast, Estée Lauder, and Walmart.
Connected Companies & Entities
8 Entities mapped“Profound, which builds marketing software to help brands appear in AI search results, on Tuesday said it has raised a $180 million Series D.”
“Sequoia and Kleiner Perkins led the round.”
“Sequoia and Kleiner Perkins led the round.”
“existing investors — including Lightspeed Venture Partners, Khosla Ventures, and South Park Commons — also participated.”
“existing investors — including Lightspeed Venture Partners, Khosla Ventures, and South Park Commons — also participated.”
“it now has more than 1,000 enterprise customers, which include Comcast, The Estée Lauder Companies, and Walmart.”
“it now has more than 1,000 enterprise customers, which include Comcast, The Estée Lauder Companies, and Walmart.”
“it now has more than 1,000 enterprise customers, which include Comcast, The Estée Lauder Companies, and Walmart.”
Ontology Mapping & Concepts
Related Market Signals & Shifts
Recent verified developments and strategic activity across this market segment.
Profound Launches Profound Index for AI Search Visibility
Profound announced the launch of the Profound Index at Zero Click New York, positioning the product as an industry benchmark for brand visibility inside AI-generated answers and recommendations. Built on more than 1.5 billion real-user prompts across 50+ industries and major LLMs, the Index provides daily updates and visibility into signals that drive AI Search performance. Early findings show model updates reshaping which brands appear in AI answers — for example, competitors are gaining visibility inside ChatGPT 5.5 and brands such as IKEA, Travelocity, Ambetter, Humana and Aetna showed significant platform-specific movement. The Profound Index is available immediately to Profound customers (full data) with a preview experience for non-customers via registration.
Profound raises $180M in Series D to build your AI Marketer
Profound has raised $180M to build the AI platform for marketing. CEO James Cadwallader writes why AI is creating more work for marketers, and how AI Marketer brings company context and agents together to help teams do it.
Avenue Z Named Profound Certified Agency Partner
Avenue Z, an AEO-focused digital marketing and PR agency, has been named a Certified Agency Partner by Profound and is part of a select founding cohort authorized to deploy Profound’s AI-search discoverability tools. The certification recognizes Avenue Z’s expertise in AI Search Optimization (AEO) and AEO-for-PR capabilities and integrates Profound’s data intelligence into the agency’s offering. The release cites Profound’s $96 million Series C (led by Lightspeed with participation from Sequoia Capital and Kleiner Perkins) and notes Profound is used by brands such as Target, Walmart and Charlotte Tilbury. The announcement positions the partnership as a way for brands to prepare for expanding generative-search monetization, which industry estimates project could exceed $100 billion by 2030.
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