Perplexity, Google and Microsoft lead a 30-company AI search landscape spanning six distinct markets

Asked:

“What are the top AI search companies in the world? Give me up to 30 companies. For each, list company name, link to their website, and the product summary”

A live-web scan on 2026-10-27 identified 30 leading AI-search providers — the full 30 requested — ranked by independent web-page mentions across comparison, official, technical, and news pages (duplicates normalized by company). Each company below carries its website, product, and a summary of what it searches and for whom. Mention counts measure prevalence in the scan, not product quality.

Perplexity AI tops the scan with 123 page mentions across 96 hosts, edging Google (121 mentions, 101 hosts) despite Google's wider host reach — ai-solutions.wiki

Enterprise and workplace search is the largest segment with 8 of 30 companies, led by Microsoft Copilot (110 mentions) and Glean (52) — copilot.cloud.microsoft

Six academic-research specialists make the list, from Consensus (49 mentions) to ResearchRabbit, showing demand for cited, paper-grounded answers — bentley.edu

Privacy-first search holds its own: Brave (61 mentions) and DuckDuckGo (32) both rank in the top half on independent or no-log indexes — brave.com

All 30 companies

#	Company	Product	Segment	Product summary	Mentions	Hosts	Source

Live-web scan researched 2026-10-27. 30 company rows, each backed by its own source page across 30 independent hosts (no URL supports more than one row, 3.3% max share). “Mentions” counts web pages naming the company in the scanned AI-search comparison, official, technical, and news results; “hosts” counts distinct referring sites. Ranking reflects prevalence in the scan, not product performance. Original category labels were grouped into six segments for the chart; the table keeps both via hover and summary text. Nothing was cut.

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