# 4 cloud security vendors in AI answers Every vendor and figure on this page comes from the AEO Index, Q3 2026 edition. 4 cloud security vendors ranked by AI answer share, the share of 288 cloud security answers (12 prompts, 6 engines, 4 runs) that name each: median 41%, a spread of 38 percentage points from first to last, led by Fendril (43%) and Halvorn (42%). Last reviewed October 2, 2026. Ranked by AI answer share: answers naming the vendor divided by the 288 answers to cloud security prompts (12 prompts x 6 engines x 4 runs). Equal counts share a rank. | Rank | Vendor | AI answer share | | --- | --- | --- | | 1 | Fendril | 43% (124 of 288 answers) | | 2 | Halvorn | 42% (122 of 288 answers) | | 3 | Nyvero | 40% (116 of 288 answers) | | 4 | Thessix | 5% (15 of 288 answers) | Rows removed before ranking: 0 duplicate vendor records, 22 vendors from other categories named in these answers, and 0 cloud security vendors never named in them. ## FAQ ### Which cloud security vendors do AI engines name most often? [#cloud-security-top](https://www.theaeocompany.co/categories/cloud-security#cloud-security-top) Fendril (43%) and Halvorn (42%) are the cloud security vendors AI engines name most often, by share of 288 cloud security answers naming each (4 vendors ranked, median 41%). Fendril's share is about the same as the median: 43% vs 41%, a gap under 3 percentage points. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition. ### How is the cloud security vendor ranking calculated? [#cloud-security-ranked-by](https://www.theaeocompany.co/categories/cloud-security#cloud-security-ranked-by) Cloud security vendors are ranked by AI answer share: the answers that name a vendor divided by the 288 answers to cloud security prompts (12 prompts x 6 engines x 4 runs). Each vendor counts at most once per answer, and vendors with equal counts share a rank. Source: The AEO Index, Q3 2026 edition. ### Which cloud security vendors are included, and which are left out? [#cloud-security-gate](https://www.theaeocompany.co/categories/cloud-security#cloud-security-gate) A vendor is listed only when its record is in the cloud security category and at least one AI answer to the cloud security prompts names it: 4 of 4 cloud security vendors qualify. 22 vendors from other categories named in these answers are left out. A category page is published only when at least 2 vendors qualify. Source: The AEO Index, Q3 2026 edition. ### How often do AI answers cite cloud security vendors as sources? [#cloud-security-citations](https://www.theaeocompany.co/categories/cloud-security#cloud-security-citations) 0 of 288 cloud security AI answers (0%) cite at least one listed cloud security vendor as a source. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition. ## Other categories in Cybersecurity - Email security (5 vendors): https://www.theaeocompany.co/categories/email-security - Endpoint security (4 vendors): https://www.theaeocompany.co/categories/endpoint-security - Identity and access (4 vendors): https://www.theaeocompany.co/categories/identity-and-access - SOC 2 automation (5 vendors): https://www.theaeocompany.co/categories/soc-2-automation - Zero trust (5 vendors): https://www.theaeocompany.co/categories/zero-trust ## More - All categories: https://www.theaeocompany.co/categories - 27 Cybersecurity Brands Ranked by AI Answer Share (2026): https://www.theaeocompany.co/lists/cybersecurity-ai-answer-share