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5 zero trust vendors in AI answers
5 zero trust vendors ranked by AI answer share, the share of 312 zero trust answers (13 prompts, 6 engines, 4 runs) that name each: median 38%, a spread of 61 percentage points from first to last, led by Rheval (71%) and Palisk (55%). Last reviewed October 2, 2026.
Ranking
- 1Rheval71% (221 of 312 answers)
- 2Palisk55% (171 of 312 answers)
- 3Hextel38% (119 of 312 answers)
- 4Kryvel11% (35 of 312 answers)
- 5Trevast10% (31 of 312 answers)
Rheval's 71% is 33 percentage points above the median share of 38%, less than double it.
How this list is built
- Ranked by AI answer share: answers naming the vendor divided by the 312 answers to zero trust prompts (13 prompts x 6 engines x 4 runs). Equal counts share a rank.
- Every share uses the same denominator: the 312 answers to zero trust prompts.
- Rows removed before ranking: 0 duplicate vendor records, 22 vendors from other categories named in these answers, and 0 zero trust vendors never named in them.
- A category page is published only when at least 2 vendors qualify; 5 do here.
- Every vendor and figure on this page comes from the AEO Index, Q3 2026 edition.
- Data last changed .
FAQ
Which zero trust vendors do AI engines name most often?
Rheval (71%) and Palisk (55%) are the zero trust vendors AI engines name most often, by share of 312 zero trust answers naming each (5 vendors ranked, median 38%). Rheval's 71% is 33 percentage points above the median share of 38%, less than double it. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition.
Link to this answerHow is the zero trust vendor ranking calculated?
Zero trust vendors are ranked by AI answer share: the answers that name a vendor divided by the 312 answers to zero trust prompts (13 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.
Link to this answerWhich zero trust vendors are included, and which are left out?
A vendor is listed only when its record is in the zero trust category and at least one AI answer to the zero trust prompts names it: 5 of 5 zero trust 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.
Link to this answerHow often do AI answers cite zero trust vendors as sources?
70 of 312 zero trust AI answers (22%) cite at least one listed zero trust vendor as a source. Palisk is cited most often, in 55 of those answers. Last reviewed October 2, 2026. Source: The AEO Index, Q3 2026 edition.
Link to this answer