# Illumio Segmentation: how AI models rank it, November 2026

Gane Index, November 2026 Edition. Named in 56 judge labels across 1 category by 14 of 14 models. Page: https://www.gane.ai/index/it/vendors/illumio-segmentation

## Standing by category

| Category | Share | Rank | Negative rate | Labels |
|---|---|---|---|---|
| [Microsegmentation](https://www.gane.ai/index/it/network/microsegmentation/index.md) | 11% | 3 | 18% | 56 |

## What the models said for it

- "Best dedicated enterprise platform: Illumio is a strong default when the priority is workload-centric segmentation across heterogeneous hybrid environments." (Perplexity Sonar, Microsegmentation)
- "PeerSpot ranks Illumio Segmentation as the top rated solution in 2026 with the largest mind share, 9.0 rating and 21.9% mind share." (Muse Glimmer 30B, Microsegmentation)
- "A pioneer in microsegmentation... Illumio and Guardicore are leaders, with Illumio offering more mature policy engines" (Mistral Small, Microsegmentation)
- "the safest "best overall" microsegmentation choice is usually Illumio or Akamai Guardicore Segmentation" (GPT-5.4 mini, Microsegmentation)

## And against it

- "Avoid Enterprise Giants (like Illumio or Tufin) unless you have the scale" (Qwen 3.7 Flash, Microsegmentation)
- "Cons reported are: requires tuning in high-throughput environments; PCE can experience slowness at very large scale... Agent overhead and deployment time is a common friction." (Muse Glimmer 30B, Microsegmentation)
- "even the well-known players like Illumio face criticism primarily around a steep learning curve, not necessarily abandonment-level problems" (DeepSeek V4 Flash, Microsegmentation)
- "Instead of paying high six-figure annual licenses for enterprise microsegmentation suites like Illumio or Akamai Guardicore" (Gemini 3.5 Flash, Microsegmentation)

## By model

| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 1 | 0 | 2 |
| GPT-5.4 mini | 3 | 1 | 0 | 0 | 4 |
| Gemini 3.5 Flash | 1 | 3 | 1 | 1 | 6 |
| Perplexity Sonar | 1 | 2 | 0 | 0 | 3 |
| Grok 4.20 | 1 | 1 | 1 | 3 | 6 |
| Mistral Small | 1 | 1 | 1 | 1 | 4 |
| DeepSeek V4 Flash | 2 | 3 | 0 | 1 | 6 |
| Llama 4 Maverick | 1 | 1 | 1 | 0 | 3 |
| Qwen 3.7 Flash | 0 | 2 | 1 | 1 | 4 |
| Kimi K2 | 1 | 1 | 1 | 1 | 4 |
| GLM 4.7 FlashX | 0 | 2 | 2 | 0 | 4 |
| MiniMax M2.5 | 0 | 0 | 2 | 1 | 3 |
| GPT-6 Luna | 3 | 0 | 0 | 0 | 3 |
| Muse Glimmer 30B | 1 | 2 | 0 | 1 | 4 |

## Sources returned with these answers

The sites and pages cited by the answers that named Illumio Segmentation, from 165 of the 184 answers that named it (only the models that return a source list).

### Domains cited

- elisity.com: 68
- g2.com: 67
- gane.ai/index: 66
- aimultiple.com: 65
- akamai.com: 65
- zeronetworks.com: 65
- forrester.com: 60
- illumio.com: 58 (its own site)
- ordr.net: 50
- peerspot.com: 46

### Pages cited

- https://aimultiple.com/microsegmentation-tools: 59
- https://forrester.com/blogs/announcing-the-forrester-wave-microsegmentation-solutions-q3-2024: 42
- https://cyberpress.org/microsegmentation-tools-by-business-size: 39
- https://cybersecuritynews.com/best-microsegmentation-tools: 39
- https://forrester.com/report/the-forrester-wave-tm-microsegmentation-solutions-q3-2024/RES181302: 37
- https://zeronetworks.com/files/buyers-guides/zero-networks-microsegmentation-buyers-guide.pdf: 32
- https://forrester.com/report/the-microsegmentation-solutions-landscape-q2-2024/RES180760: 30
- https://g2.com/categories/microsegmentation/small-business: 30

## In its own words

What Illumio Segmentation's own pages state, read 2026-10-05. Stated by the vendor, not checked by the index.

- Positioning: Cloud and network breach containment (https://illumio.com/)
- For: small and midsize businesses (https://www.illumio.com/solutions/smb)
- Free plan or trial: free trial (https://www.illumio.com/solutions/smb)
- Certifications: Common Criteria, FedRAMP, FIPS 140-2, ISO 27001, ISO 27701, SOC 2 Type II
- Customers named: Oracle, Morgan Stanley, Cathay Pacific, ServiceNow, Alaska Airlines, eBay, Telhio Credit Union, Marriott Vacations Worldwide

## What it publishes

Every page illumio.com exposes, read 2026-10-05: 2908 addresses. By kind, pages and the last 90 days:

- blog: 839 pages, 15 in the last 90 days, latest 2026-10-01
- case study: 52 pages, 29 in the last 90 days, latest 2026-10-02
- webinar or virtual event: 27 pages, 1 in the last 90 days, latest 2026-09-15
- conference or event: 58 pages, 2 in the last 90 days, latest 2026-10-06
- report or ebook: 2 pages, 1 in the last 90 days, latest 2026-09-09
- comparison: 19 pages, 3 in the last 90 days, latest 2026-09-15
- template or tool: 4 pages, 2 in the last 90 days, latest 2026-09-15
- glossary or explainer: 15 pages, 3 in the last 90 days, latest 2026-09-23
- podcast or video: 57 pages, 31 in the last 90 days, latest 2026-09-30
- news or press: 756 pages, 79 in the last 90 days, latest 2026-10-02
- Recent: 2026-10-06 conference or event: Meet illumio at it sa expo congress 2026 in nuremberg https://www.illumio.com/blog/meet-illumio-at-it-sa-expo-congress-2026-in-nuremberg
- Recent: 2026-10-02 news or press: Ig report finds government cyber directives lack teeth https://www.illumio.com/news/ig-report-finds-government-cyber-directives-lack-teeth
- Recent: 2026-10-02 news or press: Industry perspectives on medicares openai cyber incident https://www.illumio.com/news/industry-perspectives-on-medicares-openai-cyber-incident
- Recent: 2026-10-02 news or press: Why bigger cybersecurity budgets arent reducing breaches https://www.illumio.com/news/why-bigger-cybersecurity-budgets-arent-reducing-breaches
- Recent: 2026-10-02 news or press: Why boards often misidentify the root issue after a breach https://www.illumio.com/news/why-boards-often-misidentify-the-root-issue-after-a-breach
- Recent: 2026-10-02 case study: Siriusxmcanada https://www.illumio.com/customers/siriusxmcanada

## Record

- Method: https://www.gane.ai/index/it/methodology
- License: CC BY 4.0. Cite as Gane Index, November 2026 Edition, www.gane.ai/index/it.