OpenCTI by Filigran
Reviews
Star rating
Rank in Threat Intelligence
Pros and cons
Pros
- Ease of Use
- Features
- Customer Support
- Integrations
- Integration Capabilities
- Easy Integrations
Cons
- Feature Limitations
- Complexity
- Poor Documentation
- Poor Customer Support
- Technical Issues
- Time-Consuming
Traffic & LLM citations
Source: G2 review data
Winning from
Key stats
Adoption by company size
| Segment | Share of reviews |
|---|---|
| Small Business | 13.0% |
| Mid-Market | 28.3% |
| Enterprise | 58.7% |
Quarterly history
| Quarter | Reviews | Star rating |
|---|---|---|
| 2025 Q1 | 3 | 4.7 |
| 2025 Q2 | 8 | 4.8 |
| 2025 Q3 | 2 | 5.0 |
| 2025 Q4 | 18 | 4.6 |
| 2026 Q1 | 8 | 4.5 |
| 2026 Q2 | 1 | 4.0 |
| 2026 Q3 | 8 | 4.6 |
Satisfaction ratings
What reviewers say
Easy Threat Intelligence Feed Integration with Great UI/UX at Scale
“Easy integration of Threat Intelligence feeds. Good UI/UX that help with easy flows. Best at large scale data management.”
Scalable, Clear Platform with Strong Integrations and Excellent Support
“The scalability and clarity of information within the platform. UI/UX is fine. A lot of integration for an MSSP : for example SIEM or BAS. No opinion on the price by my side. Global support, onboarding and human proximity are really appreciated.”
Friendly, Expert Onboarding and a Truly Beneficial Platform
“From the initial call through onboarding and the bi-weekly catch-ups, the whole team has been super friendly and helpful. The SMEs are incredibly knowledgeable about the platform. There was an initial learning curve when I first started using the platform, but once you’re up to s”