Best SIEM Software · 2026
Elastic Security vs 
Securonix Unified Defense SIEM Elastic Security vs Securonix Unified Defense SIEM: on our data-weighted scoring, Elastic Security edges ahead (8.2 vs 7.0/10). Elastic Security starts at Free tier available and is best for teams wanting an open, search-powered SIEM with consumption pricing and no per-endpoint fees; Securonix Unified Defense SIEM starts at Custom quote and is best for MSSPs and enterprises wanting a cloud-native SIEM with deep UEBA and GB/day consumption pricing. Choose Elastic Security for the stronger overall track record; consider Securonix Unified Defense SIEM if its pricing model or fit matches your environment better. Side-by-side table below.
Six criteria, each scored 0–10 on the same scale from real review data, public pricing and feature coverage. See our methodology →
| Criterion | Elastic Security | Securonix Unified Defense SIEM |
|---|---|---|
| Editorial | 8.2 | 7.0 |
| User reviews | 9.0 | 7.8 |
| Adoption | 3.7 | 3.0 |
| Affordability | 9.5 | 5.0 |
| Feature breadth | 6.0 | 6.0 |
| Ease of trial | 10.0 | 3.0 |
| Elastic Security | Securonix Unified Defense SIEM | |
|---|---|---|
| Starting price | Free tier available | Custom quote |
| Pricing model | per gb | quote |
| Free trial / tier | Free tier + 14 days | — |
| Best for | Teams wanting an open, search-powered SIEM with consumption pricing and no per-endpoint fees | MSSPs and enterprises wanting a cloud-native SIEM with deep UEBA and GB/day consumption pricing |
| Deployment | Cloud + self-host | Cloud |
| G2 rating | 4.5/5 (23) | 3.9/5 (13) |
| Capterra rating | — | — |
| Our score | 8.2 | 7.0 |
You need teams wanting an open, search-powered siem with consumption pricing and no per-endpoint fees.
You need mssps and enterprises wanting a cloud-native siem with deep ueba and gb/day consumption pricing.
Elastic Security bills on a per gb model from Free tier available (free tier available), while Securonix Unified Defense SIEM uses a quote model from Custom quote. Because the models differ, the cheaper option flips depending on your fleet size — model both at your seat/endpoint count.
Elastic Security ships 6 headline capabilities (Search-powered SIEM + analytics, Built-in EDR + cloud security, Prebuilt detection rules + MITRE ATT&CK, ML anomaly detection) and deploys Cloud + self-host. Securonix Unified Defense SIEM ships 6 (Cloud-native SIEM on Snowflake, UEBA behavioral analytics, Built-in SOAR + threat intel, GB/day consumption + DPM Flex), deploying Cloud.
Elastic Security holds 4.5/5 (~23 G2 reviews); Securonix Unified Defense SIEM holds 3.9/5 (~13 G2 reviews). On our data-weighted score, Elastic Security edges ahead (8.2 vs 7.0/10). Pick Securonix Unified Defense SIEM instead when mssps and enterprises wanting a cloud-native siem with deep ueba and gb/day consumption pricing. See Elastic Security alternatives or Securonix Unified Defense SIEM alternatives.
