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Head-to-head · Security Analytics

FortiSIEM vs Splunk Enterprise

  • Updated Oct 2026
  • Both researched from official sources
  • 1 check side by side
Higher score FortiSIEM #3 in Security Analytics 9.2/10 Pricing on request ✓ 0 of 4 features Visit FortiSIEM
Splunk Enterprise #7 in Security Analytics 8.8/10 Free plan · pricing on request · 60-day trial Free planFree trial✓ 0 of 4 features Visit Splunk

FortiSIEM leads on 0 checks, Splunk Enterprise on 0, and 1 is even. Who comes out ahead on the 1 yes/no, price and count check where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreFortiSIEM · 9.2/10
  • Free planonly Splunk Enterprise
  • Free trialonly Splunk Enterprise

FortiSIEM scores higher on our rubric for security analytics: 9.2 against 8.8 out of 10; our editors rank them #3 and #7.

FortiSIEM is the better fit for large hybrid IT/OT security operations. Splunk Enterprise is the better fit for enterprises prioritizing scalable log search.

  • FortiSIEM fits best

    Large hybrid IT/OT security operations

  • Splunk Enterprise fits best

    Enterprises prioritizing scalable log search

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Side by side

Feature FortiSIEM 9.2/10 Visit ↗ Splunk Enterprise 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #3 in Security Analytics #7 in Security Analytics
Best for Large hybrid IT/OT security operations Enterprises prioritizing scalable log search
Pricing model Paid Free plan + paid
Starting price Pricing on request Free plan · pricing on request · 60-day trial
Free plan Not checked yet ✓ (best)
Free trial — 60 days
Deployment Cloud, Self-hosted Self-hosted
Platforms Web Web, Windows, Linux, macOS
Integrations 6 integrations 8 integrations
Features FortiSIEM 0/4 · Splunk Enterprise 0/4
UEBA Not checked yet Not checked yet
Anomaly detection Not checked yet Not checked yet
Threat intelligence Not checked yet Not checked yet
Case management Not checked yet Not checked yet
Specs
Deployment Not checked yet Not checked yet
Data retention Not checked yet Not checked yet
Log ingestion limit Not checked yet Not checked yet
Our review
Pros
  • Correlates multivendor IT/OT events with real-time analytics and risk scoring
  • Combines UEBA and machine-learning detection with custom rules
  • Includes asset discovery, case response, SOAR playbooks, and compliance reporting
  • Collects and indexes logs and machine data from external sources.
  • Real-time search, live-tail viewing, dashboards, and visual analytics.
  • Routing, field extraction, REST APIs, and S3/HDFS archiving support.
Cons
  • Pricing requires contacting sales
  • Its broad IT/OT scope may exceed the needs of smaller, simpler teams
  • Third-party collection breadth can make ecosystem fit a key evaluation point
  • Paid pricing is quote-based and requires contacting sales.
  • Deployment is self-managed rather than vendor-hosted.
  • The Hadoop Data Roll archive feature is deprecated in version 9.4.
Our verdict

FortiSIEM is Fortinet’s security information and event management platform for enterprises, managed security service providers, and organizations running IT and operational technology environments. It collects and correlates events across…

Read the review →

Splunk Enterprise is a self-managed platform for collecting, indexing, searching, monitoring, and analyzing machine-generated data. It is intended for security, IT operations, DevOps, engineering, and compliance teams working with logs and…

Read the review →
  1. FortiSIEMSecurity Analytics 9.2Pricing on request
  2. Splunk EnterpriseSecurity Analytics 8.8Free plan · pricing on request · 60-day trial

Strengths and trade-offs

  • FortiSIEM — where it wins

    • Correlates multivendor IT/OT events with real-time analytics and risk scoring
    • Combines UEBA and machine-learning detection with custom rules
    • Includes asset discovery, case response, SOAR playbooks, and compliance reporting

    Where it doesn't

    • Pricing requires contacting sales
    • Its broad IT/OT scope may exceed the needs of smaller, simpler teams
    • Third-party collection breadth can make ecosystem fit a key evaluation point

  • Splunk Enterprise — where it wins

    • Collects and indexes logs and machine data from external sources.
    • Real-time search, live-tail viewing, dashboards, and visual analytics.
    • Routing, field extraction, REST APIs, and S3/HDFS archiving support.

    Where it doesn't

    • Paid pricing is quote-based and requires contacting sales.
    • Deployment is self-managed rather than vendor-hosted.
    • The Hadoop Data Roll archive feature is deprecated in version 9.4.
  • FortiSIEM9.2/10 · Pricing on request

    Broad IT/OT event analytics and response for complex security operations.

    Visit FortiSIEMFull verdict →
  • Splunk Enterprise8.8/10 · Free plan · pricing on request · 60-day trial

    A broad, self-managed machine-data platform for enterprise log search and analytics.

    Visit SplunkFull verdict →

More comparisons

All security analytics comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update