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Splunk Enterprise Security vs Sumo Logic Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

ROI

Sentiment score
7.2
Splunk Enterprise Security boosts efficiency and ROI with enhanced insights and automation, despite potential cost concerns.
Sentiment score
7.6
Sumo Logic Security improves troubleshooting and operational efficiency, with users finding ROI generally justifies its continued use.
I have noticed a return on investment with Splunk Enterprise Security, as it delivers substantial value for money.
Customers see the value in investing in this solution, particularly when it helps resolve issues quickly, turning a potential 20-hour response into one hour.
Splunk's cost is justified for large environments with extensive assets.
 

Customer Service

Sentiment score
6.7
Splunk Enterprise Security support is generally positive, but response times vary, and complex issues may require escalation.
Sentiment score
7.4
Sumo Logic Security's support is responsive and helpful but can occasionally delay up to 48 hours; no phone support mentioned.
If you want to write your own correlation rules, it is very difficult to do, and you need Splunk's support to write new correlation rules for the SIEM tool.
They try to close issues as soon as possible, often just offering documentation links.
They are responsive and effectively resolve issues.
They have a response time of forty-eight hours, which is not instant support.
 

Scalability Issues

Sentiment score
7.7
Splunk Enterprise Security excels in scalable performance, adaptable across environments, though scaling can increase costs.
Sentiment score
8.1
Sumo Logic Security offers scalable, cloud-based solutions praised for integration, performance, and flexibility across diverse infrastructures, with positive user feedback.
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
It is easy to scale.
It's big in a Central European context, and small from a Splunk North American context.
The tool has high scalability because everything is based in the cloud.
 

Stability Issues

Sentiment score
7.9
Splunk Enterprise Security is praised for its stability and performance, though updates and heavy usage can cause minor issues.
Sentiment score
8.1
Sumo Logic Security is highly praised for stability, reliability, and maintaining performance under load, with minimal latency issues.
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
It provides a stable environment but needs to integrate with ITSM platforms to achieve better visibility.
It is very stable.
If there are many records, the system may stop or the UI may become unresponsive.
 

Room For Improvement

Splunk Enterprise Security struggles with UI complexity, costly licenses, integration challenges, setup complications, and limited customization and AI features.
Sumo Logic Security faces challenges in performance, automation, support, API integration, and high costs, needing improvements across multiple areas.
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Splunk Enterprise Security is not something that automatically picks things; you have to set up use cases, update data models, and link the right use cases to the right data models for those detections to happen.
What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel.
The correlation rules and log mapping are not as mature compared to other SIM tools like Splunk.
This is crucial to sell to the government and financial sectors as they require data retention within each country.
 

Setup Cost

Splunk Enterprise Security is costly for smaller businesses, with pricing challenges based on data volume impacting budget considerations.
Sumo Logic Security users find AWS Marketplace simplifies billing and offers a competitive, cost-effective pricing structure despite scalability concerns.
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
Splunk is priced higher than other solutions.
This makes it more cost-effective because other solutions often include a third element in their pricing.
 

Valuable Features

Splunk Enterprise Security offers robust search, effective integration, and adaptability for enhanced visibility and threat management in diverse environments.
Sumo Logic Security offers robust threat intelligence, real-time observability, and seamless integrations, making it essential for SecOps teams.
This capability is useful for performance monitoring and issue identification.
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
They have approximately 50,000 predefined correlation rules.
If we cannot find the data in other tools, like email security or NDR, we can fetch those logs in the Log Analytics platform of Sumo Logic.
Sumo Logic Security offers a single dashboard and customization, which are the most valuable features.
 

Categories and Ranking

Splunk Enterprise Security
Ranking in Log Management
2nd
Ranking in Security Information and Event Management (SIEM)
1st
Average Rating
8.4
Reviews Sentiment
7.6
Number of Reviews
308
Ranking in other categories
IT Operations Analytics (1st)
Sumo Logic Security
Ranking in Log Management
24th
Ranking in Security Information and Event Management (SIEM)
23rd
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
20
Ranking in other categories
Security Orchestration Automation and Response (SOAR) (15th)
 

Mindshare comparison

As of May 2025, in the Security Information and Event Management (SIEM) category, the mindshare of Splunk Enterprise Security is 9.5%, down from 12.6% compared to the previous year. The mindshare of Sumo Logic Security is 1.0%, up from 0.9% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM)
 

Featured Reviews

ROBERT-CHRISTIAN - PeerSpot reviewer
Has many predefined correlation rules and is brilliant for investigation and log analysis
It is very complicated to write your own correlation rules without the help of Splunk support. What Splunk could do better is to create an API to the standard SIEM tools, such as Microsoft Sentinel. The idea would be to make it less painful. In ELK Stack, Kibana is the query language with which you can search log files. I believe Splunk has also a query language in which they search their log files, but once you have identified the log file that you want to use for further security correlation, you want to very quickly transport that into your SIEM tool, such as Microsoft Sentinel. That is something that Splunk could make a little bit less painful because it is a lot of effort to find that log file and forward it. An API with Microsoft Sentinel or a similar SIEM tool would be a good idea.
WilsonAitan - PeerSpot reviewer
Offers a single dashboard with customizable features and a cost-effective pricing structure
Sumo Logic Security offers a single dashboard and customization, which are the most valuable features. Additionally, it has a cost-effective structure because it is based on data storage and the number of scans, rather than uploading data. This cost model impacts the customers positively by offering a more straightforward pricing structure.
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Comparison Review

VS
Feb 26, 2015
HP ArcSight vs. IBM QRadar vs. ​McAfee Nitro vs. Splunk vs. RSA Security vs. LogRhythm
We at Infosecnirvana.com have done several posts on SIEM. After the Dummies Guide on SIEM, we are following it up with a SIEM Product Comparison – 101 deck. So, here it is for your viewing pleasure. Let me know what you think by posting your comments below. The key products compared here are…
 

Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
14%
Manufacturing Company
8%
Government
8%
Computer Software Company
15%
Financial Services Firm
12%
Government
8%
Manufacturing Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What SOC product do you recommend?
For tools I’d recommend: -SIEM- LogRhythm -SOAR- Palo Alto XSOAR Doing commercial w/o both (or at least an XDR) is asking to miss details that are critical, and ending up a statistic. Also, rememb...
What is a better choice, Splunk or Azure Sentinel?
It would really depend on (1) which logs you need to ingest and (2) what are your use cases Splunk is easy for ingestion of anything, but the charge per GB/Day Indexed and it gets expensive as log ...
How does Splunk compare with Azure Monitor?
Splunk handles a high amount of data very well. We use Splunk to capture information and as an aggregator for monitoring information from different sources. Splunk is very good at alerting us if we...
What do you like most about Sumo Logic Security?
Sumo Logic Security is a good solution for searching the logs and identifying the issues.
What is your experience regarding pricing and costs for Sumo Logic Security?
The pricing structure for Sumo Logic Security is based on two elements: data storage and the number of scans. This makes it more cost-effective because other solutions often include a third element...
What needs improvement with Sumo Logic Security?
In terms of improvement, feedback indicates there is a need for a local data center in my country. This is crucial to sell to the government and financial sectors as they require data retention wit...
 

Overview

 

Sample Customers

Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
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Find out what your peers are saying about Splunk Enterprise Security vs. Sumo Logic Security and other solutions. Updated: April 2025.
851,491 professionals have used our research since 2012.