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IBM Security QRadar vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Oct 19, 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
6.8
IBM Security QRadar is praised for its cost-effectiveness, quick ROI, and efficiency in enhancing security and threat management.
Sentiment score
6.3
Splunk Enterprise Security improves efficiency and threat detection, reducing time and costs despite its expense for larger organizations.
With SOAR, the workflow takes one minute or less to complete the analysis.
CyberSecurity Architects at VaporVM
AWS gives the chance to implement a solution out of the box with use cases that are already in IBM Security QRadar.
Strategic Account Executive at a computer software company with 51-200 employees
I have seen a return on investment; I can share that it includes time saved, money saved, and fewer employees needed.
Cybersecurity Team Leader at EMAK For Integrated Solutions
The documentation for Splunk Enterprise Security is outstanding. It is well-organized and easy to access.
DevOps&Cloud Engineer Mentee at CertDirectory.io
We couldn't calculate what would have been the cost if they had actually gotten compromised; however, they were in the process, so every investment was returned immediately.
Business Development Manager at Axians Germany
On average, my SecOps team takes probably at least a quarter of the time, if not more, to remediate security incidents with Splunk Enterprise Security compared to our previous solution.
IT Orchestration Architect at Penn State University
 

Customer Service

Sentiment score
6.0
IBM Security QRadar support is knowledgeable but inconsistent; satisfaction is higher with specialized contacts or local partners.
Sentiment score
6.2
Splunk Enterprise Security is highly rated for support expertise, though some users report delays and inconsistent experiences.
They assist with advanced issues, such as hardware or other problems, that are not part of standard operations.
Network and Security Architect at Deutsche Telekom
Support needs to understand the issue first, then escalate it to the engineering team.
CyberSecurity Architects at VaporVM
The support is really good; for instance, if a critical ticket is submitted, you will get paged right away as it gets logged, and their analyst will look into it, letting you know as soon as possible so you can work on it.
Cyber Security Intern at a retailer with 1,001-5,000 employees
We have paid for Splunk support, and we’re not on the free tier hoping for assistance; we are a significant customer and invest a lot in this service.
Senior System Administrator at a tech services company with 5,001-10,000 employees
I have had nothing but good experiences with Splunk support, receiving timely and helpful replies.
Cyber Security Associate at SAP
We've had great customer success managers who have helped us navigate scaling from 600 gigs to 30 terabytes.
Principal Engineer at Aviatrix
 

Scalability Issues

Sentiment score
7.3
IBM Security QRadar offers scalable architecture, supporting seamless growth with flexible management and high performance for enterprises.
Sentiment score
7.3
Splunk Enterprise Security offers excellent scalability, managing large data volumes and supporting effortless growth across industries.
For EPS license, if you increase or exceed the EPS license, you cannot receive events.
CyberSecurity Architects at VaporVM
IBM Security QRadar's scalability is great; you can have a new collector to deploy if you have increased EPS per second.
Cybersecurity Team Leader at EMAK For Integrated Solutions
We currently rely on disaster recovery and backup recovery, which takes time to recover, during which you're basically blind, so I'm pushing my leadership team to switch over to a clustering environment for constant availability.
IT Security Engineer at a financial services firm with 201-500 employees
It is one of the things that separates it from other tooling, and if not, it is the most scalable solution out there.
Systems Development Engineer at a tech vendor with 10,001+ employees
They struggle a bit with pure virtual environments, but in terms of how much they can handle, it is pretty good.
CTO at a tech vendor with 10,001+ employees
 

Stability Issues

Sentiment score
7.6
IBM Security QRadar is stable and reliable, with minor bugs and scaling challenges in large organizations being quickly resolved.
Sentiment score
7.5
Splunk Enterprise Security is praised for stability and reliability, despite challenges with resource demands and custom configurations.
On cloud, you don't see any disconnections or instability.
SOC Engineer at a outsourcing company with 10,001+ employees
I think QRadar is stable and currently satisfies my needs.
Architect of Cybersecurity at ASSIST - Software Services
The product has been stable so far.
Information Security Analyst at Banglalink
They test it very thoroughly before release, and our customers have Splunk running for months without issues.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk has been very reliable and very consistent.
Principal Engineer at Aviatrix
We need more SMEs, and there is no mechanism to tell us about indexer or search head issues.
Senior Manager at a financial services firm with 10,001+ employees
 

Room For Improvement

IBM Security QRadar faces challenges with integration, cost, complexity, support, automation, AI, user interface, and storage limitations.
Splunk Enterprise Security needs UI improvements, better integration, richer documentation, competitive pricing, and enhanced AI and threat detection.
We receive logs from different types of devices and need a way to correlate them effectively.
Network and Security Architect at Deutsche Telekom
If AI-related support can suggest rules and integrate with existing security devices like MD, IPS, this SIM can create more relevant rules.
Information Security Analyst at Banglalink
IBM Security QRadar does not support Canvas, so we had to create custom scripts and workarounds to pull logs from Canvas.
CyberSecurity Architects at VaporVM
Improving the infrastructure behind Splunk Enterprise Security is vital—enhanced cores, CPUs, and memory should be prioritized to support better processing power.
Resident Consultant (Security Analyst) at helpag
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.
Security & Risk Analyst at a computer software company with 1,001-5,000 employees
For any future enhancements or features, such as MLTK and SOAR platform integration, we need more visibility, training, and certification for the skilled professionals who are working.
Security Consultant at Matiq
 

Setup Cost

IBM Security QRadar is costly but valued for its features, with pricing based on EPS, ideal for large enterprises.
Splunk Enterprise Security offers robust insights but can be costly for high data volumes, challenging affordability for smaller businesses.
Splunk is more expensive than IBM Security QRadar.
CyberSecurity Architects at VaporVM
It was costly mainly because of the value you can get right now compared to other solutions.
CTO at Sabyk
It depends on how much you want to spend.
Strategic Account Executive at a computer software company with 51-200 employees
I saw clients spend two million dollars a year just feeding data into the Splunk solution.
CTO at a tech vendor with 10,001+ employees
The platform requires significant financial investment and resources, making it expensive despite its comprehensive features.
System Engineer - Security Presales at Raya Integration
I find it to be affordable, which is why every industry uses it.
Vice President Research And Development at OSINT Ambition
 

Valuable Features

IBM Security QRadar offers scalable log management, seamless integration, and advanced analytics for enhanced threat detection and compliance.
Splunk Enterprise Security offers real-time threat detection, customization, and integration, enhancing security operations and data management capabilities.
Recently, I faced an incident, a cyber incident, and it was detected in real time.
Information Security Analyst at Banglalink
IBM Security QRadar gives the opportunity to improve the time to market of the releases with a great evaluation of cybersecurity breaches.
Strategic Account Executive at a computer software company with 51-200 employees
Compared to ArcSight, Splunk, or any other SIEM tools where you need their processing language such as structured query language, SPL, and in Sentinel there is KQL query languages, IBM Security QRadar doesn't require reliance on query languages.
SOC Engineer at a outsourcing company with 10,001+ employees
This capability is useful for performance monitoring and issue identification.
Staff Performance Engineer at ServiceNow
I assess Splunk Enterprise Security's insider threat detection capabilities for helping to find unknown threats and anomalous user behavior as great.
Splunk System Engineer at a non-tech company with 11-50 employees
Splunk Enterprise Security provides the foundation for unified threat detection, investigation, and response, enabling fast identification of critical issues.
Specialist-Infrastructure Opertions at Allianz Technology
 

Categories and Ranking

IBM Security QRadar
Ranking in Log Management
7th
Ranking in Security Information and Event Management (SIEM)
3rd
Average Rating
8.0
Reviews Sentiment
6.7
Number of Reviews
217
Ranking in other categories
User Entity Behavior Analytics (UEBA) (1st), Endpoint Detection and Response (EDR) (17th), Security Orchestration Automation and Response (SOAR) (4th), Managed Detection and Response (MDR) (7th), Extended Detection and Response (XDR) (11th)
Splunk Enterprise Security
Ranking in Log Management
2nd
Ranking in Security Information and Event Management (SIEM)
1st
Average Rating
8.4
Reviews Sentiment
7.3
Number of Reviews
375
Ranking in other categories
IT Operations Analytics (1st)
 

Mindshare comparison

As of January 2026, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Security QRadar is 5.6%, down from 9.0% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.4%, down from 10.0% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.4%
IBM Security QRadar5.6%
Other87.0%
Security Information and Event Management (SIEM)
 

Q&A Highlights

Navin Rehnius - PeerSpot reviewer
SOC Analyst at Tata Consultancy Services, Ltd
Aug 10, 2021
 

Featured Reviews

HarshBhardiya - PeerSpot reviewer
SOC Engineer at a outsourcing company with 10,001+ employees
Have managed daily asset and alert monitoring effectively but have encountered limitations with manual processes and interface usability
It's still very manual and doesn't work on its own. It's still in an early stage and not on par where we can consider it a really successful detection system. The accuracy is not there. The UI could be better when compared to Sentinels where we can use flags and tagging. It could be much more user-friendly. IBM Security QRadar has all features and is fully competitive with other SIEM tools, but when it comes to user-friendliness, a new user takes time to get used to it. More intuitive, user-friendly interfaces and more helpful documentation would be beneficial. The query searching and data fetching could be faster. In large to very large organizations with around 5,000 or 6,000 assets or beyond, even with proper configurations and RAM and hardware backing up, the query is fairly slow.
reviewer1469784 - PeerSpot reviewer
Senior Manager at a financial services firm with 10,001+ employees
Helps us detect cyber threats quickly and integrate multiple feeds effectively
Overall, the product is good, but when it comes to some infrastructure issues, we have to dig into more logs. There is no straightforward indication of an issue. Health check kind of dashboards are not available. More AI would help us, and more optimization, since security products run more queries. The AI module could suggest solutions, optimizing queries or workload balancing. If the product itself advises on running queries during peak times, it would be similar to what ChatGPT currently offers. We see quite a few issues on stability. Even last week, we faced something, and identifying bottlenecks is not easy. We need more SMEs, and there is no mechanism to tell us about indexer or search head issues. Self-monitoring dashboards could be beneficial. The technical support still requires more improvement. Often, primary support takes a lot of time and forwards most solutions to the engineering side. The primary support team has very limited knowledge to provide.
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Use our free recommendation engine to learn which Security Information and Event Management (SIEM) solutions are best for your needs.
879,768 professionals have used our research since 2012.
 

Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
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…
 

Answers from the Community

Navin Rehnius - PeerSpot reviewer
SOC Analyst at Tata Consultancy Services, Ltd
Aug 10, 2021
Aug 10, 2021
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, remember that any EDR/XDR should integrate to the SIEM/SOAR and a strong threat intel source. If you consider SOC outsourcing take your time and find one you can integrate like a virtual team member. They a...
2 out of 12 answers
KM
IT Infrastructure Analyst at AG Group
Jul 26, 2021
I haven't used these big-name ones like Splunk etc. but I feel they're overpriced. I think they charge an arm and a leg for each module. The ROI justification is not there. Why not try a cheaper and robust alternative like Elasticsearch?
KA
Unit Head Titanium (Security Solution) at RapidCompute
Jul 26, 2021
We are using LogRthythm SIEM complete case management and offer SIEM/SOC as service.
 

Top Industries

By visitors reading reviews
Computer Software Company
13%
Financial Services Firm
11%
Manufacturing Company
7%
Government
6%
Financial Services Firm
13%
Computer Software Company
12%
Manufacturing Company
9%
Government
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business90
Midsize Enterprise38
Large Enterprise105
By reviewers
Company SizeCount
Small Business109
Midsize Enterprise50
Large Enterprise264
 

Questions from the Community

What are the biggest differences between Securonix UEBA, Exabeam, and IBM QRadar?
It mostly depends on your use-cases and environment. Exabeam and Securonix have a stronger UEBA feature set, friendlier GUI and are not licensed based on capacity (amount of logs and information in...
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 your experience regarding pricing and costs for IBM Security QRadar?
My experience with pricing, setup cost, and licensing is great compared to the other vendor.
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 Splunk?
There are a lot of third-party applications that can be installed.
 

Also Known As

IBM QRadar, QRadar SIEM, QRadar UBA, QRadar on Cloud, IBM QRadar Advisor with Watson
No data available
 

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Find out what your peers are saying about IBM Security QRadar vs. Splunk Enterprise Security and other solutions. Updated: December 2025.
879,768 professionals have used our research since 2012.