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IBM Security QRadar vs Sentinel vs Splunk Enterprise Security comparison

 

Comparison Buyer's Guide

Executive Summary

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
6.4
IBM Security QRadar offers efficient data management, cost savings, competitive pricing, and long-term protection akin to security insurance.
Sentiment score
5.5
Sentinel boosts ROI by tracking user behavior and reducing security costs, with returns often seen within three years.
Sentiment score
6.1
Splunk Enterprise Security enhances ROI with automation and flexibility, benefiting incident response and early threat detection despite high costs.
With SOAR, the workflow takes one minute or less to complete the analysis.
Cyber Security 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
Investing this amount was very much worth it for my organization.
Information Security Analyst at Banglalink
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 mixed, with varying response times and expertise, but users find online resources helpful.
Sentiment score
5.8
Sentinel's customer service is highly rated for quick, effective support, though low-priority and backend support may vary.
Sentiment score
6.2
Splunk Enterprise Security support is mixed; users prefer faster resolutions and direct access to advanced support without delays.
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.
Cyber Security 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
The customer support for Sentinel is very good; any tickets logged will be answered immediately within the given timeframe.
Senior Specialist at a tech vendor with 10,001+ 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
7.2
IBM Security QRadar is praised for scalability, though challenges in larger setups and specific hardware requirements are noted.
Sentiment score
7.8
Sentinel is highly scalable, integrating with devices and servers easily, though setup challenges exist due to skill gaps.
Sentiment score
7.3
Splunk Enterprise Security is praised for scalability across environments, efficiently handling data growth, despite initial setup complexity.
For EPS license, if you increase or exceed the EPS license, you cannot receive events.
Cyber Security Architects at VaporVM
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
7.5
IBM Security QRadar offers robust stability and reliability, though some users report issues with patches and high-demand scenarios.
Sentiment score
8.2
Sentinel is rated highly for stability, though Java RAM issues and network sensitivity sometimes affect its seamless 5,000 events/second performance.
Sentiment score
7.6
Splunk Enterprise Security is reliable and stable, with minor glitches and excellent support, ideal for high-volume environments.
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 Bank of America
 

Room For Improvement

IBM Security QRadar users seek improved upgrades, integrations, user interface, cost efficiency, AI features, and better threat detection.
Sentinel's unclear security, complex interfaces, and integration issues hinder user experience and compliance, demanding improved customization and dashboards.
Splunk Enterprise Security's interface and pricing require improvements, with a focus on user-friendliness, support, and AI integration.
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.
Cyber Security Architects at VaporVM
Price is always a consideration, so the price would be nice if it were lower.
Manager, Customer Success at Coltek Business Soltuions
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 valuable, priced per EPS/FPS, and cheaper than Splunk yet pricier than other SIEMs.
Sentinel offers flexible subscription pricing with discounts, yet costs align with competitors, suitable for enterprises but pricey for small businesses.
Splunk Enterprise Security is costly but valued for its advanced features, best for large enterprises with high data needs.
Splunk is more expensive than IBM Security QRadar.
Cyber Security 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
They nearly always bill it in dollars, so if it can be billed in our currency, that would be helpful and fixed in our currency.
Manager, Customer Success at Coltek Business Soltuions
My experience with pricing, setup cost, and licensing shows that while it is a little on the higher side, since it is part of a package for all Microsoft products, I feel it is a better choice comparatively than other SIEMs in the market.
Senior Specialist at a tech vendor with 10,001+ 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 is valued for real-time alerts, scalability, integration, AI features, user-friendly interface, and threat detection.
Sentinel provides comprehensive threat detection and analysis with seamless Microsoft integration, offering real-time insights and scalable security solutions.
Splunk Enterprise Security excels in threat detection, integration, and scalability with advanced AI, real-time monitoring, and intuitive interface.
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
Sentinel's best features include that it's a very easy product to use.
Manager, Customer Success at Coltek Business Soltuions
In terms of metrics showing how Sentinel has helped, as part of log filtering, we have reduced around thirty to thirty-five percent of false-positive incident creation.
Senior Specialist at a tech vendor 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
 

Mindshare comparison

As of June 2026, in the Security Information and Event Management (SIEM) category, the mindshare of IBM Security QRadar is 5.3%, down from 8.2% compared to the previous year. The mindshare of Sentinel is 2.7%, down from 3.5% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.3%, down from 9.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Security Information and Event Management (SIEM) Mindshare Distribution
ProductMindshare (%)
Splunk Enterprise Security7.3%
IBM Security QRadar5.3%
Sentinel2.7%
Other84.7%
Security Information and Event Management (SIEM)
 

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.
Simon Johnston - PeerSpot reviewer
Manager, Customer Success at Coltek Business Soltuions
Simple antivirus solution integrates well but could improve pricing and currency options
I don't really have experience working with these solutions. I promote them for our clients, but I don't work with them. I can't share my experience with these tools as I make assumptions about that. For both Adlumin and CrowdStrike, both confirm that they're scalable and enterprise-ready and all those kinds of things. We haven't had any specific problem with either of those. We just have a preference for which one we would prefer. If somebody says they want to use a different one from the one that we prefer, then we have to find reasons why they aren't. But scalability is not one of the reasons that one is better over the other. I don't really have advice for people that are looking into using Sentinel; just do your research across what is available. On a scale of one to ten, I rate Sentinel a seven.
Sathis-Kumar - PeerSpot reviewer
Senior Manager at Bank of America
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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Comparison Review

VS
Manager, Enterprise Risk Consulting at a tech company with 1,001-5,000 employees
Jun 28, 2015
Qradar vs. ArcSight
Continuing with the SIEM posts we have done at Infosecnirvana, this post is a Head to head comparison of the two Industry leading SIEM products in the market – HP ArcSight and IBM QRadar Both the products have consistently been in the Gartner Leaders Quadrant. Both HP and IBM took over niche SIEM…
 

Top Industries

By visitors reading reviews
Financial Services Firm
11%
Computer Software Company
10%
Construction Company
8%
Manufacturing Company
8%
Financial Services Firm
10%
Manufacturing Company
8%
Computer Software Company
8%
Comms Service Provider
7%
Financial Services Firm
14%
Manufacturing Company
9%
Computer Software Company
8%
Construction Company
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business92
Midsize Enterprise39
Large Enterprise107
By reviewers
Company SizeCount
Small Business9
Midsize Enterprise3
Large Enterprise8
By reviewers
Company SizeCount
Small Business125
Midsize Enterprise59
Large Enterprise277
 

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, friendli...
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 a...
What is your experience regarding pricing and costs for IBM Security QRadar?
Pricing and the license of EPS were managed by the governance team. I was not responsible for managing those. I was s...
What is your experience regarding pricing and costs for NetIQ Sentinel?
I don't have too many comments overall about pricing as we're in South Africa, so it makes more sense if it's billed ...
What needs improvement with NetIQ Sentinel?
I'm not sure what the room for improvement is for Sentinel. It needs to stay current, and it does, so I suppose that'...
What is your primary use case for NetIQ Sentinel?
It's our go-to choice for antivirus. I use Sentinel a lot.
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 ingest...
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 monitor...
What needs improvement with Splunk?
Complex Setup and Configuration ------------------------------- In my personal opinion, the initial setup and configu...
 

Also Known As

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

Overview

 

Sample Customers

Clients across multiple industries, such as energy, financial, retail, healthcare, government, communications, and education use QRadar.
Faysal Bank, GaVI, Handelsbanken, ISC Mªnster, Lambeth Council, Swisscard, The Municipality of Siena, Tukes, University of Dayton, University of the Sunshine Coast
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 Splunk, IBM, Wazuh and others in Security Information and Event Management (SIEM). Updated: May 2026.
900,277 professionals have used our research since 2012.