Try our new research platform with insights from 80,000+ expert users

Graylog Enterprise vs Splunk Enterprise Security vs Sumo Logic 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:
 

Mindshare comparison

As of October 2025, in the Log Management category, the mindshare of Graylog Enterprise is 6.0%, up from 6.1% compared to the previous year. The mindshare of Splunk Enterprise Security is 7.7%, down from 9.1% compared to the previous year. The mindshare of Sumo Logic Security is 0.6%, up from 0.4% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Log Management Market Share Distribution
ProductMarket Share (%)
Splunk Enterprise Security7.7%
Graylog Enterprise6.0%
Sumo Logic Security0.6%
Other85.7%
Log Management
 

Featured Reviews

Ivan Kokalovic - PeerSpot reviewer
Facilitates backend service monitoring with efficient log retrieval and API flexibility
Graylog is valuable because it bridges technical knowledge to non-technical teams, presenting complex backend processes in a simple timeline. It boosts the knowledge of sales and customer support teams by allowing them to see the backend operations without needing to read the code. Its API is flexible for visualization, and its powerful search engine efficiently handles large volumes of log data. Moreover, its stability, fast search capabilities, and compatibility with languages like ANSI SQL enhance its utility in IT infrastructure.
Kyle Vernham - PeerSpot reviewer
Built-in searches and unified data access streamline alert investigation and boosts analyst efficiency
The two features I appreciate the most in Splunk Enterprise Security are the built-in searches, which have been very easy for us to get started with right out of the box, and the fact that it accesses all of our other systems. You can access it as a pane of glass rather than having to search individually. We also have the option to compare our analysts from our service to service. Splunk Enterprise Security helps our SOC team prioritize and investigate high-fidelity alerts more effectively by providing a more in-depth look and the ability to access a lot more of our data. Instead of jumping from several segmented systems, it allows us to have everything brought together in one place. For example, you have to move from our purview to our build system and to Splunk Enterprise Security, and it enables us to streamline that process. The built-in features of Splunk Enterprise Security, which we recently procured, have given us a good starting point and demonstrated the value of the product, providing an easy way to sell it to our company. The ease of getting everything into our purview helps us, and it serves as a good start for the investigation part in one location rather than what we usually have, which is jumping from system to system to system. Splunk Enterprise Security plays a role in our company's strategy to combat insider threats and advanced persistent threats by currently being in its technical test phase. We are still rolling it out, and it should help us find any insider threats based on information that our policy states should not be present in our system. Splunk Enterprise Security's risk-based alerting (RBA) has impacted our alert volume and analyst productivity because we've got many different systems feeding into it. However, it has helped to make it easier for our analysts to go through a set of events rather than 100 alerts. RBA allows us to streamline the process and customize it for our analysts. When it comes to leveraging Splunk Enterprise Security's dashboards and visualizations to communicate security posture to executives, it's pretty straightforward for any type of information. The visualization is easy to understand, but I haven't had any direct conversations with our executives.
Vinay Patel D N - PeerSpot reviewer
Effective with good log analytics but needs better rule correlation
The correlation rules and log mapping are not as mature compared to other SIM tools like Splunk. Sometimes logs will not fetch, and there are issues if the log volume exceeds a threshold. Not every tool is integrated with Sumo Logic. The response time for their support could be better, and it is not very user-friendly.

Quotes from Members

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

Pros

"Allowing us to set up alerts and integrate with platforms we already use, such as Slack and OpsGenie to alert users of these errors proactively, is also a very useful feature."
"The build is stable and requires little maintenance, even compared to some extremely expensive products."
"Everything stands out as valuable, including the fact that I can quantify and qualify the logs, create pipelines and process the logs in any way I like, and create charts or data maps."
"The Graylog features that have proven to be most beneficial for our data analysis in particular are that we tend to use it as a big data store, so we have the correlation rules that, if something matches under certain conditions, it raises an alarm."
"I like the correlation and the alerting."
"The solution's most valuable feature is its new interface."
"Message forwarding through the in-built module."
"Graylog is very handy."
"The most valuable aspect of the solution is the dashboard. It's very intuitive."
"The benefits my company has seen from the use of Splunk Enterprise Security revolve around the speed of detection it offers."
"The feature I appreciate the most about Splunk Enterprise Security is Search Processing Language, which has benefited my organization by making searching data a lot easier than other tools I've used."
"Correlating data across different systems via one interface will allow you to know your environment or identify incident data in ways you never imagined."
"I like the ease with which dashboards can be created."
"The most valuable feature of Splunk Enterprise Security is website activity monitoring."
"It has a rapid response search environment in the event of an incident."
"The UI of Splunk makes it easier for our analysts to move around and see what they need to see."
"It helps a lot because we can troubleshoot issues pretty easily."
"Sumo Logic Security is a good solution for searching the logs and identifying the issues."
"Support has been excellent. Sumo Logic's support staff is really good, both their account management staff and direct support."
"The most valuable features of Sumo Logic Security are the rules, use cases, and ease of use. Additionally, the integration is straightforward and good GUI."
"Sumo Logic is an easy solution to use. You can set it up very quickly, and it includes a lot of training videos."
"For many of our services, we use Sumo Logic to track errors and send notifications to our Slack channel, if there are issues. Then, we have our support people monitoring this, and they can react quickly."
"I have no concerns about the stability of the product. I feel it handles the stress we put on it very well."
"Technical support is always great."
 

Cons

"Elasticsearch recommendations for tuning could be better. Graylog doesn't have direct support for running the system inside of Kubernetes, so it can be challenging to fill in the gaps and set up containers in a way that is both performant and stable."
"The infrastructure cost is the main issue. I like the rest. If the infrastructure costs could be lower, it would be fantastic."
"The biggest problem is the collector application, as we wanted to avoid using Graylog Collector Sidecar due to its architecture."
"It would be great if Graylog could provide a better Python package in order to make it easier to use for the Python community."
"Dashboards, stream alerts and parsing could be improved."
"We ran into problems with Elasticsearch throwing a circuit-breaking exception due to field data size being too large. It turned out that the heap size directly impacted this size in a high-throughput environment, causing unexplained instability in Graylog. We were able to troubleshoot on the Elasticsearch size, but we should have been able to reference some minimum requirements for Graylog to know that our settings weren't sufficient."
"I would like to see a default dashboard widget that shows the topology of the clusters defined for the graylog install."
"The area in Graylog that needs to be improved or enhanced would be the integrations."
". Having a trial version or more training on Splunk would be helpful."
"Splunk Enterprise Security can be improved by including backup network detection and response and safe management to the paid platform."
"I didn't face any major issues with Splunk Enterprise Security. There were only one or two issues related to the user account, but nothing major."
"Splunk Enterprise Security should provide a better and richer integration."
"One issue is that we are getting a lot of false positives. We are trying to reduce them by customizing the default rules, changing thresholds, and using white-listing and black-listing. It's getting better and better as a result. But they need to build components that would reduce the false positives."
"The problem with Splunk Enterprise Security generally, from what I've seen in the last couple of years, is that it has a cultural, assumption design model around it, which means the company has to fit its internal processes in terms of how to use it."
"It could be more user friendly, in terms of the end-user experience."
"Splunk has a steeper learning curve, making it feel less user-friendly."
"We would like to have some type of predefined setup for the logs, making the setup easier by default."
"We would like the ability to drill down into a dashboard and get into deeper levels."
"It would be nice to have an improved ability to scroll through logs within a time frame. Right now, we can search for specific errors. However, if we want to look for "before and after" within a specific time frame, it's not easy using the tool. This would be an improvement."
"The correlation rules and log mapping are not as mature compared to other SIM tools like Splunk."
"If you want to up your subscription through the AWS Marketplace, it can be difficult. You can't just go back to the AWS Marketplace, and say, "I want a bigger one now." You have to contact the sales team, then they do it on the back-end. This could definitely be improved."
"If you look at some of the other offerings right now that are available in the market, they do offer APM as well as the product they're offering. I believe Sumo Logic is not there yet. So that's something which I would love to see."
"The initial setup is the most stressful, like learning how to use it."
"I would like better UI-driven functionality to create alerts and reports. Now, we have to understand the syntax, so it is a little difficult for someone to pick it up without using the manuals. If there was more of a graphical user interface, it would be beneficial."
 

Pricing and Cost Advice

"There is an open source version and an enterprise version. I wouldn't recommend the enterprise version, but as an open source solution, it is solid and works really well."
"Graylog is a free open-source solution. The free version has a capacity limitation of 2 GB daily, if you want to go above this you have to purchase a license."
"Having paid official support is wise for projects."
"If you want something that works and do not have the money for Splunk or QRadar, take Graylog.​​"
"I use the free version of Graylog."
"I am using a community edition. I have not looked at the enterprise offering from Graylog."
"It's open source and free. They have a paid version, but we never looked into that because we never needed the features of the paid version."
"Consider Enterprise support if you have atypical needs or setup requirements.​"
"Splunk can be expensive, as its licensing is based on the daily data ingestion volume."
"It can be expensive, especially the licensing costs. However, there is added value in what it can do, not just log aggregation."
"It is expensive, but it is a good tool. It is worth the cost."
"It is quite expensive."
"This product could use better pricing in general."
"My experience with the solution's setup cost, pricing, and licensing was really good."
"It is expensive. That is why many customers have moved to IBM QRadar. The price is definitely a challenge for customers."
"The price of Splunk Enterprise Security is high."
"The only limit to the scalability of the product for us is how much we are willing to pay."
"Pricing has been cheaper than some of the competing tools, like Splunk."
"The product is costly."
"The AWS Marketplace pricing is borderline. Every annual renewal, we always contemplate if we are getting what we think we could out of it or could we do it cheaper with some other product."
"Purchasing the solution through the AWS Marketplace is very easy."
"The license pricing model is based on the events that are processed through the solution."
"Purchasing Sumo Logic through the AWS Marketplace was a simple step."
"The price scaling comes in a bit expensive."
report
Use our free recommendation engine to learn which Log Management solutions are best for your needs.
869,566 professionals have used our research since 2012.
 

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
Computer Software Company
16%
Comms Service Provider
10%
University
8%
Government
8%
Computer Software Company
14%
Financial Services Firm
14%
Manufacturing Company
8%
Government
7%
Computer Software Company
13%
Manufacturing Company
11%
Financial Services Firm
7%
Educational Organization
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business8
Midsize Enterprise4
Large Enterprise7
By reviewers
Company SizeCount
Small Business110
Midsize Enterprise50
Large Enterprise257
By reviewers
Company SizeCount
Small Business6
Midsize Enterprise3
Large Enterprise12
 

Questions from the Community

What do you like most about Graylog?
The product is scalable. The solution is stable.
What is your experience regarding pricing and costs for Graylog?
I am not familiar with the pricing details of Graylog, as I was not responsible for that aspect. It was determined th...
What needs improvement with Graylog?
An improvement I would suggest is in Graylog's user interface, such as allowing for font size adjustments. A potentia...
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 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 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 ma...
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...
 

Also Known As

Graylog2
No data available
No data available
 

Overview

 

Sample Customers

Blue Cross Blue Shield, eBay, Cisco, LinkedIn, SAP, King.com, Twilio, Deutsche Presse-Agentur
Splunk has more than 7,000 customers spread across over 90 countries. These customers include Telenor, UniCredit, ideeli, McKenney's, Tesco, and SurveyMonkey.
Information Not Available
Find out what your peers are saying about Wazuh, Splunk, Grafana Labs and others in Log Management. Updated: October 2025.
869,566 professionals have used our research since 2012.