Company lists · Data refreshed September 2026
Top 25 Incident response software vendors based in the United States
RevenueBase identified 367 incident response software vendors headquartered in the United States as of September 2026 and tracks 21,354 professional contacts across them, including 10,991 with verified work emails and 6,572 with mobile numbers. New York is the largest hub.
This list covers incident response software vendors headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest incident response software vendors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,050 | ||||
“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 2 | 3,490 | ||||
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,046 | ||||
“SentinelOne is the world's leading AI-powered cybersecurity platform.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 4 | 873 | ||||
“Exabeam is the leader in Behavior Intelligence for the agentic enterprise.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 5 | 700 | ||||
“Securonix is transforming how security operations are delivered, measured, and scaled.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 6 | 489 | ||||
“AlertMedia is the leading Risk Intelligence and Response platform, helping organizations anticipate, assess, and respond to threats that impact their people, operations, and…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 7 | 462 | ||||
“Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 8 | 438 | ||||
“Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 9 | 402 | ||||
“Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 10 | 324 | ||||
“At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 11 | 319 | ||||
“Gurucul is a security analytics company founded in data science that delivers radical clarity about cyber risk.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 12 | 274 | ||||
“In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 13 | 270 | ||||
“Anomali delivers the intelligence-native Agentic SOC Platform, unifying a hyperscale security data lake, threat intelligence, and AI-driven automation to power modern security…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 14 | 257 | ||||
“CENTEGIX is the leader in incident response solutions.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 15 | 233 | ||||
“Axur is the external cybersecurity company empowering security teams to detect, inspect, and respond to threats beyond the perimeter.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 16 | 193 | ||||
“Blackpoint Cyber is a technology-driven cybersecurity company.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 17 | 192 | ||||
“NetWitness provides comprehensive and highly scalable threat detection and response capabilities for organizations around the world.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 18 | 177 | ||||
“At Index Engines, we are the experts in Cyber Resiliency, helping organizations build an infrastructure where trusted data is available and reliable.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 19 | 166 | ||||
“DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 20 | At&t CybersecurityIndirect evidence | 158 | |||
“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 21 | 147 | ||||
“Fidelis Security® is the industry innovator in proactive cyber defense, safeguarding modern IT for global enterprises with proactive XDR and CNAPP platforms.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 22 | 137 | ||||
“Solis is a leading provider of managed cyber security services and cyber incident response.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 23 | 127 | ||||
“LinkShadow is redefining cybersecurity with CyberMeshX, a unified platform that integrates Data, Identity, and Network protection.” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 24 | KasewarePartial evidence | 117 | |||
“Kaseware is transforming how organizations handle incident reporting, investigations, case management, and collaboration by delivering robust, innovative, accessible, and best in…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
| 25 | 104 | ||||
“ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…” Source: company website · checked Sep 3, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 367 incident response software vendors based in the United States
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Incident response software vendors based in the United States at a glance
As of Sep 3, 2026Companies by employee count
Verified emails by last verification
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among incident response software vendors, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “incident response software vendors”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among incident response software vendors, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 10,991 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
How many incident response software vendors are there based in the United States?
RevenueBase identified 367 incident response software vendors headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Commvault, headquartered in Tinton Falls, tops this list with the largest team on record.
Which city has the most incident response software vendors?
New York leads with 13 headquartered companies, followed by Austin (10) and San Francisco (10).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 10,991 verified decision-maker contacts tracked across these 367 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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