Company lists · Data refreshed September 2026
Top 25 Cybersecurity incident response firms based in the United States
RevenueBase identified 3,028 company matches for cybersecurity incident response firms associated with the United States as of September 2026 and tracks 56,170 professional contacts across them, including 24,356 with verified work emails and 19,070 with mobile numbers. New York is the largest hub.
This list covers company matches for cybersecurity incident response firms associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 1, 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 cybersecurity incident response firms based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 4,050 contacts → | ||||
Exact match “Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 2 | 3,490 contacts → | ||||
Exact match “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 3 | 2,206 contacts → | ||||
Exact match “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 4 | 2,141 contacts → | ||||
Exact match “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 5 | 1,252 contacts → | ||||
Exact match “ReliaQuest exists to Make Security Possible.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 6 | 1,234 contacts → | ||||
Exact match “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 7 | 1,047 contacts → | ||||
Exact match “Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 8 | 753 contacts → | ||||
Exact match “Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 9 | 719 contacts → | ||||
Exact match “Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 10 | 636 contacts → | ||||
Exact match “Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 11 | 618 contacts → | ||||
Exact match “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 12 | 582 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 13 | 517 contacts → | ||||
Exact match “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 14 | 492 contacts → | ||||
Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 15 | 489 contacts → | ||||
Exact match “AlertMedia is the leading Risk Intelligence and Response platform, helping organizations anticipate, assess, and respond to threats that impact their people, operations, and…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 16 | 462 contacts → | ||||
Exact match “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 17 | 438 contacts → | ||||
Exact match “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…” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 18 | 404 contacts → | ||||
Exact match “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 19 | 402 contacts → | ||||
Exact match “Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 20 | 345 contacts → | ||||
Exact match “With offices in Oslo, Stavanger, Trondheim, Stockholm, Copenhagen, Utrecht and London, we deliver cybersecurity services across Europe.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 21 | 311 contacts → | ||||
Exact match “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 22 | 294 contacts → | ||||
Exact match “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 23 | 292 contacts → | ||||
Exact match “Most MDR providers send alerts and call it coverage, but security teams don't need more notifications.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 24 | 291 contacts → | ||||
Exact match “Today’s organizations are playing catch-up, chasing alerts with a scarcity of experienced people, time and budget.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
| 25 | 279 contacts → | ||||
Exact match “Deepwatch® is the leader in Precision MDR powered by AI and humans.” Recorded in the RevenueBase company graph · Sep 1, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “cybersecurity incident response firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 3,028 cybersecurity incident response firms based in the United States
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Cybersecurity incident response firms based in the United States at a glance
As of Sep 1, 2026Companies by employee count
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with the United States whose business descriptions match “cybersecurity incident response firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 24,356 professional contacts with verified work emails across the full matched dataset. 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 1, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Cybersecurity incident response firms by metro
- Cybersecurity incident response firms in New York96
- Cybersecurity incident response firms in Washington68
- Cybersecurity incident response firms in Atlanta59
- Cybersecurity incident response firms in Austin58
- Cybersecurity incident response firms in Dallas53
- Cybersecurity incident response firms in Chicago52
- Cybersecurity incident response firms in Miami52
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “cybersecurity incident response firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cybersecurity incident response firms are there based in the United States?
RevenueBase identified 3,028 company matches for cybersecurity incident response firms associated with the United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Commvault tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most cybersecurity incident response firms?
New York leads with 96 company records, followed by Washington (68) and Atlanta (59).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 24,356 professional contacts with verified work emails tracked across these 3,028 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,028 cybersecurity incident response firms based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Cybersecurity incident response firms by geography
- Cybersecurity incident response firms based in the United Kingdom
- Cybersecurity incident response firms based in France
- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
- Cybersecurity incident response firms based in Brazil
- Cybersecurity incident response firms based in Germany
- Cybersecurity incident response firms based in the Netherlands
- Cybersecurity incident response firms based in Spain
- Cybersecurity incident response firms based in Israel
- Cybersecurity incident response firms based in Italy
- Cybersecurity incident response firms based in Mexico
- Cybersecurity incident response firms based in South Africa
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.
More company lists
- All company lists
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- Lists A-Z
- New lists
- Cybersecurity incident response firms based in the United Kingdom
- Cybersecurity incident response firms based in France
- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
- Cybersecurity incident response firms based in Brazil
- Cybersecurity incident response firms based in Germany
Company intelligence · public preview
Top 25 cybersecurity incident response firms based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,028 matching company records for cybersecurity incident response firms based in the United States, with 56,170 tracked contacts and 24,356 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cybersecurity incident response firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Commvaultcommvault.comHQ: HQ not recorded; location: Tinton Falls, NJ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tinton Falls, NJ, United States | 1,001-5,000 | Exact match | 4,050 contacts → |
“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Trellixtrellix.comHQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Plano, TX, United States | 1,001-5,000 | Exact match | 3,490 contacts → |
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  OPTIVoptiv.comHQ: HQ not recorded; location: Chantilly, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,206 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Bitdefenderbitdefender.comHQ: HQ not recorded; location: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 2,141 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Reliaquestreliaquest.comHQ: HQ not recorded; location: Sandy, UT, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Sandy, UT, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“ReliaQuest exists to Make Security Possible.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Guidepoint Securityguidepointsecurity.comHQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tampa, FL, United States | 1,001-5,000 | Exact match | 1,234 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Brosnan Risk Consultantsbrosnanrisk.comHQ: HQ not recorded; location: Newhall, CA, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Newhall, CA, United States | 5,001-10,000 | Exact match | 1,047 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Bitsightbitsight.comHQ: HQ not recorded; location: Raleigh, NC, United StatesReported employees: 501-1,000 | HQ not recorded; location: Raleigh, NC, United States | 501-1,000 | Exact match | 753 contacts → |
“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Coalition, INCcoalitioninc.comHQ: HQ not recorded; location: San Francisco, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: San Francisco, CA, United States | 501-1,000 | Exact match | 719 contacts → |
“Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Telos Corporationtelos.comHQ: HQ not recorded; location: Las Vegas, NV, United StatesReported employees: 501-1,000 | HQ not recorded; location: Las Vegas, NV, United States | 501-1,000 | Exact match | 636 contacts → |
“Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Vikingcloudvikingcloud.comHQ: HQ not recorded; location: Chicago, IL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chicago, IL, United States | 1,001-5,000 | Exact match | 618 contacts → |
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Levelbluelevelblue.comHQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 582 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Ultraviolet Cyberuvcyber.comHQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Phoenix, AZ, United States | 501-1,000 | Exact match | 517 contacts → |
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Securityhqsecurityhq.comHQ: HQ not recorded; location: New York, NY, United StatesReported employees: 501-1,000 | HQ not recorded; location: New York, NY, United States | 501-1,000 | Exact match | 492 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Alertmediaalertmedia.comHQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Austin, TX, United States | 201-500 | Exact match | 489 contacts → |
“AlertMedia is the leading Risk Intelligence and Response platform, helping organizations anticipate, assess, and respond to threats that impact their people, operations, and…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  ARETEareteir.comHQ: HQ not recorded; location: New York, NY, United StatesReported employees: 201-500 | HQ not recorded; location: New York, NY, United States | 201-500 | Exact match | 462 contacts → |
“Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Palo Alto Networks Unit 42paloaltonetworks.comHQ: HQ not recorded; location: Santa Clara, CA, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Santa Clara, CA, United States | 5,001-10,000 | Exact match | 438 contacts → |
“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…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Kudelski Securitykudelskisecurity.comHQ: HQ not recorded; location: Irving, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Irving, TX, United States | 201-500 | Exact match | 404 contacts → |
“Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  RED Canary, A Zscaler Companyredcanary.comHQ: HQ not recorded; location: Denver, CO, United StatesReported employees: 201-500 | HQ not recorded; location: Denver, CO, United States | 201-500 | Exact match | 402 contacts → |
“Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Mnemonicmnemonic.ioHQ: HQ not recorded; location: Redwood City, CA, United StatesReported employees: 201-500 | HQ not recorded; location: Redwood City, CA, United States | 201-500 | Exact match | 345 contacts → |
“With offices in Oslo, Stavanger, Trondheim, Stockholm, Copenhagen, Utrecht and London, we deliver cybersecurity services across Europe.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Security Risk Advisorssra.ioHQ: HQ not recorded; location: Philadelphia, PA, United StatesReported employees: 201-500 | HQ not recorded; location: Philadelphia, PA, United States | 201-500 | Exact match | 311 contacts → |
“We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Cipher A Prosegur Companycipher.comHQ: HQ not recorded; location: Miami, FL, United StatesReported employees: 201-500 | HQ not recorded; location: Miami, FL, United States | 201-500 | Exact match | 294 contacts → |
“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Critical Startcriticalstart.comHQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Plano, TX, United States | 201-500 | Exact match | 292 contacts → |
“Most MDR providers send alerts and call it coverage, but security teams don't need more notifications.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Silverskysilversky.comHQ: HQ not recorded; location: Mount Laurel, NJ, United StatesReported employees: 201-500 | HQ not recorded; location: Mount Laurel, NJ, United States | 201-500 | Exact match | 291 contacts → |
“Today’s organizations are playing catch-up, chasing alerts with a scarcity of experienced people, time and budget.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Deepwatchdeepwatch.comHQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 201-500 | HQ not recorded; location: Tampa, FL, United States | 201-500 | Exact match | 279 contacts → |
“Deepwatch® is the leader in Precision MDR powered by AI and humans.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,028 company matches
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Cybersecurity incident response firms: dataset insights
September 1, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
3,016 records in the displayed employee bands.
12 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cybersecurity incident response firms by metro
- Cybersecurity incident response firms in New York96
- Cybersecurity incident response firms in Washington68
- Cybersecurity incident response firms in Atlanta59
- Cybersecurity incident response firms in Austin58
- Cybersecurity incident response firms in Dallas53
- Cybersecurity incident response firms in Chicago52
- Cybersecurity incident response firms in Miami52
Questions about this company list
What does Exact match mean for cybersecurity incident response firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cybersecurity incident response firms did RevenueBase find based in the United States?
The saved snapshot records 3,028 matching company records, 56,170 tracked contacts and 24,356 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cybersecurity incident response firms by geography
- Cybersecurity incident response firms based in the United Kingdom
- Cybersecurity incident response firms based in France
- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
- Cybersecurity incident response firms based in Brazil
- Cybersecurity incident response firms based in Germany
- Cybersecurity incident response firms based in the Netherlands
- Cybersecurity incident response firms based in Spain
- Cybersecurity incident response firms based in Israel
- Cybersecurity incident response firms based in Italy
- Cybersecurity incident response firms based in Mexico
- Cybersecurity incident response firms based in South Africa
Cite this list
RevenueBase Data Team. Top 25 cybersecurity incident response firms based in the United States. Snapshot: September 1, 2026. https://revenuebase.ai/companies/cybersecurity-incident-response-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cybersecurity incident response firms based in the United Kingdom
- Cybersecurity incident response firms based in France
- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
- Cybersecurity incident response firms based in Brazil
- Cybersecurity incident response firms based in Germany
Company intelligence · public preview
Top 25 cybersecurity incident response firms based in the United States
RevenueBase records 3,028 matching company records for cybersecurity incident response firms based in the United States, with 56,170 tracked contacts and 24,356 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 1, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 cybersecurity incident response firms based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Commvaultcommvault.com HQ: HQ not recorded; location: Tinton Falls, NJ, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tinton Falls, NJ, United States | 1,001-5,000 | Exact match | 4,050 contacts → |
“Commvault (NASDAQ: CVLT) is a leader in unified resilience at enterprise scale.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Trellixtrellix.com HQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Plano, TX, United States | 1,001-5,000 | Exact match | 3,490 contacts → |
“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | OPTIVoptiv.com HQ: HQ not recorded; location: Chantilly, VA, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chantilly, VA, United States | 1,001-5,000 | Exact match | 2,206 contacts → |
“Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bitdefenderbitdefender.com HQ: HQ not recorded; location: Fort Lauderdale, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Fort Lauderdale, FL, United States | 1,001-5,000 | Exact match | 2,141 contacts → |
“Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Reliaquestreliaquest.com HQ: HQ not recorded; location: Sandy, UT, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Sandy, UT, United States | 1,001-5,000 | Exact match | 1,252 contacts → |
“ReliaQuest exists to Make Security Possible.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Guidepoint Securityguidepointsecurity.com HQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Tampa, FL, United States | 1,001-5,000 | Exact match | 1,234 contacts → |
“GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Brosnan Risk Consultantsbrosnanrisk.com HQ: HQ not recorded; location: Newhall, CA, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Newhall, CA, United States | 5,001-10,000 | Exact match | 1,047 contacts → |
“Brosnan Risk Consultants, Ltd.(BRC) is a security risk management firm focusing on physical security, emergency security, disaster preparedness and recovery and management…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Bitsightbitsight.com HQ: HQ not recorded; location: Raleigh, NC, United StatesReported employees: 501-1,000 | HQ not recorded; location: Raleigh, NC, United States | 501-1,000 | Exact match | 753 contacts → |
“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Coalition, INCcoalitioninc.com HQ: HQ not recorded; location: San Francisco, CA, United StatesReported employees: 501-1,000 | HQ not recorded; location: San Francisco, CA, United States | 501-1,000 | Exact match | 719 contacts → |
“Coalition is the world's first Active Insurance provider designed to help prevent digital risk before it strikes.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Telos Corporationtelos.com HQ: HQ not recorded; location: Las Vegas, NV, United StatesReported employees: 501-1,000 | HQ not recorded; location: Las Vegas, NV, United States | 501-1,000 | Exact match | 636 contacts → |
“Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Vikingcloudvikingcloud.com HQ: HQ not recorded; location: Chicago, IL, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Chicago, IL, United States | 1,001-5,000 | Exact match | 618 contacts → |
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Levelbluelevelblue.com HQ: HQ not recorded; location: Dallas, TX, United StatesReported employees: 1,001-5,000 | HQ not recorded; location: Dallas, TX, United States | 1,001-5,000 | Exact match | 582 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Ultraviolet Cyberuvcyber.com HQ: HQ not recorded; location: Phoenix, AZ, United StatesReported employees: 501-1,000 | HQ not recorded; location: Phoenix, AZ, United States | 501-1,000 | Exact match | 517 contacts → |
“UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Securityhqsecurityhq.com HQ: HQ not recorded; location: New York, NY, United StatesReported employees: 501-1,000 | HQ not recorded; location: New York, NY, United States | 501-1,000 | Exact match | 492 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Alertmediaalertmedia.com HQ: HQ not recorded; location: Austin, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Austin, TX, United States | 201-500 | Exact match | 489 contacts → |
“AlertMedia is the leading Risk Intelligence and Response platform, helping organizations anticipate, assess, and respond to threats that impact their people, operations, and…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | ARETEareteir.com HQ: HQ not recorded; location: New York, NY, United StatesReported employees: 201-500 | HQ not recorded; location: New York, NY, United States | 201-500 | Exact match | 462 contacts → |
“Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Palo Alto Networks Unit 42paloaltonetworks.com HQ: HQ not recorded; location: Santa Clara, CA, United StatesReported employees: 5,001-10,000 | HQ not recorded; location: Santa Clara, CA, United States | 5,001-10,000 | Exact match | 438 contacts → |
“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…” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Kudelski Securitykudelskisecurity.com HQ: HQ not recorded; location: Irving, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Irving, TX, United States | 201-500 | Exact match | 404 contacts → |
“Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | RED Canary, A Zscaler Companyredcanary.com HQ: HQ not recorded; location: Denver, CO, United StatesReported employees: 201-500 | HQ not recorded; location: Denver, CO, United States | 201-500 | Exact match | 402 contacts → |
“Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Mnemonicmnemonic.io HQ: HQ not recorded; location: Redwood City, CA, United StatesReported employees: 201-500 | HQ not recorded; location: Redwood City, CA, United States | 201-500 | Exact match | 345 contacts → |
“With offices in Oslo, Stavanger, Trondheim, Stockholm, Copenhagen, Utrecht and London, we deliver cybersecurity services across Europe.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Security Risk Advisorssra.io HQ: HQ not recorded; location: Philadelphia, PA, United StatesReported employees: 201-500 | HQ not recorded; location: Philadelphia, PA, United States | 201-500 | Exact match | 311 contacts → |
“We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Cipher A Prosegur Companycipher.com HQ: HQ not recorded; location: Miami, FL, United StatesReported employees: 201-500 | HQ not recorded; location: Miami, FL, United States | 201-500 | Exact match | 294 contacts → |
“We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Critical Startcriticalstart.com HQ: HQ not recorded; location: Plano, TX, United StatesReported employees: 201-500 | HQ not recorded; location: Plano, TX, United States | 201-500 | Exact match | 292 contacts → |
“Most MDR providers send alerts and call it coverage, but security teams don't need more notifications.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Silverskysilversky.com HQ: HQ not recorded; location: Mount Laurel, NJ, United StatesReported employees: 201-500 | HQ not recorded; location: Mount Laurel, NJ, United States | 201-500 | Exact match | 291 contacts → |
“Today’s organizations are playing catch-up, chasing alerts with a scarcity of experienced people, time and budget.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Deepwatchdeepwatch.com HQ: HQ not recorded; location: Tampa, FL, United StatesReported employees: 201-500 | HQ not recorded; location: Tampa, FL, United States | 201-500 | Exact match | 279 contacts → |
“Deepwatch® is the leader in Precision MDR powered by AI and humans.” Recorded description excerpt · September 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,028 company matches
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Cybersecurity incident response firms: dataset insights
September 1, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
3,016 records in the displayed employee bands.
12 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 1, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Cybersecurity incident response firms by metro
- Cybersecurity incident response firms in New York96
- Cybersecurity incident response firms in Washington68
- Cybersecurity incident response firms in Atlanta59
- Cybersecurity incident response firms in Austin58
- Cybersecurity incident response firms in Dallas53
- Cybersecurity incident response firms in Chicago52
- Cybersecurity incident response firms in Miami52
Questions about this company list
What does Exact match mean for cybersecurity incident response firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many cybersecurity incident response firms did RevenueBase find based in the United States?
The saved snapshot records 3,028 matching company records, 56,170 tracked contacts and 24,356 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 1, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cybersecurity incident response firms by geography
- Cybersecurity incident response firms based in the United Kingdom
- Cybersecurity incident response firms based in France
- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
- Cybersecurity incident response firms based in Brazil
- Cybersecurity incident response firms based in Germany
- Cybersecurity incident response firms based in the Netherlands
- Cybersecurity incident response firms based in Spain
- Cybersecurity incident response firms based in Israel
- Cybersecurity incident response firms based in Italy
- Cybersecurity incident response firms based in Mexico
- Cybersecurity incident response firms based in South Africa
Cite this list
RevenueBase Data Team. Top 25 cybersecurity incident response firms based in the United States. Snapshot: September 1, 2026. https://revenuebase.ai/companies/cybersecurity-incident-response-firms/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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- Cybersecurity incident response firms based in the United Kingdom
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- Cybersecurity incident response firms based in Canada
- Cybersecurity incident response firms based in Australia
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- Cybersecurity incident response firms based in Germany