Company lists · Data refreshed November 2026

Top 25 Incident response firms worldwide

RevenueBase identified 3,603 company matches for incident response firms worldwide as of November 2026 and tracks 70,971 professional contacts across them, including 16,177 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for incident response firms worldwide, 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 November 6, 2026. Country and city lists for incident response firms follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
3,603Companies
70,971Contacts tracked
16,177Verified emails
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The 25 largest incident response firms worldwide

Ranked by team size
Top 25 of 3,603 company matches for incident response firms worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchUnited StatesHQ recorded Nov 6, 2026n/a13,149 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchBirmingham, MI, United StatesHQ recorded Nov 6, 202610001+3,128 contacts →

Exact match

“BELFOR is the worldwide leader in restoring properties damaged by fire, wind, water, and natural disaster.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchSao Paulo, BrazilHQ recorded Nov 6, 20261,001-5,0001,301 contacts →

Exact match

“Somos a maior empresa de Emergency Response em infraestruturas críticas do Brasil.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchMorrisville, NC, United StatesHQ recorded Nov 6, 2026501-1,0001,244 contacts →

Exact match

“IEM is a professional services firm dedicated to building a safe, secure, and resilient world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchPearl River, CA, United StatesHQ recorded Nov 6, 20265,001-10,0001,080 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 · Nov 6, 2026 · View company records in RevenueBase
6Exact matchBangalore, IndiaHQ recorded Nov 6, 20261,001-5,000755 contacts →

Exact match

“SISA is a global forensics-driven cybersecurity solutions company, trusted by leading organizations for securing their businesses with robust preventive, detective, and corrective…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchSingaporeHQ recorded Nov 6, 2026501-1,000624 contacts →

Exact match

“Founded in 2003 and headquartered in Singapore, Group-IB is a leading creator of cybersecurity technologies to investigate, prevent, and fight digital crime.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLongmont, CO, United StatesHQ recorded Nov 6, 20261,001-5,000568 contacts →

Exact match

“Intrado is dedicated to saving lives and protecting communities, with a mission to provide comprehensive support in preparing for, responding to, and recovering from critical…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchParis, FranceHQ recorded Nov 6, 202651-200558 contacts →

Exact match

“Founded in 2008, OWN is a Pure Player in cybersecurity, with offices in Paris, Rennes and Toulouse, but with a presence throughout France with its fully remote employees.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchSanta Clara, CA, United StatesHQ recorded Nov 6, 20265,001-10,000510 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 · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBoca Raton, United StatesHQ recorded Nov 6, 2026201-500496 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 · Nov 6, 2026 · View company records in RevenueBase
12Exact matchStrongsville, ON, United StatesHQ recorded Nov 6, 202651-200481 contacts →

Exact match

“AFIMAC Global: Trusted Crisis Management & Business Continuity Partner.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchEvanston, United StatesHQ recorded Nov 6, 2026201-500461 contacts →

Exact match

“For over twenty years, Hagerty Consulting has supported clients in preparing for, responding to, and recovering from some of the nation’s largest and most complex disasters.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSpring, TX, United StatesHQ recorded Nov 6, 2026n/a422 contacts →

Exact match

“Kenyon International Emergency Services (Kenyon), a TrustFlight company, is the world’s leading full-service disaster management company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact match경기도, South KoreaHQ recorded Nov 6, 20265,001-10,000411 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchSwedenHQ recorded Nov 6, 2026201-500360 contacts →

Exact match

“Prevent Breach & Minimize Impact”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchBrussels, BelgiumHQ recorded Nov 6, 2026201-500341 contacts →

Exact match

“NVISO is a cyber security services firm composed of outstanding security professionals - each has a specific field of expertise, ranging from security research and risk management…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchDunwoody, GA, United StatesHQ recorded Nov 6, 2026201-500339 contacts →

Exact match

“Juvare provides Enterprise Resilience Solutions for organizations to connect to the critical resources, data and mutual assistance they need to bounce forward stronger following…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchStovner, NorwayHQ recorded Nov 6, 20261,001-5,000329 contacts →

Exact match

“Recover er spesialister på opprydding og gjenoppbygging etter brann, vann- og miljøskader.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchBromma, SwedenHQ recorded Nov 6, 20261,001-5,000328 contacts →

Exact match

“Ocab är rikstäckande inom sanering och avfuktning med etablering på över 60 orter.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchAtlanta, GA, United StatesHQ recorded Nov 6, 202651-200298 contacts →

Exact match

“CENTEGIX is the leader in incident response solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAurora, IL, United StatesHQ recorded Nov 6, 2026201-500280 contacts →

Exact match

“With over 25 years of industry-leading experience, Aftermath Services® is the only trauma and hazard remediation company consistently elevating standards of care and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchSarasota, CA, United StatesHQ recorded Nov 6, 2026201-500277 contacts →

Exact match

“Founded in 1976, Ceres Environmental Services, Inc.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchLongwood, FL, United StatesHQ recorded Nov 6, 2026501-1,000272 contacts →

Exact match

“Founded in 1968, Kustom is a full-service disaster recovery and restoration contractor.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchIjsselstein, NetherlandsHQ recorded Nov 6, 2026501-1,000250 contacts →

Exact match

“Geluk herstellen, dat is wat wij doen!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 3,603 incident response firms worldwide

See the full list, filter by size, metro and specialty, and access 16,177 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Incident response firms worldwide at a glance

As of Nov 6, 2026
22.8%Verified-email coverage
19.7Average contacts per company
11-50Median size (employees)
1.5%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
1,542
11-50
1,440
51-200
435
201-500
84
501-1,000
38
1,001-5,000
30
5,001-10,000
7
10001+
14

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for incident response firms are linked below.
What qualifies
Company records worldwide whose business descriptions match “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. 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 16,177 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 November 6, 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.

Incident response firms by location

21 lists · largest first

Every Incident response firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “incident response firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many incident response firms are there worldwide?

RevenueBase identified 3,603 company matches for incident response firms worldwide as of November 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?

Private Sector tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most incident response firms?

The United States leads with 1,569 companies, followed by Canada (215) and the United Kingdom (156). Every incident response firms list by country and city is linked on this page.

Which city has the most incident response firms?

London leads with 53 company records, followed by Houston (32) and Paris (25).

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 16,177 professional contacts with verified work emails tracked across these 3,603 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 November 6, 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.