Company lists · Data refreshed September 2026
Top 25 Data breach notification services based in the United States
RevenueBase identified 60 company matches for data breach notification services associated with the United States as of September 2026 and tracks 739 professional contacts across them, including 369 with verified work emails. Los Angeles is the largest hub.
This list covers company matches for data breach notification services 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 19, 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 data breach notification services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 213 contacts → | ||||
Exact match “Founded by John F.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 2 | 137 contacts → | ||||
Exact match “Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 3 | 44 contacts → | ||||
Exact match “We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 4 | 18 contacts → | ||||
Exact match “PrivacyHawk is an all-in-one personal data protection service for consumers.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 5 | 17 contacts → | ||||
Exact match “NetDiligence® is a Cyber Risk Assessment and Data Breach Services company.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 6 | 13 contacts → | ||||
Exact match “NXG Strategies, LLC, founded in 2005, is a pioneer in consumer identity investigation and remediation and an innovative designer and manufacturer of needs-based, identity fraud…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 7 | 11 contacts → | ||||
Exact match “Octillo is one of the few law firms in the country focused exclusively on data security and privacy, incident response, and litigation.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 8 | 7 contacts → | ||||
Exact match “Born in the world of Incident Response, Vendetta Cyber Defense was founded with one goal in mind.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 9 | 7 contacts → | ||||
Exact match “4A Security & Compliance (4A) employs a risk management approach to information security and compliance services from security risk assessment, vulnerability assessment…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 10 | 5 contacts → | ||||
Exact match “Information Security Management, LLC (ISM, LLC) is a nationwide CyberSecurity & Privacy professional services group.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 11 | 5 contacts → | ||||
Exact match “Green Delete is a globally recognized leader in Data Privacy, management and information security.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 12 | 5 contacts → | ||||
Exact match “TeamWerks is an IT company based in the United States.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “Darkstack7 Cyber Defense is a next-generation cybersecurity consulting firm purpose-built for high-stakes situations.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 14 | 5 contacts → | ||||
Exact match “We monitor your company for data breaches in real time 300 billion+ PII records 30 billion passwords 50+ breach sources indexed daily” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “Why LibertyID?” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 16 | 4 contacts → | ||||
Exact match “We combine pre-breach due diligence with on-site security engineering and triage services to provide our clients with the expertise, tools, and workforce they need to better…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 17 | 3 contacts → | ||||
Exact match “Founded in 2004, Cyber Narus (CN) has grown from its origins as Enterprise Knowledge Partners, LLC (EKP) into a premier cyber security consulting firm with a strong national and…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “Hammer IT Consulting, an information technology (IT) consulting company that provides some very unique services designed to reduce data breaches and improve overall corporate…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 20 | 2 contacts → | ||||
Exact match “Data protection is our passion, so it doesn’t have to be yours.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match “Digital Security Consulting offers information security consulting services to help our clients avoid costly breaches of security that often result in financial losses, a loss of…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “Accord is a boutique consultancy fielding a team of highly experienced cyber security professionals focused on bringing quality infosec management and incident response solutions…” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “Don't take shortcuts when it comes to Information Security, Privacy, and Compliance.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “John Reed Stark Consulting LLC offers expertise in the fields of data breach, cybersecurity, cybercrime and incident response.” Recorded in the RevenueBase company graph · Sep 19, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “High performing, strategic-thinking legal and business professional with many years of experience in law, business ownership, management and operations in both the private and…” Recorded in the RevenueBase company graph · Sep 19, 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 “data breach notification services”. 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 60 data breach notification services based in the United States
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Data breach notification services based in the United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 60 companies.
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 “data breach notification services” 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 369 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 19, 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.
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 “data breach notification services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many data breach notification services are there based in the United States?
RevenueBase identified 60 company matches for data breach notification services 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?
Mullen Coughlin LLC tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most data breach notification services?
Los Angeles leads with 3 company records, followed by Bethesda (2) and Chicago (2).
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 369 professional contacts with verified work emails tracked across these 60 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 19, 2026.
Ready to reach these companies? Verified emails and direct dials for all 60 data breach notification services based in the United States. Start with a free account, no credit card.
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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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Company intelligence · public preview
Top 25 data breach notification services 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 60 matching company records for data breach notification services based in the United States, with 739 tracked contacts and 369 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 19, 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 data breach notification services 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 |  Mullen Coughlin LLCmullen.lawHQ: Devon, PA, United StatesReported employees: 201-500 | Devon, PA, United States | 201-500 | Exact match | 213 contacts → |
“Founded by John F.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  SOLISsolissecurity.comHQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 137 contacts → |
“Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Allendevaux & Companyallendevaux.comHQ: Dayton, OH, United StatesReported employees: 11-50 | Dayton, OH, United States | 11-50 | Exact match | 44 contacts → |
“We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Privacyhawkprivacyhawk.comHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 18 contacts → |
“PrivacyHawk is an all-in-one personal data protection service for consumers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Netdiligencenetdiligence.comHQ: Gladwyne, PA, United StatesReported employees: 1-10 | Gladwyne, PA, United States | 1-10 | Exact match | 17 contacts → |
“NetDiligence® is a Cyber Risk Assessment and Data Breach Services company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NXG Strategies, LLCnxgstrategies.com HQ: Franklin, TN, United StatesReported employees: 11-50 | Franklin, TN, United States | 11-50 | Exact match | 13 contacts → |
“NXG Strategies, LLC, founded in 2005, is a pioneer in consumer identity investigation and remediation and an innovative designer and manufacturer of needs-based, identity fraud…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Octillooctillolaw.comHQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 11 contacts → |
“Octillo is one of the few law firms in the country focused exclusively on data security and privacy, incident response, and litigation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Vendetta Cyber Defensevendettacd.io HQ: Lewisburg, PA, United StatesReported employees: 11-50 | Lewisburg, PA, United States | 11-50 | Exact match | 7 contacts → |
“Born in the world of Incident Response, Vendetta Cyber Defense was founded with one goal in mind.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  4a Security & Compliance4asecurity.comHQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 7 contacts → |
“4A Security & Compliance (4A) employs a risk management approach to information security and compliance services from security risk assessment, vulnerability assessment…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Information Security Management, LLCismllc.com HQ: Brielle, NJ, United StatesReported employees: 1-10 | Brielle, NJ, United States | 1-10 | Exact match | 5 contacts → |
“Information Security Management, LLC (ISM, LLC) is a nationwide CyberSecurity & Privacy professional services group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Green Delete INCgreendelete.com HQ: Frankfort, IL, United StatesReported employees: 11-50 | Frankfort, IL, United States | 11-50 | Exact match | 5 contacts → |
“Green Delete is a globally recognized leader in Data Privacy, management and information security.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Teamwerksteamwerks.comHQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 5 contacts → |
“TeamWerks is an IT company based in the United States.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Darkstack7 Cyber Defensedarkstack7.comHQ: Charlotte, NC, United StatesReported employees: 1-10 | Charlotte, NC, United States | 1-10 | Exact match | 5 contacts → |
“Darkstack7 Cyber Defense is a next-generation cybersecurity consulting firm purpose-built for high-stakes situations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Breachsensebreachsense.io HQ: Cleveland, OH, United StatesReported employees: 1-10 | Cleveland, OH, United States | 1-10 | Exact match | 5 contacts → |
“We monitor your company for data breaches in real time 300 billion+ PII records 30 billion passwords 50+ breach sources indexed daily” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Libertyidlibertyid.comHQ: Denver, CO, United StatesReported employees: 1-10 | Denver, CO, United States | 1-10 | Exact match | 4 contacts → |
“Why LibertyID?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Intellinetic Cyber Consultantsintelcyberx.usHQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 4 contacts → |
“We combine pre-breach due diligence with on-site security engineering and triage services to provide our clients with the expertise, tools, and workforce they need to better…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Cyber Narus LLCcybernarus.comHQ: Bloomington, MN, United StatesReported employees: 11-50 | Bloomington, MN, United States | 11-50 | Exact match | 3 contacts → |
“Founded in 2004, Cyber Narus (CN) has grown from its origins as Enterprise Knowledge Partners, LLC (EKP) into a premier cyber security consulting firm with a strong national and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Identity Fraud INCidentityfraud.com HQ: Walnut Creek, CA, United StatesReported employees: 1-10 | Walnut Creek, CA, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Hammer IT Consulting, INChammeritconsulting.com HQ: Naples, United StatesReported employees: 1-10 | Naples, United States | 1-10 | Exact match | 3 contacts → |
“Hammer IT Consulting, an information technology (IT) consulting company that provides some very unique services designed to reduce data breaches and improve overall corporate…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Azen Consultingtrustazen.comHQ: Boca Raton, FL, United StatesReported employees: 1-10 | Boca Raton, FL, United States | 1-10 | Exact match | 2 contacts → |
“Data protection is our passion, so it doesn’t have to be yours.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Digital Security Consulting, INCdsconsult.netHQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 2 contacts → |
“Digital Security Consulting offers information security consulting services to help our clients avoid costly breaches of security that often result in financial losses, a loss of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Accord Securityaccordinfosec.comHQ: Ridgewood, NJ, United StatesReported employees: 1-10 | Ridgewood, NJ, United States | 1-10 | Exact match | 2 contacts → |
“Accord is a boutique consultancy fielding a team of highly experienced cyber security professionals focused on bringing quality infosec management and incident response solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Security Brain Consultingsecuritybrainconsulting.com HQ: Milford, MA, United StatesReported employees: 1-10 | Milford, MA, United States | 1-10 | Exact match | 1 contacts → |
“Don't take shortcuts when it comes to Information Security, Privacy, and Compliance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  John Reed Stark Consulting LLCjohnreedstark.comHQ: Bethesda, MD, United StatesReported employees: 1-10 | Bethesda, MD, United States | 1-10 | Exact match | 1 contacts → |
“John Reed Stark Consulting LLC offers expertise in the fields of data breach, cybersecurity, cybercrime and incident response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Leonard Rivera LAW Pllclrlawpllc.com HQ: Westbury, NY, United StatesReported employees: 1-10 | Westbury, NY, United States | 1-10 | Exact match | 1 contacts → |
“High performing, strategic-thinking legal and business professional with many years of experience in law, business ownership, management and operations in both the private and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 60 company matches
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Data breach notification services: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
59 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 60 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 19, 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 ↗
Questions about this company list
What does Exact match mean for data breach notification services?
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 data breach notification services did RevenueBase find based in the United States?
The saved snapshot records 60 matching company records, 739 tracked contacts and 369 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 19, 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
Data breach notification services by geography
Cite this list
RevenueBase Data Team. Top 25 data breach notification services based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/data-breach-notification-services/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
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- Lists A-Z
- New lists
- Data breach notification services based in Germany
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- Oil and gas companies based in the United States
Company intelligence · public preview
Top 25 data breach notification services based in the United States
RevenueBase records 60 matching company records for data breach notification services based in the United States, with 739 tracked contacts and 369 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 19, 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 data breach notification services 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 | Mullen Coughlin LLCmullen.law HQ: Devon, PA, United StatesReported employees: 201-500 | Devon, PA, United States | 201-500 | Exact match | 213 contacts → |
“Founded by John F.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | SOLISsolissecurity.com HQ: Austin, TX, United StatesReported employees: 51-200 | Austin, TX, United States | 51-200 | Exact match | 137 contacts → |
“Solis is a leading provider of managed cyber security services and cyber incident response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Allendevaux & Companyallendevaux.com HQ: Dayton, OH, United StatesReported employees: 11-50 | Dayton, OH, United States | 11-50 | Exact match | 44 contacts → |
“We're a full-service agency that helps organizations globally with their Cybersecurity, Data Protection, and Compliance requirements.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Privacyhawkprivacyhawk.com HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 18 contacts → |
“PrivacyHawk is an all-in-one personal data protection service for consumers.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Netdiligencenetdiligence.com HQ: Gladwyne, PA, United StatesReported employees: 1-10 | Gladwyne, PA, United States | 1-10 | Exact match | 17 contacts → |
“NetDiligence® is a Cyber Risk Assessment and Data Breach Services company.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | NXG Strategies, LLCnxgstrategies.com HQ: Franklin, TN, United StatesReported employees: 11-50 | Franklin, TN, United States | 11-50 | Exact match | 13 contacts → |
“NXG Strategies, LLC, founded in 2005, is a pioneer in consumer identity investigation and remediation and an innovative designer and manufacturer of needs-based, identity fraud…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Octillooctillolaw.com HQ: New York, United StatesReported employees: 11-50 | New York, United States | 11-50 | Exact match | 11 contacts → |
“Octillo is one of the few law firms in the country focused exclusively on data security and privacy, incident response, and litigation.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Vendetta Cyber Defensevendettacd.io HQ: Lewisburg, PA, United StatesReported employees: 11-50 | Lewisburg, PA, United States | 11-50 | Exact match | 7 contacts → |
“Born in the world of Incident Response, Vendetta Cyber Defense was founded with one goal in mind.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | 4a Security & Compliance4asecurity.com HQ: Philadelphia, PA, United StatesReported employees: 11-50 | Philadelphia, PA, United States | 11-50 | Exact match | 7 contacts → |
“4A Security & Compliance (4A) employs a risk management approach to information security and compliance services from security risk assessment, vulnerability assessment…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Information Security Management, LLCismllc.com HQ: Brielle, NJ, United StatesReported employees: 1-10 | Brielle, NJ, United States | 1-10 | Exact match | 5 contacts → |
“Information Security Management, LLC (ISM, LLC) is a nationwide CyberSecurity & Privacy professional services group.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Green Delete INCgreendelete.com HQ: Frankfort, IL, United StatesReported employees: 11-50 | Frankfort, IL, United States | 11-50 | Exact match | 5 contacts → |
“Green Delete is a globally recognized leader in Data Privacy, management and information security.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Teamwerksteamwerks.com HQ: Chicago, IL, United StatesReported employees: 11-50 | Chicago, IL, United States | 11-50 | Exact match | 5 contacts → |
“TeamWerks is an IT company based in the United States.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Darkstack7 Cyber Defensedarkstack7.com HQ: Charlotte, NC, United StatesReported employees: 1-10 | Charlotte, NC, United States | 1-10 | Exact match | 5 contacts → |
“Darkstack7 Cyber Defense is a next-generation cybersecurity consulting firm purpose-built for high-stakes situations.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Breachsensebreachsense.io HQ: Cleveland, OH, United StatesReported employees: 1-10 | Cleveland, OH, United States | 1-10 | Exact match | 5 contacts → |
“We monitor your company for data breaches in real time 300 billion+ PII records 30 billion passwords 50+ breach sources indexed daily” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Libertyidlibertyid.com HQ: Denver, CO, United StatesReported employees: 1-10 | Denver, CO, United States | 1-10 | Exact match | 4 contacts → |
“Why LibertyID?” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Intellinetic Cyber Consultantsintelcyberx.us HQ: Atlanta, GA, United StatesReported employees: 11-50 | Atlanta, GA, United States | 11-50 | Exact match | 4 contacts → |
“We combine pre-breach due diligence with on-site security engineering and triage services to provide our clients with the expertise, tools, and workforce they need to better…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cyber Narus LLCcybernarus.com HQ: Bloomington, MN, United StatesReported employees: 11-50 | Bloomington, MN, United States | 11-50 | Exact match | 3 contacts → |
“Founded in 2004, Cyber Narus (CN) has grown from its origins as Enterprise Knowledge Partners, LLC (EKP) into a premier cyber security consulting firm with a strong national and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Identity Fraud INCidentityfraud.com HQ: Walnut Creek, CA, United StatesReported employees: 1-10 | Walnut Creek, CA, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 19 | Hammer IT Consulting, INChammeritconsulting.com HQ: Naples, United StatesReported employees: 1-10 | Naples, United States | 1-10 | Exact match | 3 contacts → |
“Hammer IT Consulting, an information technology (IT) consulting company that provides some very unique services designed to reduce data breaches and improve overall corporate…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Azen Consultingtrustazen.com HQ: Boca Raton, FL, United StatesReported employees: 1-10 | Boca Raton, FL, United States | 1-10 | Exact match | 2 contacts → |
“Data protection is our passion, so it doesn’t have to be yours.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Digital Security Consulting, INCdsconsult.net HQ: Los Angeles, CA, United StatesReported employees: 11-50 | Los Angeles, CA, United States | 11-50 | Exact match | 2 contacts → |
“Digital Security Consulting offers information security consulting services to help our clients avoid costly breaches of security that often result in financial losses, a loss of…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Accord Securityaccordinfosec.com HQ: Ridgewood, NJ, United StatesReported employees: 1-10 | Ridgewood, NJ, United States | 1-10 | Exact match | 2 contacts → |
“Accord is a boutique consultancy fielding a team of highly experienced cyber security professionals focused on bringing quality infosec management and incident response solutions…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Security Brain Consultingsecuritybrainconsulting.com HQ: Milford, MA, United StatesReported employees: 1-10 | Milford, MA, United States | 1-10 | Exact match | 1 contacts → |
“Don't take shortcuts when it comes to Information Security, Privacy, and Compliance.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | John Reed Stark Consulting LLCjohnreedstark.com HQ: Bethesda, MD, United StatesReported employees: 1-10 | Bethesda, MD, United States | 1-10 | Exact match | 1 contacts → |
“John Reed Stark Consulting LLC offers expertise in the fields of data breach, cybersecurity, cybercrime and incident response.” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Leonard Rivera LAW Pllclrlawpllc.com HQ: Westbury, NY, United StatesReported employees: 1-10 | Westbury, NY, United States | 1-10 | Exact match | 1 contacts → |
“High performing, strategic-thinking legal and business professional with many years of experience in law, business ownership, management and operations in both the private and…” Recorded description excerpt · September 19, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Data breach notification services: dataset insights
September 19, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
59 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 60 companies.
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.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
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 19, 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 ↗
Questions about this company list
What does Exact match mean for data breach notification services?
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 data breach notification services did RevenueBase find based in the United States?
The saved snapshot records 60 matching company records, 739 tracked contacts and 369 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 19, 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
Data breach notification services by geography
Cite this list
RevenueBase Data Team. Top 25 data breach notification services based in the United States. Snapshot: September 19, 2026. https://revenuebase.ai/companies/data-breach-notification-services/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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