Company lists · Data refreshed November 2026
Top 25 Fractional ciso services worldwide
RevenueBase identified 267 company matches for fractional ciso services worldwide as of November 2026 and tracks 613 professional contacts across them, including 178 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for fractional ciso services 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 fractional ciso services 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.
The 25 largest fractional ciso services worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 156 contacts → | ||||
Exact match “Struggling to keep your small or mid-market company secure, data-driven, and AI-ready while staying on budget?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 17 contacts → | ||||
Exact match “Fractional CISO is the on-demand cybersecurity leadership company that provides Chief Information Security Officer (CISO) capabilities as a service.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 14 contacts → | ||||
Exact match “DataSure24 is a managed security service provider (MSSP) with over 20 years of experience serving clients technology needs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 12 contacts → | ||||
Exact match “Attitude SI propose des prestations de Directeur de système d’information (DSI), ou de responsable informatique en temps partagé.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 10 contacts → | ||||
Exact match “IOmergent provides cybersecurity advisory services that help growth-stage companies build practical security programs without the overhead of hiring full-time security executives.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 7 contacts → | ||||
Exact match “Through reflection, LetsReflect helps our customers to resolve the following pain areas of their IT Setup: 1.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 6 contacts → | ||||
Exact match “Evolve beyond small business IT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 5 contacts → | ||||
Exact match “The best Virtual CISO and cybersecurity service for companies with fewer than 250 employees.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 5 contacts → | ||||
Exact match “We offer CISO (Chief Information Security Officer) and Security Architect -as-a-service helping our customers to minimize risk exposure and successfully design security and IT…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 4 contacts → | ||||
Exact match “Curated Cyber provides fractional vCISO services to help businesses navigate cybersecurity with confidence.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 4 contacts → | ||||
Exact match “Guardsman provides fractional Chief Technology Officer (CTO) and Chief Information Security Officer (CISO) services to alternative investment firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 4 contacts → | ||||
Exact match “Boutique cybersecurity consulting firm focused on delivering premium services in the areas of fractional CISO staffing, maturity assessments, strategic roadmaps, project…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 3 contacts → | ||||
Exact match “Cybersecurity leadership shouldn't be a luxury reserved for large enterprises.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 3 contacts → | ||||
Exact match “Fractional, Part-Time, or On-Demand CIO services in St.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 3 contacts → | ||||
Exact match “In today's digital landscape it is essential for your organization to protect its information.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 3 contacts → | ||||
Exact match “We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 3 contacts → | ||||
Exact match “Quantum's Virtual Chief Information Security Officer (QvCISO) Services can help guide your company towards effective cybersecurity and compliance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match “All companies need a technology and cybersecurity vision.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 3 contacts → | ||||
Exact match “AlphaHelio is a specialized technology and cybersecurity consultancy that blurs the lines between CIO, CTO, and CISO, offering flexible, fractional CxO services and cybersecurity…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 3 contacts → | ||||
Exact match “Providing the security leadership your program needs without the resource, time, and financial commitments of a hiring a full time CISO.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 3 contacts → | ||||
Exact match “The CISOWise program delivers dedicated cyber expertise at the second line of defense.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 3 contacts → | ||||
Exact match “Who’s Accountable for Cyber Risk at Your Company?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 3 contacts → | ||||
Exact match “ACyber virtual CISO service plans: Basic: •Dedicated personal security expert; •Security status overview, assessments (DORA, NIS2, AI, etc.), and reporting; •Security awareness…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match “CIO Now provides CIO Services to small and medium sized businesses in Arizona.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “SimpleTech offers specialized fractional CIO services with a focus on cloud integration, cybersecurity, managed IT services, and compliance.” Recorded in the RevenueBase company graph · Nov 6, 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 “fractional ciso 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 267 fractional ciso services worldwide
See the full list, filter by size, metro and specialty, and access 178 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Fractional ciso services worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 fractional ciso services are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “fractional ciso 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. 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 178 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.
Fractional ciso services by location
1 lists · largest firstEvery Fractional ciso services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 “fractional ciso services”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many fractional ciso services are there worldwide?
RevenueBase identified 267 company matches for fractional ciso services 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?
Team Karimganj tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most fractional ciso services?
The United States leads with 141 companies. Every fractional ciso services list by country and city is linked on this page.
Which city has the most fractional ciso services?
London leads with 9 company records, followed by New York (8) and Austin (5).
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 178 professional contacts with verified work emails tracked across these 267 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.
Ready to reach these companies? Verified emails and direct dials for all 267 fractional ciso services worldwide. 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.
More company lists
Company intelligence · public preview
Top 25 fractional ciso services worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 267 matching company records for fractional ciso services worldwide, with 613 tracked contacts and 178 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: November 6, 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 fractional ciso services worldwide
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 |  Team Karimganjteamkarimganj.comHQ: Karimganj, IndiaReported employees: 51-200 | Karimganj, India | 51-200 | Exact match | 156 contacts → |
“Struggling to keep your small or mid-market company secure, data-driven, and AI-ready while staying on budget?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Fractional Cisofractionalciso.comHQ: Auburndale, MA, United StatesReported employees: 11-50 | Auburndale, MA, United States | 11-50 | Exact match | 17 contacts → |
“Fractional CISO is the on-demand cybersecurity leadership company that provides Chief Information Security Officer (CISO) capabilities as a service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Datasure24datasure24.comHQ: Buffalo, NY, United StatesReported employees: 11-50 | Buffalo, NY, United States | 11-50 | Exact match | 14 contacts → |
“DataSure24 is a managed security service provider (MSSP) with over 20 years of experience serving clients technology needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Attitude SIattitude-si.comHQ: Capdenac, FranceReported employees: 1-10 | Capdenac, France | 1-10 | Exact match | 12 contacts → |
“Attitude SI propose des prestations de Directeur de système d’information (DSI), ou de responsable informatique en temps partagé.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Iomergentiomergent.comHQ: Washington, NY, United StatesReported employees: 11-50 | Washington, NY, United States | 11-50 | Exact match | 10 contacts → |
“IOmergent provides cybersecurity advisory services that help growth-stage companies build practical security programs without the overhead of hiring full-time security executives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Letsreflectletsreflect.inHQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 7 contacts → |
“Through reflection, LetsReflect helps our customers to resolve the following pain areas of their IT Setup: 1.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Blue Ravenblueraven.ioHQ: Glendale, CO, United StatesReported employees: 1-10 | Glendale, CO, United States | 1-10 | Exact match | 6 contacts → |
“Evolve beyond small business IT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Adelia Riskadeliarisk.comHQ: New Bedford, MA, United StatesReported employees: 1-10 | New Bedford, MA, United States | 1-10 | Exact match | 5 contacts → |
“The best Virtual CISO and cybersecurity service for companies with fewer than 250 employees.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  NS Advisorynsadvisory.lvHQ: Riga, LatviaReported employees: 1-10 | Riga, Latvia | 1-10 | Exact match | 5 contacts → |
“We offer CISO (Chief Information Security Officer) and Security Architect -as-a-service helping our customers to minimize risk exposure and successfully design security and IT…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Curated Cybercuratedcyber.comHQ: Arlington, TX, United StatesReported employees: 1-10 | Arlington, TX, United States | 1-10 | Exact match | 4 contacts → |
“Curated Cyber provides fractional vCISO services to help businesses navigate cybersecurity with confidence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Guardsman Technologyguardsmantech.comHQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 4 contacts → |
“Guardsman provides fractional Chief Technology Officer (CTO) and Chief Information Security Officer (CISO) services to alternative investment firms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Secure Strategies, LLCsecurestrategiesllc.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 4 contacts → |
“Boutique cybersecurity consulting firm focused on delivering premium services in the areas of fractional CISO staffing, maturity assessments, strategic roadmaps, project…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Cybercepscyberceps.comHQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 3 contacts → |
“Cybersecurity leadership shouldn't be a luxury reserved for large enterprises.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Lsrt Associateslsrtassociates.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“Fractional, Part-Time, or On-Demand CIO services in St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Whitehat Partners, LLCwhitehatpartnersllc.comHQ: Raleigh, NC, United StatesReported employees: 1-10 | Raleigh, NC, United States | 1-10 | Exact match | 3 contacts → |
“In today's digital landscape it is essential for your organization to protect its information.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Digital Attitudedigitalattitude.co.ukHQ: Northamptonshire, United KingdomReported employees: 1-10 | Northamptonshire, United Kingdom | 1-10 | Exact match | 3 contacts → |
“We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Quantum Vigilancequantumvigilance.comHQ: Chicago, IL, United StatesReported employees: 1-10 | Chicago, IL, United States | 1-10 | Exact match | 3 contacts → |
“Quantum's Virtual Chief Information Security Officer (QvCISO) Services can help guide your company towards effective cybersecurity and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  TCE Strategytcestrategy.comHQ: Minneapolis, MN, United StatesReported employees: 1-10 | Minneapolis, MN, United States | 1-10 | Exact match | 3 contacts → |
“All companies need a technology and cybersecurity vision.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Alphahelioalphahelio.comHQ: Detroit, MI, United StatesReported employees: 1-10 | Detroit, MI, United States | 1-10 | Exact match | 3 contacts → |
“AlphaHelio is a specialized technology and cybersecurity consultancy that blurs the lines between CIO, CTO, and CISO, offering flexible, fractional CxO services and cybersecurity…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  securitee.iosecuritee.ioHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“Providing the security leadership your program needs without the resource, time, and financial commitments of a hiring a full time CISO.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Cisowisecisowise.comHQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 3 contacts → |
“The CISOWise program delivers dedicated cyber expertise at the second line of defense.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  RTB Technologies, LLCrtbtechnologies.comHQ: Aurora, CO, United StatesReported employees: 1-10 | Aurora, CO, United States | 1-10 | Exact match | 3 contacts → |
“Who’s Accountable for Cyber Risk at Your Company?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Acyberacyber.ioHQ: Vilnius, LithuaniaReported employees: 1-10 | Vilnius, Lithuania | 1-10 | Exact match | 3 contacts → |
“ACyber virtual CISO service plans: Basic: •Dedicated personal security expert; •Security status overview, assessments (DORA, NIS2, AI, etc.), and reporting; •Security awareness…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  CIO NOWcio-now.comHQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“CIO Now provides CIO Services to small and medium sized businesses in Arizona.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Simple Techsimple.techHQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 3 contacts → |
“SimpleTech offers specialized fractional CIO services with a focus on cloud integration, cybersecurity, managed IT services, and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 267 company matches
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Fractional ciso services: dataset insights
November 6, 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
267 records in the displayed employee bands.
0 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 267 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: November 6, 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 ↗
Fractional ciso services by location
1 lists · largest firstEvery Fractional ciso services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for fractional ciso 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 fractional ciso services did RevenueBase find worldwide?
The saved snapshot records 267 matching company records, 613 tracked contacts and 178 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 25 fractional ciso services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/fractional-ciso-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 fractional ciso services worldwide
RevenueBase records 267 matching company records for fractional ciso services worldwide, with 613 tracked contacts and 178 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: November 6, 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 fractional ciso services worldwide
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 | Team Karimganjteamkarimganj.com HQ: Karimganj, IndiaReported employees: 51-200 | Karimganj, India | 51-200 | Exact match | 156 contacts → |
“Struggling to keep your small or mid-market company secure, data-driven, and AI-ready while staying on budget?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Fractional Cisofractionalciso.com HQ: Auburndale, MA, United StatesReported employees: 11-50 | Auburndale, MA, United States | 11-50 | Exact match | 17 contacts → |
“Fractional CISO is the on-demand cybersecurity leadership company that provides Chief Information Security Officer (CISO) capabilities as a service.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Datasure24datasure24.com HQ: Buffalo, NY, United StatesReported employees: 11-50 | Buffalo, NY, United States | 11-50 | Exact match | 14 contacts → |
“DataSure24 is a managed security service provider (MSSP) with over 20 years of experience serving clients technology needs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Attitude SIattitude-si.com HQ: Capdenac, FranceReported employees: 1-10 | Capdenac, France | 1-10 | Exact match | 12 contacts → |
“Attitude SI propose des prestations de Directeur de système d’information (DSI), ou de responsable informatique en temps partagé.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Iomergentiomergent.com HQ: Washington, NY, United StatesReported employees: 11-50 | Washington, NY, United States | 11-50 | Exact match | 10 contacts → |
“IOmergent provides cybersecurity advisory services that help growth-stage companies build practical security programs without the overhead of hiring full-time security executives.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Letsreflectletsreflect.in HQ: Pune, IndiaReported employees: 1-10 | Pune, India | 1-10 | Exact match | 7 contacts → |
“Through reflection, LetsReflect helps our customers to resolve the following pain areas of their IT Setup: 1.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Blue Ravenblueraven.io HQ: Glendale, CO, United StatesReported employees: 1-10 | Glendale, CO, United States | 1-10 | Exact match | 6 contacts → |
“Evolve beyond small business IT.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Adelia Riskadeliarisk.com HQ: New Bedford, MA, United StatesReported employees: 1-10 | New Bedford, MA, United States | 1-10 | Exact match | 5 contacts → |
“The best Virtual CISO and cybersecurity service for companies with fewer than 250 employees.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | NS Advisorynsadvisory.lv HQ: Riga, LatviaReported employees: 1-10 | Riga, Latvia | 1-10 | Exact match | 5 contacts → |
“We offer CISO (Chief Information Security Officer) and Security Architect -as-a-service helping our customers to minimize risk exposure and successfully design security and IT…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Curated Cybercuratedcyber.com HQ: Arlington, TX, United StatesReported employees: 1-10 | Arlington, TX, United States | 1-10 | Exact match | 4 contacts → |
“Curated Cyber provides fractional vCISO services to help businesses navigate cybersecurity with confidence.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Guardsman Technologyguardsmantech.com HQ: New York, United StatesReported employees: 1-10 | New York, United States | 1-10 | Exact match | 4 contacts → |
“Guardsman provides fractional Chief Technology Officer (CTO) and Chief Information Security Officer (CISO) services to alternative investment firms.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Secure Strategies, LLCsecurestrategiesllc.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 4 contacts → |
“Boutique cybersecurity consulting firm focused on delivering premium services in the areas of fractional CISO staffing, maturity assessments, strategic roadmaps, project…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cybercepscyberceps.com HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 3 contacts → |
“Cybersecurity leadership shouldn't be a luxury reserved for large enterprises.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Lsrt Associateslsrtassociates.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“Fractional, Part-Time, or On-Demand CIO services in St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Whitehat Partners, LLCwhitehatpartnersllc.com HQ: Raleigh, NC, United StatesReported employees: 1-10 | Raleigh, NC, United States | 1-10 | Exact match | 3 contacts → |
“In today's digital landscape it is essential for your organization to protect its information.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Digital Attitudedigitalattitude.co.uk HQ: Northamptonshire, United KingdomReported employees: 1-10 | Northamptonshire, United Kingdom | 1-10 | Exact match | 3 contacts → |
“We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Quantum Vigilancequantumvigilance.com HQ: Chicago, IL, United StatesReported employees: 1-10 | Chicago, IL, United States | 1-10 | Exact match | 3 contacts → |
“Quantum's Virtual Chief Information Security Officer (QvCISO) Services can help guide your company towards effective cybersecurity and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TCE Strategytcestrategy.com HQ: Minneapolis, MN, United StatesReported employees: 1-10 | Minneapolis, MN, United States | 1-10 | Exact match | 3 contacts → |
“All companies need a technology and cybersecurity vision.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Alphahelioalphahelio.com HQ: Detroit, MI, United StatesReported employees: 1-10 | Detroit, MI, United States | 1-10 | Exact match | 3 contacts → |
“AlphaHelio is a specialized technology and cybersecurity consultancy that blurs the lines between CIO, CTO, and CISO, offering flexible, fractional CxO services and cybersecurity…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | securitee.iosecuritee.io HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“Providing the security leadership your program needs without the resource, time, and financial commitments of a hiring a full time CISO.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Cisowisecisowise.com HQ: Austin, TX, United StatesReported employees: 1-10 | Austin, TX, United States | 1-10 | Exact match | 3 contacts → |
“The CISOWise program delivers dedicated cyber expertise at the second line of defense.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | RTB Technologies, LLCrtbtechnologies.com HQ: Aurora, CO, United StatesReported employees: 1-10 | Aurora, CO, United States | 1-10 | Exact match | 3 contacts → |
“Who’s Accountable for Cyber Risk at Your Company?” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Acyberacyber.io HQ: Vilnius, LithuaniaReported employees: 1-10 | Vilnius, Lithuania | 1-10 | Exact match | 3 contacts → |
“ACyber virtual CISO service plans: Basic: •Dedicated personal security expert; •Security status overview, assessments (DORA, NIS2, AI, etc.), and reporting; •Security awareness…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | CIO NOWcio-now.com HQ: United StatesReported employees: 1-10 | United States | 1-10 | Exact match | 3 contacts → |
“CIO Now provides CIO Services to small and medium sized businesses in Arizona.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Simple Techsimple.tech HQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 3 contacts → |
“SimpleTech offers specialized fractional CIO services with a focus on cloud integration, cybersecurity, managed IT services, and compliance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 267 company matches
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Fractional ciso services: dataset insights
November 6, 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
267 records in the displayed employee bands.
0 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 267 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: November 6, 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 ↗
Fractional ciso services by location
1 lists · largest firstEvery Fractional ciso services list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for fractional ciso 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 fractional ciso services did RevenueBase find worldwide?
The saved snapshot records 267 matching company records, 613 tracked contacts and 178 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: November 6, 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.
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Cite this list
RevenueBase Data Team. Top 25 fractional ciso services worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/fractional-ciso-services.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗