Company lists · Data refreshed November 2026
Top 25 Fractional ciso services based in the United States
RevenueBase identified 141 company matches for fractional ciso services associated with the United States as of November 2026 and tracks 254 professional contacts across them, including 79 with verified work emails. New York is the largest hub.
This list covers company matches for fractional ciso 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 November 6, 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 fractional ciso services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 | |||||
| 2 | 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 | |||||
| 3 | 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 | |||||
| 4 | 6 contacts → | ||||
Exact match “Evolve beyond small business IT.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 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 | |||||
| 6 | 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 | |||||
| 7 | 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 | |||||
| 8 | 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 | |||||
| 9 | 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 | |||||
| 10 | 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 | |||||
| 11 | 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 | |||||
| 12 | 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 | |||||
| 13 | 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 | |||||
| 14 | 2 contacts → | ||||
Exact match “A relationship focused consultant, Affinitas Technology Solutions focuses on providing businesses with compliance and cybersecurity services for clients around the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “US financial institutions hire us when they need to demonstrate compliance to their information security, SOC2, and consumer protection requirements.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “Tech Cartographer is an independent cybersecurity advisory firm serving small and mid-size businesses that need CISO-level security expertise without the cost or commitment of a…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 2 contacts → | ||||
Exact match “Somewhere on your shared drive is a document that says your firm encrypts every laptop.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 2 contacts → | ||||
Exact match “We take the complexity out of managing cybersecurity risk.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “501CISO, powered by ClearTone Consulting, provides specialized cybersecurity leadership and services tailored for nonprofit organizations, associations, and medical clinics.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 2 contacts → | ||||
Exact match “It's a scary world out there.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 2 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 2 contacts → | ||||
Exact match “InfoSec Advisors is an experienced team of former Chief Information and Security Officers, enterprise level IT Security Consultants, Systems and Network Engineers, and Solutions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “WHAT WE DO: To put it simply, think of Business Cyber Shield as your virtual Chief Information Security Officer, enabling you to focus on what's important within your organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “Tullio IT is a fractional CIO and CISO practice for the mid-market, the executive technology and security seat, without the full-time hire.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 1 contacts → | ||||
Exact match “Consulting, Fractional and Advisory Services CIO | CTO | Business and Technology Strategy and Alignment | Startup Founder Advisor, Executive and Board Support” 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 141 fractional ciso services based in the United States
See the full list, filter by size, metro and specialty, and access 79 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Fractional ciso services based in the United States at a glance
As of Nov 6, 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 141 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 “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. 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 79 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.
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 based in the United States?
RevenueBase identified 141 company matches for fractional ciso services associated with the United States 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?
Fractional Ciso tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most fractional ciso services?
New York leads with 8 company records, followed by Austin (5) and San Diego (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 79 professional contacts with verified work emails tracked across these 141 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 141 fractional ciso 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.
More company lists
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- AI companies based in the United States
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Company intelligence · public preview
Top 25 fractional ciso 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 141 matching company records for fractional ciso services based in the United States, with 254 tracked contacts and 79 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 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 |  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. | |||||
| 2 |  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. | |||||
| 3 |  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. | |||||
| 4 |  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. | |||||
| 5 |  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. | |||||
| 6 |  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. | |||||
| 7 |  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. | |||||
| 8 |  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. | |||||
| 9 |  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. | |||||
| 10 |  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. | |||||
| 11 |  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. | |||||
| 12 |  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. | |||||
| 13 |  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. | |||||
| 14 |  Affinitas Technology Solutionsaffinitastech.comHQ: Charlottesville, VA, United StatesReported employees: 1-10 | Charlottesville, VA, United States | 1-10 | Exact match | 2 contacts → |
“A relationship focused consultant, Affinitas Technology Solutions focuses on providing businesses with compliance and cybersecurity services for clients around the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Cybersecuritybasecybersecuritybase.comHQ: Brookfield, IL, United StatesReported employees: 1-10 | Brookfield, IL, United States | 1-10 | Exact match | 2 contacts → |
“US financial institutions hire us when they need to demonstrate compliance to their information security, SOC2, and consumer protection requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Tech Cartographertechcartographer.comHQ: Wabash, IN, United StatesReported employees: 1-10 | Wabash, IN, United States | 1-10 | Exact match | 2 contacts → |
“Tech Cartographer is an independent cybersecurity advisory firm serving small and mid-size businesses that need CISO-level security expertise without the cost or commitment of a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Fortified Services INCfortifiedservices.comHQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 2 contacts → |
“Somewhere on your shared drive is a document that says your firm encrypts every laptop.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  K2 Cybersecurity Advisoryk2ca.comHQ: Saint Augustine, FL, United StatesReported employees: 1-10 | Saint Augustine, FL, United States | 1-10 | Exact match | 2 contacts → |
“We take the complexity out of managing cybersecurity risk.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Cleartone Consulting LLCcleartoneconsulting.comHQ: Frederick, MD, United StatesReported employees: 1-10 | Frederick, MD, United States | 1-10 | Exact match | 2 contacts → |
“501CISO, powered by ClearTone Consulting, provides specialized cybersecurity leadership and services tailored for nonprofit organizations, associations, and medical clinics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Tracc Development, INCtracc.comHQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 2 contacts → |
“It's a scary world out there.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Advanced Cyber Security Protectionacsp4u.comHQ: Little Rock, AR, United StatesReported employees: 1-10 | Little Rock, AR, United States | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 |  Infosec Advisors, LLCinfosecadvisors.comHQ: Lexington, SC, United StatesReported employees: 1-10 | Lexington, SC, United States | 1-10 | Exact match | 2 contacts → |
“InfoSec Advisors is an experienced team of former Chief Information and Security Officers, enterprise level IT Security Consultants, Systems and Network Engineers, and Solutions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Business Cyber Shieldbusinesscybershield.comHQ: Reston, VA, United StatesReported employees: 11-50 | Reston, VA, United States | 11-50 | Exact match | 1 contacts → |
“WHAT WE DO: To put it simply, think of Business Cyber Shield as your virtual Chief Information Security Officer, enabling you to focus on what's important within your organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Tullio ITtullioit.comHQ: New Lenox, IL, United StatesReported employees: 1-10 | New Lenox, IL, United States | 1-10 | Exact match | 1 contacts → |
“Tullio IT is a fractional CIO and CISO practice for the mid-market, the executive technology and security seat, without the full-time hire.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Energize Works, LLCenergizeworks.comHQ: Renton, WA, United StatesReported employees: 1-10 | Renton, WA, United States | 1-10 | Exact match | 1 contacts → |
“Consulting, Fractional and Advisory Services CIO | CTO | Business and Technology Strategy and Alignment | Startup Founder Advisor, Executive and Board Support” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 141 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
141 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 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 141 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 ↗
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 based in the United States?
The saved snapshot records 141 matching company records, 254 tracked contacts and 79 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.
Related lists
Cite this list
RevenueBase Data Team. Top 25 fractional ciso services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/fractional-ciso-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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 fractional ciso services based in the United States
RevenueBase records 141 matching company records for fractional ciso services based in the United States, with 254 tracked contacts and 79 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 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 | 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. | |||||
| 2 | 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. | |||||
| 3 | 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. | |||||
| 4 | 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. | |||||
| 5 | 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. | |||||
| 6 | 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. | |||||
| 7 | 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. | |||||
| 8 | 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. | |||||
| 9 | 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. | |||||
| 10 | 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. | |||||
| 11 | 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. | |||||
| 12 | 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. | |||||
| 13 | 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. | |||||
| 14 | Affinitas Technology Solutionsaffinitastech.com HQ: Charlottesville, VA, United StatesReported employees: 1-10 | Charlottesville, VA, United States | 1-10 | Exact match | 2 contacts → |
“A relationship focused consultant, Affinitas Technology Solutions focuses on providing businesses with compliance and cybersecurity services for clients around the globe.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Cybersecuritybasecybersecuritybase.com HQ: Brookfield, IL, United StatesReported employees: 1-10 | Brookfield, IL, United States | 1-10 | Exact match | 2 contacts → |
“US financial institutions hire us when they need to demonstrate compliance to their information security, SOC2, and consumer protection requirements.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Tech Cartographertechcartographer.com HQ: Wabash, IN, United StatesReported employees: 1-10 | Wabash, IN, United States | 1-10 | Exact match | 2 contacts → |
“Tech Cartographer is an independent cybersecurity advisory firm serving small and mid-size businesses that need CISO-level security expertise without the cost or commitment of a…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Fortified Services INCfortifiedservices.com HQ: Washington, DC, United StatesReported employees: 11-50 | Washington, DC, United States | 11-50 | Exact match | 2 contacts → |
“Somewhere on your shared drive is a document that says your firm encrypts every laptop.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | K2 Cybersecurity Advisoryk2ca.com HQ: Saint Augustine, FL, United StatesReported employees: 1-10 | Saint Augustine, FL, United States | 1-10 | Exact match | 2 contacts → |
“We take the complexity out of managing cybersecurity risk.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Cleartone Consulting LLCcleartoneconsulting.com HQ: Frederick, MD, United StatesReported employees: 1-10 | Frederick, MD, United States | 1-10 | Exact match | 2 contacts → |
“501CISO, powered by ClearTone Consulting, provides specialized cybersecurity leadership and services tailored for nonprofit organizations, associations, and medical clinics.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Tracc Development, INCtracc.com HQ: San Diego, CA, United StatesReported employees: 1-10 | San Diego, CA, United States | 1-10 | Exact match | 2 contacts → |
“It's a scary world out there.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Advanced Cyber Security Protectionacsp4u.com HQ: Little Rock, AR, United StatesReported employees: 1-10 | Little Rock, AR, United States | 1-10 | Exact match | 2 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | Infosec Advisors, LLCinfosecadvisors.com HQ: Lexington, SC, United StatesReported employees: 1-10 | Lexington, SC, United States | 1-10 | Exact match | 2 contacts → |
“InfoSec Advisors is an experienced team of former Chief Information and Security Officers, enterprise level IT Security Consultants, Systems and Network Engineers, and Solutions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Business Cyber Shieldbusinesscybershield.com HQ: Reston, VA, United StatesReported employees: 11-50 | Reston, VA, United States | 11-50 | Exact match | 1 contacts → |
“WHAT WE DO: To put it simply, think of Business Cyber Shield as your virtual Chief Information Security Officer, enabling you to focus on what's important within your organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Tullio ITtullioit.com HQ: New Lenox, IL, United StatesReported employees: 1-10 | New Lenox, IL, United States | 1-10 | Exact match | 1 contacts → |
“Tullio IT is a fractional CIO and CISO practice for the mid-market, the executive technology and security seat, without the full-time hire.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Energize Works, LLCenergizeworks.com HQ: Renton, WA, United StatesReported employees: 1-10 | Renton, WA, United States | 1-10 | Exact match | 1 contacts → |
“Consulting, Fractional and Advisory Services CIO | CTO | Business and Technology Strategy and Alignment | Startup Founder Advisor, Executive and Board Support” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 141 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
141 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 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 141 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 ↗
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 based in the United States?
The saved snapshot records 141 matching company records, 254 tracked contacts and 79 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.
Related lists
Cite this list
RevenueBase Data Team. Top 25 fractional ciso services based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/fractional-ciso-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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