Company lists · Data refreshed September 2026
Top 18 Network security service providers based in Dallas, United States
RevenueBase identified 56 company matches for network security service providers associated with Dallas, United States as of September 2026 and tracks 772 professional contacts across them, including 197 with verified work emails. Across the United States, New York is the largest hub for this category (96 companies); Dallas has 56.
This list covers company matches for network security service providers associated with Dallas, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 14, 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 18 largest network security service providers based in Dallas, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 156 contacts → | ||||
Exact match “AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 2 | 154 contacts → | ||||
Exact match “SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 3 | 70 contacts → | ||||
Exact match “Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 4 | 64 contacts → | ||||
Exact match “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 5 | 15 contacts → | ||||
Exact match “At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 6 | 10 contacts → | ||||
Exact match “We are like an “easy button” for your IT Department!” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 7 | 7 contacts → | ||||
Exact match “Did you know that the IT Industry is completely unregulated?” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 8 | 6 contacts → | ||||
Exact match “We are security engineers with over 20 years of experience working in the DFW Metroplex.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 9 | 4 contacts → | ||||
Exact match “ASI Security Partners, a leading network and internet security company, delivers a comprehensive set of best-of-breed solutions that help customers protect their critical…” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 10 | 4 contacts → | ||||
Exact match “Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 11 | 3 contacts → | ||||
Exact match “Method is here to assist its clients in protecting their vital information from the plethora of cyber-attacks occurring within all business segments.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 12 | 2 contacts → | ||||
Exact match “Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 13 | 2 contacts → | ||||
Exact match “Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 14 | 2 contacts → | ||||
Exact match “For nearly 20 years, Hawk Network Defense has helped organizations detect threats, reduce exposure, and respond to security incidents faster.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “DataProtect Group is a leader in the MSP industry.” Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase | |||||
| 18 | 1 contacts → | ||||
Exact match “Cyberdors is a cybersecurity advisory and managed services firm helping organizations identify risks, build security strategies, and stay protected.” Recorded in the RevenueBase company graph · Sep 14, 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 “network security service providers”. 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 18 of 56 network security service providers based in Dallas, United States
See the full list, filter by size, metro and specialty, and access 197 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Network security service providers based in Dallas, United States at a glance
As of Sep 14, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Dallas, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 56 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 Dallas, United States whose business descriptions match “network security service providers” 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 197 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 14, 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.
Network security service providers by metro in the United States
- Network security service providers in New York96
- Network security service providers in Austin63
- Network security service providers in Houston62
- Network security service providers in Miami58
- Network security service providers in Chicago57
- Network security service providers in San Francisco57
- Network security service providers in Atlanta50
- Network security service providers in Washington46
- Network security service providers in Tampa34
- Network security service providers in Los Angeles33
- Network security service providers in San Diego32
- Network security service providers in Las Vegas30
- Network security service providers in Columbia28
- Network security service providers in Boston27
- Network security service providers in Arlington26
- Network security service providers in Charlotte26
- Network security service providers in Denver26
- Network security service providers in San Jose26
- Network security service providers in Wilmington26
- Network security service providers in Phoenix25
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 “network security service providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many network security service providers are there based in Dallas, United States?
RevenueBase identified 56 company matches for network security service providers associated with Dallas, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
At&t Cybersecurity tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city in the United States has the most network security service providers?
New York leads the United States with 96 company records, followed by Austin (63) and Houston (62). Dallas has 56.
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 197 professional contacts with verified work emails tracked across these 56 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.
Ready to reach these companies? Verified emails and direct dials for all 56 network security service providers based in Dallas, United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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- New lists
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Company intelligence · public preview
Top 18 network security service providers based in Dallas, 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 56 matching company records for network security service providers based in Dallas, United States, with 772 tracked contacts and 197 verified work emails.
This public preview shows 18 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 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 18 network security service providers based in Dallas, 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 | At&t Cybersecuritycybersecurity.att.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 156 contacts → |
“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Sq1 Securitysq1.securityHQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 154 contacts → |
“SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Zyston LLCzyston.comHQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 70 contacts → |
“Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Apollo Information Systemsapollo-is.comHQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 64 contacts → |
“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Upstart Cyberupstartcyber.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 15 contacts → |
“At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Progressive IT Solutionsprogressiveitsolutions.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 10 contacts → |
“We are like an “easy button” for your IT Department!” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Phoenix IT Advisors LLCphoenixitadvisors.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 7 contacts → |
“Did you know that the IT Industry is completely unregulated?” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Black Belt Secureblackbeltsecure.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 6 contacts → |
“We are security engineers with over 20 years of experience working in the DFW Metroplex.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  ASI Security Partnersasi-securitypartners.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 4 contacts → |
“ASI Security Partners, a leading network and internet security company, delivers a comprehensive set of best-of-breed solutions that help customers protect their critical…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Birch Cline Cybersecuritybirchcline.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 4 contacts → |
“Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Method Cyber Securitymethodcybersecurity.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 3 contacts → |
“Method is here to assist its clients in protecting their vital information from the plethora of cyber-attacks occurring within all business segments.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  DL Cyberdlcyber.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cyber Defense Labscyberdefenselabs.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 2 contacts → |
“Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Hawk Network Defensehawkdefense.comHQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 2 contacts → |
“For nearly 20 years, Hawk Network Defense has helped organizations detect threats, reduce exposure, and respond to security incidents faster.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Netex Consultingnetex.consultingHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Slva Cybersecurityslva-cs.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Dataprotect Group LLCdataprotectgroup.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 1 contacts → |
“DataProtect Group is a leader in the MSP industry.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cyberdors Cybersecurity Institute CCI LLCcyberdors.comHQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 1 contacts → |
“Cyberdors is a cybersecurity advisory and managed services firm helping organizations identify risks, build security strategies, and stay protected.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 18 of 56 company matches
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Network security service providers: dataset insights
September 14, 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
56 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 United States list rather than for Dallas, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 56 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 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 ↗
Network security service providers by metro in the United States
- Network security service providers in New York96
- Network security service providers in Austin63
- Network security service providers in Houston62
- Network security service providers in Miami58
- Network security service providers in Chicago57
- Network security service providers in San Francisco57
- Network security service providers in Atlanta50
- Network security service providers in Washington46
- Network security service providers in Tampa34
- Network security service providers in Los Angeles33
- Network security service providers in San Diego32
- Network security service providers in Las Vegas30
- Network security service providers in Columbia28
- Network security service providers in Boston27
- Network security service providers in Arlington26
- Network security service providers in Charlotte26
- Network security service providers in Denver26
- Network security service providers in San Jose26
- Network security service providers in Wilmington26
- Network security service providers in Phoenix25
Questions about this company list
What does Exact match mean for network security service providers?
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 network security service providers did RevenueBase find based in Dallas, United States?
The saved snapshot records 56 matching company records, 772 tracked contacts and 197 verified emails. The public preview displays 18 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 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
Network security service providers by geography
- Network security service providers based in Brisbane, Australia
- Network security service providers based in Melbourne, Australia
- Network security service providers based in Sydney, Australia
- Network security service providers based in Calgary, Canada
- Network security service providers based in Montreal, Canada
- Network security service providers based in Ottawa, Canada
- Network security service providers based in Toronto, Canada
- Network security service providers based in Vancouver, Canada
- Network security service providers based in Ahmedabad, India
- Network security service providers based in Bangalore, India
- Network security service providers based in Chennai, India
- Network security service providers based in Gurgaon, India
Cite this list
RevenueBase Data Team. Top 18 network security service providers based in Dallas, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/network-security-service-providers/united-states/dallas.
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
- Network security service providers based in Brisbane, Australia
- Network security service providers based in Melbourne, Australia
- Network security service providers based in Sydney, Australia
- Network security service providers based in Calgary, Canada
- Network security service providers based in Montreal, Canada
- Network security service providers based in Ottawa, Canada
Company intelligence · public preview
Top 18 network security service providers based in Dallas, United States
RevenueBase records 56 matching company records for network security service providers based in Dallas, United States, with 772 tracked contacts and 197 verified work emails.
This public preview shows 18 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 14, 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 18 network security service providers based in Dallas, 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 | At&t Cybersecuritycybersecurity.att.com HQ: Dallas, TX, United StatesReported employees: 1,001-5,000 | Dallas, TX, United States | 1,001-5,000 | Exact match | 156 contacts → |
“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Sq1 Securitysq1.security HQ: Dallas, TX, United StatesReported employees: 201-500 | Dallas, TX, United States | 201-500 | Exact match | 154 contacts → |
“SQ1 Security is a global cybersecurity leader offering end-to-end cybersecurity and compliance solution.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Zyston LLCzyston.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 70 contacts → |
“Zyston is a next‑generation cybersecurity partner dedicated to helping organizations stay one step ahead of threats.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Apollo Information Systemsapollo-is.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 64 contacts → |
“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Upstart Cyberupstartcyber.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 15 contacts → |
“At Upstart Cyber, we bring the expertise gained from government and large-scale businesses to organizations of all sizes.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Progressive IT Solutionsprogressiveitsolutions.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 10 contacts → |
“We are like an “easy button” for your IT Department!” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Phoenix IT Advisors LLCphoenixitadvisors.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 7 contacts → |
“Did you know that the IT Industry is completely unregulated?” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Black Belt Secureblackbeltsecure.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 6 contacts → |
“We are security engineers with over 20 years of experience working in the DFW Metroplex.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | ASI Security Partnersasi-securitypartners.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 4 contacts → |
“ASI Security Partners, a leading network and internet security company, delivers a comprehensive set of best-of-breed solutions that help customers protect their critical…” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Birch Cline Cybersecuritybirchcline.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 4 contacts → |
“Birch Cline is a Dallas, Texas-based cybersecurity firm that specializes in protecting highly regulated environments and government agencies.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Method Cyber Securitymethodcybersecurity.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 3 contacts → |
“Method is here to assist its clients in protecting their vital information from the plethora of cyber-attacks occurring within all business segments.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | DL Cyberdlcyber.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“Dallas-based firm delivering strategic cybersecurity solutions that close critical security gaps and enable business growth.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Cyber Defense Labscyberdefenselabs.com HQ: Dallas, TX, United StatesReported employees: 51-200 | Dallas, TX, United States | 51-200 | Exact match | 2 contacts → |
“Cyber Defense Labs is a full life-cycle information security service provider helping companies manage, detect and respond to today’s cyber risks.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Hawk Network Defensehawkdefense.com HQ: Dallas, TX, United StatesReported employees: 11-50 | Dallas, TX, United States | 11-50 | Exact match | 2 contacts → |
“For nearly 20 years, Hawk Network Defense has helped organizations detect threats, reduce exposure, and respond to security incidents faster.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Netex Consultingnetex.consulting HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“We specialize in delivering next-generation cybersecurity solutions, cloud networking services, virtualization expertise, and comprehensive system administration.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Slva Cybersecurityslva-cs.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 2 contacts → |
“SLVA’s expertise has been hard won in the trenches of banks and financial services, healthcare, telecommunications, retail, utilities, and government organizations.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Dataprotect Group LLCdataprotectgroup.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 1 contacts → |
“DataProtect Group is a leader in the MSP industry.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cyberdors Cybersecurity Institute CCI LLCcyberdors.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 1 contacts → |
“Cyberdors is a cybersecurity advisory and managed services firm helping organizations identify risks, build security strategies, and stay protected.” Recorded description excerpt · September 14, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 18 of 56 company matches
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Network security service providers: dataset insights
September 14, 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
56 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 United States list rather than for Dallas, so it is reported there. Company counts and contact totals on this page are exact for Dallas, over 56 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 14, 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 ↗
Network security service providers by metro in the United States
- Network security service providers in New York96
- Network security service providers in Austin63
- Network security service providers in Houston62
- Network security service providers in Miami58
- Network security service providers in Chicago57
- Network security service providers in San Francisco57
- Network security service providers in Atlanta50
- Network security service providers in Washington46
- Network security service providers in Tampa34
- Network security service providers in Los Angeles33
- Network security service providers in San Diego32
- Network security service providers in Las Vegas30
- Network security service providers in Columbia28
- Network security service providers in Boston27
- Network security service providers in Arlington26
- Network security service providers in Charlotte26
- Network security service providers in Denver26
- Network security service providers in San Jose26
- Network security service providers in Wilmington26
- Network security service providers in Phoenix25
Questions about this company list
What does Exact match mean for network security service providers?
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 network security service providers did RevenueBase find based in Dallas, United States?
The saved snapshot records 56 matching company records, 772 tracked contacts and 197 verified emails. The public preview displays 18 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 14, 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
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- Network security service providers based in Gurgaon, India
Cite this list
RevenueBase Data Team. Top 18 network security service providers based in Dallas, United States. Snapshot: September 14, 2026. https://revenuebase.ai/companies/network-security-service-providers/united-states/dallas.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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