Company lists · Data refreshed October 2026
Top 21 Cyber security companies based in Boston, United States
RevenueBase identified 43 company matches for cyber security companies associated with Boston, United States as of October 2026 and tracks 4,180 professional contacts across them, including 1,868 with verified work emails. Across the United States, New York is the largest hub for this category (155 companies); Boston has 43.
This list covers company matches for cyber security companies associated with Boston, 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 October 1, 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 21 largest cyber security companies based in Boston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,822 contacts → | ||||
Exact match “Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 2 | 752 contacts → | ||||
Exact match “Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 3 | 309 contacts → | ||||
Exact match “Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 4 | 114 contacts → | ||||
Exact match “Corvus by Travelers is a team of underwriters, technologists, and cybersecurity pros on a mission to reduce cyber risk and make organizations safer.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 5 | 31 contacts → | ||||
Exact match “At Abusix, we empower businesses, ISPs, and email service providers with cutting-edge security solutions to safeguard digital infrastructure.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 6 | 22 contacts → | ||||
Exact match “Bradford Networks, a Fortinet Company, provides complete visibility into all network endpoints, enhance access control, & take security to the network edge.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 7 | 14 contacts → | ||||
Exact match “Is a cybersecurity engineering company that delivers live operational and executive oversight of IT infrastructure and cybersecurity posture to enterprise customers globally.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 8 | 14 contacts → | ||||
Exact match “Proinf is a complete suite of Cybersecurity and Professional Services Provider.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 9 | 13 contacts → | ||||
Exact match “Eos Systems, a leader in cyber security and technology delivery services, has been helping clients solve complex technology challenges for over 25 years.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 10 | 7 contacts → | ||||
Exact match “Since 2004, Vault America has safeguarded customers’ data and their businesses with automated and scalable, industry compliant cyber and data security services, aligned under our…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 11 | 6 contacts → | ||||
Exact match “FYEO is a leading cybersecurity company that utilizes the power of AI and decentralized technologies to secure individuals and enterprises from cyber threats.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 12 | 6 contacts → | ||||
Exact match “RedSense provides industry-leading intelligence services, adversary space interaction & monitoring, net flow monitoring and interpretation, and the development of custom threat…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 13 | 5 contacts → | ||||
Exact match “Seralys is a boutique cybersecurity firm founded in 2012.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 14 | 4 contacts → | ||||
Exact match “InferSight is one of the top trusted cyber security solutions partners in the industry.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 15 | 4 contacts → | ||||
Exact match “The SaltCISO Solution AN ESSENTIAL ALL-IN-ONE CYBERSECURITY SOLUTION Salt Cybersecurity sifted through the multitude of security products and services, determined what was most…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 16 | 4 contacts → | ||||
Exact match “Empowering organizations to secure their cloud, data, and identities with tailored protection and strategic expertise, we specialize in modern cybersecurity for Microsoft 365 and…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 17 | 4 contacts → | ||||
Exact match “Kaliber helps companies Improve their cyber posture, reduce risk and improve AI security awareness.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 18 | 3 contacts → | ||||
Exact match “The expertise of a CISO fully integrated into an end-to-end automated processes technology solution.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 19 | 2 contacts → | ||||
Exact match “At Arsenal we are dedicated to delivering premier cybersecurity solutions, safeguarding our clients' digital landscapes.” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “A global interdisciplinary analytics-driven and human-focused cybersecurity company which delivers innovative security solutions that ensure companies do what they do best -…” Recorded in the RevenueBase company graph · Oct 1, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “Santsec's approach to cybersecurity leverages a blend of real-world experience and cutting-edge technology.” Recorded in the RevenueBase company graph · Oct 1, 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 “cyber security companies”. 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 21 of 43 cyber security companies based in Boston, United States
See the full list, filter by size, metro and specialty, and access 1,868 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Cyber security companies based in Boston, United States at a glance
As of Oct 1, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 43 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 Boston, United States whose business descriptions match “cyber security companies” 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 1,868 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 October 1, 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.
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Herndon26
- Cyber security companies in Dover25
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 “cyber security companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many cyber security companies are there based in Boston, United States?
RevenueBase identified 43 company matches for cyber security companies associated with Boston, United States as of October 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?
Rapid7 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 cyber security companies?
New York leads the United States with 155 company records, followed by Atlanta (94) and Washington (94). Boston has 43.
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 1,868 professional contacts with verified work emails tracked across these 43 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 October 1, 2026.
Ready to reach these companies? Verified emails and direct dials for all 43 cyber security companies based in Boston, United States. Start with a free account, no credit card.
Download this list →Related lists
Cyber security companies by geography
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
- Cyber security companies based in Brasilia, Brazil
- Cyber security companies based in Rio De Janeiro, Brazil
- Cyber security companies based in Sao Paulo, Brazil
- Cyber security companies based in Calgary, Canada
- Cyber security companies based in Montreal, Canada
- Cyber security companies based in Ottawa, Canada
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 21 cyber security companies based in Boston, 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 43 matching company records for cyber security companies based in Boston, United States, with 4,180 tracked contacts and 1,868 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 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 21 cyber security companies based in Boston, 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 |  Rapid7r-7.coHQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 2,822 contacts → |
“Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Bitsightbitsight.comHQ: Boston, MA, United StatesReported employees: 501-1,000 | Boston, MA, United States | 501-1,000 | Exact match | 752 contacts → |
“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Cynet Securitycynet.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 309 contacts → |
“Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Corvus By Travelerscorvusinsurance.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 114 contacts → |
“Corvus by Travelers is a team of underwriters, technologists, and cybersecurity pros on a mission to reduce cyber risk and make organizations safer.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Abusix, INCabusix.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 31 contacts → |
“At Abusix, we empower businesses, ISPs, and email service providers with cutting-edge security solutions to safeguard digital infrastructure.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Bradford Networksbradfordnetworks.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 22 contacts → |
“Bradford Networks, a Fortinet Company, provides complete visibility into all network endpoints, enhance access control, & take security to the network edge.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Aceliumacelium.comHQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 14 contacts → |
“Is a cybersecurity engineering company that delivers live operational and executive oversight of IT infrastructure and cybersecurity posture to enterprise customers globally.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Proinfproinf.comHQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 14 contacts → |
“Proinf is a complete suite of Cybersecurity and Professional Services Provider.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  EOS Systemseos-systems.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 13 contacts → |
“Eos Systems, a leader in cyber security and technology delivery services, has been helping clients solve complex technology challenges for over 25 years.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Vault Americavaultamerica.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 7 contacts → |
“Since 2004, Vault America has safeguarded customers’ data and their businesses with automated and scalable, industry compliant cyber and data security services, aligned under our…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  FYEOfyeo.ioHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 6 contacts → |
“FYEO is a leading cybersecurity company that utilizes the power of AI and decentralized technologies to secure individuals and enterprises from cyber threats.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Redsenseredsense.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 6 contacts → |
“RedSense provides industry-leading intelligence services, adversary space interaction & monitoring, net flow monitoring and interpretation, and the development of custom threat…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Seralysseralys.comHQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 5 contacts → |
“Seralys is a boutique cybersecurity firm founded in 2012.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Infersight LLCinfersight.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 4 contacts → |
“InferSight is one of the top trusted cyber security solutions partners in the industry.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Salt Cybersecuritysaltcyber.comHQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 4 contacts → |
“The SaltCISO Solution AN ESSENTIAL ALL-IN-ONE CYBERSECURITY SOLUTION Salt Cybersecurity sifted through the multitude of security products and services, determined what was most…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Spherium Consulting Groupspheriuminc.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Empowering organizations to secure their cloud, data, and identities with tailored protection and strategic expertise, we specialize in modern cybersecurity for Microsoft 365 and…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Kaliber Data Securitykaliberdatasecurity.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Kaliber helps companies Improve their cyber posture, reduce risk and improve AI security awareness.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cisomatecisomate.comHQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 3 contacts → |
“The expertise of a CISO fully integrated into an end-to-end automated processes technology solution.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Arsenal Cyber Forcearsenalcyberforce.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“At Arsenal we are dedicated to delivering premier cybersecurity solutions, safeguarding our clients' digital landscapes.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Quantumstrikequantumstrike.comHQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 1 contacts → |
“A global interdisciplinary analytics-driven and human-focused cybersecurity company which delivers innovative security solutions that ensure companies do what they do best -…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Santsecsantsec.comHQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 1 contacts → |
“Santsec's approach to cybersecurity leverages a blend of real-world experience and cutting-edge technology.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 43 company matches
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Cyber security companies: dataset insights
October 1, 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
43 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 Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 43 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: October 1, 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 ↗
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Herndon26
- Cyber security companies in Dover25
Questions about this company list
What does Exact match mean for cyber security companies?
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 cyber security companies did RevenueBase find based in Boston, United States?
The saved snapshot records 43 matching company records, 4,180 tracked contacts and 1,868 verified emails. The public preview displays 21 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: October 1, 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
Cyber security companies by geography
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
- Cyber security companies based in Brasilia, Brazil
- Cyber security companies based in Rio De Janeiro, Brazil
- Cyber security companies based in Sao Paulo, Brazil
- Cyber security companies based in Calgary, Canada
- Cyber security companies based in Montreal, Canada
- Cyber security companies based in Ottawa, Canada
Cite this list
RevenueBase Data Team. Top 21 cyber security companies based in Boston, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cyber-security-companies/united-states/boston.
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
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
Company intelligence · public preview
Top 21 cyber security companies based in Boston, United States
RevenueBase records 43 matching company records for cyber security companies based in Boston, United States, with 4,180 tracked contacts and 1,868 verified work emails.
This public preview shows 21 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 1, 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 21 cyber security companies based in Boston, 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 | Rapid7r-7.co HQ: Boston, MA, United StatesReported employees: 1,001-5,000 | Boston, MA, United States | 1,001-5,000 | Exact match | 2,822 contacts → |
“Rapid7, Inc.(NASDAQ: RPD) is a global leader in AI-powered managed cybersecurity operations, trusted to advance organizations’ cyber resilience.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Bitsightbitsight.com HQ: Boston, MA, United StatesReported employees: 501-1,000 | Boston, MA, United States | 501-1,000 | Exact match | 752 contacts → |
“Bitsight is the global leader in cyber risk intelligence, leveraging advanced AI to empower organizations with precise insights derived from the industry’s most extensive external…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Cynet Securitycynet.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 309 contacts → |
“Cynet’s unified, AI-powered cybersecurity platform brings together a full suite of security capabilities in a single, simple solution, backed by 24x7 SOC support.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Corvus By Travelerscorvusinsurance.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 114 contacts → |
“Corvus by Travelers is a team of underwriters, technologists, and cybersecurity pros on a mission to reduce cyber risk and make organizations safer.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Abusix, INCabusix.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 31 contacts → |
“At Abusix, we empower businesses, ISPs, and email service providers with cutting-edge security solutions to safeguard digital infrastructure.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Bradford Networksbradfordnetworks.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 22 contacts → |
“Bradford Networks, a Fortinet Company, provides complete visibility into all network endpoints, enhance access control, & take security to the network edge.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Aceliumacelium.com HQ: Boston, United StatesReported employees: 51-200 | Boston, United States | 51-200 | Exact match | 14 contacts → |
“Is a cybersecurity engineering company that delivers live operational and executive oversight of IT infrastructure and cybersecurity posture to enterprise customers globally.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Proinfproinf.com HQ: Boston, MA, United StatesReported employees: 51-200 | Boston, MA, United States | 51-200 | Exact match | 14 contacts → |
“Proinf is a complete suite of Cybersecurity and Professional Services Provider.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | EOS Systemseos-systems.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 13 contacts → |
“Eos Systems, a leader in cyber security and technology delivery services, has been helping clients solve complex technology challenges for over 25 years.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Vault Americavaultamerica.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 7 contacts → |
“Since 2004, Vault America has safeguarded customers’ data and their businesses with automated and scalable, industry compliant cyber and data security services, aligned under our…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | FYEOfyeo.io HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 6 contacts → |
“FYEO is a leading cybersecurity company that utilizes the power of AI and decentralized technologies to secure individuals and enterprises from cyber threats.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Redsenseredsense.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 6 contacts → |
“RedSense provides industry-leading intelligence services, adversary space interaction & monitoring, net flow monitoring and interpretation, and the development of custom threat…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Seralysseralys.com HQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 5 contacts → |
“Seralys is a boutique cybersecurity firm founded in 2012.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Infersight LLCinfersight.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 4 contacts → |
“InferSight is one of the top trusted cyber security solutions partners in the industry.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Salt Cybersecuritysaltcyber.com HQ: Boston, MA, United StatesReported employees: 11-50 | Boston, MA, United States | 11-50 | Exact match | 4 contacts → |
“The SaltCISO Solution AN ESSENTIAL ALL-IN-ONE CYBERSECURITY SOLUTION Salt Cybersecurity sifted through the multitude of security products and services, determined what was most…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Spherium Consulting Groupspheriuminc.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Empowering organizations to secure their cloud, data, and identities with tailored protection and strategic expertise, we specialize in modern cybersecurity for Microsoft 365 and…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Kaliber Data Securitykaliberdatasecurity.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 4 contacts → |
“Kaliber helps companies Improve their cyber posture, reduce risk and improve AI security awareness.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cisomatecisomate.com HQ: Boston, United StatesReported employees: 1-10 | Boston, United States | 1-10 | Exact match | 3 contacts → |
“The expertise of a CISO fully integrated into an end-to-end automated processes technology solution.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Arsenal Cyber Forcearsenalcyberforce.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 2 contacts → |
“At Arsenal we are dedicated to delivering premier cybersecurity solutions, safeguarding our clients' digital landscapes.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Quantumstrikequantumstrike.com HQ: Boston, MA, United StatesReported employees: 201-500 | Boston, MA, United States | 201-500 | Exact match | 1 contacts → |
“A global interdisciplinary analytics-driven and human-focused cybersecurity company which delivers innovative security solutions that ensure companies do what they do best -…” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Santsecsantsec.com HQ: Boston, MA, United StatesReported employees: 1-10 | Boston, MA, United States | 1-10 | Exact match | 1 contacts → |
“Santsec's approach to cybersecurity leverages a blend of real-world experience and cutting-edge technology.” Recorded description excerpt · October 1, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 21 of 43 company matches
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Cyber security companies: dataset insights
October 1, 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
43 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 Boston, so it is reported there. Company counts and contact totals on this page are exact for Boston, over 43 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: October 1, 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 ↗
Cyber security companies by metro in the United States
- Cyber security companies in New York155
- Cyber security companies in Atlanta94
- Cyber security companies in Washington94
- Cyber security companies in Austin91
- Cyber security companies in Miami82
- Cyber security companies in Houston80
- Cyber security companies in Chicago77
- Cyber security companies in Dallas77
- Cyber security companies in San Francisco75
- Cyber security companies in Tampa66
- Cyber security companies in Arlington51
- Cyber security companies in Columbia48
- Cyber security companies in Las Vegas44
- Cyber security companies in San Diego44
- Cyber security companies in Denver43
- Cyber security companies in Los Angeles42
- Cyber security companies in Orlando42
- Cyber security companies in Reston42
- Cyber security companies in Charlotte40
- Cyber security companies in San Antonio40
- Cyber security companies in Baltimore34
- Cyber security companies in Seattle34
- Cyber security companies in Fairfax33
- Cyber security companies in Phoenix33
- Cyber security companies in Huntsville32
- Cyber security companies in Mclean32
- Cyber security companies in Alexandria30
- Cyber security companies in San Jose29
- Cyber security companies in Wilmington29
- Cyber security companies in Plano28
- Cyber security companies in Scottsdale27
- Cyber security companies in Ashburn26
- Cyber security companies in Colorado Springs26
- Cyber security companies in Herndon26
- Cyber security companies in Dover25
Questions about this company list
What does Exact match mean for cyber security companies?
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 cyber security companies did RevenueBase find based in Boston, United States?
The saved snapshot records 43 matching company records, 4,180 tracked contacts and 1,868 verified emails. The public preview displays 21 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: October 1, 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
Cyber security companies by geography
- Cyber security companies based in Buenos Aires, Argentina
- Cyber security companies based in Brisbane, Australia
- Cyber security companies based in Canberra, Australia
- Cyber security companies based in Melbourne, Australia
- Cyber security companies based in Sydney, Australia
- Cyber security companies based in Belo Horizonte, Brazil
- Cyber security companies based in Brasilia, Brazil
- Cyber security companies based in Rio De Janeiro, Brazil
- Cyber security companies based in Sao Paulo, Brazil
- Cyber security companies based in Calgary, Canada
- Cyber security companies based in Montreal, Canada
- Cyber security companies based in Ottawa, Canada
Cite this list
RevenueBase Data Team. Top 21 cyber security companies based in Boston, United States. Snapshot: October 1, 2026. https://revenuebase.ai/companies/cyber-security-companies/united-states/boston.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
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- Cyber security companies based in Buenos Aires, Argentina
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