Company lists · Data refreshed September 2026

Top 25 Cybersecurity and physical security firms based in Boston, United States

RevenueBase identified 58 company matches for cybersecurity and physical security firms associated with Boston, United States as of September 2026 and tracks 1,093 professional contacts across them, including 535 with verified work emails. Across the United States, New York is the largest hub for this category (261 companies); Boston has 58.

This list covers company matches for cybersecurity and physical security firms 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 September 28, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 28, 2026 How this list was built
58Companies
1,093Contacts tracked
535Verified emails
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The 25 largest cybersecurity and physical security firms based in Boston, United States

Ranked by team size
Top 25 of 58 company matches for cybersecurity and physical security firms based in Boston, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202651-200327 contacts →

Exact match

“For the security practitioner caught between rapidly evolving threats and demanding executives, IANS Research is a clear-headed resource for decision-making and articulating risk.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2Exact matchBoston, MA, United StatesHQ recorded Sep 28, 2026201-500309 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 · Sep 28, 2026 · View company records in RevenueBase
3Exact matchBoston, MA, United StatesHQ recorded Sep 28, 2026201-50091 contacts →

Exact match

“Windwalker is an award-winning small business with over 25 years of experience delivering cutting-edge security, IT, and training solutions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202651-20057 contacts →

Exact match

“EiQ, a pioneer in hybrid security as a service, is transforming how mid-market organizations build enterprise-class security programs.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-5031 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 · Sep 28, 2026 · View company records in RevenueBase
6Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202651-20022 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 · Sep 28, 2026 · View company records in RevenueBase
7Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-5022 contacts →

Exact match

“Freeze is the premium cybersecurity and privacy solution trusted by leading organizations to mitigate risks such as social engineering, phishing, financial fraud, hacks, attacks…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8Exact matchBoston, United StatesHQ recorded Sep 28, 202651-20014 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 · Sep 28, 2026 · View company records in RevenueBase
9Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202651-20014 contacts →

Exact match

“Proinf is a complete suite of Cybersecurity and Professional Services Provider.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-5013 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 · Sep 28, 2026 · View company records in RevenueBase
11Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-1012 contacts →

Exact match

“Security advice to Federal Government, small and large businesses - Business development & consulting - DoD related Internet of Things (IoT) consulting - Military program…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-109 contacts →

Exact match

“As a full-service IT firm in Boston we help businesses make smart technology decisions.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-107 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 · Sep 28, 2026 · View company records in RevenueBase
14Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-506 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 · Sep 28, 2026 · View company records in RevenueBase
15Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-106 contacts →

Exact match

“Physical security consulting firm providing assessments (risk and existing conditions), security road mapping, security system design, project management, commissioning, and…”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16Exact matchBoston, United StatesHQ recorded Sep 28, 20261-105 contacts →

Exact match

“Seralys is a boutique cybersecurity firm founded in 2012.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202651-2004 contacts →

Exact match

“HybridValley is your technology consulting partner in all areas of information technology.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Smart security for your smart devices.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-504 contacts →

Exact match

“InferSight is one of the top trusted cyber security solutions partners in the industry.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Sep 28, 202611-504 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 · Sep 28, 2026 · View company records in RevenueBase
21Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-104 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 · Sep 28, 2026 · View company records in RevenueBase
22Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-104 contacts →

Exact match

“Kaliber helps companies Improve their cyber posture, reduce risk and improve AI security awareness.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23Exact matchBoston, United StatesHQ recorded Sep 28, 20261-103 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 · Sep 28, 2026 · View company records in RevenueBase
24Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-102 contacts →

Exact match

“At Arsenal we are dedicated to delivering premier cybersecurity solutions, safeguarding our clients' digital landscapes.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25Exact matchBoston, MA, United StatesHQ recorded Sep 28, 20261-102 contacts →

Exact match

“Aella Consulting Group provides total end-to-end security consulting services for End-users, Systems Integrators, Vendors and Investors.”

Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase

Showing 25 of 58 cybersecurity and physical security firms based in Boston, United States

See the full list, filter by size, metro and specialty, and access 535 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity and physical security firms based in Boston, United States at a glance

As of Sep 28, 2026
48.9%Verified-email coverage
18.8Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
34
11-50
13
51-200
7
201-500
3
501-1,000
1

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 58 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 “cybersecurity and physical security firms” 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 535 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 28, 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.

Cybersecurity and physical security firms by metro in the United States

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 “cybersecurity and physical security firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity and physical security firms are there based in Boston, United States?

RevenueBase identified 58 company matches for cybersecurity and physical security firms associated with Boston, 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?

IANS 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 cybersecurity and physical security firms?

New York leads the United States with 261 company records, followed by Houston (153) and Miami (141). Boston has 58.

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 535 professional contacts with verified work emails tracked across these 58 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 28, 2026.

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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.