Company lists · Data refreshed September 2026

Top 25 Cybersecurity companies for professional services based in Boston, United States

Name: Cybersecurity companies for professional services based in Boston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 70 companies tracked

RevenueBase identified 70 company matches for cybersecurity companies for professional services associated with Boston, United States as of September 2026 and tracks 3,913 professional contacts across them, including 1,880 with verified work emails. Across the United States, New York is the largest hub for this category (311 companies); Boston has 70.

This list covers company matches for cybersecurity companies for professional services 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

70Companies

3,913Contacts tracked

1,880Verified emails

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The 25 largest cybersecurity companies for professional services based in Boston, United States

Ranked by team size

Top 25 of 70 company matches for cybersecurity companies for professional services 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Rapid7	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1,001-5,000	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 · Sep 28, 2026 · View company records in RevenueBase
2	IANS	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	327 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
3	Cynet Security	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	201-500	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 · Sep 28, 2026 · View company records in RevenueBase
4	EIQ Networks	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	57 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
5	CORK	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	34 contacts →
	Exact match “Cork Cyber delivers cyber risk intelligence and resilience for MSPs.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Abusix, INC	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	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 · Sep 28, 2026 · View company records in RevenueBase
7	Tech Superpowers, An IT Solutions Company	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	21 contacts →
	Exact match “We help our clients do great things.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Colossus Technologies Group	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	18 contacts →
	Exact match “At Colossus Technologies Group, we provide top-tier cybersecurity and digital trust staffing, IT consulting, and project management solutions, including privacy, security, and GRC…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Acelium	Exact match	Boston, United StatesHQ recorded Sep 28, 2026	51-200	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 · Sep 28, 2026 · View company records in RevenueBase
10	Proinf	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	14 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
11	EOS Systems	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	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 · Sep 28, 2026 · View company records in RevenueBase
12	Full Armor Corporation	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Full Armor Corporation is a leader in Cyber Security and in System & Group Policy Management.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	247 Group, LC	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	12 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
14	Tailwind IT	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	8 contacts →
	Exact match “At Tailwind IT, we accelerate growth through secure, human-driven solutions and services for global mid-sized companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Vault America	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	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 · Sep 28, 2026 · View company records in RevenueBase
16	FYEO	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	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 · Sep 28, 2026 · View company records in RevenueBase
17	Seralys	Exact match	Boston, United StatesHQ recorded Sep 28, 2026	1-10	5 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
18	Hybridvalley	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	51-200	4 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
19	Buckley Technology Group, LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	4 contacts →
	Exact match “Since its inception in Buckley Technology Group (BTG) has been a leading provider of financial industry solutions - offering superior consulting, implementation, and support…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Infersight LLC	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	4 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
21	Salt Cybersecurity	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	11-50	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 · Sep 28, 2026 · View company records in RevenueBase
22	Spherium Consulting Group	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	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 · Sep 28, 2026 · View company records in RevenueBase
23	Kaliber Data Security	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	4 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
24	Reverb Advisors	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	3 contacts →
	Exact match “Reverb Advisors is an advisory firm that helps cyber security and data science companies achieve their entrepreneurial goals.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Cloudrabia	Exact match	Boston, MA, United StatesHQ recorded Sep 28, 2026	1-10	3 contacts →
	Exact match “We enable companies to grow by providing technical services in cybersecurity, cloud computing, and software development.” Recorded in the RevenueBase company graph · Sep 28, 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 “cybersecurity companies for professional services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 70 cybersecurity companies for professional services based in Boston, United States

See the full list, filter by size, metro and specialty, and access 1,880 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Cybersecurity companies for professional services based in Boston, United States at a glance

As of Sep 28, 2026

48.0%Verified-email coverage

55.9Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 70 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 companies for professional services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every displayed company carries at least one verified work email. RevenueBase tracks 1,880 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 companies for professional services 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 companies for professional services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many cybersecurity companies for professional services are there based in Boston, United States?

RevenueBase identified 70 company matches for cybersecurity companies for professional services 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?

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 cybersecurity companies for professional services?

New York leads the United States with 311 company records, followed by Houston (167) and Washington (161). Boston has 70.

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 1,880 professional contacts with verified work emails tracked across these 70 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.