Company lists · Data refreshed September 2026

Top 25 Information security consulting services based in Boston, United States

Name: Information security consulting 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 86 companies tracked

RevenueBase identified 86 information security consulting services headquartered in Boston, United States as of September 2026 and tracks 839 professional contacts across them, including 306 with verified work emails. Across the United States, New York is the largest hub for this category (305 companies); Boston has 86.

This list covers information security consulting services headquartered in Boston, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

86Companies

839Contacts tracked

306Verified emails

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The 25 largest information security consulting services based in Boston, United States

Ranked by team size

Top 25 of 86 information security consulting services based in Boston, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to information security consulting services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	IANS	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	327 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
2	Maitsys	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	201-500	82 contacts →
	Partial evidence “Maitsys is a dynamic IT consulting company with a global presence, specializing in digital transformation, cloud solutions, SAP migration/support and cybersecurity.” Source: RevenueBase Database · checked Sep 28, 2026
3	EIQ Networks	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	57 contacts →
	Partial evidence “EiQ, a pioneer in hybrid security as a service, is transforming how mid-market organizations build enterprise-class security programs.” Source: RevenueBase Database · checked Sep 28, 2026
4	IUVO	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Strong evidence “iuvo is a strategic IT consulting partner helping organizations turn technology into a driver of business growth, operational efficiency, security, and long-term transformation.” Source: RevenueBase Database · checked Sep 28, 2026
5	Colossus Technologies Group	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	18 contacts →
	Strong evidence “At Colossus Technologies Group, we provide top-tier cybersecurity and digital trust staffing, IT consulting, and project management solutions, including privacy, security, and GRC…” Source: RevenueBase Database · checked Sep 28, 2026
6	BHD INC	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “Business owners know that information technology is the foundation that enables small businesses to stay competitive.” Source: RevenueBase Database · checked Sep 28, 2026
7	The Charlton Group, INC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	15 contacts →
	Indirect evidence “For over 20 years, The Charlton Group, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
8	Proinf	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	14 contacts →
	Indirect evidence “Proinf is a complete suite of Cybersecurity and Professional Services Provider.” Source: RevenueBase Database · checked Sep 28, 2026
9	EOS Systems	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Eos Systems, a leader in cyber security and technology delivery services, has been helping clients solve complex technology challenges for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
10	247 Group, LC	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	12 contacts →
	Strong evidence “Security advice to Federal Government, small and large businesses - Business development & consulting - DoD related Internet of Things (IoT) consulting - Military program…” Source: RevenueBase Database · checked Sep 28, 2026
11	Vault America	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
12	Pinnacle Security Solutions	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Strong evidence “Physical security consulting firm providing assessments (risk and existing conditions), security road mapping, security system design, project management, commissioning, and…” Source: RevenueBase Database · checked Sep 28, 2026
13	Seralys	Indirect evidence	Boston, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Seralys is a boutique cybersecurity firm founded in 2012.” Source: RevenueBase Database · checked Sep 28, 2026
14	Evans Brothers Consulting LLC	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “No one knows Greater Boston better than the Evans Brothers.” Source: RevenueBase Database · checked Sep 28, 2026
15	Hybridvalley	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	51-200	4 contacts →
	Strong evidence “HybridValley is your technology consulting partner in all areas of information technology.” Source: RevenueBase Database · checked Sep 28, 2026
16	Buckley Technology Group, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Since its inception in Buckley Technology Group (BTG) has been a leading provider of financial industry solutions - offering superior consulting, implementation, and support…” Source: RevenueBase Database · checked Sep 28, 2026
17	Avixia	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “Provide technology consulting services to help companies design, execute and deliver the latest technology solutions.” Source: RevenueBase Database · checked Sep 28, 2026
18	Salt Cybersecurity	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
19	Spherium Consulting Group	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Empowering organizations to secure their cloud, data, and identities with tailored protection and strategic expertise, we specialize in modern cybersecurity for Microsoft 365 and…” Source: RevenueBase Database · checked Sep 28, 2026
20	Kaliber Data Security	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “Kaliber helps companies Improve their cyber posture, reduce risk and improve AI security awareness.” Source: RevenueBase Database · checked Sep 28, 2026
21	Adviseup Consulting LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “AdviseUp Consulting LLC is an audit, risk, and compliance consulting firm that goes beyond checking the compliance box.” Source: RevenueBase Database · checked Sep 28, 2026
22	Matthews & Matthews, LLC	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Strong evidence “The founders and team at Matthews & Matthews, LLC provides trusted and confidential investigative, executive security, and management consulting expertise to Companies and…” Source: RevenueBase Database · checked Sep 28, 2026
23	Arsenal Cyber Force	Indirect evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “At Arsenal we are dedicated to delivering premier cybersecurity solutions, safeguarding our clients' digital landscapes.” Source: RevenueBase Database · checked Sep 28, 2026
24	Aella Consulting Group, INC	Strong evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Strong evidence “Aella Consulting Group provides total end-to-end security consulting services for End-users, Systems Integrators, Vendors and Investors.” Source: RevenueBase Database · checked Sep 28, 2026
25	IT Solutions Provider, LLC	Partial evidence	Boston, MA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “IT Solutions Provider, llc is a full-service IT consulting company based in Boston, MA.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: information security consulting services. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names information security consulting services.
Partial evidence: Its own public description names part of information security consulting services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name information security consulting services. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 86 information security consulting services based in Boston, United States

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Information security consulting services based in Boston, United States at a glance

As of Sep 28, 2026

36.5%Verified-email coverage

9.8Average 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

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 86 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among information security consulting services, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Boston, United States whose own description of what they do matches “information security consulting services”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names information security consulting services), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among information security consulting services, and records with no verified work email. Companies headquartered outside Boston are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 306 across the full list. 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.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Information security consulting services by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names information security consulting services, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many information security consulting services are there based in Boston, United States?

RevenueBase identified 86 information security consulting services headquartered in Boston, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

IANS, headquartered in Boston, tops this list with the largest team on record.

Which city in the United States has the most information security consulting services?

New York leads the United States with 305 headquartered companies, followed by Houston (200) and Atlanta (185). Boston has 86.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 306 verified decision-maker contacts tracked across these 86 companies.

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 Smart Search, 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.