Company lists · Data refreshed September 2026

Top 25 Cybersecurity system integrators based in Baltimore, United States

Name: Cybersecurity system integrators based in Baltimore, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 46 companies tracked

RevenueBase identified 46 cybersecurity system integrators headquartered in Baltimore, United States as of September 2026 and tracks 657 professional contacts across them, including 308 with verified work emails. Across the United States, New York is the largest hub for this category (193 companies); Baltimore has 46.

This list covers cybersecurity system integrators headquartered in Baltimore, 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

46Companies

657Contacts tracked

308Verified emails

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The 25 largest cybersecurity system integrators based in Baltimore, United States

Ranked by team size

Top 25 of 46 cybersecurity system integrators based in Baltimore, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity system integrators: 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	Rsc2, INC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	94 contacts →
	Indirect evidence “RSC2: A Leader in Defense and Federal Sector Solutions At RSC2, we specialize in providing innovative solutions to the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
2	Klik Solutions Managed It, Cybersecurity, Data&tech Solutions Partner Baltimore Austin Miami	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	79 contacts →
	Indirect evidence “Technology should push your business forward, not create friction, risk, or uncertainty.” Source: RevenueBase Database · checked Sep 28, 2026
3	Reliasource	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “ReliaSource is a Technology-Centric Business Solutions Company specializing in the following:* System Engineering and Integration,* Relocation, Rollout and Logistic Services,*…” Source: RevenueBase Database · checked Sep 28, 2026
4	CHESA	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	58 contacts →
	Partial evidence “CHESA offers an engaged and embedded approach to analyzing, engineering, implementing and maintaining highly advanced media technology systems, specializing in M&E workflow…” Source: RevenueBase Database · checked Sep 28, 2026
5	Sciens LS Systems Division	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	56 contacts →
	Partial evidence “As an industry leader in safety and security systems design, implementation, and maintenance, we bring the best in the business together for you.” Source: RevenueBase Database · checked Sep 28, 2026
6	Independent Security Evaluators	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Companies come to ISE when they need to find and fix their security vulnerabilities and prove their tech is secure.” Source: RevenueBase Database · checked Sep 28, 2026
7	Intelect Corporation	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	30 contacts →
	Partial evidence “Intelect Corporation is a leading systems integration company providing technology for infrastructure since 1995.” Source: RevenueBase Database · checked Sep 28, 2026
8	8-Bit INT	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	51-200	24 contacts →
	Indirect evidence “Cyber security consulting firm providing consulting services to government and industry partners.” Source: RevenueBase Database · checked Sep 28, 2026
9	Visioneerit	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	22 contacts →
	Indirect evidence “At VisioneerIT, we transform how organizations harness AI, automate operations, and protect their future.” Source: RevenueBase Database · checked Sep 28, 2026
10	Femdel LLC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Indirect evidence “Femdel has become an innovative leader in the information technology industry.” Source: RevenueBase Database · checked Sep 28, 2026
11	Steeltoad	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “A Cybersecurity Firm Focused on Mitigating Risk, Increasing Resilience, & Locking Down Organizational Data, while ensuring Regulatory Compliance.” Source: RevenueBase Database · checked Sep 28, 2026
12	AMS Technologies, LLC	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	16 contacts →
	Partial evidence “AMS Technologies is a Minority Owned, SBA HUBZone approved, SDB cybersecurity firm with a powerful focus on network/software modeling, design & engineering.” Source: RevenueBase Database · checked Sep 28, 2026
13	Davis Unlimited Information Technologies, Inc. Duit	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	15 contacts →
	Indirect evidence “Founded in 2010 by a United States Navy Veteran and a federal government employee, DUIT is a woman owned and minority owned information technology company that has quickly emerged…” Source: RevenueBase Database · checked Sep 28, 2026
14	Agile Care Enterprises, LLC	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	13 contacts →
	Partial evidence “Agile Care Enterprises Technologies LLC is a premiere veteran's owned IT services and cybersecurity consultancy serving organizations committed to preserving our past, securing…” Source: RevenueBase Database · checked Sep 28, 2026
15	Triune Solutions, LLC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Indirect evidence “Since 2011, Triune Solutions LLC has provided Network Engineering and Network Security Services for enterprise network infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
16	Enterprise Solutions Realized, INC	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “ESR ESR integrates, designs, programs, and deploys software-centric, mission-critical systems.” Source: RevenueBase Database · checked Sep 28, 2026
17	Cybersecurity Insiders	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “Cybersecurity Insiders is the trusted source for data-driven cybersecurity insights.” Source: RevenueBase Database · checked Sep 28, 2026
18	S3 Integration, L.L.C	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “At S3 Integration, L.L.C, we are proud to offer the power and experience of a large company with the agility, responsiveness, and personal attention of a small company.” Source: RevenueBase Database · checked Sep 28, 2026
19	Metro Tech Group	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “We provide comprehensive cybersecurity services designed to protect your business from the complex and evolving digital threat landscape.” Source: RevenueBase Database · checked Sep 28, 2026
20	Tcecure, LLC	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Partial evidence “TCecure is a Maryland-based MBE/DBE/SBE cybersecurity and intelligence company, providing security architecture, engineering, assessment, training, and consulting services to…” Source: RevenueBase Database · checked Sep 28, 2026
21	Caton Communications Group	Strong evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Strong evidence “Caton Communications Group is a “state of the art,” System Integrator.” Source: RevenueBase Database · checked Sep 28, 2026
22	American Blackbird	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “American Blackbird is a group of highly experienced senior electronic security professionals.” Source: RevenueBase Database · checked Sep 28, 2026
23	Rush IT LLC	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “RushIT LLC vision is to secure the federal state and local governments In addition to offering Cyber Security services to Government's clients.” Source: RevenueBase Database · checked Sep 28, 2026
24	Environments	Partial evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Partial evidence “Environments is an expert-led team delivering integrated building performance systems, starting with the power infrastructure that makes everything else possible, from advanced…” Source: RevenueBase Database · checked Sep 28, 2026
25	Secureside	Indirect evidence	Baltimore, MD, United StatesHQ checked Sep 28, 2026	1-10	1 contacts →
	Indirect evidence “Secureside specializes in delivering first-class security to SMBs.” 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: cybersecurity system integrators. 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 cybersecurity system integrators.
Partial evidence: Its own public description names part of cybersecurity system integrators, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity system integrators. 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 46 cybersecurity system integrators based in Baltimore, United States

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Cybersecurity system integrators based in Baltimore, United States at a glance

As of Sep 28, 2026

46.9%Verified-email coverage

14.3Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Baltimore, so it is reported there. Company counts and contact totals on this page are exact for Baltimore, over 46 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 cybersecurity system integrators, 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 Baltimore, United States whose own description of what they do matches “cybersecurity system integrators”. 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 cybersecurity system integrators), 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 cybersecurity system integrators, and records with no verified work email. Companies headquartered outside Baltimore 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, 308 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.

Cybersecurity system integrators 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 cybersecurity system integrators, 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 cybersecurity system integrators are there based in Baltimore, United States?

RevenueBase identified 46 cybersecurity system integrators headquartered in Baltimore, 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?

Rsc2, INC, headquartered in Baltimore, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity system integrators?

New York leads the United States with 193 headquartered companies, followed by Houston (142) and Washington (135). Baltimore has 46.

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 308 verified decision-maker contacts tracked across these 46 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.