Company lists · Data refreshed September 2026
Top 14 Security intelligence companies based in Baltimore, United States
RevenueBase identified 33 security intelligence companies headquartered in Baltimore, United States as of September 2026 and tracks 1,105 professional contacts across them, including 469 with verified work emails. New York is the largest hub.
This list covers security intelligence companies 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 21, 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.
The 14 largest security intelligence companies based in Baltimore, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 904 contacts → | ||||
Indirect evidence “ZeroFox is the solution to discover, validate, and disrupt external cyber threats before they harm revenue or reputation.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 33 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 24 contacts → | ||||
Partial evidence “Cyber security consulting firm providing consulting services to government and industry partners.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 22 contacts → | ||||
Indirect evidence “At VisioneerIT, we transform how organizations harness AI, automate operations, and protect their future.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 16 contacts → | ||||
Indirect evidence “A Cybersecurity Firm Focused on Mitigating Risk, Increasing Resilience, & Locking Down Organizational Data, while ensuring Regulatory Compliance.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 16 contacts → | ||||
Indirect 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 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 6 contacts → | ||||
Partial evidence “Founded in 2013, Pabst Enterprises is a Baltimore, Maryland based company specializing in security and investigative operations and services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 6 contacts → | ||||
Indirect evidence “We provide comprehensive cybersecurity services designed to protect your business from the complex and evolving digital threat landscape.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 6 contacts → | ||||
Strong 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 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 3 contacts → | ||||
Indirect evidence “Maddrix is a professional services and technology company who's mission is to help the U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 2 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 contacts → | ||||
Indirect evidence “Celestial Innovative Solutions, LLC (CIS) is an agile, small business that delivers comprehensive and customized professional management and specialist support services, IT…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1 contacts → | ||||
Partial evidence “Secureside specializes in delivering first-class security to SMBs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 1 contacts → | ||||
Partial evidence “At Nomadus, we stand at the forefront of defense consulting, powered by nearly two decades of unparalleled experience forged in the demanding arenas of signals intelligence…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: security intelligence companies. 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 security intelligence companies.
- Partial evidence
- Its own public description names part of security intelligence companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name security intelligence companies. 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 14 of 33 security intelligence companies based in Baltimore, United States
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Security intelligence companies based in Baltimore, United States at a glance
As of Sep 21, 2026Companies by employee count
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 33 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 security intelligence companies, 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 “security intelligence companies”. 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 security intelligence companies), 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 security intelligence companies, 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, 469 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 21, 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.
Security intelligence companies by metro in the United States
- Security intelligence companies in New York175
- Security intelligence companies in Washington151
- Security intelligence companies in Atlanta93
- Security intelligence companies in Houston92
- Security intelligence companies in Austin83
- Security intelligence companies in Dallas82
- Security intelligence companies in Miami82
- Security intelligence companies in Chicago71
- Security intelligence companies in Los Angeles70
- Security intelligence companies in Tampa66
- Security intelligence companies in Arlington64
- Security intelligence companies in San Francisco63
- Security intelligence companies in Columbia57
- Security intelligence companies in Alexandria55
- Security intelligence companies in Reston49
- Security intelligence companies in San Diego47
- Security intelligence companies in Charlotte46
- Security intelligence companies in Denver46
- Security intelligence companies in Mclean45
- Security intelligence companies in Orlando44
- Security intelligence companies in San Antonio42
- Security intelligence companies in Herndon41
- Security intelligence companies in Las Vegas41
- Security intelligence companies in Boston39
- Security intelligence companies in Ashburn37
- Security intelligence companies in Phoenix36
- Security intelligence companies in Seattle36
- Security intelligence companies in Raleigh35
- Security intelligence companies in Huntsville34
- Security intelligence companies in Baltimore33
- Security intelligence companies in Pittsburgh32
- Security intelligence companies in Colorado Springs31
- Security intelligence companies in Fairfax29
- Security intelligence companies in Sheridan28
- Security intelligence companies in Wilmington27
- Security intelligence companies in Plano25
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 security intelligence companies, 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 security intelligence companies are there based in Baltimore, United States?
RevenueBase identified 33 security intelligence companies 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?
Zerofox, headquartered in Baltimore, tops this list with the largest team on record.
Which city has the most security intelligence companies?
New York leads with 175 headquartered companies, followed by Washington (151) and Atlanta (93).
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 469 verified decision-maker contacts tracked across these 33 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 21, 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.
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