Company lists · Data refreshed September 2026

Top 25 Infrastructure security firms based in Columbia, United States

Name: Infrastructure security firms based in Columbia, 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 infrastructure security firms headquartered in Columbia, United States as of September 2026 and tracks 2,256 professional contacts across them, including 872 with verified work emails. Across the United States, New York is the largest hub for this category (104 companies); Columbia has 46.

This list covers infrastructure security firms headquartered in Columbia, 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

2,256Contacts tracked

872Verified emails

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The 25 largest infrastructure security firms based in Columbia, United States

Ranked by team size

Top 25 of 46 infrastructure security firms based in Columbia, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure security firms: 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	Planned Systems International	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1,001-5,000	611 contacts →
	Indirect evidence “Since 1988, PSI teams have provided our government customers with innovative, cost effective solutions that solve today’s complex challenges, improve operational efficiencies, and…” Source: RevenueBase Database · checked Sep 28, 2026
2	Vc3	Indirect evidence	Columbia, SC, United StatesHQ checked Sep 28, 2026	501-1,000	495 contacts →
	Indirect evidence “VC3 is a managed IT and cybersecurity services provider serving organizations throughout the US and Canada.” Source: RevenueBase Database · checked Sep 28, 2026
3	Sealing Technologies, A Parsons Company	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	119 contacts →
	Indirect evidence “SealingTech, a Parsons Company, rapidly delivers innovative, agile cybersecurity solutions that modernize, protect, and defend the networks and systems of the federal government…” Source: RevenueBase Database · checked Sep 28, 2026
4	Synergy ECP	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	201-500	106 contacts →
	Indirect evidence “Welcome to Synergy ECP, the most trusted partner in navigating the complex landscape of cybersecurity and digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
5	RED Alpha	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	75 contacts →
	Indirect evidence “We are always striving to "Bring Digital Transformation to the Fight".” Source: RevenueBase Database · checked Sep 28, 2026
6	Sourcefire, Part Of Cisco	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	501-1,000	63 contacts →
	Indirect evidence “Sourcefire, Inc.(Nasdaq:FIRE), a world leader in intelligent cybersecurity solutions, is transforming the way global mid- to large-size organizations and government agencies…” Source: RevenueBase Database · checked Sep 28, 2026
7	Applied Network Solutions, INC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	57 contacts →
	Indirect evidence “We operate at the intersection of network engineering and cybersecurity, providing secure, scalable, and high-performing architectures for our customers.” Source: RevenueBase Database · checked Sep 28, 2026
8	Envieta Systems LLC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	11-50	57 contacts →
	Indirect evidence “Envieta’s mission is to secure our clients' systems through hardware, software and cryptographic expertise.” Source: RevenueBase Database · checked Sep 28, 2026
9	Cyberpoint International	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	34 contacts →
	Indirect evidence “CyberPoint is dedicated to advancing the discipline of cybersecurity through imagination, technical excellence, and an unparalleled passion for our work.” Source: RevenueBase Database · checked Sep 28, 2026
10	SRC Technologies INC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	30 contacts →
	Indirect evidence “SRC Technologies, INC provides information technology (IT) consultation services to government agencies and corporations alike, specializing in secure computing services.” Source: RevenueBase Database · checked Sep 28, 2026
11	Sixmap, INC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “SixMap bridges the gap between what cyber defenders are protecting and what adversaries uncover through reconnaissance.” Source: RevenueBase Database · checked Sep 28, 2026
12	Enterprise Security Solutions LLC	Strong evidence	Columbia, United StatesHQ checked Sep 28, 2026	51-200	24 contacts →
	Strong evidence “Enterprise Security Solutions helps data center, utility, enterprise, and government clients protect facilities, infrastructure, and personnel.” Source: RevenueBase Database · checked Sep 28, 2026
13	Ncyber	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	19 contacts →
	Partial evidence “Ncyber ("en-cyber") is a data-driven information security company based in Columbia MD.” Source: RevenueBase Database · checked Sep 28, 2026
14	Secure Innovations, LLC	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	13 contacts →
	Indirect evidence “Our highly-skilled professionals have an average of 20+ years of experience working with, and in, the public sector.” Source: RevenueBase Database · checked Sep 28, 2026
15	White Cliffs Consulting, LLC	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	9 contacts →
	Partial evidence “White Cliffs Consulting is a small cyber intelligence and security firm providing high-end consulting and technical services in network analysis, software development and…” Source: RevenueBase Database · checked Sep 28, 2026
16	Camelot Secure	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	51-200	8 contacts →
	Indirect evidence “Our Secure360 platform is a holistic redefinition of what world-class cybersecurity strategies can be.” Source: RevenueBase Database · checked Sep 28, 2026
17	Shield 7 Consulting	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	11-50	8 contacts →
	Indirect evidence “Shield 7 operates as a Veteran Owned consulting firm and VAR based in Maryland.” Source: RevenueBase Database · checked Sep 28, 2026
18	Tactical Network Solutions	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1-10	5 contacts →
	Indirect evidence “Are you concerned about risky, vulnerable embedded firmware in IoT devices, connected medical devices, automotive ECUs and industrial control systems?” Source: RevenueBase Database · checked Sep 28, 2026
19	Captivator Technologies	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	11-50	4 contacts →
	Indirect evidence “Captivator TECHNOLOGIES is a growing digital solutions provider specializing in delivering innovative and efficient solutions tailored to the needs of businesses and individuals.” Source: RevenueBase Database · checked Sep 28, 2026
20	Trimia, INC	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “We have over 30 years of real world experience in identifying and developing innovative technologies and solutions to help meet our customers Data and Cyber Security challenges.” Source: RevenueBase Database · checked Sep 28, 2026
21	Coefficient Technologies LLC DBA Surveillent Cyber	Partial evidence	Columbia, SC, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Coefficient Technologies provides the most up-to-date cyber security solutions, strategies, and IT services to help companies defend themselves from known and unknown APTs and…” Source: RevenueBase Database · checked Sep 28, 2026
22	Greysys LLC	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1-10	3 contacts →
	Partial evidence “Greysys LLC is a small information security focused research and development company based in Maryland.” Source: RevenueBase Database · checked Sep 28, 2026
23	Interceptor Cyberops	Indirect evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	11-50	2 contacts →
	Indirect evidence “Today, data has become the world’s most valuable (and vulnerable) resource.” Source: RevenueBase Database · checked Sep 28, 2026
24	Ramparts Security	Partial evidence	Columbia, MD, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “The Ramparts team has over 3 decades of experience performing threat analysis for critical infrastructure and defense systems, and over a decade of experience leading adversarial…” Source: RevenueBase Database · checked Sep 28, 2026
25	Panoptcy Security	Partial evidence	Columbia, SC, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Partial evidence “Panoptcy Security is a cybersecurity firm that combines high-level talent, advanced tools, interdisciplinary models, and data science to advance cyber resiliency.” 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: infrastructure security firms. 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 infrastructure security firms.
Partial evidence: Its own public description names part of infrastructure security firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure security firms. 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 infrastructure security firms based in Columbia, United States

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Infrastructure security firms based in Columbia, United States at a glance

As of Sep 28, 2026

38.7%Verified-email coverage

49.0Average contacts per company

11-50Median 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

Email recency for this list is measured across the whole United States list rather than for Columbia, so it is reported there. Company counts and contact totals on this page are exact for Columbia, 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 infrastructure security firms, 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 Columbia, United States whose own description of what they do matches “infrastructure security firms”. 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 infrastructure security firms), 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 infrastructure security firms, and records with no verified work email. Companies headquartered outside Columbia 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, 872 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.

Infrastructure security firms 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 infrastructure security firms, 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 infrastructure security firms are there based in Columbia, United States?

RevenueBase identified 46 infrastructure security firms headquartered in Columbia, 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?

Planned Systems International, headquartered in Columbia, tops this list with the largest team on record.

Which city in the United States has the most infrastructure security firms?

New York leads the United States with 104 headquartered companies, followed by Washington (80) and Houston (77). Columbia 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 872 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.