Company lists · Data refreshed September 2026

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

Name: Information security consulting services based in Arlington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 84 companies tracked

RevenueBase identified 84 information security consulting services headquartered in Arlington, United States as of September 2026 and tracks 1,145 professional contacts across them, including 420 with verified work emails. Across the United States, New York is the largest hub for this category (305 companies); Arlington has 84.

This list covers information security consulting services headquartered in Arlington, 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

84Companies

1,145Contacts tracked

420Verified emails

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

Ranked by team size

Top 25 of 84 information security consulting services based in Arlington, 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	Falconwood, Incorporated	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	201-500	237 contacts →
	Partial evidence “Falconwood is a veteran-owned, woman-owned business management and technology consulting firm headquartered in Arlington, Virginia.” Source: RevenueBase Database · checked Sep 28, 2026
2	Pro-Telligent, LLC	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	201-500	114 contacts →
	Strong evidence “PRO-telligent, LLC, founded in January of is a multi-disciplinary strategic consulting and technology company providing services to Civilian, Defense, and National Security…” Source: RevenueBase Database · checked Sep 28, 2026
3	DTS	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	110 contacts →
	Partial evidence “DTS (Do The Security™) is a Service-Disabled Veteran-Owned Small Business (SDVOSB) and CMMC Level 2 enterprise-wide certified, ISO 27001-certified Managed Security Services…” Source: RevenueBase Database · checked Sep 28, 2026
4	Zermount, INC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	51-200	105 contacts →
	Partial evidence “Zermount, Inc, a Certified SDVOSB, was founded by Terry Butler a proven leader and Cybersecurity/Information Technology (IT) professional with over15 years’ experience supporting…” Source: RevenueBase Database · checked Sep 28, 2026
5	EST Group	Partial evidence	Arlington, TX, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Partial evidence “At EST Group, our motto is The best experience you will ever have with an IT consulting company, which is a pretty bold claim.” Source: RevenueBase Database · checked Sep 28, 2026
6	First Information Technology Services, INC	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	51-200	69 contacts →
	Strong evidence “Designing Information Security Solutions with YOU in Mind.” Source: RevenueBase Database · checked Sep 28, 2026
7	Infolock	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	45 contacts →
	Strong evidence “Founded in 2005, Infolock is the go-to data risk management advisory, consulting, and managed services firm for security conscious organizations.” Source: RevenueBase Database · checked Sep 28, 2026
8	SUN Management	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	33 contacts →
	Indirect evidence “Sun Management is a customer focused cybersecurity & advanced network solutions firm providing products and services that help solve your most difficult IT challenges.” Source: RevenueBase Database · checked Sep 28, 2026
9	Clango, INC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	51-200	32 contacts →
	Partial evidence “As a leading Identity Security and Enterprise Application Services consultancy, we enable organizations across the US to mitigate risks and maximize defenses around core identity…” Source: RevenueBase Database · checked Sep 28, 2026
10	D2 Consulting	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Partial evidence “D2 Consulting provides services to the Federal Government focused in the following three area's We leverage D2 Consulting engineering, operations and governance best practices to…” Source: RevenueBase Database · checked Sep 28, 2026
11	Zeichner Risk Analytics ZRA	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “For over 20 years, Zeichner Risk Analytics (ZRA) has had small business experience in cybersecurity, risk management, program management, strategic planning and law and policy.” Source: RevenueBase Database · checked Sep 28, 2026
12	Hancock & Poole Security INC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Partial evidence “Hancock & Poole Security (HPS) Inc.” Source: RevenueBase Database · checked Sep 28, 2026
13	Dowless & Associates, INC	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	11 contacts →
	Strong evidence “Dowless & Associates was incorporated in Dowless & Associates' competencies include Information and Cyber Security, IT Integration, Organizational Change Management and Integrated…” Source: RevenueBase Database · checked Sep 28, 2026
14	Worldtech Management Solutions, LLC	Indirect evidence	Arlington, TN, United StatesHQ checked Sep 28, 2026	11-50	10 contacts →
	Indirect evidence “Proactively managing your IT provides your company the ability to increase profits while reducing cost.” Source: RevenueBase Database · checked Sep 28, 2026
15	Enzo IT Solutions	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	501-1,000	8 contacts →
	Partial evidence “ENZO IT Solutions,"ENZO", is a leading organization of security, audit, and advisory experts.” Source: RevenueBase Database · checked Sep 28, 2026
16	The Enterprise Security Consultants	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	7 contacts →
	Strong evidence “The Enterprise Security Consultants, LLC (dba TES Consultants) is an 8(a) Woman-Owned Small Business (WOSB) delivering industry leading cybersecurity and information technology…” Source: RevenueBase Database · checked Sep 28, 2026
17	The Reports And Requirements Company, LLC R2c	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	51-200	7 contacts →
	Partial evidence “The Reports and Requirements Company, LLC (R2C) is a wholly owned subsidiary of Buchanan & Edwards providing consulting services in intelligence collection, reporting, and data…” Source: RevenueBase Database · checked Sep 28, 2026
18	Alico Cyber Solutions	Strong evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Strong evidence “Alico Cyber Solutions provides information security serving highly satisfied customers in both the federal and private sectors.” Source: RevenueBase Database · checked Sep 28, 2026
19	Tactibit Technologies	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Tactibit is a small business serving Federal customers, specializing in Cybersecurity, Cloud Services and IT Operations.” Source: RevenueBase Database · checked Sep 28, 2026
20	Neuvik	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Neuvik is a cybersecurity services company organized into cross-discipline offerings focused on integrating assessments and risk management into comprehensive security solutions.” Source: RevenueBase Database · checked Sep 28, 2026
21	Cover6 Solutions	Indirect evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	6 contacts →
	Indirect evidence “Cover6 Solutions is a veteran-owned cybersecurity firm delivering vCISO services, compliance advisory, penetration testing, and workforce development to organizations across the…” Source: RevenueBase Database · checked Sep 28, 2026
22	Cyberblack	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	1-10	6 contacts →
	Partial evidence “Cyberblack is an Arlington, Virginia based consulting firm that specializes in providing commercial, government and personal solutions in the cybersecurity field.” Source: RevenueBase Database · checked Sep 28, 2026
23	TLJ Information Technology Solutions, LLC	Partial evidence	Arlington, VA, United StatesHQ checked Sep 28, 2026	11-50	5 contacts →
	Partial evidence “TLJ Information Technology Solutions focuses on collaboration to customize our broad services to the specific needs of our customers.” Source: RevenueBase Database · checked Sep 28, 2026
24	Curated Cyber	Indirect evidence	Arlington, TX, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Curated Cyber provides fractional vCISO services to help businesses navigate cybersecurity with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
25	Prydetech	Indirect evidence	Arlington, TX, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “Can your cybersecurity really be the make or break of your company?” 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 84 information security consulting services based in Arlington, United States

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

As of Sep 28, 2026

36.7%Verified-email coverage

13.6Average 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

Email recency for this list is measured across the whole United States list rather than for Arlington, so it is reported there. Company counts and contact totals on this page are exact for Arlington, over 84 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 Arlington, 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 Arlington 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, 420 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 Arlington, United States?

RevenueBase identified 84 information security consulting services headquartered in Arlington, 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?

Falconwood, Incorporated, headquartered in Arlington, 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). Arlington has 84.

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 420 verified decision-maker contacts tracked across these 84 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.