Company lists · Data refreshed September 2026

Top 22 Professional cybersecurity services based in Alexandria, United States

Name: Professional cybersecurity services based in Alexandria, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 42 companies tracked

RevenueBase identified 42 company matches for professional cybersecurity services associated with Alexandria, United States as of September 2026 and tracks 435 professional contacts across them, including 112 with verified work emails. Across the United States, New York is the largest hub for this category (208 companies); Alexandria has 42.

This list covers company matches for professional cybersecurity services associated with Alexandria, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 21, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Sep 21, 2026 How this list was built

42Companies

435Contacts tracked

112Verified emails

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The 22 largest professional cybersecurity services based in Alexandria, United States

Ranked by team size

Top 22 of 42 company matches for professional cybersecurity services based in Alexandria, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 21, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Strategic Security	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	n/a	113 contacts →
	Exact match “Strategic Security is an IT Security consulting firm that provides in-depth technical security assessments of your network, web application, and regulatory compliance gap analysis…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
2	Onezero Solutions	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	201-500	68 contacts →
	Exact match “OneZero Solutions is an 8(a), Service-Disabled Veteran-Owned Small Business (SDVOSB) that is problem-solving and solutions-oriented.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
3	Arrowpoint Corporation	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	51-200	47 contacts →
	Exact match “Arrowpoint, a MorphWorks company, has delivered premiere information technology and consulting services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
4	Securicon, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	27 contacts →
	Exact match “Securicon provides expert consulting for application, system and network security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
5	Focus Data Solutions	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	26 contacts →
	Exact match “Focus Data Solutions is Your Partner for Tomorrow’s IT.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
6	Whitehawk INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	26 contacts →
	Exact match “At WhiteHawk, we streamline cybersecurity decision-making through a three-step approach: 1.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
7	Gray Tier Technologies, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	9 contacts →
	Exact match “Gray Tier Technolgies is a privately held company providing full cyclic cybersecurity services and products.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
8	Secureninja Cybersecurity Training & Services	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	9 contacts →
	Exact match “SecureNinja provides highly specialized cybersecurity training and consulting services, as well as video production services targeted to the cybersecurity community.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
9	Pendulum	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	9 contacts →
	Exact match “Pendulum is transforming cyber defense and information security.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
10	Patchadvisor, INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “PatchAdvisor is a complete IT security firm focused on providing world class IT security services to our clients.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
11	Matrix Msp, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	7 contacts →
	Exact match “Providing IT Managed Security Services, Support & Consulting to businesses, associations and home office users too.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
12	Tech Leader Solutions, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	7 contacts →
	Exact match “HUBZone Certified, Tech Leader Solutions, LLC provides Cybersecurity and IT Consulting services to CIOs and CTOs, supporting a wide range of IT programs through strategy…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
13	Aptnexus	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	5 contacts →
	Exact match “Founded in 2012, APTNEXUS is a premier provider of IT Services with a specialization in cybersecurity governance, risk, and compliance solutions for both information and…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
14	SWG Solutions	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	4 contacts →
	Exact match “At SWG, we provide comprehensive, cost-effective professional services support and expertise in system engineering solutions for our customer’s complex mission and enterprise IT…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
15	Cerium Technology, INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	3 contacts →
	Exact match “Cerium Technology Services was established in 2009 to provide professional and affordable IT services.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
16	Data Defense Solutions	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “Security Staff Augmentation DDS can help to augment your security staff as you build and grow your internal security team.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
17	Lc&j Security Solutions LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “LC & J Security Solutions is a proudly certified women-owned cybersecurity firm specializing in securing identities, critical data, and digital assets.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
18	Intelligent Data INC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	11-50	2 contacts →
	Exact match “We are a cybersecurity professional services company that implements security solutions for Federal, State, Local, Commercial, Education, and SMB entities.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
19	Secure Consulting Solutions LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “Secure Solutions DC is a forward-thinking cybersecurity firm specializing in network and application penetration testing, securing networks in compliance with DFARS/NIST 800-53…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
20	Securible, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	2 contacts →
	Exact match “Securible, LLC is an information security service provider offering training, implementation and support to organizations of all sizes.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
21	Petreski & Company, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match “Petreski & Co.” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase
22	Cyberrisq, LLC	Exact match	Alexandria, VA, United StatesHQ recorded Sep 21, 2026	1-10	1 contacts →
	Exact match “CyberRisQ, LLC is a premier cloud and cybersecurity consulting firm, founded by industry leaders with decades of collective experience across diverse sectors including Finance…” Recorded in the RevenueBase company graph · Sep 21, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “professional cybersecurity services”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 42 professional cybersecurity services based in Alexandria, United States

See the full list, filter by size, metro and specialty, and access 112 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Professional cybersecurity services based in Alexandria, United States at a glance

As of Sep 21, 2026

25.7%Verified-email coverage

10.4Average contacts per company

1-10Median size (employees)

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

Email recency for this list is measured across the whole United States list rather than for Alexandria, so it is reported there. Company counts and contact totals on this page are exact for Alexandria, over 42 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Alexandria, United States whose business descriptions match “professional cybersecurity services” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 112 professional contacts with verified work emails across the full matched dataset. 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.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Professional cybersecurity services by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “professional cybersecurity services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many professional cybersecurity services are there based in Alexandria, United States?

RevenueBase identified 42 company matches for professional cybersecurity services associated with Alexandria, United States as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Strategic Security tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most professional cybersecurity services?

New York leads the United States with 208 company records, followed by Atlanta (125) and Austin (122). Alexandria has 42.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 112 professional contacts with verified work emails tracked across these 42 companies; direct dials are available where recorded.

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 SmartSearch, 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.