Company lists · Data refreshed September 2026
Top 25 Critical infrastructure security consulting companies based in Arlington, United States
RevenueBase identified 81 critical infrastructure security consulting companies headquartered in Arlington, United States as of September 2026 and tracks 1,101 professional contacts across them, including 492 with verified work emails. Across the United States, Washington is the largest hub for this category (193 companies); Arlington has 81.
This list covers critical infrastructure security consulting companies 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 27, 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 25 largest critical infrastructure security consulting companies based in Arlington, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 178 contacts → | ||||
Partial evidence “Guidehouse is a leading global provider of consulting services to the public sector and commercial markets, with broad capabilities in management, technology, and risk consulting.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 167 contacts → | ||||
Strong evidence “We believe resilience depends on minimizing and managing the increasing risks facing the critical infrastructure and industrial systems that support our country, companies, and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 56 contacts → | ||||
Indirect evidence “At MASY, we are committed to excellence in solving your complex challenges and supporting your navigation through a rapidly evolving geopolitical landscape.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 49 contacts → | ||||
Indirect evidence “Our purpose is simple: we prevent bad things from happening to good people.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 47 contacts → | ||||
Indirect evidence “System Planning Corporation (SPC)’s success supporting U.S.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 40 contacts → | ||||
Indirect evidence “Toffler Associates works with federal and commercial clients to develop Future Proof® strategies and action plans for transforming workforces, understanding and integrating…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 30 contacts → | ||||
Indirect evidence “Federal Working Group has had the privilege of supporting achievement of important government agency mission objectives, since 2004.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 27 contacts → | ||||
Indirect evidence “STEMBoard is an award-winning technical powerhouse specializing in professional advisory services for elite organizations in the U.S Government.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 26 contacts → | ||||
Partial evidence “At ViaTrie, we reimagine organizations, transform security, and advance society.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 15 contacts → | ||||
Indirect evidence “Pendleton Solutions, LLC is a small woman-owned business dedicated to providing U.S.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 13 contacts → | ||||
Indirect evidence “The Soter Group is a small business based in Arlington, Virginia.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 11 contacts → | ||||
Partial evidence “Hancock & Poole Security (HPS) Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 10 contacts → | ||||
Partial evidence “XPD Analytics is a government consulting company specializing in engineering, research, and financial services.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 8 contacts → | ||||
Partial evidence “ENZO IT Solutions,"ENZO", is a leading organization of security, audit, and advisory experts.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 7 contacts → | ||||
Partial evidence “At Neuma Consulting we are dedicated to fearlessly tackling some of the nation’s toughest challenges.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 7 contacts → | ||||
Partial 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 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 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 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 7 contacts → | ||||
Partial evidence “Alico Cyber Solutions provides information security serving highly satisfied customers in both the federal and private sectors.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 6 contacts → | ||||
Partial evidence “The Meridian Group provides niche expertise to meet the evolving needs of our clients through an in-depth understanding of the energy & water security landscape and Department of…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 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 27, 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: critical infrastructure security consulting 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 critical infrastructure security consulting companies.
- Partial evidence
- Its own public description names part of critical infrastructure security consulting companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name critical infrastructure security consulting 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 25 of 81 critical infrastructure security consulting companies based in Arlington, United States
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Critical infrastructure security consulting companies based in Arlington, United States at a glance
As of Sep 27, 2026Companies by employee count
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 81 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 critical infrastructure security consulting 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 Arlington, United States whose own description of what they do matches “critical infrastructure security consulting 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 critical infrastructure security consulting 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 critical infrastructure security consulting companies, 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, 492 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 27, 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.
Critical infrastructure security consulting companies by metro in the United States
- Critical infrastructure security consulting companies in Washington193
- Critical infrastructure security consulting companies in New York173
- Critical infrastructure security consulting companies in Houston126
- Critical infrastructure security consulting companies in Atlanta115
- Critical infrastructure security consulting companies in Austin88
- Critical infrastructure security consulting companies in Dallas85
- Critical infrastructure security consulting companies in Miami77
- Critical infrastructure security consulting companies in Chicago73
- Critical infrastructure security consulting companies in Los Angeles72
- Critical infrastructure security consulting companies in Tampa62
- Critical infrastructure security consulting companies in San Francisco61
- Critical infrastructure security consulting companies in Alexandria60
- Critical infrastructure security consulting companies in Mclean57
- Critical infrastructure security consulting companies in Charlotte53
- Critical infrastructure security consulting companies in San Antonio53
- Critical infrastructure security consulting companies in Denver52
- Critical infrastructure security consulting companies in San Diego51
- Critical infrastructure security consulting companies in Boston49
- Critical infrastructure security consulting companies in Reston49
- Critical infrastructure security consulting companies in Columbia45
- Critical infrastructure security consulting companies in Seattle45
- Critical infrastructure security consulting companies in Ashburn44
- Critical infrastructure security consulting companies in Las Vegas44
- Critical infrastructure security consulting companies in Herndon42
- Critical infrastructure security consulting companies in Phoenix38
- Critical infrastructure security consulting companies in Huntsville37
- Critical infrastructure security consulting companies in Orlando37
- Critical infrastructure security consulting companies in Fairfax34
- Critical infrastructure security consulting companies in Vienna34
- Critical infrastructure security consulting companies in Minneapolis33
- Critical infrastructure security consulting companies in Raleigh33
- Critical infrastructure security consulting companies in Colorado Springs31
- Critical infrastructure security consulting companies in Baltimore30
- Critical infrastructure security consulting companies in Richmond30
- Critical infrastructure security consulting companies in Bethesda28
- Critical infrastructure security consulting companies in Columbus27
- Critical infrastructure security consulting companies in Scottsdale27
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 critical infrastructure security consulting 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 critical infrastructure security consulting companies are there based in Arlington, United States?
RevenueBase identified 81 critical infrastructure security consulting companies 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?
Legacy Grant Thornton Public Sector NOW Guidehouse, headquartered in Arlington, tops this list with the largest team on record.
Which city in the United States has the most critical infrastructure security consulting companies?
Washington leads the United States with 193 headquartered companies, followed by New York (173) and Houston (126). Arlington has 81.
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 492 verified decision-maker contacts tracked across these 81 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 27, 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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