Company lists · Data refreshed September 2026

Top 25 Corporate security consultants based in Washington, United States

Name: Corporate security consultants based in Washington, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 9, 2026 57 companies tracked

RevenueBase identified 57 corporate security consultants headquartered in Washington, United States as of September 2026 and tracks 589 professional contacts across them, including 154 with verified work emails and 184 with mobile numbers. New York is the largest hub.

This list covers corporate security consultants headquartered in Washington, 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 9, 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 9, 2026 86% judged on-target in blind review

57Companies

589Contacts tracked

154Verified emails

184Mobile numbers

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The 25 largest corporate security consultants based in Washington, United States

Ranked by team size

Top 25 of 57 corporate security consultants based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 9, 2026. RevenueBase Smart Search rates how each company's information relates to corporate security consultants: 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	The Chertoff Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	67 contacts →
	Partial evidence “The Chertoff Group is a global leader in security.” Source: RevenueBase Database · checked Sep 9, 2026
2	Colorado Security Agency	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	51-200	63 contacts →
	Partial evidence “Established in 1974, Colorado Security Agency (CSA) is a professional security provider based in Georgetown Washington DC.” Source: RevenueBase Database · checked Sep 9, 2026
3	Command Group	Strong evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	51-200	41 contacts →
	Strong evidence “Command Group is an international security and intelligence consulting firm that provides advisory services to governments, corporations and high net worth individuals.” Source: RevenueBase Database · checked Sep 9, 2026
4	Global Security And Innovative Strategies Gsis	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	37 contacts →
	Partial evidence “Global Security & Innovative Strategies (GSIS) leverages its extensive private sector, homeland, public security, public sector and international expertise to provide…” Source: RevenueBase Database · checked Sep 9, 2026
5	Valens Global	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	26 contacts →
	Partial evidence “Valens Global takes a comprehensive, methodical, and thoughtful approach to security.” Source: RevenueBase Database · checked Sep 9, 2026
6	Good Harbor Security Risk Management	Strong evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	24 contacts →
	Strong evidence “Good Harbor Security Risk Management, LLC advises Boards, CEOs, CISOs and other corporate executives, investment professionals, and government leaders on managing cyber risk.” Source: RevenueBase Database · checked Sep 9, 2026
7	Personnel Security Professionals	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	11 contacts →
	Partial evidence “Personnel Security Professionals was started by two veterans who have served as government and contract subject matter experts in Industry and Personnel Security for more than 30…” Source: RevenueBase Database · checked Sep 9, 2026
8	Inguardians, INC	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	10 contacts →
	Partial evidence “InGuardians, Inc is an independent information security consulting company based in Washington D.C.” Source: RevenueBase Database · checked Sep 9, 2026
9	Atps Security	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	51-200	5 contacts →
	Indirect evidence “A.T.” Source: RevenueBase Database · checked Sep 9, 2026
10	Cyber Advisory Partners	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	5 contacts →
	Partial evidence “We are a mission-driven team of former entrepreneurs, industry executives and cybersecurity experts helping emerging and leading security companies access the resources…” Source: RevenueBase Database · checked Sep 9, 2026
11	Smith Brandon International, A Kreller Company	Strong evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	4 contacts →
	Strong evidence “What We Do: We provide CFOs, corporate security directors, and business professionals with investigative services, consultations, and risk assessments to help our clients make the…” Source: RevenueBase Database · checked Sep 9, 2026
12	Rebel Global Security	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	4 contacts →
	Partial evidence “Rebel Global Security (RGS) is a Washington-based firm that provides national security advice to the private sector.” Source: RevenueBase Database · checked Sep 9, 2026
13	XK Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	4 contacts →
	Partial evidence “XK Group provides advisory services Due Diligence Security Assessments Competitive Intelligence Background Investigations Crisis Management Insider Threat Analysis Fraud…” Source: RevenueBase Database · checked Sep 9, 2026
14	Principia Raid	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	3 contacts →
	Indirect evidence “principia/RAID was founded with a single mission: Help our clients be their most successful, creative, ground-breaking and big-picture selves without having to worry about the…” Source: RevenueBase Database · checked Sep 9, 2026
15	Axios Security Group	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	3 contacts →
	Partial evidence “Axios Security Group (ASG) is a veteran owned and operated Physical and Digital Security Consulting Company.” Source: RevenueBase Database · checked Sep 9, 2026
16	Stratagem Consulting LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	3 contacts →
	Partial evidence “Stratagem Consulting LLC was founded by former FBI senior leaders, partnering with a cadre of national security experts, focused on enabling individuals and organizations to seize…” Source: RevenueBase Database · checked Sep 9, 2026
17	Iscg International Security Consulting Group	Strong evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	3 contacts →
	Strong evidence “International Security Consulting Group (ISCG) is a premier US-based security consultancy, driven by a team of dedicated, results-oriented professionals.” Source: RevenueBase Database · checked Sep 9, 2026
18	ALUMA	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	3 contacts →
	Partial evidence “Aluma is a risk management/security advisory firm that specializes in the U.S.” Source: RevenueBase Database · checked Sep 9, 2026
19	Longitude Strategies	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	2 contacts →
	Indirect evidence “Based in the Washington, D.C.” Source: RevenueBase Database · checked Sep 9, 2026
20	Clt3 Consulting, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	2 contacts →
	Partial evidence “Drawing upon decades of experience protecting US Presidents and influential world leaders, CLT3 Security Consulting provides companies, government entities and individuals with…” Source: RevenueBase Database · checked Sep 9, 2026
21	Emergency Response & Global Security Solutions	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	11-50	1 contacts →
	Partial evidence “Emergency Response and Global Security Solutions, LLC (ERGSS) is a premier consulting firm that delivers exceptional professional consulting, training, and services to…” Source: RevenueBase Database · checked Sep 9, 2026
22	Hacking The Cyber Threat	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	1 contacts →
	Indirect evidence “The average cybersecurity breach costs U.S.” Source: RevenueBase Database · checked Sep 9, 2026
23	Night OWL Protective Services, LLC	Partial evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	1 contacts →
	Partial evidence “At Night Owl Protective Services we provide common sense, cost effective security protective services for any commercial or residential site in the nation's capital.” Source: RevenueBase Database · checked Sep 9, 2026
24	Cybersecurity For Humans	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	1 contacts →
	Indirect evidence “Human behavior continues to be the single most important factor in great cyber hygiene.” Source: RevenueBase Database · checked Sep 9, 2026
25	The JMB Consulting Group, LLC	Indirect evidence	Washington, DC, United StatesHQ checked Sep 9, 2026	1-10	1 contacts →
	Indirect evidence “The JMB Consulting Group, LLC is a Native American and woman-owned small business based in the District of Columbia, Maryland, and Virginia started by a Certified Information…” Source: RevenueBase Database · checked Sep 9, 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: corporate security consultants. 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 corporate security consultants.
Partial evidence: Its own public description names part of corporate security consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name corporate security consultants. 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 57 corporate security consultants based in Washington, United States

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Corporate security consultants based in Washington, United States at a glance

As of Sep 9, 2026

26.1%Verified-email coverage

31.2%Mobile-number coverage

10.3Average contacts per company

1-10Median size (employees)

170.2%Largest-city concentration · New York

Sep 9, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

1400–30

1331–60

061–90

090–180

1180+

Company record updated

Median 72.0d

00–30

21031–60

27961–90

7290–180

28180+

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 corporate security consultants, 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 Washington, United States whose own description of what they do matches “corporate security consultants”. 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 corporate security consultants), 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 corporate security consultants, and records with no verified work email. Companies headquartered outside Washington 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, 154 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 9, 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.

Corporate security consultants by metro in the United States

Corporate security consultants in New York97
Corporate security consultants in Houston72
Corporate security consultants in Los Angeles69
Corporate security consultants in Miami55
Corporate security consultants in Atlanta52
Corporate security consultants in Washington45
Corporate security consultants in Chicago42

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 corporate security consultants, 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 corporate security consultants are there based in Washington, United States?

RevenueBase identified 57 corporate security consultants headquartered in Washington, 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?

The Chertoff Group, headquartered in Washington, tops this list with the largest team on record.

Which city has the most corporate security consultants?

New York leads with 97 headquartered companies, followed by Houston (72) and Los Angeles (69).

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 154 verified decision-maker contacts tracked across these 57 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 9, 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.