Company lists · Data refreshed September 2026

Top 25 Cybersecurity advisory and data privacy consulting services based in Washington, United States

RevenueBase identified 267 cybersecurity advisory and data privacy consulting services headquartered in Washington, United States as of September 2026 and tracks 2,844 professional contacts across them, including 1,057 with verified work emails. Across the United States, New York is the largest hub for this category (417 companies); Washington follows with 267.

This list covers cybersecurity advisory and data privacy consulting services 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 24, 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 24, 2026 86% judged on-target in blind review
267Companies
2,844Contacts tracked
1,057Verified emails
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The 25 largest cybersecurity advisory and data privacy consulting services based in Washington, United States

Ranked by team size
Top 25 of 267 cybersecurity advisory and data privacy consulting services based in Washington, United States, ranked by team size, largest first. Data refreshed Sep 24, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity advisory and data privacy 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-50110 contacts →

Partial evidence

“Illuminate provides government agencies, commercial enterprises, and network operators with the data, services, and technology that helps them protect the information that…”

Source: RevenueBase Database · checked Sep 24, 2026
2Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 2026n/a106 contacts →

Partial evidence

“ShorePoint recognizes that cybersecurity is the challenge of our generation.”

Source: RevenueBase Database · checked Sep 24, 2026
3Strong evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-200100 contacts →

Strong evidence

“Arlo Solutions (Arlo), is a Washington, DC professional services company, providing cybersecurity and management consulting services to the US government in the defense…”

Source: RevenueBase Database · checked Sep 24, 2026
4Strong evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20091 contacts →

Strong evidence

“First Health Advisory partners with healthcare and government organizations to strengthen cybersecurity strategy, build operational resilience, and safeguard patient care.”

Source: RevenueBase Database · checked Sep 24, 2026
5Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 2026201-50087 contacts →

Indirect evidence

“ACI Federal™ is an award-winning ISO/IEC 27001 (InfoSec), ISO 9001(QMS) Certified, focused on National Security and Cyber Security Initiatives.”

Source: RevenueBase Database · checked Sep 24, 2026
6Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20079 contacts →

Indirect evidence

“You need more than a contractor.”

Source: RevenueBase Database · checked Sep 24, 2026
7Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 2026501-1,00075 contacts →

Indirect evidence

“REDLattice™ is a U.S-owned global defense tech company delivering preeminent digital access for its customers within the global intelligence community, law enforcement, and…”

Source: RevenueBase Database · checked Sep 24, 2026
8Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20072 contacts →

Partial evidence

“ZwillGen is a boutique law firm specializing in technology and privacy law.”

Source: RevenueBase Database · checked Sep 24, 2026
9Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5072 contacts →

Indirect evidence

“As organizations navigate the demands of today’s fast-moving IT landscape, Dantech stands as a trusted partner with the expertise to guide, implement, and optimize technology…”

Source: RevenueBase Database · checked Sep 24, 2026
10Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20071 contacts →

Partial evidence

“For over 20 years, TDI’s one and only passion has been delivering cybersecurity solutions to effectively manage the business of cyber.”

Source: RevenueBase Database · checked Sep 24, 2026
11Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5067 contacts →

Indirect evidence

“The Chertoff Group is a global leader in security.”

Source: RevenueBase Database · checked Sep 24, 2026
12Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20066 contacts →

Indirect evidence

“FWG Solutions is an award-winning firm certified by the SBA as an 8(a) that was founded in 2012.”

Source: RevenueBase Database · checked Sep 24, 2026
13Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5058 contacts →

Partial evidence

“iDS is a strategic consulting, technology, and expert services firm.”

Source: RevenueBase Database · checked Sep 24, 2026
14Strong evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20055 contacts →

Strong evidence

“VeraSafe’s mission is to provide the world’s best privacy and data protection advice, with a human touch.”

Source: RevenueBase Database · checked Sep 24, 2026
15Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20046 contacts →

Indirect evidence

“Creative Business Solutions Inc.(CBS) is an “award winning” Certified Participant in the U.S.”

Source: RevenueBase Database · checked Sep 24, 2026
16Strong evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20041 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 24, 2026
17Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202651-20039 contacts →

Indirect evidence

“Avid Systems LLC is a woman-owned Information Technology Services firm based in Washington, DC, with over 20 years of proven expertise in delivering transformative IT solutions.”

Source: RevenueBase Database · checked Sep 24, 2026
18Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5037 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 24, 2026
19Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 20261-1029 contacts →

Indirect evidence

“Touchstone Futures provides deep expertise in strategy, execution, and composite risk management honed by our collective service within US Government cyberspace, intelligence…”

Source: RevenueBase Database · checked Sep 24, 2026
20Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5028 contacts →

Partial evidence

“At JSOC IT, we don’t just offer cybersecurity solutions-we build resilient, secure environments tailored to your business needs.”

Source: RevenueBase Database · checked Sep 24, 2026
21Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5027 contacts →

Indirect evidence

“We’re Personified.”

Source: RevenueBase Database · checked Sep 24, 2026
22Partial evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5026 contacts →

Partial evidence

“iP-PLUS CONSULTING is an IT solutions company that focuses on providing high quality professionals, innovative technical solutions, and delivering exceptional service support to…”

Source: RevenueBase Database · checked Sep 24, 2026
23Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5026 contacts →

Indirect evidence

“Valens Global takes a comprehensive, methodical, and thoughtful approach to security.”

Source: RevenueBase Database · checked Sep 24, 2026
24Strong evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5024 contacts →

Strong evidence

“DataPatrol is a software company, specialized in providing Security and Privacy of company's data and information in an evolved way.”

Source: RevenueBase Database · checked Sep 24, 2026
25Indirect evidenceWashington, DC, United StatesHQ checked Sep 24, 202611-5024 contacts →

Indirect 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 24, 2026

Showing 25 of 267 cybersecurity advisory and data privacy consulting services based in Washington, United States

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Cybersecurity advisory and data privacy consulting services based in Washington, United States at a glance

As of Sep 24, 2026
37.2%Verified-email coverage
10.7Average contacts per company
1-10Median size (employees)
Sep 24, 2026Page data refreshed

Companies by employee count

1-10
151
11-50
80
51-200
29
201-500
4
501-1,000
1
5,001-10,000
1
10001+
1

Email recency for this list is measured across the whole United States list rather than for Washington, so it is reported there. Company counts and contact totals on this page are exact for Washington, over 267 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 cybersecurity advisory and data privacy 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 Washington, United States whose own description of what they do matches “cybersecurity advisory and data privacy 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 cybersecurity advisory and data privacy 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 cybersecurity advisory and data privacy consulting services, 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, 1,057 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 24, 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.

Cybersecurity advisory and data privacy 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 cybersecurity advisory and data privacy 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 cybersecurity advisory and data privacy consulting services are there based in Washington, United States?

RevenueBase identified 267 cybersecurity advisory and data privacy consulting services 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?

Illuminate Technologies, headquartered in Washington, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity advisory and data privacy consulting services?

New York leads the United States with 417 headquartered companies, followed by Washington (267) and Houston (211).

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 1,057 verified decision-maker contacts tracked across these 267 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 24, 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.