Company lists · Data refreshed September 2026

Top 25 Grid cybersecurity consultants based in the United States

Name: Grid cybersecurity consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 764 companies tracked

RevenueBase identified 764 grid cybersecurity consultants headquartered in the United States as of September 2026 and tracks 10,076 professional contacts across them, including 5,018 with verified work emails. Houston is the largest hub.

This list covers grid cybersecurity consultants headquartered in the 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

764Companies

10,076Contacts tracked

5,018Verified emails

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The 25 largest grid cybersecurity consultants based in the United States

Ranked by team size

Top 25 of 764 grid cybersecurity consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to grid cybersecurity 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	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,222 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 28, 2026
2	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,232 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 28, 2026
3	Electric Power Engineers	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	501-1,000	630 contacts →
	Partial evidence “Electric Power Engineers (EPE) is a global advisory and engineering firm advancing grid reliability, resilience, flexibility, and affordability.” Source: RevenueBase Database · checked Sep 28, 2026
4	Security Risk Advisors	Partial evidence	Philadelphia, PA, United StatesHQ checked Sep 28, 2026	201-500	315 contacts →
	Partial evidence “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Source: RevenueBase Database · checked Sep 28, 2026
5	Mindpoint Group, A Quantum SKY Company	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	204 contacts →
	Partial evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 28, 2026
6	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 28, 2026	201-500	182 contacts →
	Indirect evidence “With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Source: RevenueBase Database · checked Sep 28, 2026
7	OSC Edge	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	150 contacts →
	Indirect evidence “From CND in the Cloud to CSfC with Enterprise Remote Capabilities, OSC Edge empowers organizations with solutions that prepare them for today and tomorrow.” Source: RevenueBase Database · checked Sep 28, 2026
8	Edgile	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	51-200	119 contacts →
	Partial evidence “Edgile was founded in 2001 to deliver strategic cybersecurity and risk management services to the Fortune 500.” Source: RevenueBase Database · checked Sep 28, 2026
9	Foxguard	Indirect evidence	Christiansburg, VA, United StatesHQ checked Sep 28, 2026	51-200	116 contacts →
	Indirect evidence “Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.” Source: RevenueBase Database · checked Sep 28, 2026
10	Directdefense	Indirect evidence	Denver, CO, United StatesHQ checked Sep 28, 2026	51-200	111 contacts →
	Indirect evidence “DirectDefense provides enterprise risk assessments, penetration testing, ICS/SCADA security services, and 24/7 managed security services for companies of all sizes.” Source: RevenueBase Database · checked Sep 28, 2026
11	SBS Cybersecurity	Partial evidence	Madison, SD, United StatesHQ checked Sep 28, 2026	51-200	105 contacts →
	Partial evidence “SBS CyberSecurity, LLC (SBS) is a premier cybersecurity consulting and audit firm.” Source: RevenueBase Database · checked Sep 28, 2026
12	Trustedsec	Indirect evidence	Fairlawn, OH, United StatesHQ checked Sep 28, 2026	51-200	102 contacts →
	Indirect evidence “TrustedSec is an end-to-end security consulting company that provides customized services to build client-defined success.” Source: RevenueBase Database · checked Sep 28, 2026
13	Accessit Group	Partial evidence	King Of Prussia, PA, United StatesHQ checked Sep 28, 2026	51-200	91 contacts →
	Partial evidence “25 Years Leading in Cybersecurity, and we’re just getting started.” Source: RevenueBase Database · checked Sep 28, 2026
14	Secureit	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	51-200	77 contacts →
	Partial evidence “SecureIT is a leading provider of cybersecurity management consulting and technical services to government agencies, corporations and non-profit organizations.” Source: RevenueBase Database · checked Sep 28, 2026
15	Apollo Information Systems	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	51-200	64 contacts →
	Partial evidence “Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: RevenueBase Database · checked Sep 28, 2026
16	Infosight, INC	Indirect evidence	Miami Lakes, FL, United StatesHQ checked Sep 28, 2026	11-50	63 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
17	Atom Power, INC	Partial evidence	Huntersville, NC, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Partial evidence “Atom Power is an innovative company providing transformative grid technology that delivers unparalleled protection, visibility, and control at the point of consumption.” Source: RevenueBase Database · checked Sep 28, 2026
18	Trofholz Technologies, INC	Indirect evidence	Sacramento, CA, United StatesHQ checked Sep 28, 2026	51-200	60 contacts →
	Indirect evidence “Trofholz Technologies is a Woman-Owned; Veteran-Owned Small Business located in Sacramento, California.” Source: RevenueBase Database · checked Sep 28, 2026
19	Def-Logix, INC	Indirect evidence	San Antonio, TX, United StatesHQ checked Sep 28, 2026	51-200	58 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
20	Secure Traces	Indirect evidence	Alpharetta, GA, United StatesHQ checked Sep 28, 2026	51-200	52 contacts →
	Indirect evidence “Secure Traces is a unique cyber security services provider with an impeccable track record of delivering outstanding services, we are driven by passion and backed by our extensive…” Source: RevenueBase Database · checked Sep 28, 2026
21	AVINT	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	51-200	48 contacts →
	Indirect evidence “Your Vision Achieved.” Source: RevenueBase Database · checked Sep 28, 2026
22	Bridges Consulting	Indirect evidence	Hanover, MD, United StatesHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “With the passion for making an impact, Bridges solves national security and commercial vulnerability challenges using cyber intelligence.” Source: RevenueBase Database · checked Sep 28, 2026
23	Athena Technology Group	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	51-200	45 contacts →
	Indirect evidence “Cyber Security (Vulnerability Assessments, 24/7 Operations, Hunt Teams, Risk Management, Cyber Response) Program Management (Acquisition, Financial, Technology Insertion) System…” Source: RevenueBase Database · checked Sep 28, 2026
24	Clearfocus Technologies	Partial evidence	Leesburg, VA, United StatesHQ checked Sep 28, 2026	51-200	43 contacts →
	Partial evidence “ClearFocus® Technologies provides advanced cybersecurity services that secure our nation’s most sensitive assets.” Source: RevenueBase Database · checked Sep 28, 2026
25	M.A. Polce	Indirect evidence	Rome, NY, United StatesHQ checked Sep 28, 2026	11-50	41 contacts →
	Indirect evidence “M.A.” 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: grid cybersecurity 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 grid cybersecurity consultants.
Partial evidence: Its own public description names part of grid cybersecurity consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name grid cybersecurity 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 764 grid cybersecurity consultants based in the United States

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Grid cybersecurity consultants based in the United States at a glance

As of Sep 28, 2026

49.8%Verified-email coverage

13.2Average contacts per company

1-10Median size (employees)

2.7%Largest-city concentration · Houston

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

467

11-50

224

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 764 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 grid cybersecurity 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 the United States whose own description of what they do matches “grid cybersecurity 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 grid cybersecurity 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 grid cybersecurity consultants, and records with no verified work email. Companies headquartered outside United States 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, 5,018 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.

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 grid cybersecurity 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 grid cybersecurity consultants are there based in the United States?

RevenueBase identified 764 grid cybersecurity consultants headquartered in the 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?

OPTIV, headquartered in Leawood, tops this list with the largest team on record.

Which city has the most grid cybersecurity consultants?

Houston leads with 21 headquartered companies, followed by Washington (21) and New York (16).

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 5,018 verified decision-maker contacts tracked across these 764 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.