Company lists · Data refreshed September 2026
Top 25 Power grid security companies based in the United States
RevenueBase identified 205 power grid security companies headquartered in the United States as of September 2026 and tracks 3,756 professional contacts across them, including 2,053 with verified work emails and 1,497 with mobile numbers. Houston is the largest hub.
This list covers power grid security companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 25 largest power grid security companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 551 | ||||
“Dragos provides the most effective OT cybersecurity technology for industrial and critical infrastructure to deliver on our global mission: to safeguard civilization.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 494 | ||||
“Qualitrol is a global leader in electrical grid monitoring solutions for businesses that manage, operate, or support the power grid.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 375 | ||||
“We protect the world’s critical infrastructure from cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 231 | ||||
“Fortress is the AI-powered cybersecurity company defending critical infrastructure, government agencies, and their supply chains against cyber threats and mission risks.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 182 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 139 | ||||
“Gridware is a technology company focused on protecting and enhancing the electrical grid.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 137 | ||||
“Solis is a leading provider of managed cyber security services and cyber incident response.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 116 | ||||
“Foxguard delivers comprehensive OT Cyber Security and Compute Solutions tailored to meet the unique needs of critical infrastructures.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Smart Wires INCPartial evidence | 105 | |||
“Smart Wires is the world’s leading grid enhancing technology and services provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 75 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 65 | ||||
“RevelSI is a global cybersecurity, AI, software, and infrastructure services organization.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 64 | ||||
“Apollo Information Systems delivers intelligence-led cybersecurity solutions for government agencies, educational institutions, and enterprises.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 61 | ||||
“We specialize in providing comprehensive cyber security solutions by leveraging our information security background in the GovCon and military experiences to serve the federal…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Power Grid Components, INCStrong evidence | 39 | |||
“Power Grid Components (PGC), now MacLean Power Systems (MPS), supplies highly engineered power equipment for substations across the North American grid.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 38 | ||||
“Are You Ready to Protect Your Business with the Best Cybersecurity Solutions?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 33 | ||||
Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | SeculoreIndirect evidence | 31 | |||
“SecuLore was acquired by Motorola Solutions in 2026.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 29 | ||||
“At Cyber Realm Solutions, we provide the expertise needed to support every stage of cybersecurity initiatives across nuclear, utility, and critical infrastructure environments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 28 | ||||
“Cavalry Solutions, LLC is a pure-play, security consulting services firm that serves critical infrastructure and specializes in complex systems.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 28 | ||||
“CipherTechs is now part of CyberMaxx, a tech-enabled cybersecurity service provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | US NetworkPartial evidence | 27 | |||
“Empowering Trust, Securing the Future At the core of our mission is a simple yet powerful principle: empowering our customers and partners with the freedom to choose solutions…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 25 | ||||
“At Armexa, we protect what matters most.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 25 | ||||
“At SkyHelm, our mission is to protect America’s critical infrastructure technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 | ||||
“We engineer the power grid” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 24 | ||||
“InfraShield is a U.S-based cyber-physical security company specializing in the protection of critical infrastructure systems across OT and IT environments.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 205 power grid security companies based in the United States
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Power grid security companies based in the United States at a glance
As of Sep 5, 2026Companies by employee count
Verified emails by last verification
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 power grid security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “power grid security companies”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among power grid security companies, 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 an evidence 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, 2,053 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 5, 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
How many power grid security companies are there based in the United States?
RevenueBase identified 205 power grid security companies 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?
Dragos, INC, headquartered in Hanover, tops this list with the largest team on record.
Which city has the most power grid security companies?
Houston leads with 9 headquartered companies, followed by New York (6) and Dallas (5).
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 2,053 verified decision-maker contacts tracked across these 205 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 5, 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.
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