Company lists · Data refreshed September 2026

Top 25 Iot security software companies based in the United States

RevenueBase identified 573 iot security software companies headquartered in the United States as of September 2026 and tracks 29,699 professional contacts across them, including 14,110 with verified work emails and 7,716 with mobile numbers. New York is the largest hub.

This list covers iot security software 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 4, 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.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
573Companies
29,699Contacts tracked
14,110Verified emails
7,716Mobile numbers
Unlock all 573 companies Free signup · no credit card · 500 free credits

The 25 largest iot security software companies based in the United States

Ranked by team size
Top 25 of 573 iot security software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names iot security software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
TrellixPartial evidence
Plano, TX, United StatesHQ checked Sep 4, 20261,001-5,0003,490

“Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.”

Source: company website · checked Sep 4, 2026
2
SentineloneIndirect evidence
Mountain View, CA, United StatesHQ checked Sep 4, 20261,001-5,0003,046

“SentinelOne is the world's leading AI-powered cybersecurity platform.”

Source: company website · checked Sep 4, 2026
3
BarracudaIndirect evidence
Campbell, GA, United StatesHQ checked Sep 4, 20261,001-5,0002,108

“Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.”

Source: company website · checked Sep 4, 2026
4
FortraIndirect evidence
Eden Prairie, MN, United StatesHQ checked Sep 4, 20261,001-5,0001,640

“Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.”

Source: company website · checked Sep 4, 2026
5Austin, TX, United StatesHQ checked Sep 4, 20261,001-5,0001,252

“Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.”

Source: company website · checked Sep 4, 2026
6
PASPartial evidence
Houston, TX, United StatesHQ checked Sep 4, 2026201-5001,227

“PAS, part of Hexagon's Asset Lifecycle Intelligence division, delivers software solutions that prevent, detect, & remediate cyber threats, reduce process safety risks, and…”

Source: company website · checked Sep 4, 2026
7
ImpervaIndirect evidence
Austin, TX, United StatesHQ checked Sep 4, 202610001+1,211

“On Dec.”

Source: company website · checked Sep 4, 2026
8
Watchguard TechnologiesIndirect evidence
Seattle, WA, United StatesHQ checked Sep 4, 20261,001-5,0001,054

“WatchGuard® Technologies, Inc.”

Source: company website · checked Sep 4, 2026
9
Absolute SecurityPartial evidence
Seattle, WA, United StatesHQ checked Sep 4, 2026501-1,000789

“Absolute Security is partnered with more than 28 of the world’s leading endpoint device manufacturers, embedded in the firmware of 600 million devices, trusted by global…”

Source: company website · checked Sep 4, 2026
10
Dragos, INCIndirect evidence
Hanover, TX, United StatesHQ checked Sep 4, 2026501-1,000544

“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 4, 2026
11
DUO SecurityPartial evidence
Ann Arbor, TX, United StatesHQ checked Sep 4, 2026501-1,000429

“We are Duo, and we’re here to democratize security.”

Source: company website · checked Sep 4, 2026
12
NovacoastPartial evidence
Wichita, TX, United StatesHQ checked Sep 4, 2026201-500378

“Novacoast is an international cybersecurity company specializing in IT services and software development.”

Source: company website · checked Sep 4, 2026
13
CYBLEPartial evidence
Cupertino, CA, United StatesHQ checked Sep 4, 2026201-500267

“Cyble is the world’s first intelligence-driven, AI-native security platform that brings together detection, protection, and remediation across the entire digital attack surface.”

Source: company website · checked Sep 4, 2026
14
COROIndirect evidence
Chicago, IL, United StatesHQ checked Sep 4, 2026201-500262

“Coro, the leading cybersecurity platform for small and mid-size businesses, empowers organizations to easily defend against malware, ransomware, phishing, data leakage, network…”

Source: company website · checked Sep 4, 2026
15
SpycloudIndirect evidence
Austin, TX, United StatesHQ checked Sep 4, 2026201-500241

“SpyCloud transforms recaptured darknet data to disrupt cybercrime.”

Source: company website · checked Sep 4, 2026
16
Hirsch USAPartial evidence
Santa Ana, CA, United StatesHQ checked Sep 4, 2026201-500234

“Hirsch is a global leader in unified security solutions, helping enterprise and SMB organisations integrate perimeter security, intrusion detection, access control, video…”

Source: company website · checked Sep 4, 2026
17
VeherePartial evidence
San Francisco, CA, United StatesHQ checked Sep 4, 2026201-500210

“Vehere is an AI cybersecurity company operating at the intersection of national security and enterprise security.”

Source: company website · checked Sep 4, 2026
18
Eset North AmericaIndirect evidence
San Diego, CA, United StatesHQ checked Sep 4, 202651-200180

“For more than 30 years we have been here helping to watch over and protect progress.”

Source: company website · checked Sep 4, 2026
19
DefendedgeIndirect evidence
Elmhurst, IL, United StatesHQ checked Sep 4, 202651-200166

“DefendEdge is a leading US-based cybersecurity firm specializing in protecting clients' firewalls, endpoints, and applications against cyber threats and vulnerabilities.”

Source: company website · checked Sep 4, 2026
20
At&t CybersecurityPartial evidence
Dallas, TX, United StatesHQ checked Sep 4, 20261,001-5,000158

“AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.”

Source: company website · checked Sep 4, 2026
21
Shift5Indirect evidence
Arlington, VA, United StatesHQ checked Sep 4, 202651-200137

“Former military officers who stood up U.S.”

Source: company website · checked Sep 4, 2026
22
Astrix SecurityIndirect evidence
New York, United StatesHQ checked Sep 4, 202651-200124

“Modern businesses run on millions of machine‑to‑machine connections: Autonomous AI Agents orchestrating work, CI/CD service accounts, SaaS OAuth apps, and API keys that keep data…”

Source: company website · checked Sep 4, 2026
23
Prime SecuredPartial evidence
Elkhorn, NE, United StatesHQ checked Sep 4, 202651-200118

“We Build IT and Security Solutions that solve problems and deliver peace of mind through trust and technology.”

Source: company website · checked Sep 4, 2026
24
Cylance INCPartial evidence
Eden Prairie, MN, United StatesHQ checked Sep 4, 20265,001-10,000110

“As of February 3, 2025, Cylance® endpoint security assets, including CylanceENDPOINT, CylanceEDGE and CylanceMDR, are now part of Arctic Wolf.”

Source: company website · checked Sep 4, 2026
25
ThreatdownPartial evidence
Santa Clara, CA, United StatesHQ checked Sep 4, 2026501-1,000104

“ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…”

Source: company website · checked Sep 4, 2026

Showing 25 of 573 iot security software companies based in the United States

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Iot security software companies based in the United States at a glance

As of Sep 4, 2026
11-50Median size (employees)
New YorkLargest hub · 33 HQs
7,716Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
238
11-50
202
51-200
81
201-500
21
501-1,000
10
1,001-5,000
14
5,001-10,000
3
10001+
2

Verified emails by last verification

0–30
0
31–60
1,279
61–90
7,491
90–180
5,235
180+
105

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 iot security software 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 “iot security software 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 iot security software 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, 14,110 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 4, 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.

Iot security software companies by metro

  • Iot security software companies in New York33

Frequently asked

How many iot security software companies are there based in the United States?

RevenueBase identified 573 iot security software 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?

Trellix, headquartered in Plano, tops this list with the largest team on record.

Which city has the most iot security software companies?

New York leads with 33 headquartered companies, followed by Austin (17) and Miami (15).

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 14,110 verified decision-maker contacts tracked across these 573 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 4, 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.