Company lists · Data refreshed October 2026
Top 25 Industrial control system auditors based in the United States
RevenueBase identified 49 company matches for industrial control system auditors associated with the United States as of October 2026 and tracks 940 professional contacts across them, including 438 with verified work emails. Atlanta is the largest hub.
This list covers company matches for industrial control system auditors associated with the United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 16, 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 industrial control system auditors based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 193 contacts → | ||||
Exact match “Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 2 | 181 contacts → | ||||
Exact match “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 3 | 133 contacts → | ||||
Exact match “Single Source for Integrated Systems Quad Plus provides industrial control systems, solutions, and services to a variety of industries.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 4 | 99 contacts → | ||||
Exact match “INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 5 | 26 contacts → | ||||
Exact match “Securicon provides expert consulting for application, system and network security.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 6 | 24 contacts → | ||||
Exact match “Martin Control Systems, MartinCSI, is an industrial control system and automation integrator located in the Columbus, Ohio area.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 7 | 23 contacts → | ||||
Exact match “At Armexa, we protect what matters most.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 8 | 21 contacts → | ||||
Exact match “Fusion offers its clients unique industrial control systems (ICS) expertise with a core staff of professionals experienced in both Information Technology and Facility Operations.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 9 | 17 contacts → | ||||
Exact match “Formerly known as Nol-Tec Systems SE, Trutegra provides industrial control systems integration.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 10 | 17 contacts → | ||||
Exact match “At OCD Tech, we provide independent and objective assurance of your IT controls.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 11 | 13 contacts → | ||||
Exact match “ConvergentDS is a specialist consultancy focused on security, risk and compliance services.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 12 | 12 contacts → | ||||
Exact match “CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 13 | 11 contacts → | ||||
Exact match “Inavant exists to build reliable, secure, and effective industrial control systems and networks, and enable our clients to steward their people and equipment using 21st century…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 14 | 10 contacts → | ||||
Exact match “L.L.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 15 | 10 contacts → | ||||
Exact match “SecureXperts, Incorporated, “SXI”, founded in 2001 by a team of industry experts in cybersecurity, is recognized as an industry leader in the evaluation of cyber security posture…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 16 | 9 contacts → | ||||
Exact match “Critical Path Security offers a systematic approach to Information Security Management.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 17 | 8 contacts → | ||||
Exact match “BAI Security is a nationally recognized cybersecurity & compliance assessment firm specializing in innovative, yet cost-effective offerings for high-stakes industries, including…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 18 | 8 contacts → | ||||
Exact match “formerly Ampere Industrial Security) We secure the industrial world.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 19 | 5 contacts → | ||||
Exact match “Enaxy was founded in 2020 by team members who are Industrial Automation and Control Systems (IACS) technologists and former asset owners who have spent their careers protecting…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 20 | 5 contacts → | ||||
Exact match “Indegy, a leader in industrial cyber security, protects industrial control system (ICS) networks from cyber threats, malicious insiders and human error.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 21 | 5 contacts → | ||||
Exact match “L3 Solutions is a full service compliance-based IT audit firm specializing in evaluating financial institution, healthcare, and Microsoft vendor control environments for…” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 22 | 4 contacts → | ||||
Exact match “SandHurst-AEC is an architecture and engineering company that provides cybersecurity services for electronic safety and security of Industrial Control Systems.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 23 | 4 contacts → | ||||
Exact match “AssurancePoint is a quality-focused information security audit and compliance advisory firm.” Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 24 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 16, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “industrial control system auditors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 49 industrial control system auditors based in the United States
See the full list, filter by size, metro and specialty, and access 438 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Industrial control system auditors based in the United States at a glance
As of Oct 16, 2026Companies by employee count
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 49 companies.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- 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
- Company records associated with the United States whose business descriptions match “industrial control system auditors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 438 professional contacts with verified work emails across the full matched dataset. 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 October 16, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “industrial control system auditors”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many industrial control system auditors are there based in the United States?
RevenueBase identified 49 company matches for industrial control system auditors associated with the United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Insight Assurance tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most industrial control system auditors?
Atlanta leads with 4 company records, followed by Houston (2) and New York (2).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 438 professional contacts with verified work emails tracked across these 49 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 49 industrial control system auditors based in the United States. Start with a free account, no credit card.
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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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Company intelligence · public preview
Top 25 industrial control system auditors based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 49 matching company records for industrial control system auditors based in the United States, with 940 tracked contacts and 438 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 industrial control system auditors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Insight Assuranceinsightassurance.comHQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 193 contacts → |
“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Ampcus Cyberampcuscyber.comHQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 181 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Quad Plusquadplus.comHQ: New Lenox, IL, United StatesReported employees: 201-500 | New Lenox, IL, United States | 201-500 | Exact match | 133 contacts → |
“Single Source for Integrated Systems Quad Plus provides industrial control systems, solutions, and services to a variety of industries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Intercert INCintercert.comHQ: The Woodlands, TX, United StatesReported employees: 51-200 | The Woodlands, TX, United States | 51-200 | Exact match | 99 contacts → |
“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Securicon, LLCsecuricon.comHQ: Alexandria, VA, United StatesReported employees: 11-50 | Alexandria, VA, United States | 11-50 | Exact match | 26 contacts → |
“Securicon provides expert consulting for application, system and network security.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Martincsimartincsi.com HQ: Plain City, OH, United StatesReported employees: 11-50 | Plain City, OH, United States | 11-50 | Exact match | 24 contacts → |
“Martin Control Systems, MartinCSI, is an industrial control system and automation integrator located in the Columbus, Ohio area.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Armexaarmexa.comHQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 23 contacts → |
“At Armexa, we protect what matters most.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Fusionicsfusionics.com HQ: Fairfax, VA, United StatesReported employees: 11-50 | Fairfax, VA, United States | 11-50 | Exact match | 21 contacts → |
“Fusion offers its clients unique industrial control systems (ICS) expertise with a core staff of professionals experienced in both Information Technology and Facility Operations.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Trutegratrutegra.comHQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 17 contacts → |
“Formerly known as Nol-Tec Systems SE, Trutegra provides industrial control systems integration.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OCD Techocd-tech.com HQ: Braintree, MA, United StatesReported employees: 51-200 | Braintree, MA, United States | 51-200 | Exact match | 17 contacts → |
“At OCD Tech, we provide independent and objective assurance of your IT controls.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Convergent. Digital Securityconvergentrisks.com HQ: Burbank, CA, United StatesReported employees: 11-50 | Burbank, CA, United States | 11-50 | Exact match | 13 contacts → |
“ConvergentDS is a specialist consultancy focused on security, risk and compliance services.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Compciti Business Solutions, INCcompciti.comHQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
“CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inavantinavant.co HQ: Baton Rouge, LA, United StatesReported employees: 1-10 | Baton Rouge, LA, United States | 1-10 | Exact match | 11 contacts → |
“Inavant exists to build reliable, secure, and effective industrial control systems and networks, and enable our clients to steward their people and equipment using 21st century…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | L.L. Blue Engineeringllblueeng.com HQ: Peachtree City, GA, United StatesReported employees: 1-10 | Peachtree City, GA, United States | 1-10 | Exact match | 10 contacts → |
“L.L.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Securexperts, Incorporatedsecurexperts.com HQ: Kennedy Space Center, United StatesReported employees: 1-10 | Kennedy Space Center, United States | 1-10 | Exact match | 10 contacts → |
“SecureXperts, Incorporated, “SXI”, founded in 2001 by a team of industry experts in cybersecurity, is recognized as an industry leader in the evaluation of cyber security posture…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Critical Path Securitycriticalpathsecurity.com HQ: Kennesaw, GA, United StatesReported employees: 11-50 | Kennesaw, GA, United States | 11-50 | Exact match | 9 contacts → |
“Critical Path Security offers a systematic approach to Information Security Management.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | BAI Securitybaisecurity.net HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 8 contacts → |
“BAI Security is a nationally recognized cybersecurity & compliance assessment firm specializing in innovative, yet cost-effective offerings for high-stakes industries, including…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Ampyx Cyberampyxcyber.comHQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 8 contacts → |
“formerly Ampere Industrial Security) We secure the industrial world.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Enaxy LLCenaxy.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 5 contacts → |
“Enaxy was founded in 2020 by team members who are Industrial Automation and Control Systems (IACS) technologists and former asset owners who have spent their careers protecting…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Indegytenable.comHQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 5 contacts → |
“Indegy, a leader in industrial cyber security, protects industrial control system (ICS) networks from cyber threats, malicious insiders and human error.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | L3 Solutions, LLCl3-solutions.com HQ: Peoria, AZ, United StatesReported employees: 1-10 | Peoria, AZ, United States | 1-10 | Exact match | 5 contacts → |
“L3 Solutions is a full service compliance-based IT audit firm specializing in evaluating financial institution, healthcare, and Microsoft vendor control environments for…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sandhurst-Aec, LLCsandhurstaec.com HQ: Falls Church, VA, United StatesReported employees: 1-10 | Falls Church, VA, United States | 1-10 | Exact match | 4 contacts → |
“SandHurst-AEC is an architecture and engineering company that provides cybersecurity services for electronic safety and security of Industrial Control Systems.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Assurancepointassurancepoint.cpaHQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 4 contacts → |
“AssurancePoint is a quality-focused information security audit and compliance advisory firm.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Altavista Instruments & Controlsaic-company.com HQ: Altavista, VA, United StatesReported employees: 51-200 | Altavista, VA, United States | 51-200 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | 3j Industries3j-industries.com HQ: Troy, MI, United StatesReported employees: 1-10 | Troy, MI, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 49 company matches
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Industrial control system auditors: dataset insights
October 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
49 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 49 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for industrial control system auditors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many industrial control system auditors did RevenueBase find based in the United States?
The saved snapshot records 49 matching company records, 940 tracked contacts and 438 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 industrial control system auditors based in the United States. Snapshot: October 16, 2026. https://revenuebase.ai/companies/industrial-control-system-auditors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- AI companies based in the United States
- Cybersecurity companies based in the United States
- Manufacturing companies based in the United States
- Media companies based in the United States
- Oil and gas companies based in the United States
- Real estate companies based in the United States
Company intelligence · public preview
Top 25 industrial control system auditors based in the United States
RevenueBase records 49 matching company records for industrial control system auditors based in the United States, with 940 tracked contacts and 438 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 16, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 industrial control system auditors based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Insight Assuranceinsightassurance.com HQ: Tampa, FL, United StatesReported employees: 201-500 | Tampa, FL, United States | 201-500 | Exact match | 193 contacts → |
“Insight Assurance is a security and compliance firm trusted by more than 1,500 organizations for their SOC 1, SOC 2, SOC 3, PCI DSS, ISO 27001, ISO 27017/27018, ISO 27701, ISO…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Ampcus Cyberampcuscyber.com HQ: Chantilly, VA, United StatesReported employees: 1,001-5,000 | Chantilly, VA, United States | 1,001-5,000 | Exact match | 181 contacts → |
“Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Quad Plusquadplus.com HQ: New Lenox, IL, United StatesReported employees: 201-500 | New Lenox, IL, United States | 201-500 | Exact match | 133 contacts → |
“Single Source for Integrated Systems Quad Plus provides industrial control systems, solutions, and services to a variety of industries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Intercert INCintercert.com HQ: The Woodlands, TX, United StatesReported employees: 51-200 | The Woodlands, TX, United States | 51-200 | Exact match | 99 contacts → |
“INTERCERT is a multinational auditing company headquartered in Texas, United States operating at 28+ countries.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Securicon, LLCsecuricon.com HQ: Alexandria, VA, United StatesReported employees: 11-50 | Alexandria, VA, United States | 11-50 | Exact match | 26 contacts → |
“Securicon provides expert consulting for application, system and network security.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Martincsimartincsi.com HQ: Plain City, OH, United StatesReported employees: 11-50 | Plain City, OH, United States | 11-50 | Exact match | 24 contacts → |
“Martin Control Systems, MartinCSI, is an industrial control system and automation integrator located in the Columbus, Ohio area.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Armexaarmexa.com HQ: Houston, TX, United StatesReported employees: 11-50 | Houston, TX, United States | 11-50 | Exact match | 23 contacts → |
“At Armexa, we protect what matters most.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Fusionicsfusionics.com HQ: Fairfax, VA, United StatesReported employees: 11-50 | Fairfax, VA, United States | 11-50 | Exact match | 21 contacts → |
“Fusion offers its clients unique industrial control systems (ICS) expertise with a core staff of professionals experienced in both Information Technology and Facility Operations.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Trutegratrutegra.com HQ: Charlotte, NC, United StatesReported employees: 11-50 | Charlotte, NC, United States | 11-50 | Exact match | 17 contacts → |
“Formerly known as Nol-Tec Systems SE, Trutegra provides industrial control systems integration.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | OCD Techocd-tech.com HQ: Braintree, MA, United StatesReported employees: 51-200 | Braintree, MA, United States | 51-200 | Exact match | 17 contacts → |
“At OCD Tech, we provide independent and objective assurance of your IT controls.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Convergent. Digital Securityconvergentrisks.com HQ: Burbank, CA, United StatesReported employees: 11-50 | Burbank, CA, United States | 11-50 | Exact match | 13 contacts → |
“ConvergentDS is a specialist consultancy focused on security, risk and compliance services.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Compciti Business Solutions, INCcompciti.com HQ: New York, NY, United StatesReported employees: 11-50 | New York, NY, United States | 11-50 | Exact match | 12 contacts → |
“CompCiti has been providing IT auditing, compliance, security and management services for over 20 years.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Inavantinavant.co HQ: Baton Rouge, LA, United StatesReported employees: 1-10 | Baton Rouge, LA, United States | 1-10 | Exact match | 11 contacts → |
“Inavant exists to build reliable, secure, and effective industrial control systems and networks, and enable our clients to steward their people and equipment using 21st century…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | L.L. Blue Engineeringllblueeng.com HQ: Peachtree City, GA, United StatesReported employees: 1-10 | Peachtree City, GA, United States | 1-10 | Exact match | 10 contacts → |
“L.L.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Securexperts, Incorporatedsecurexperts.com HQ: Kennedy Space Center, United StatesReported employees: 1-10 | Kennedy Space Center, United States | 1-10 | Exact match | 10 contacts → |
“SecureXperts, Incorporated, “SXI”, founded in 2001 by a team of industry experts in cybersecurity, is recognized as an industry leader in the evaluation of cyber security posture…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Critical Path Securitycriticalpathsecurity.com HQ: Kennesaw, GA, United StatesReported employees: 11-50 | Kennesaw, GA, United States | 11-50 | Exact match | 9 contacts → |
“Critical Path Security offers a systematic approach to Information Security Management.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | BAI Securitybaisecurity.net HQ: United StatesReported employees: 11-50 | United States | 11-50 | Exact match | 8 contacts → |
“BAI Security is a nationally recognized cybersecurity & compliance assessment firm specializing in innovative, yet cost-effective offerings for high-stakes industries, including…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Ampyx Cyberampyxcyber.com HQ: Portland, OR, United StatesReported employees: 11-50 | Portland, OR, United States | 11-50 | Exact match | 8 contacts → |
“formerly Ampere Industrial Security) We secure the industrial world.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Enaxy LLCenaxy.com HQ: Dallas, TX, United StatesReported employees: 1-10 | Dallas, TX, United States | 1-10 | Exact match | 5 contacts → |
“Enaxy was founded in 2020 by team members who are Industrial Automation and Control Systems (IACS) technologists and former asset owners who have spent their careers protecting…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Indegytenable.com HQ: New York, United StatesReported employees: 51-200 | New York, United States | 51-200 | Exact match | 5 contacts → |
“Indegy, a leader in industrial cyber security, protects industrial control system (ICS) networks from cyber threats, malicious insiders and human error.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | L3 Solutions, LLCl3-solutions.com HQ: Peoria, AZ, United StatesReported employees: 1-10 | Peoria, AZ, United States | 1-10 | Exact match | 5 contacts → |
“L3 Solutions is a full service compliance-based IT audit firm specializing in evaluating financial institution, healthcare, and Microsoft vendor control environments for…” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Sandhurst-Aec, LLCsandhurstaec.com HQ: Falls Church, VA, United StatesReported employees: 1-10 | Falls Church, VA, United States | 1-10 | Exact match | 4 contacts → |
“SandHurst-AEC is an architecture and engineering company that provides cybersecurity services for electronic safety and security of Industrial Control Systems.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Assurancepointassurancepoint.cpa HQ: Atlanta, GA, United StatesReported employees: 1-10 | Atlanta, GA, United States | 1-10 | Exact match | 4 contacts → |
“AssurancePoint is a quality-focused information security audit and compliance advisory firm.” Recorded description excerpt · October 16, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Altavista Instruments & Controlsaic-company.com HQ: Altavista, VA, United StatesReported employees: 51-200 | Altavista, VA, United States | 51-200 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 25 | 3j Industries3j-industries.com HQ: Troy, MI, United StatesReported employees: 1-10 | Troy, MI, United States | 1-10 | Exact match | 3 contacts → |
No recorded description excerpt is available for this public record. | |||||
Showing 25 of 49 company matches
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Industrial control system auditors: dataset insights
October 16, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
49 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 49 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 16, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for industrial control system auditors?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many industrial control system auditors did RevenueBase find based in the United States?
The saved snapshot records 49 matching company records, 940 tracked contacts and 438 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 16, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Cite this list
RevenueBase Data Team. Top 25 industrial control system auditors based in the United States. Snapshot: October 16, 2026. https://revenuebase.ai/companies/industrial-control-system-auditors/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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