Company lists · Data refreshed September 2026
Top 25 Network security consultants based in Chicago, United States
RevenueBase identified 96 network security consultants headquartered in Chicago, United States as of September 2026 and tracks 3,086 professional contacts across them, including 1,730 with verified work emails. New York is the largest hub.
This list covers network security consultants headquartered in Chicago, 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 network security consultants based in Chicago, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 947 | ||||
“Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 874 | ||||
“Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 628 | ||||
“VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 88 | ||||
“CrossRealms International is a Cybersecurity-First company operating across the United States, Europe, MENA region, and Asia.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | EntaraPartial evidence | 69 | |||
“Experiencing a security incident?” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 59 | ||||
“Evolve Security is an offensive cybersecurity solution, delivering continuous penetration testing with the optimal blend of AI automation and human expertise, providing peace of…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | SecurionPartial evidence | 29 | |||
“SECURION was formed by industry problem-solving veterans that came together to bring their vision of a completely security focused, vendor agnostic, secure by design approach.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 27 | ||||
“In today’s digitally connected world, cyber security plays a crucial role.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Pearl Consulting GroupIndirect evidence | 22 | |||
“Pearl Consulting Group is a global IT consulting firm dedicated to helping businesses navigate the complexities of technology with confidence.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | Ravenswood Technology GroupIndirect evidence | 21 | |||
“At Ravenswood Technology Group, we don’t just offer our customers cybersecurity solutions – we deliver value and expertise you can rely on as needs and risks change.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 10 | ||||
“Cyber threats are relentless, and security teams are overwhelmed.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 10 | ||||
“ArxNimbus brings visibility to every organization’s cybersecurity program, radically advancing how businesses understand and optimize for real resilience.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 9 | ||||
“HTA Technology Security Consulting (HTA) is a certified Woman-Owned, Small, Disadvantaged, Minority business with offices in Chicago, IL, and the Washington DC corridor.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | 9 | ||||
“Data Defenders is at the forefront of Managed Cybersecurity Operations Providers (MCOP), specializing in safeguarding municipalities through our exclusive Regional Security…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 | ||||
“DataGuard Cybersecurity Without The Complexity DataGuard uses state-of-the-art industry resources to implement a multi-layer defense for each client’s unique cyber security needs.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 | ||||
“At Cyber Bark, we bring 100 years of collective experience to the table, serving businesses across the US from our base in Illinois.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 7 | ||||
“JMA Consulting, LLC brings secure IT solutions to commercial clients in multiple industries nationwide.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | 7 | ||||
“Amol Solutions strives to be a leader in cybersecurity services for organizations of all sizes.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 6 | ||||
“Clairos is a cybersecurity company that helps organizations build stronger, more manageable security programs through a practical, tailored approach.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 6 | ||||
“Not auditors but real hackers.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 5 | ||||
“Welcome to Network Aegis!” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | 5 | ||||
“We operationalize, economize, and secure enterprise organizations by understanding their business outcomes and connecting them with proven, venture-backed startups recommended by…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | Yayo InteractivePartial evidence | 5 | |||
“Yayo Interactive is a technology and digital solutions firm helping organizations modernize systems, strengthen security, and improve business performance through scalable…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | TeamwerksIndirect evidence | 5 | |||
“TeamWerks is an IT company based in the United States.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 4 | ||||
“ClearLP is a woman owned business specializing in digital security and network technology.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 25 of 96 network security consultants based in Chicago, United States
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Network security consultants based in Chicago, United States at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 96 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 network security consultants, 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 Chicago, United States whose own description of what they do matches “network security consultants”. 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 network security consultants, and records with no verified work email. Companies headquartered outside Chicago 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, 1,730 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.
Network security consultants by metro in the United States
- Network security consultants in New York170
- Network security consultants in Houston116
- Network security consultants in Atlanta109
- Network security consultants in Washington105
- Network security consultants in Dallas100
- Network security consultants in Austin97
- Network security consultants in Chicago96
- Network security consultants in Miami87
- Network security consultants in Tampa79
- Network security consultants in San Francisco66
- Network security consultants in San Diego63
- Network security consultants in Los Angeles57
- Network security consultants in Charlotte55
- Network security consultants in Boston54
- Network security consultants in Arlington53
- Network security consultants in Denver51
- Network security consultants in Columbia49
- Network security consultants in Seattle43
- Network security consultants in Alexandria41
- Network security consultants in Las Vegas40
- Network security consultants in Phoenix40
- Network security consultants in Reston40
- Network security consultants in San Antonio40
- Network security consultants in Orlando39
- Network security consultants in Raleigh39
- Network security consultants in Mclean37
- Network security consultants in Sheridan36
- Network security consultants in Baltimore35
- Network security consultants in Ashburn34
- Network security consultants in Fairfax32
- Network security consultants in Wilmington30
- Network security consultants in Columbus29
- Network security consultants in San Jose29
- Network security consultants in Scottsdale28
- Network security consultants in Huntsville27
- Network security consultants in Minneapolis27
- Network security consultants in Plano27
- Network security consultants in Colorado Springs25
- Network security consultants in Dover25
- Network security consultants in Herndon25
- Network security consultants in Portland25
Frequently asked
How many network security consultants are there based in Chicago, United States?
RevenueBase identified 96 network security consultants headquartered in Chicago, 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?
Coalfire, headquartered in Chicago, tops this list with the largest team on record.
Which city has the most network security consultants?
New York leads with 170 headquartered companies, followed by Houston (116) and Atlanta (109).
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 1,730 verified decision-maker contacts tracked across these 96 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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