Company lists · Data refreshed September 2026
Top 25 Application security advisory services based in the United States
RevenueBase identified 2,946 application security advisory services headquartered in the United States as of September 2026 and tracks 32,624 professional contacts across them, including 13,874 with verified work emails. New York is the largest hub.
This list covers application security advisory services 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 21, 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.
The 25 largest application security advisory services based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,222 contacts → | ||||
Partial 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 21, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,042 contacts → | ||||
Partial evidence “Checkmarx helps the world’s largest enterprises get ahead of application risk without slowing down development.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 4 | 874 contacts → | ||||
Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 5 | 844 contacts → | ||||
Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 6 | 629 contacts → | ||||
Partial evidence “Telos Corporation (NASDAQ: TLS) empowers and protects the world’s most security-conscious organizations with efficient, adaptable, and secure solutions that safeguard people…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 7 | 552 contacts → | ||||
Partial evidence “Veracode is a global leader in Application Risk Management for the AI era.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 8 | 473 contacts → | ||||
Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 9 | 365 contacts → | ||||
Indirect evidence “Welcome to IBN Technologies, LLC, Your Trusted Partner in Cybersecurity, Cloud, and Finance Solutions With 26+ years of expertise, IBN Technologies leads in delivering integrated…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 10 | 329 contacts → | ||||
Indirect evidence “UpGuard is the only platform that unifies cyber risk management across the vendor supply chain, attack surface, and human workforce.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 11 | 272 contacts → | ||||
Partial evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 12 | 268 contacts → | ||||
Indirect evidence “We stand at the forefront of leadership, insight, and guidance in a world marked by complexity and uncertainty.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 13 | 255 contacts → | ||||
Indirect evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 14 | 234 contacts → | ||||
Strong evidence “Protect your business-critical applications by mitigating threats and reducing risk with Obsidian, the first truly comprehensive security solution for SaaS.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 15 | 234 contacts → | ||||
Indirect evidence “SES is a cutting edge provider of IT consulting services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 16 | 220 contacts → | ||||
Indirect evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 17 | 209 contacts → | ||||
Indirect evidence “At Sayers, we offer expert guidance to help organizations tackle cyber, cloud, and IT infrastructure challenges.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 18 | 204 contacts → | ||||
Indirect evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 19 | 199 contacts → | ||||
Indirect evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 20 | 186 contacts → | ||||
Indirect evidence “Kualitatem empowers businesses to deliver quality software.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 21, 2026Thanks. The Data Team will review it. | |||||
| 22 | 178 contacts → | ||||
Partial evidence “CANDA Solutions is a leading risk management software and services provider specializing serving National Security enterprises who must meet the latest government security…” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 23 | 172 contacts → | ||||
Indirect evidence “Catalyst is a digital consulting firm headquartered in Silicon Valley, with operations in over 15 countries across EMEA.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 24 | 170 contacts → | ||||
Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
| 25 | 168 contacts → | ||||
Partial evidence “Bridgesoft is a leading provider of technology, consulting and information security management solutions.” Source: RevenueBase Database · checked Sep 21, 2026Thanks. The Data Team will review it. | |||||
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: application security advisory services. 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 application security advisory services.
- Partial evidence
- Its own public description names part of application security advisory services, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name application security advisory services. 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 2,946 application security advisory services based in the United States
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Application security advisory services based in the United States at a glance
As of Sep 21, 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 2,946 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 application security advisory services, 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 “application security advisory services”. 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 application security advisory services), 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 application security advisory services, 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, 13,874 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 21, 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.
Application security advisory services by metro
- Application security advisory services in New York88
- Application security advisory services in Atlanta62
- Application security advisory services in Austin59
- Application security advisory services in Houston55
- Application security advisory services in Washington53
- Application security advisory services in San Francisco49
- Application security advisory services in Tampa47
- Application security advisory services in Chicago46
- Application security advisory services in Dallas43
- Application security advisory services in Los Angeles40
- Application security advisory services in Miami36
- Application security advisory services in Seattle33
- Application security advisory services in San Diego32
- Application security advisory services in Arlington31
- Application security advisory services in Denver30
- Application security advisory services in Alexandria26
- Application security advisory services in Charlotte25
- Application security advisory services in Reston25
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 application security advisory services, 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 application security advisory services are there based in the United States?
RevenueBase identified 2,946 application security advisory services 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 application security advisory services?
New York leads with 88 headquartered companies, followed by Atlanta (62) and Austin (59).
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 13,874 verified decision-maker contacts tracked across these 2,946 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 21, 2026.
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Application security advisory services by geography
- Application security advisory services based in Brisbane, Australia
- Application security advisory services based in Melbourne, Australia
- Application security advisory services based in Sydney, Australia
- Application security advisory services based in Calgary, Canada
- Application security advisory services based in Montreal, Canada
- Application security advisory services based in Ottawa, Canada
- Application security advisory services based in Toronto, Canada
- Application security advisory services based in Ahmedabad, India
- Application security advisory services based in Bangalore, India
- Application security advisory services based in Bengaluru, India
- Application security advisory services based in Chennai, India
- Application security advisory services based in Hyderabad, India
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.
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