Lookalikes · Data refreshed September 2026

25 Qualys lookalikes

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 121 matching companies

Looking for Qualys lookalikes, Qualys competitors or Qualys alternatives? The RevenueBase company graph holds 121 companies that do what Qualys does, matched at 85%+ measured description similarity (RevenueBase, September 2026). The 25 largest are ranked below by team size; across all 121 matches RevenueBase tracks 2,170 professional contacts, including 777 with verified work emails.

Similarity is measured on what companies actually do, from their business descriptions rather than industry codes, and is shown per row as a percentage. This page keeps only companies at 85%+ measured similarity to Qualys and ranks them by company size. Data current as of September 26, 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.

How to read this list Similarity shown on every row Refreshed Sep 26, 2026 Match quality audited by blind human judging

Reference company

Qualys

“Qualys, Inc.(NASDAQ: QLYS) is a leading provider of disruptive cloud-based security, compliance and IT solutions with more than subscription customers worldwide, including a…”

1,001-5,000Employees

3,058Contacts tracked

2,169Verified emails

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The 25 largest Qualys competitors and alternatives

Ranked by team size

Top 25 of 121 companies matching Qualys at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Qualys (100% = identical). Data refreshed Sep 26, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Orca Security	Portland, US	201-500	88%	234 contacts →
2	Hennge	Jing, JP	201-500	86%	109 contacts →
3	Appomni	Bay, US	201-500	86%	136 contacts →
4	Secpod	Redwood City, US	51-200	87%	53 contacts →
5	Techowl	Ahmedabad, IN	51-200	85%	4 contacts →
6	Cywarden INC	Dublin, IN	201-500	85%	7 contacts →
7	Castellum Labs	Hyderabad, IN	51-200	86%	27 contacts →
8	Cybral	Miami, US	51-200	88%	28 contacts →
9	I DO	Rio De Janeiro, BR	11-50	86%	2 contacts →
10	Secqureone	San Jose, US	51-200	88%	6 contacts →
11	Cloudbase, INC	Jing, JP	11-50	87%	16 contacts →
12	Xiotz Private Limited	Dubai, AE	11-50	85%	4 contacts →
13	Vambrace Cybersecurity	Leeds, GB	11-50	85%	11 contacts →
14	Prowler	Portland, US	11-50	89%	13 contacts →
15	Jacobian Engineering INC	Alameda, US	11-50	85%	10 contacts →
16	Armourzero	Kuala Lumpur, MY	11-50	85%	3 contacts →
17	Cloudnosys	Roswell, US	11-50	87%	6 contacts →
18	Cavirin Systems, INC	Santa Clara, US	51-200	87%	11 contacts →
19	Runecast Solutions	London, GB	51-200	87%	4 contacts →
20	Codeeye	Toronto, CA	11-50	86%	4 contacts →
21	cy5.io	Gurgaon, IN	1-10	89%	7 contacts →
22	Threatsview	Singapore, SG	11-50	86%	9 contacts →
23	Tatum Security	Gangnamgu, KR	11-50	86%	1 contacts →
24	kikimora.io	n/a	1-10	85%	2 contacts →
25	Rainforest Technologies	Wilmington, US	51-200	87%	6 contacts →

Showing the 25 largest of 121 similar companies

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How similarity works

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.
Matching: Companies are matched on what they actually do, as described in their own business descriptions, never on shared industry codes. The list keeps only matches at 85%+ measured similarity to Qualys, and match quality is audited by blind human judging. Read the full methodology.
Ranking: Team size, largest first, among the matched companies: companies are ordered by the number of professionals RevenueBase tracks at each one. Each row also shows its measured similarity to Qualys as a percentage.
Verification: Contact records re-verify on a rolling cadence rather than being scraped once and left to decay; each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 26, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Qualys lookalikes?

Qualys lookalikes are companies that closely resemble what Qualys does and sells, based on each company's own business description. The table above ranks the closest matches by company size, with each company's similarity to Qualys shown as a percentage.

What companies are similar to Qualys?

The largest companies similar to Qualys are Orca Security, Hennge, Appomni and Secpod. The table above shows the 25 largest of the 121 matched companies, with each row's similarity shown as a percentage.

How is similarity measured?

Similarity scores how closely a company's business, as described in its own words, matches Qualys's, shown as a percentage (100% = an identical description). The list keeps companies at 85% or above and ranks them by team size.

How do I get contacts at these companies?

A free RevenueBase account lets you run this exact search and work the top matches, verified emails and direct dials included. Upgrading unlocks the 777 verified emails and direct dials tracked across all 121 matched companies.

Who are Qualys's biggest competitors?

The largest Qualys competitors by measured business-description similarity are Orca Security, Hennge, Appomni and Secpod. Every company here does what Qualys does at 85%+ similarity, ranked by team size.

What are the best Qualys alternatives?

The closest Qualys alternatives are the companies whose own business descriptions match Qualys's most closely, shown above with each one's similarity as a percentage and ranked by team size.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 26, 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 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.