Lookalikes · Data refreshed October 2026

25 QOS Technology lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 19, 2026 1055 matching companies

Looking for QOS Technology lookalikes, QOS Technology competitors or QOS Technology alternatives? The RevenueBase company graph holds 1055 companies that do what QOS Technology does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 1055 matches RevenueBase tracks 95,280 professional contacts, including 46,479 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 QOS Technology and ranks them by company size. Data current as of October 19, 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 Oct 19, 2026 Match quality audited by blind human judging

Reference company

QOS Technology

“QOS Technology is a company of young, vibrant, and geeky folks with maverick idiosyncrasies who continues to stay ahead of the latest innovations in security, developing robust…”

51-200Employees

98Contacts tracked

44Verified emails

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The 25 largest QOS Technology competitors and alternatives

Ranked by team size

Top 25 of 1055 companies matching QOS Technology at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to QOS Technology (100% = identical). Data refreshed Oct 19, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Palo Alto Networks	Santa Clara, US	10001+	89%	12,133 contacts →
2	Fortinet	Sunnyvale, US	10001+	89%	8,676 contacts →
3	Crowdstrike	Remote, US	5,001-10,000	87%	7,720 contacts →
4	Sophos	Abingdon, GB	5,001-10,000	86%	2,743 contacts →
5	Trellix	Plano, US	1,001-5,000	87%	1,605 contacts →
6	Sentinelone	Mountain View, US	1,001-5,000	89%	1,927 contacts →
7	Bitdefender	Bucuresti, RO	1,001-5,000	88%	1,256 contacts →
8	Trend Micro	Yoyogi, JP	5,001-10,000	90%	698 contacts →
9	Thales Cybersecurity Products	Austin, US	1,001-5,000	86%	691 contacts →
10	Imperva	Austin, US	10001+	87%	772 contacts →
11	SISA	Bengaluru, IN	201-500	86%	260 contacts →
12	Trustwave, A Levelblue Company	Chicago, US	501-1,000	87%	319 contacts →
13	Vectra AI	San Jose, US	501-1,000	86%	404 contacts →
14	SSH Communications Security	Helsinki, FI	n/a	88%	107 contacts →
15	Ahnlab, INC	Seongnam-Si Gyeonggi-Dobundang-Gu, KR	1,001-5,000	88%	186 contacts →
16	Advens	Paris, FR	501-1,000	85%	315 contacts →
17	horizon3.ai	San Francisco, US	201-500	86%	320 contacts →
18	Securityhq	Gb, GB	501-1,000	86%	283 contacts →
19	G Data Cyberdefense	Bochum, DE	501-1,000	86%	165 contacts →
20	SK Shieldus	KR	5,001-10,000	87%	9 contacts →
21	RED Canary, A Zscaler Company	Denver, US	201-500	88%	204 contacts →
22	Infopercept	IN	201-500	89%	164 contacts →
23	Cyberani By Aramco Digital	Riyadh, SA	201-500	86%	50 contacts →
24	Quorum Cyber	Edinburgh, GB	201-500	90%	166 contacts →
25	CYBLE	Alpharetta, US	201-500	87%	119 contacts →

Showing the 25 largest of 1055 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 QOS Technology, 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 QOS Technology 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 October 19, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are QOS Technology lookalikes?

QOS Technology lookalikes are companies that closely resemble what QOS Technology 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 QOS Technology shown as a percentage.

What companies are similar to QOS Technology?

The largest companies similar to QOS Technology are Palo Alto Networks, Fortinet, Crowdstrike and Sophos. The table above shows the 25 largest of the 1055 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 QOS Technology'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 46,479 verified emails and direct dials tracked across all 1055 matched companies.

Who are QOS Technology's biggest competitors?

The largest QOS Technology competitors by measured business-description similarity are Palo Alto Networks, Fortinet, Crowdstrike and Sophos. Every company here does what QOS Technology does at 85%+ similarity, ranked by team size.

What are the best QOS Technology alternatives?

The closest QOS Technology alternatives are the companies whose own business descriptions match QOS Technology'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 October 19, 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.