Lookalikes · Data refreshed October 2026

25 Foresite Cybersecurity lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 20, 2026 2719 matching companies

Looking for Foresite Cybersecurity lookalikes, Foresite Cybersecurity competitors or Foresite Cybersecurity alternatives? The RevenueBase company graph holds 2719 companies that do what Foresite Cybersecurity does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 2719 matches RevenueBase tracks 79,437 professional contacts, including 35,959 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 Foresite Cybersecurity and ranks them by company size. Data current as of October 20, 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 20, 2026 Match quality audited by blind human judging

Reference company

Foresite Cybersecurity

“As the world becomes more connected, our lives and businesses are more vulnerable.”

51-200Employees

115Contacts tracked

71Verified emails

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The 25 largest Foresite Cybersecurity competitors and alternatives

Ranked by team size

Top 25 of 2719 companies matching Foresite Cybersecurity at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Foresite Cybersecurity (100% = identical). Data refreshed Oct 20, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Palo Alto Networks	Santa Clara, US	10001+	86%	12,133 contacts →
2	Fortinet	Sunnyvale, US	10001+	89%	8,676 contacts →
3	Sophos	Abingdon, GB	5,001-10,000	88%	2,743 contacts →
4	Trend Micro	Yoyogi, JP	5,001-10,000	86%	698 contacts →
5	Thales Cybersecurity Products	Austin, US	1,001-5,000	86%	691 contacts →
6	Imperva	Austin, US	10001+	87%	772 contacts →
7	Trustwave, A Levelblue Company	Chicago, US	501-1,000	88%	319 contacts →
8	Advens	Paris, FR	501-1,000	86%	315 contacts →
9	Withsecure	Helsinki, FI	501-1,000	85%	276 contacts →
10	Paramount Computer Systems	AE	201-500	85%	120 contacts →
11	Securityhq	Gb, GB	501-1,000	87%	283 contacts →
12	Protechmanize	Thane, IN	501-1,000	86%	71 contacts →
13	Safeway	Sao Paulo, BR	201-500	87%	10 contacts →
14	Kudelski Security	Cheseaux, CH	201-500	86%	194 contacts →
15	G Data Cyberdefense	Bochum, DE	501-1,000	88%	165 contacts →
16	DUO Security	Ann Arbor, US	501-1,000	87%	15 contacts →
17	SK Shieldus	KR	5,001-10,000	86%	9 contacts →
18	T Security - Dach	Bonn, DE	1,001-5,000	92%	205 contacts →
19	Total Cyber-Sec	Parques Del Pedregal Cdmx, MX	51-200	86%	28 contacts →
20	bi.zone	Moscow City, RU	1,001-5,000	85%	14 contacts →
21	Sits Group	Wettingen, CH	501-1,000	87%	29 contacts →
22	Oplium	Sao Paulo, BR	201-500	85%	122 contacts →
23	Quorum Cyber	Edinburgh, GB	201-500	87%	166 contacts →
24	Trillium Information Security Systems	Toronto, CA	51-200	89%	74 contacts →
25	CORO	New York, US	201-500	85%	157 contacts →

Showing the 25 largest of 2719 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 Foresite Cybersecurity, 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 Foresite Cybersecurity 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 20, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Foresite Cybersecurity lookalikes?

Foresite Cybersecurity lookalikes are companies that closely resemble what Foresite Cybersecurity 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 Foresite Cybersecurity shown as a percentage.

What companies are similar to Foresite Cybersecurity?

The largest companies similar to Foresite Cybersecurity are Palo Alto Networks, Fortinet, Sophos and Trend Micro. The table above shows the 25 largest of the 2719 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 Foresite Cybersecurity'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 35,959 verified emails and direct dials tracked across all 2719 matched companies.

Who are Foresite Cybersecurity's biggest competitors?

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

What are the best Foresite Cybersecurity alternatives?

The closest Foresite Cybersecurity alternatives are the companies whose own business descriptions match Foresite Cybersecurity'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 20, 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.