Company lists · Data refreshed September 2026

Top 16 Cybersecurity private equity firms based in New York, United States

RevenueBase identified 36 cybersecurity private equity firms headquartered in New York, United States as of September 2026 and tracks 183 professional contacts across them, including 91 with verified work emails. Across the United States, New York is the largest hub for this category.

This list covers cybersecurity private equity firms headquartered in New York, 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 28, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
36Companies
183Contacts tracked
91Verified emails
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The 16 largest cybersecurity private equity firms based in New York, United States

Ranked by team size
Top 16 of 36 cybersecurity private equity firms based in New York, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity private equity firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-20053 contacts →

Strong evidence

“OceanSound Partners is a New York-based private equity firm that pursues control investments in technology and technology-enabled services companies serving aerospace, defense…”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-5027 contacts →

Strong evidence

“Evolution Equity Partners, based in New York City, partners with rapidly growing cybersecurity and AI software companies that safeguard our digital world.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“At SeaGlass Technology we specialize using our proprietary methodology and processes developed from our VCISO team and experienced tech teams approach to managing Hedge Funds IT &…”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceNew York, United StatesHQ checked Sep 28, 202611-508 contacts →

Indirect evidence

“Sayfer, where people and technology meet to overcome web3 and blockchain challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202651-2008 contacts →

Indirect evidence

“HolistiCyber’s mission is to assist corporations in defending themselves from the new phase of evolution in Cyber threats - not only in volume, but in the level of sophistication.”

Source: RevenueBase Database · checked Sep 28, 2026
6Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-107 contacts →

Partial evidence

“Worklyn Partners is a holding company that makes control investments in growth-oriented cybersecurity and IT services companies.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-505 contacts →

Indirect evidence

“InnerCircle Technology Advisors is a New York City based Information Technology firm.”

Source: RevenueBase Database · checked Sep 28, 2026
8Strong evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-505 contacts →

Strong evidence

“Cybersecurity Private Equity Specialist with a National Security Heritage Investment focus is on control transactions in the cyber mid-market Prior portfolios have included…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-504 contacts →

Indirect evidence

“Citanex was founded by a former US Secret Service Electronic Crimes Agent with advisory credentials from Harvard, MIT, and the Department of Justice.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceNew York, United StatesHQ checked Sep 28, 20261-103 contacts →

Strong evidence

“Radius Capital Partners is a private equity sponsor that invests growth capital into innovative companies in the U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
11Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-103 contacts →

Partial evidence

“SecReliant is managed by a seasoned team – with backgrounds in cybersecurity, technology, blockchain enabled technology, and service in the armed forces – that is passionate…”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 202611-503 contacts →

Indirect evidence

“Terranet Ventures Inc.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-102 contacts →

Indirect evidence

“Ben Boissevain founded Ascento Capital in 2017 with the mission to provide sophisticated consulting services to growth companies.”

Source: RevenueBase Database · checked Sep 28, 2026
14Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-102 contacts →

Partial evidence

“WE INVEST IN FREEDOM ENABLING CYBERSECURITY START-UPS.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceNew York, United StatesHQ checked Sep 28, 20261-101 contacts →

Indirect evidence

“The Incendio Group is a boutique cyber security firm that provides an alternative to larger firms with revenue and profit targets, high overhead, and rotating partners, managers…”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceNew York, NY, United StatesHQ checked Sep 28, 20261-101 contacts →

Partial evidence

“At Cyvergence, our mission is to empower organizations by delivering state of the art cybersecurity products and services that fortify your digital ecosystem.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 16 of 36 cybersecurity private equity firms based in New York, United States

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Cybersecurity private equity firms based in New York, United States at a glance

As of Sep 28, 2026
49.7%Verified-email coverage
5.1Average contacts per company
1-10Median size (employees)
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
23
11-50
11
51-200
2

Email recency for this list is measured across the whole United States list rather than for New York, so it is reported there. Company counts and contact totals on this page are exact for New York, over 36 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 cybersecurity private equity firms, 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 New York, United States whose own description of what they do matches “cybersecurity private equity firms”. 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 cybersecurity private equity firms), 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 cybersecurity private equity firms, and records with no verified work email. Companies headquartered outside New York 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, 91 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 28, 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.

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 cybersecurity private equity firms, 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 cybersecurity private equity firms are there based in New York, United States?

RevenueBase identified 36 cybersecurity private equity firms headquartered in New York, 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?

Oceansound Partners, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most cybersecurity private equity firms?

New York leads the United States with 36 headquartered companies, followed by Washington (24) and Austin (21).

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 91 verified decision-maker contacts tracked across these 36 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 28, 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.