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65 leading cybersecurity companies in New York

Tamtam tracks 65 cybersecurity companies headquartered in New York. This list ranks all of them by number of employees on LinkedIn, led by Kyndryl, Datadog and Ziff Davis. Their median headcount is 234. Half of them were founded in 2015 or later.

๐Ÿ‡บ๐Ÿ‡ธ New York65 companiesUpdated Oct 24, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Kyndrylkyndryl.com

A global leader in designing, running, and managing advanced technology infrastructure, focusing on excellence, innovation, and advancing vital systems for human progress

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 90,000 2021
2
Datadogdatadoghq.com

Provider of essential monitoring platform for cloud applications, consolidating data from various sources to ensure optimal performance and user experience for DevOps teams

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 10,888 2010
3
Ziff Davisziffdavis.com

Digital media and internet company with brands in technology, shopping, gaming, entertainment, health, connectivity, cybersecurity, and marketing technology.

Technology, Information and Media ๐Ÿ‡บ๐Ÿ‡ธ New York 6,688 n/a
4
Presidiopresidio.com

A technology and innovation-driven company with expertise in automation, security, networking, digital transformation, and cloud computing, providing custom applications and managed services globally

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 4,355 n/a
5
Wizwiz.io

Identifies, removes critical risks across AWS, Azure, GCP, OCI, Alibaba Cloud, and Kubernetes for building faster and more securely.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 3,147 2020
6
CLEARclearme.com

Security identity platform enabling safer, easier experiences in airports, stadiums, healthcare, travel, and financial services with trusted solutions.

Consumer Services ๐Ÿ‡บ๐Ÿ‡ธ New York 2,936 2010
7
Cyeracyera.com

Enables global enterprises to adopt AI at scale by securing the data fueling it, providing precise visibility and intelligent controls for data everywhere.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 1,626 2021
8
OffSecoffsec.com

The company empowers individuals worldwide to combat cyber threats by providing essential cybersecurity skills and resources for a secure future

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 1,142 2006
9
Fireblocksfireblocks.com

Provides scalable, secure digital asset infrastructure, streamlining payments, custody, tokenization, and trading for institutions across 100 blockchains, unlocking new use cases.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 970 n/a
10
Dataminrdataminr.com

Utilizing real-time AI and public data, this company provides clients with actionable alerts to detect high-impact events and emerging risks globally

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ New York 891 2009
11
Feedzaifeedzai.com

Powers trust in global finance with an AI-native financial crime prevention platform, protecting moments where money matters most at massive scale.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 869 2011
12
Clarotyclaroty.com

Redefines cyber-physical systems protection with an industry-centric platform for mission-critical infrastructure, providing asset visibility, network protection, secure access, and threat detection.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 861 2015
13
Axoniusaxonius.com

Provides asset intelligence platform for unified security operations and exposure management. Offers a single source of truth for assets and exposures.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 723 2017
14
Forterforter.com

The company provides a Trust Platform for digital commerce, helping enterprises increase revenue and reduce fraud by making real-time decisions about digital interactions

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 706 2013
15
Abacusabacustechnology.com

Global IT and cybersecurity managed services provider specializing in integrated technology and security solutions for financial services firms.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 649 2008
16
BigIDbigid.com

Connecting data and AI for security, privacy, compliance, and governance, securing entire data landscapes across multicloud, hybrid, SaaS, and on-prem.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 627 2016
17
BlueVoyantbluevoyant.com

Offers a cloud-native platform integrating MDR, TPRM, DRP for real-time threat monitoring across networks, endpoints, and supply chains, utilizing AI and human expertise.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 624 2017
18
SecurityScorecardsecurityscorecard.com

Provides patented cybersecurity rating technology for risk management, third-party oversight, board reporting, and cyber insurance underwriting globally.

Data Security Software Products ๐Ÿ‡บ๐Ÿ‡ธ New York 624 2013
19
Privado AIprivado.ai

Privado helps enterprises prevent privacy breaches and fines by scanning code, monitoring data flow, creating data maps, and alerting on potential breaches

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ New York 604 2020
20
RFArfa.com

Provider of secure, customized IT, cloud, and cybersecurity solutions for financial services and alternative investment sectors worldwide.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 603 1989
21
Proveprove.com

Prove offers phone-centric identity solutions to businesses, helping them verify customers securely, reduce fraud, and enhance consumer privacy worldwide

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 601 2008
22
Alignalign.com

A global provider of technology infrastructure solutions and managed IT services, specializing in data center deployment and project management

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 572 1986
23
Veriffveriff.com

Leading global identity verification partner for top digital companies in fintech, crypto, gaming, and mobility sectors Offering advanced technology and worldwide ID coverage

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 542 2015
24
BioCatchbiocatch.com

Prevents financial crime. Recognizes patterns in human behavior. Collects anonymized data points. Machine learning models detect criminal activity. Protects banking users.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 457 2011
25
Torqtorq.io

Combines AI-powered insights and automation for Security Operations Centers, streamlining threat triage, investigation, and response from alert to resolution.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 454 2020
26
Alloyalloy.com

Alloy provides an end-to-end identity risk management platform for companies offering financial products, helping manage fraud, credit, and compliance risk

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ New York 416 2015
27
Dashlanedashlane.com

Provides complete credential security, protecting businesses against human risk. Its intelligent Omnix platform unifies credential protection and password management for employees.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 314 2009
28
Atlas Technicaatlastechnica.com

A Managed Service Provider specializing in IT Support and CyberSecurity services for the Alternative Investment industry, delivering innovative solutions and outstanding client-centered service

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 303 2016
29
VSS, A Converge Companypellera.com

IT solutions and services provider leveraging people, process, and technology to transform businesses, offering sustainable technologies, IT expertise, and project execution for clients

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 270 1990
30
CHEQcheq.ai

Protects customer journeys by distinguishing legitimate users from bad actors including humans, agents, and bots for 15,000 brands.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 261 2016
31
ATSGxtium.com

Global leader in digital transformation solutions, offering secure digital infrastructure, workplace collaboration, and customer experience services with an Ai2 automation platform for tangible business value

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 260 1994
32
Filigranfiligran.io

A cybertech company founded in 2022, specializing in eXtended Threat Management (XTM) solutions including threat intelligence, breach simulation, and cyber risk management for organizations worldwide

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 256 2022
33
Thoropassthoropass.com

Platform combining audit, assessment, and compliance automation to streamline SOC, PCI DSS, ISO 27001, HITRUST, HIPAA audits efficiently.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 234 2019
34
Cymulatecymulate.com

Provides a SaaS platform for security professionals to continuously challenge, validate, and optimize cybersecurity posture against evolving threats and attack frameworks.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 225 2016
35
DataDomedatadome.co

DataDome specializes in bot and online fraud protection using machine learning to analyze signals and provide real-time threat detection for high-profile brands globally

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 221 2015
36
Axioaxio.com

Leader in SaaS cyber management software, empowering security leaders to optimize security programs and quantify risk financially. Aligns leaders and Boards on critical corporate risks.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 200 2013
37
Microblinkmicroblink.com

Global leader in AI-powered computer vision software focused on digital identity and commerce, providing SDKs and APIs for data extraction and automation

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 177 2013
38
Zafran Securityzafran.io

Innovative Risk Mitigation platform using security controls to protect organizations during critical exploitation windows, automating mitigations and reducing threat exposure at scale

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 175 n/a
39
Recoreco.ai

Reco AI is a SaaS security platform focused on identity protection, access control, and risk prevention, using advanced analytics and partnerships for comprehensive security

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 174 2020
40
Optima Partnersoptima-partners.com

Advising financial institutions on global compliance, regulatory requirements, cybersecurity, and ensuring adherence to laws and rules worldwide.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ New York 153 2014
41
Cycodecycode.com

Leader in Agentic Development Security, securing AI development from prompt to runtime. Unifying control, context, and autonomy in a single platform, continuously identifying risk.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 150 2019
42
Vicariusvicarius.io

Vicarius provides a comprehensive vulnerability remediation platform to help IT teams protect critical applications and assets against software exploitation

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 111 2016
43
Beyond Identitybeyondidentity.com

Secures human, machine, AI identities. Prevents unauthorized access with hardware-bound credentials, eliminating passwords, stopping credential attacks, and ensuring continuous device trust.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 90 2020
44
Intezerintezer.com

Automated platform for continuous alert triage, faster incident response, and reduction of noise and false positives in security operations.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 89 2016
45
Strikestrike.sh

Platform connecting ethical hackers with companies for efficient penetration testing, real-time vulnerability monitoring, and automated retesting and fixing.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 72 n/a
46
OutThinkoutthink.io

Cybersecurity human risk management platform enhancing security awareness training for large organizations globally, focusing on identifying, measuring, and changing behavior

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 67 2015
47
Sonrai Securitysonraisecurity.com

Enterprise cloud security platform combining workload, platform, identity, and data security with automation and advisors to mitigate risks in public cloud environments

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 63 2017
48
ReasonLabsreasonlabs.com

Revolutionizing consumer cybersecurity with advanced AI-powered protection. Against scams, fraud, identity theft. Monitoring messages, dark web scans, real-time alerts. Phishing, suspicious activity, unauthorized access.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 61 2016
49
Rhymetecrhymetec.com

Delivers premium cybersecurity and data privacy solutions for modern SaaS businesses, combining human expertise with innovative technology for growth.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 55 2015
50
RemoteDeskremotedesk.com

A leading remote workforce management solution using facial recognition technology to streamline, secure, and increase productivity while ensuring compliance with regulations

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 51 2018
51
Cloudawarecloudaware.com

This company offers real-time multi-cloud CMDB, vulnerability scanning, intrusion detection, patch management, cost management, compliance engine, change management, unified monitoring, usage analytics, and backups

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 51 2007
52
Chelsea Technologieschelsea-tech.com

A dynamic Managed IT Services firm specializing in providing design, hosting, and support to the global financial industry for over 25 years

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 49 1990
53
Veridiumveridiumid.com

Authentication technology provider ensuring secure access by verifying users in real-time without compromising user experience, security, or privacy in a zero-trust environment

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 47 2016
54
Argent Softwareargent.com

Provider of automation, performance management, and network monitoring products for IT departments worldwide Specializing in monitoring data center applications, databases, security, and more

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 47 1991
55
Evervaultevervault.com

A Dublin-based company simplifying data security and compliance for engineering teams with easy-to-use solutions, allowing them to focus on high-impact work

Software Development ๐Ÿ‡บ๐Ÿ‡ธ New York 43 2019
56
DoControldocontrol.io

DoControl offers a SaaS Security Platform focusing on modernizing CASB and DLP to secure SaaS applications, helping organizations mitigate insider risk and data exfiltration

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 41 2020
57
Backuptabackupta.com

Backuptaยฎ offers secure backup and fast recovery for CIAM, WIAM, and Okta configurations, with real-time alerts and synchronization between preview and production configurations

Data Security Software Products ๐Ÿ‡บ๐Ÿ‡ธ New York 33 2021
58
Turbotturbot.com

Provides cloud intelligence and automated security platforms for DevOps teams, offering guardrails, cloud intelligence, dashboards, workflow tools, and automated security solutions

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 31 2014
59
IronVestironvest.com

A biometric fraud prevention infrastructure & security app ensuring only authorized users can access & transact, focused on preventing fraud

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ New York 27 2022
60
DAG Techdagtech.com

IT services provider specializing in business intelligence, advanced products, and IT consulting to help clients stay ahead in the ever-changing tech field

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 19 1999
61
ThreatKeythreatkey.com

A leading SaaS and cloud security provider offering advanced security posture management solutions tailored to businesses of all sizes, specializing in proactive threat identification and mitigation

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 13 2020
62
Konvukonvu.com

Innovative founders working to revolutionize the security industry with humility and ambition Join us on our journey!

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ New York 12 2024
63
ACKURACYackuracy.com

Cutting-edge penetration testing and red team services providing actionable security insights and vulnerability eradication to protect enterprises in a complex digital landscape.

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ New York 3 2024
64
Blackstone Law Group LLPblackstone-law.com

A boutique firm specializing in information security, litigation, appellate practice, global compliance, and internet governance for businesses worldwide

Law Practice ๐Ÿ‡บ๐Ÿ‡ธ New York 2 2015
65
Zero Vaults Inc.zerovaults.com

Zero Vaults ensures secure data storage and access control, allowing only authorized code or applications to use critical information, maintaining privacy and security

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ New York 1 n/a

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How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Oct 24, 2026.

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