| # | Company | Employees |
|---|---|---|
| 1 | 335,625 | |
| 2 |
Kyndrylkyndryl.com
A global leader in designing, running, and managing advanced technology infrastructure, focusing on excellence, innovation, and advancing vital systems for human progress |
90,000 |
| 3 |
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 |
10,888 |
| 4 |
Ziff Davisziffdavis.com
Digital media and internet company with brands in technology, shopping, gaming, entertainment, health, connectivity, cybersecurity, and marketing technology. |
6,688 |
| 5 |
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 |
4,355 |
| 6 |
Entrustentrust.com
Provides identity-centric security solutions, protecting people, devices, data. Fights fraud, cyber threats, secures identity lifecycle, ensures transaction confidence. Global presence, 150 countries. |
3,755 |
| 7 |
Westcon-Comstorwestconcomstor.com
Global technology distributor connecting leading IT vendors with technology resellers worldwide, delivering business value and driving success through industry insight and distribution experience |
3,263 |
| 8 | 3,147 | |
| 9 |
CLEARclearme.com
Security identity platform enabling safer, easier experiences in airports, stadiums, healthcare, travel, and financial services with trusted solutions. |
2,936 |
| 10 |
NYS Office of Information Technology Servicesits.ny.gov
Transforming government services in New York State, focusing on innovation, efficiency, and competitiveness through technology and a culture of creativity |
2,611 |
| 11 |
PKF O'Connor Daviespkfod.com
Leading accounting, tax, and advisory firm serving domestic and international clients with a focus on delivering high value, expertise, and service |
1,718 |
| 12 | 1,626 | |
| 13 |
OffSecoffsec.com
The company empowers individuals worldwide to combat cyber threats by providing essential cybersecurity skills and resources for a secure future |
1,142 |
| 14 |
Fireblocksfireblocks.com
Provides scalable, secure digital asset infrastructure, streamlining payments, custody, tokenization, and trading for institutions across 100 blockchains, unlocking new use cases. |
970 |
| 15 |
DCI
Providing technology and cybersecurity solutions to the alternative assets community since 1999 |
941 |
| 16 |
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 |
891 |
| 17 |
Feedzaifeedzai.com
Powers trust in global finance with an AI-native financial crime prevention platform, protecting moments where money matters most at massive scale. |
869 |
| 18 |
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. |
861 |
| 19 |
Axoniusaxonius.com
Provides asset intelligence platform for unified security operations and exposure management. Offers a single source of truth for assets and exposures. |
723 |
| 20 |
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 |
706 |
| 21 |
Abacusabacustechnology.com
Global IT and cybersecurity managed services provider specializing in integrated technology and security solutions for financial services firms. |
649 |
| 22 | 627 | |
| 23 |
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. |
624 |
| 24 |
SecurityScorecardsecurityscorecard.com
Provides patented cybersecurity rating technology for risk management, third-party oversight, board reporting, and cyber insurance underwriting globally. |
624 |
| 25 |
CCScustomonline.com
Providing reliable technology solutions including cybersecurity, managed services, cloud, software, and network management for diverse US organizations. |
615 |
| 26 |
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 |
604 |
| 27 | 603 | |
| 28 | 601 | |
| 29 | 572 | |
| 30 |
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 |
542 |
| 31 |
BioCatchbiocatch.com
Prevents financial crime. Recognizes patterns in human behavior. Collects anonymized data points. Machine learning models detect criminal activity. Protects banking users. |
457 |
| 32 | 454 | |
| 33 | 416 | |
| 34 |
Dashlanedashlane.com
Provides complete credential security, protecting businesses against human risk. Its intelligent Omnix platform unifies credential protection and password management for employees. |
314 |
| 35 |
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 |
303 |
| 36 |
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 |
270 |
| 37 |
Avalonteamavalon.com
Specializing in litigation support, secure print and mail, cybersecurity, and managed office services to help businesses succeed through expert solutions and exceptional customer service |
268 |
| 38 | 261 | |
| 39 | 260 | |
| 40 |
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 |
256 |
| 41 |
Thoropassthoropass.com
Platform combining audit, assessment, and compliance automation to streamline SOC, PCI DSS, ISO 27001, HITRUST, HIPAA audits efficiently. |
234 |
| 42 |
Cymulatecymulate.com
Provides a SaaS platform for security professionals to continuously challenge, validate, and optimize cybersecurity posture against evolving threats and attack frameworks. |
225 |
| 43 |
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 |
221 |
| 44 |
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 |
177 |
| 45 |
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 |
175 |
| 46 | 174 | |
| 47 |
Optima Partnersoptima-partners.com
Advising financial institutions on global compliance, regulatory requirements, cybersecurity, and ensuring adherence to laws and rules worldwide. |
153 |
| 48 |
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. |
150 |
| 49 |
Vicariusvicarius.io
Vicarius provides a comprehensive vulnerability remediation platform to help IT teams protect critical applications and assets against software exploitation |
111 |
| 50 |
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. |
90 |
| 51 |
Intezerintezer.com
Automated platform for continuous alert triage, faster incident response, and reduction of noise and false positives in security operations. |
89 |
| 52 | 72 | |
| 53 |
OutThinkoutthink.io
Cybersecurity human risk management platform enhancing security awareness training for large organizations globally, focusing on identifying, measuring, and changing behavior |
67 |
| 54 |
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 |
63 |
| 55 |
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. |
61 |
| 56 |
Rhymetecrhymetec.com
Delivers premium cybersecurity and data privacy solutions for modern SaaS businesses, combining human expertise with innovative technology for growth. |
55 |
| 57 |
Artilus, Incartilus.net
A full-service IT firm specializing in designing and managing efficient networks, offering Cloud Solutions, IP Telephony, and focusing on client relationships |
54 |
| 58 |
Delta Computer Groupserviceexpress.com
An integrated technology company founded in 1990, offering customized IT solutions globally with expertise in cybersecurity, data management, hardware maintenance, retail solutions, and more |
53 |
| 59 |
RemoteDeskremotedesk.com
A leading remote workforce management solution using facial recognition technology to streamline, secure, and increase productivity while ensuring compliance with regulations |
51 |
| 60 |
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 |
51 |
| 61 |
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 |
49 |
| 62 |
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 |
47 |
| 63 |
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 |
47 |
| 64 |
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 |
43 |
| 65 |
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 |
41 |
| 66 |
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 |
33 |
| 67 |
Turbotturbot.com
Provides cloud intelligence and automated security platforms for DevOps teams, offering guardrails, cloud intelligence, dashboards, workflow tools, and automated security solutions |
31 |
| 68 |
IronVestironvest.com
A biometric fraud prevention infrastructure & security app ensuring only authorized users can access & transact, focused on preventing fraud |
27 |
| 69 |
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 |
19 |
| 70 |
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 |
13 |
| 71 | 12 | |
| 72 |
MEI Technology
A technology company providing innovative services in engineering, cyber security, and research to customers in aerospace, defense, optical, and biotechnology sectors globally |
10 |
| 73 | 6 | |
| 74 |
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. |
3 |
| 75 |
Blackstone Law Group LLPblackstone-law.com
A boutique firm specializing in information security, litigation, appellate practice, global compliance, and internet governance for businesses worldwide |
2 |
| 76 |
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 |
1 |
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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.
More company lists in New York State
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The same list elsewhere in United States
- Cybersecurity companies in the United States 670
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- Cybersecurity companies in Virginia 55
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- Cybersecurity companies in San Francisco 42