Top Seed Cybersecurity companies

Companies defending or attacking software, networks, and cloud infrastructure. Filtered to companies whose latest disclosed round is Seed.

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Ranked by current headcount across Seed Cybersecurity companies. Refreshed monthly.

1
Varonis· Miami, Florida, United States
Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection. Core offerings include the Varonis Data Security Platform for AI-native data security, Varonis Atlas for safe and trustworthy AI, Varonis Next-Gen DAM for database security, and Varonis Interceptor for preventing AI-powered social engineering threats. Backed by 24×7×365 expert-led detection and response, Varonis enables organizations to confidently adopt AI, reduce data exposure, and simplify security operations in an evolving threat landscape. Trusted by thousands of leading global enterprises, Varonis is the partner security teams rely on to automatically and effortlessly protect their most critical data and safely accelerate AI innovation.
- Seed
- 2.8k employees
- Founded 2005
2
Cyderes· Kansas City, Missouri, United States
Today’s threatscape is relentless. So are we. At Cyderes, we specialize in building practical Identity & Access Management (IAM), Managed Detection & Response (MDR), Exposure Management, and risk programs to block and stop threats, fast. Our tireless global team is laser-focused on cybersecurity, arming organizations with the people, platforms, and perspectives they need to conquer whatever tomorrow throws their way.
- Seed
- 942 employees
- Founded 2003
3
Netenrich· San Jose, California, United States
Netenrich is redefining security operations by shifting the focus from "efficiency" (speed) to "efficacy" (comprehensive coverage). Our adaptive Cyber Risk Operations approach empowers business-first CxOs to move beyond the "Illusion of Coverage" provided by traditional tools and achieve true Situational Awareness. Powered by the Resolution Intelligence CloudTM platform on Google SecOps, we operationalize our A.C.T. Framework (Attack Surface, Controls, and Threats) to deliver measurable efficacy outcomes across four critical dimensions: filtering Threat noise for relevance, quantifying business Impact, managing Posture drift in real-time, and validating Control health to prevent silent failures. Netenrich leverages Agentic AI to bridge the gap between risk and operations, accelerating the evolution toward Autonomous Security Operations (ASO) through the Resolution Intelligence Cloud's outcome-driven approach, enabling enterprises to not just feel safe, but to be prepared.
- Seed
- 893 employees
- Founded 2003
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4
GlobalSign· Portsmouth, New Hampshire, United States
GlobalSign is the leading provider of trusted identity and security solutions.Enabling businesses, large enterprises, cloud service providers and IoT innovators around the world to secure online communications, manage millions of verified digital identities and automate authentication and encryption.Its high-scale Public Key Infrastructure (#PKI) and identity solutions support the billions of services, devices, people and things comprising the Internet of Everything (#IoE).
- Seed
- 510 employees
- Founded 1996
5
Intrinsec· Courbevoie, Île-de-France, France
Intrinsec is focused on Information Security. Delivering security services since 20 years, the company is focused on building services & offers for a better protection of its customers & partners business.
- Seed
- 230 employees
- Founded 1995

6
Kratikal· Noida, Uttar Pradesh, India
Kratikal Tech Limited is a leading cybersecurity company helping organizations secure their digital ecosystems and manage evolving cyber risks. Our approach is rooted in industry best practices, aligning cybersecurity initiatives with overall business risk management.We are CERT-In empanelled and bring proven expertise in delivering high-impact security outcomes. Our portfolio includes AutoSecT, an AI-driven Pentest and VMDR platform, along with manual and automated VAPT services and compliance support for standards such as SOC 2, PCI DSS, IS Audit (RBI), and ISO 27001.We have supported 650+ enterprises and SMEs, including Fortune 500 companies and high-growth startups globally, in strengthening their security posture with confidence.
- Seed
- 208 employees
- Founded 2012
7
CHT Security 中華資安國際· Taipei–Keelung metropolitan area, Taiwan
Founded in 2017, CHT Security (TWSE: 7765) is a subsidiary company of Chunghwa Telecom, the largest ISP in Taiwan. Based on years of experiences in cyber defense practices, CHT Security is the leading cybersecurity solution provider in APAC, specializing in cutting edge managed security services, NDR/EDR services, technical consulting and digital identity technology and has already won several international certifications and prestigious awards worldwide. For more information, please visit www.chtsecurity.com.
- Seed
- 183 employees
- Founded 2017
8
FishNet Security· Leawood, Kansas, United States
FishNet Security is North America's largest provider of information security solutions. Headquartered in the Kansas City metro, we help customers define the risks in their environment and select the right technologies and solutions to enable day-to-day operations and business goals. We have 29 offices nationwide, including nine Authorized Training Centers, two state-of-the-art Security Operations Centers and a cloud-based testing lab in Minnesota.
- Seed
- 166 employees
- Founded 2023
9
Jit· Boston, Massachusetts, United States
Jit is now part of Torq, helping power the Torq AI SOC Context Graph — the live intelligence layer that grounds AI agents in real, operational context across the enterprise.Built by the Jit team and now integrated into the Torq AI SOC Platform, the Context Graph connects identities, assets, applications, vulnerabilities, policies, and past decisions into a continuously updated model of your environment. It gives AI agents the context they need to understand what is true about your environment, reason on the full story behind every alert, and execute across the entire threat lifecycle.Learn more: https://torq.io/blog/torq-acquires-jit/
- Seed
- 161 employees
- Founded 2021
10
BreachLock, Inc.· New York, New York, United States
BreachLock is a global leader in Continuous Attack Surface Discovery and Penetration Testing. Continuously discover, prioritize, and mitigate exposures with evidence-backed Attack Surface Management, Penetration Testing, and Red Teaming.Elevate your defense strategy with an attacker's view that goes beyond common vulnerabilities and exposures. Each risk we uncover is backed by validated evidence. We test your entire attack surface and help you mitigate your next cyber breach before it occurs.Know your risk. Contact BreachLock today!
- Seed
- 137 employees
- Founded 2019

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Find engineers and founders at Seed Cybersecurity companies

Seed Cybersecurity companies are some of the most active hirers in the market. The list above ranks the largest Cybersecurity companies whose latest disclosed round is Seed, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 565 matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Cybersecurity share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Cybersecurity talent is concentrating right now.

Refolk converts this list into a search. Ask for “Seed Cybersecurity founders hiring senior engineers” or “design leads at Seed Cybersecurity companies” and Refolk returns a fresh ranked shortlist with the sources behind each match.

How this list is built

Refolk pulled Cybersecurity companies whose latest disclosed funding round is Seed from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes monthly.

Last refreshed: Fri, 18 Sep 2026 07:47:18 GMT

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The list draws on the public company graph - headcount and growth signals, funding history, and recency. The criteria chips at the top show exactly which filters produced it, and the methodology section explains the ranking.

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