Best NDAY Security alternatives and competitors

Pentera Automated Security Validation Platform

Serving 1,100+ customers including Casey's, Wyndham Hotels, Virgin Atlantic across financial services, healthcare, government sectors. ARR increased 300% since 2021, customer base grew 200%. The company acquired DevOcean (AI-remediation platform, October 2025) and EVA Information Security (AI red teaming, November 2025). Named SC Awards finalist as Most Promising Unicorn.

TryHackMe Cyber Security Training

TryHackMe Cyber Security Training on SecurityListing: Hands-on cybersecurity training platform with gamified labs and challenges

ZeroThreat.ai

Fastest AI-Powered AppSec & Automated Pentesting Platform

Detectify

Detectify is a web security service that simulates automated hacker attacks on your website, detecting critical security issues before real hackers do. Starting from an idea of a group of security-in

PentesterLab PRO

PentesterLab PRO on SecurityListing: Online platform offering 700+ hands-on web security exercises and training

Dhound

Dhound is a cybersecurity company providing web application penetration testing, focused on manual approach and comprehensive delivery, helping IT companies be secure and compliant. We’ll find cracks

Appknox

Appknox is the world’s most powerful plug-and-play security platform that helps developers, security researchers, and enterprises to build a safe and secure mobile ecosystem. Appknox provide world cl

Alpine Security

Alpine Security provides penetration testing, security assessments and cybersecurity training services. Alpine's goals are to help organizations reduce cybersecurity risk and empower cybersecurity pr

VORNAC

Continuous autonomous penetration testing for regulated enterprises, developed and hosted in Germany.

eShard

At eShard, we help industrial leaders and government agencies take control of chip security testing and binary analysis. Our platform provides a dedicated testing environment where teams can analyze

Anvil Secure

Anvil specialize in penetration testing, embedded systems, and research to help identify vulnerabilities and mitigate risk. Penetration TestingWe test your systems the way attackers would, uncovering

Vulnetic AI Hacking Agent

Vulnetic AI Hacking Agent on SecurityListing: Vulnetic AI is the most capable autonomous hacking agent on the market.

PortSwigger

PortSwigger on SecurityListing: A comprehensive toolkit for web application security testing, offering a range of products and solutions for identifying vulnerabilities and improving security posture.

Edgescan

Edgescan offers a continuous security testing and unified exposure management SaaS platform that manages thousands of assets for businesses large and small in a wide variety of industries across the g

AFINE

AFINE is a trusted advisor in the field of cybersecurity and pentesting. We have been operating since 2015. Our team consists of carefully selected experts in the field of software, hardware, cryptogr

Appgate

Appgate is the secure access company. We empower how people work and connect by providing solutions purpose-built on Zero Trust security principles. This people-defined security approach enables fast

Cigniti Technologies

Cigniti Technologies provides Independent Software Testing (IST) Services including software security testing. Cigniti is the world’s first IST Services Company to be appraised at CMMI-SVC v1.3, Matu

Conseal Security

Conseal Security are specialists in mobile app penetration testing. Our expert-led DAST and SAST quickly finds security vulnerabilities in your iOS and Android apps. We do this using meticulously-res

Conviso Platform

Conviso Platform on SecurityListing: AppSec platform for managing application security posture with consulting services

Damn Vulnerable iOS App (DVIA)

Damn Vulnerable iOS App (DVIA) on SecurityListing: iOS application for testing iOS penetration testing skills in a legal environment.

Global Provider of Penetration Testing Services

Packetlabs is a global penetration testing company that improves your company's cybersecurity posture with state of the art penetration testing

AppSec Labs

AppSec Labs specialise in application security. Our mission is to raise awareness in the software development world to the importance of integrating software security across the development lifecycle.

OWASP Bricks

OWASP Bricks on SecurityListing: Deliberately vulnerable web application for security professionals to practice attack techniques.

PowerUpSQL

PowerUpSQL on SecurityListing: Tool for attacking Active Directory environments through SQL Server access.

DeepStrike Penetration Testing

DeepStrike Penetration Testing on SecurityListing: Manual penetration testing service simulating real-world attacks

Faraday Faraday All-in-One

Faraday Faraday All-in-One on SecurityListing: Modular offensive security platform for continuous monitoring and testing

Halborn

Award-winning ethical blockchain hackers to secure your stack end-to-end. Far beyond smart contracts. Because smart contract audits are never enough to ensure your company is safe. Halborn brings awa

LogicalTrust

LogicalTrust security testing specialists find the weakest points in your company and show you how to fix them step-by-step, as well as how to improve your security. Our offer covers security tests o

Simbian AI Security Operations

Simbian AI Security Operations on SecurityListing: AI-powered security operations platform for autonomous alert triage & response

Wifislax

Wifislax on SecurityListing: GNU/Linux Wireless distribution for security testing with XFCE desktop environment.

BreachLock Attack Surface Discovery & Penetration Testing

BreachLock Attack Surface Discovery & Penetration Testing on SecurityListing: PTaaS platform with continuous attack surface discovery and red teaming

CSIS Assume Breach

CSIS Assume Breach on SecurityListing: Simulated breach testing service to identify vulnerabilities and weaknesses

Twitter's Vine Source Code Dump

Twitter's Vine Source Code Dump on SecurityListing: A disclosure of a bug found in Twitter's Vine and the process of procuring the source code.

Green Bone Web App Scanning

Green Bone Web App Scanning on SecurityListing: Managed web application security scanning service by Greenbone AG

SaltWorks SaltMiner Community

SaltWorks SaltMiner Community on SecurityListing: Pen test management and reporting platform for manual assessments

Yogosha Offensive Security Testing Platform

Yogosha Offensive Security Testing Platform on SecurityListing: Platform for managing offensive security tests including pentests and bug bounties

Astra Security

Astra's website security solution provides real-time protection against malware, hackers, SQLi, XSS, DDoS, LFI and RFI. A comprehensive security solution that takes care of all your cyber security ne

Cyver Pentest Management Platform

Cyver Pentest Management Platform on SecurityListing: Pentest management platform for reporting, project mgmt & client collaboration

Plainsea

AI-powered PTaaS platform augmenting pentesters with automated, continuous validation.

Serving Random Payloads with Apache mod_rewrite

Serving Random Payloads with Apache mod_rewrite on SecurityListing: A tutorial on how to use Apache mod_rewrite to randomly serve payloads in phishing attacks

Simbian AI Agents

Simbian AI Agents on SecurityListing: AI-powered autonomous pentesting platform for continuous security validation

Zigrin Security

Zigrin Security are cybersecurity experts, who offer comprehensive, hands-on security testing of networks, applications, cloud-based solutions, e-commerce applications, and mobile devices. The list of

AISafe Labs

Autonomous AI penetration testing platform with source-code audits, white-box and black-box pentests, validated findings, and audit-ready reports in hours.

Bishop Fox AI/LLM Security Assessment

Bishop Fox AI/LLM Security Assessment on SecurityListing: AI/LLM security assessment service for testing AI systems and infrastructure

Faraday All-in-One

Faraday All-in-One on SecurityListing: All-in-one platform for vuln mgmt, red team ops, and attack surface mgmt

Zeroday Ops

Our goal is to lead innovation in autonomous vulnerability scanning, combining scalability, speed, and accuracy to stay ahead of emerging threats and evolving attack surfaces. We’re building a produc

Binary Gecko

Binary Gecko GmbH provides tailor made cybersecurity solutions and services. Ourinternational team is made up of world class, highly technical professionals with a proven track record in the field. We

Holm Security

Holm Security make first-class vulnerability assessment available to everyone by taking vulnerability assessment into the next generation as a cloud service. Holm Security VMP (Vulnerability Manageme

Metasploit Unleashed

Metasploit Unleashed on SecurityListing: Free online ethical hacking course covering penetration testing, web app assessments, exploit development, and security operations.

Accedian

Accedian is a leader in performance analytics and end user experience solutions, dedicated to providing our customers with the ability to assure their digital infrastructure. The Accedian management

Aegis Security

Based in Singapore, Aegis Security is a digital security company that works with the local government and private companies. Our mission is to support our clients, and secure their systems against po

ControlCase Continuous Compliance Solution

ControlCase Continuous Compliance Solution on SecurityListing: Continuous compliance monitoring and management for PCI DSS, ISO, SOC, HITRUST

FireCompass AI-powered Pen Testing

FireCompass AI-powered Pen Testing on SecurityListing: AI-powered automated pen testing & continuous red teaming platform

TrojAI Detect

TrojAI Detect on SecurityListing: AI red teaming and pentesting tool for detecting security flaws in AI models

Tulpa AI

Tulpa develops safe AI assistants (co-pilots) to support and enhance human performance in high-stakes, mission-critical decision-making environments. We enable high-performance, high-value, scalable w

KFSensor

KFSensor on SecurityListing: KFSensor is an advanced Windows honeypot system for detecting hackers and worms by simulating vulnerable system services.

Phone Monitoring Service

Phone Monitoring Service provides cyber security services, ethical hacking services, social media hacking services in the USA, Canada, Europe. As a cyber security company, we offer one-stop phone sec

Cybrary

Cybrary on SecurityListing: Cybrary is an online learning platform that provides accessible and affordable training in cybersecurity skills.

Fortrex Cybersecurity

Fortrex Cybersecurity on SecurityListing: Cybersecurity services provider offering TPRM, VAPT, and security audits

Horizon3.ai NodeZero

Horizon3.ai uses real-world attacks to safely show what attackers can actually do in your environment—so you can fix and prove what matters.