Open Source Alternatives to Truecaller
60 open source Mobile options similar to Truecaller, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Each profile notes license and self-hosting where we have it.
Lacework70AISan Jose, United States$1.3BData-driven cloud security platform providing automated threat detection and compliance across multi-cloud environments.
Open source
XBOW69CybersecuritySeattle, United States$215.0MLeader in autonomous offensive security, providing AI-powered penetration testing and vulnerability assessment platforms.
Open source
Chainalysis67FintechNew York, United States$170.0MBlockchain data platform providing compliance, investigation, and risk management software for global institutions and governments.
Open source
Ox Security62EnterpriseBoston, United States$154.0MEnd-to-end software supply chain security solution that prioritizes critical risks.
Open source
Gretel AI58Artificial IntelligenceSan Diego, United States$65.5MAI-powered platform for generating synthetic data to ensure privacy and accelerate AI development.
Open source
Axiom Quant58Artificial IntelligenceSan Francisco, United States$264.0MEnsuring the safety, security, and accuracy of AI-generated code through formal verification.
Open source
GitGuardian56CybersecurityParis, France$50.0MNon-human identity security platform for secrets detection, remediation, and governance in software development.
Open source
Escape55CybersecurityParis, France$21.9MAI-powered offensive security engineering platform automating security testing and remediation across the development lifecycle.
Open source
Theori54CybersecurityAustin, United States$15.4MOffensive cybersecurity firm offering AI-powered static application security testing and expert security services.
Open source
Socket53CybersecuritySan Francisco, United States$100.0MDeveloper-first security platform that proactively detects and blocks malicious open-source software supply chain attacks.
Open source
Empower AI52AIReston, United States$20.0MProvides AI and IT solutions to U.S. federal government agencies, focusing on modernization and efficiency.
Open source
Escape Technologies52CybersecurityBiarritz, France$21.9MAI-powered offensive security engineering platform for automated vulnerability discovery, testing, and remediation.
Open source
- ZEZeroPath50CybersecuritySan Francisco, United States$20.5M
Replaces traditional SAST, SCA, and secrets scanning with a single AI-native engine capable of detecting complex business logic flaws.
Open source
Horizon3.ai46AISan Francisco, United States$610.0MAutonomous penetration testing platform that continuously identifies and fixes exploitable security vulnerabilities at scale.
Open source
Glide Identity45CybersecuritySan Francisco, United States$25.0MVerifies users instantly and securely, without passwords or SMS codes using SIM-based cryptographic authentication.
Open source
Gecko Security43AISan Francisco, United States$500KAI-powered security engineer that automatically finds and fixes vulnerabilities in software codebases.
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t54 Labs41AIDublin, United States$5.0MBuilding trusted financial infrastructure for autonomous AI agents to transact securely across digital ecosystems.
Open source
Telefonica18TelecommunicationsMadrid, Spain$51.9BGlobal telecommunications company providing mobile, fixed-line, broadband, and digital services.
Open source
Citcall10CybersecurityJakarta, IndonesiaA one-time password (OTP) verification solution using a miscall-based system for enhanced security and cost-efficiency.
Open source
Quantro Security10CybersecurityNew York, United StatesAutonomous AI agents for enterprise vulnerability management and proactive cyber risk analysis.
Open source
VestAuth4AIUnited StatesWeb-bot authentication and secret management solution designed specifically for AI agents and automated workflows.
Open source
1Password85CybersecurityToronto, Canada$1.2BSecurely stores and manages passwords, secrets, and access for individuals, businesses, and AI agents.
Open source
Okta79SaaSSan Francisco, United States$187.0MCloud-based identity and access management platform for secure user authentication and application access.
Open source
ElevenLabs79AILondon, United Kingdom$1.6BElevenLabs AI Music Generator allows users to quickly create high-quality, customized music tracks in any genre or style, with or without vocals, in multiple languages using simple text prompts.
Open source
Hugging Face76AINew York, United States$395.2MHugging Face is the leading AI community and platform for machine learning collaboration, enabling developers to build, share, and deploy models, datasets, and applications.
Open source · Self-hostable
Vanta75CybersecuritySan Francisco, United States$154.0MAutomates security and compliance for growing businesses.
Open source
WorkOS71Developer ToolsSan Francisco, United States$198.0MThe enterprise features layer for developers.
Open source
Veeva Systems67SaaSPleasanton, United States$7.0MCloud-based software, data, and consulting solutions for the global life sciences industry.
Open source
JetBrains66Software DevelopmentPrague, Czech RepublicJetBrains creates intelligent, productivity-enhancing software development tools for professional developers and teams worldwide.
Open source
RAD Security64CybersecurityTel Aviv, Israel$29.0MAI-driven platform for securing AI workloads and cloud infrastructure with real-time, behavior-driven defense.
Open source
Tracebit63CybersecurityLondon, United Kingdom$25.0MCloud-native cybersecurity company focused on threat detection using deception technology.
Open source
XMTP63AISan Francisco, United States$49.9MExtensible Message Transport Protocol for secure, decentralized, and identity-native messaging across Web3 applications.
Open source
D-Fend Solutions63DronesTel Aviv, Israel$59.0MCounter-drone technology provider enabling control and safety during rogue drone incidents.
Open source
Artemis Global Technologies62CybersecuritySan Francisco, United States$85.0MAI-powered breach remediation for cybersecurity.
Open source
Veracode62CybersecurityBurlington, United States$40.0MVeracode provides a SaaS platform for application security testing and risk management.
Open source
Zendesk62Customer ServiceSan Francisco, United States$500KCloud-based customer service and engagement platform providing ticketing, messaging, and AI-powered support tools.
Open source
NinjaOne62SoftwareAustin, United States$1.2BUnified endpoint management platform that helps IT teams automate, manage, and secure their IT infrastructure.
Open source
StackOne62AILondon, United Kingdom$23.6MAI-powered integration platform for SaaS and AI agents, simplifying enterprise connectivity.
Open source
Tonic.ai62AISan Francisco, United States$43.0MSynthetic data platform enabling developers to safely mimic production data for testing and development.
Open source
Upstash62SaaSSan Jose, United States$11.9MServerless Redis and Kafka for low-latency data.
Open source
Tigera61CybersecuritySan Francisco, United States$65.0MProvides Zero Trust network security and continuous compliance solutions for Kubernetes and cloud-native platforms.
Open source
Continue61AISan Francisco, United States$70.1MAn AI code assistant for developers, integrating with IDEs.
Open source
MetricStream61Governance, Risk, and Compliance (GRC)San Jose, United States$65.0MGlobal leader in AI-first connected Governance, Risk, and Compliance (GRC) software solutions.
Open source
Nasuni61SaaSBoston, United States$219.0MA hybrid cloud file data platform providing unified storage, protection, and management for enterprises.
Open source
Dataiku60Artificial IntelligenceNew York, United States$200.0MDataiku is the platform for Everyday AI, uniting people, orchestration, and governance for enterprise AI.
Open source
Fair Isaac Corporation (FICO)60Financial ServicesBozeman, United StatesA global leader in data analytics and decision management software for financial services.
Open source
Specter Ops59CybersecurityAlexandria, United States$100.0MIdentity security and attack path management platform for hybrid systems and cloud environments.
Open source
Amigo AI58Artificial IntelligenceNew York, United States$17.3MPlatform for building and training patient-facing clinical AI agents for healthcare organizations.
Open source
Altana58AINew York, United States$200.0MAI-powered platform providing a shared, intelligent map of the global supply chain for enterprises.
Open source
Essential AI58AISan Francisco, United States$239.8MDevelops full-stack AI products to automate workflows and enhance human-computer collaboration for enterprises.
Open source
JupiterOne57CybersecurityCary, USA$3.0MAn AI risk management platform provider.
Open source
Codacy57DevOps Intelligence PlatformLisbon, Portugal$23.1MAutomated code review and security platform for engineering teams to ship high-quality code faster.
Open source
BLACKBOX.AI57AISan Francisco, United States$38.3MBLACKBOX.AI is a coding LLM designed to transform software development by accelerating innovation and making engineers 10X faster in building and releasing products.
Open source
Quotient AI56Artificial IntelligenceBoston, United States$5.5MPlatform for continuous evaluation, monitoring, and reinforcement learning for enterprise AI agents.
Open source
SerpApi55SaaSAustin, United States$100KProvides a real-time API to access and parse structured Google search results.
Open source
Openlayer55AISan Francisco, United States$19.3MUnified AI evaluation, observability, and governance platform for enterprise machine learning and LLM systems.
Open source
Wandera55Mobile$53.5MOpen source
Qrypt55CybersecurityNew York, United States$50.0MQuantum-powered cybersecurity solutions providing unbreakable encryption and quantum entropy for data protection.
Open source
EvolutionaryScale55AISan Francisco, United States$142.0MAI research lab developing frontier models for protein design and biological discovery.
Open source
OpenZeppelin54BlockchainSan Francisco, United States$37.4MLeading provider of security products and audits for building and operating decentralized blockchain applications.
Open source