Authentication AI Startup Jobs

Authorization-as-a-service platform providing fine-grained access control with declarative policy language.

1Password provides password, secrets, and access management software for teams and enterprises, securing credentials, app access, and AI tool usage in one platform.

KYB automation for fintechs-AI agents verify businesses and streamline compliance checks.

Better Auth builds an authentication framework for TypeScript teams, combining open source auth primitives with managed infrastructure for sessions, identity, fraud controls, and user management.

Privacy-first mobile carrier redesigning telecommunications from the ground up. Cape owns and operates its own mobile core and SIMs, providing ultra-private and secure connectivity for enterprises, government, and consumers.

Clerk provides developer-first authentication and user management infrastructure, including embeddable sign-in flows, session management, organizations, and backend APIs for modern web applications.

Cloaked is a consumer-first privacy platform that enables individuals to protect their personal data by generating unlimited secure identities including phone numbers, emails, usernames and passwords with end-to-end encryption.

Fingerprint provides device intelligence APIs that help teams recognize returning visitors, prevent fraud, secure accounts, and reduce abuse across web and mobile products.

Footprint delivers KYC and KYB onboarding with AI-driven identity and fraud checks for financial services teams.

Identity infrastructure provider for managing access to AI agent tools with task-based permissions and dynamic policy enforcement

Lumos builds an identity and SaaS management platform that helps IT and security teams automate access requests, lifecycle management, access reviews, and software spend controls from one system.

Middesk is a business identity platform that automates business verification, risk assessment, and underwriting for financial institutions and enterprises. Backed by Sequoia, Accel, and Insight Partners, the platform enables companies to verify business identities quickly and accurately.

Opal Security is the authorization reasoning platform built to secure every identity, from employees and contractors to service accounts and AI agents. Provides unified visibility and defense-in-depth infrastructure for access management.

Provides identity infrastructure for businesses to verify users, detect fraud, and automate compliance workflows.

Phantom is a leading multi-chain, self-custodial crypto wallet supporting Solana, Ethereum, Bitcoin, Base, and Polygon with over 15 million monthly active users. The platform offers token swaps, staking, NFT management, and cross-chain capabilities.

Open-source, identity-aware access proxy providing zero-trust secure access to internal applications without requiring a VPN, continuously verifying user identity and device context.

Proof provides identity-centric trust infrastructure for high-stakes digital transactions, combining identity verification, notarization, and authorization workflows.

Digital trust infrastructure enabling governments and enterprises to issue, verify, and manage digital identity credentials using open-source decentralized identity toolkits.

Supabase is an open-source Firebase alternative providing a full backend-as-a-service platform built on PostgreSQL, including database, auth, realtime subscriptions, edge functions, storage, and vector embeddings for developers.

Tailscale builds identity-first networking software on WireGuard so teams can securely connect users, devices, services, and AI systems across private infrastructure without VPN complexity.

Consumer-permissioned data platform that provides API access to payroll, employment, and financial data for streamlined income and employment verification, asset verification, and direct deposit switching.

WorkOS is a developer platform that provides APIs for quickly adding enterprise-grade features like Single Sign-On (SSO), Directory Sync (SCIM), Audit Logs, and User Management to applications. Often described as 'Stripe for enterprise features,' WorkOS powers authentication and identity for the fastest-growing AI companies including OpenAI, Anthropic, and Cursor.