Authentication AI Startup Jobs

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

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.

Persona provides identity infrastructure for businesses to verify people and organizations, manage onboarding, automate KYC and AML checks, and reduce fraud across regulated digital workflows.

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.

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.

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.

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

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.

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.

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.

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.

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.

Bureau is a no-code identity decisioning platform that uses AI-powered insights to prevent fraud in real-time. It serves over 200 global brands across fintech, banking, e-commerce, insurance, and gig economy sectors, having verified over 300 million identities.

Duna is an AI-native business identity platform that helps banks, fintechs, and enterprises automate business (KYB) onboarding and compliance. Founded in 2023 by Stripe alumni and headquartered in Amsterdam, it operates a shareable business-identity network and a policy engine that turns compliance rules into auditable, executable code. Customers include Plaid, Fiserv (CCV), Moss, and SVEA Bank.

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.

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

Bluesky is a decentralized social network built on the AT Protocol, giving users control over their social graph and enabling an open, interoperable layer for social applications. Founded as a Public Benefit Corporation in 2021, it has grown to tens of millions of users as an open-protocol alternative to X, letting users choose their own algorithms, moderation tools, and data portability.

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

Comun is a New York-based digital neobank providing fee-free financial services tailored to Latino immigrants in the United States. Users can open an FDIC-insured checking account and get a Visa debit card in minutes using 100+ Latin American ID types (no SSN required), with Spanish-first support, remittances, early paycheck access, and instant payments. The company monetizes through interchange, remittance fees, and interest on deposits.

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

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.

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

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

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