Buyer's guide

Best Authentication & Identity software for Small business (51-200)

6 authentication & identity tools that fit Small business (51-200), ranked. Compare fit and pricing, or start from the full authentication & identity guide.

6 matching toolsSmall business (51-200)

We feature a ranked guide for this segment once at least 8 matching tools have complete profiles. For now, see the broader best authentication & identity software list.

1
WorkOS
Identity & Access Management
WorkOS is an authentication and user management platform that helps B2B SaaS companies add enterprise features like SSO, SCIM, and fine-grained authorization.
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2
Kinde
Authentication & Identity
Kinde is a customer identity platform for startups and growth-stage SaaS teams that want auth, organizations, permissions, and billing-ready user models out of the box.
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3
Magic
Authentication & Identity
Decentralized identity and passwordless auth platform offering magic links, social logins, and Web3 wallet support for modern apps.
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4
Stack Auth
Authentication & Identity
Stack Auth is an open-source authentication platform for modern web applications with support for organizations, roles, and hosted auth workflows.
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5
Grip Security
Cloud Security
SaaS security control plane providing comprehensive visibility into all SaaS applications with identity-based risk management and governance.
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6
Arcade
AI Agents
Arcade provides tool calling, authentication, and integration infrastructure for production AI agents that need to take real actions across SaaS systems.
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7
Descope
Customer Identity and Access Management
Descope provides drag-and-drop auth workflows for user management.
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8
Dynamic
Authentication & Identity
Web3 authentication and wallet infrastructure platform for onboarding crypto and non-crypto users.
Deal available
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9
Memberstack
Authentication & Identity
Membership and authentication tool for Webflow and no-code builders to add gated content and subscriptions.
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10
Heylogin
Software
German password manager using smartphone biometric authentication.
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11
Privy.io
Embedded Finance
Embedded wallets infrastructure for crypto apps with authentication, custody, and compliance.
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12
BoxyHQ
Security – Identity & Access Management
Open-source security platform offering SAML SSO, SCIM provisioning, and audit logs as a service for SaaS applications.
Deal available
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13
Vouched
Software
AI identity verification for healthcare and regulated industries
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14
Socure
Identity Verification
AI-powered identity verification and fraud prevention platform for financial institutions and digital commerce.
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15
MojoAuth
Authentication & Identity
Passwordless authentication platform that offers email magic links, passkeys, and phone OTP with a no-code drop-in UI.
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16
Supastarter
Billing Infrastructure
Modern Next.js and Nuxt SaaS starter with authentication, billing, and internationalization.
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17
PropelAuth
Authentication & Identity
Authentication platform for B2B applications with hosted login, organization management, and RBAC built in.
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What is the best authentication & identity software for Small business (51-200)?

The list above ranks 6 authentication & identity tools that fit Small business (51-200), ordered so the most complete, vendor-maintained profiles surface first. Open any profile for pricing and fit detail.