Deepak Gupta
The CIAM Buyer's Handbook
Everything You Need to Evaluate, Select & Implement Customer Identity in 2026
The CIAM Buyer's Handbook
Everything You Need to Evaluate, Select & Implement Customer Identity in 2026
The go-to resource for anyone evaluating CIAM solutions - packed with vendor comparisons, implementation guides, and the evaluation framework built from scaling a CIAM platform to 1B+ users.
Start ReadingTable of Contents
CIAM 101 - Why Customer Identity Is a Product Decision
The difference between CIAM and workforce IAM, and why authentication requirements block 75-80% of enterprise deals.
The Evaluation Framework
A structured methodology for comparing CIAM vendors across security, scalability, developer experience, and compliance.
Solution Landscape 2026
Top 10 solutions, passwordless-first vendors, and alternatives to Auth0, Okta, AWS Cognito, and WorkOS.
Implementation Playbook
From planning to production: components, configuration, security best practices, and migration strategies.
The Future - Decentralized Identity & Verifiable Credentials
The EU Digital Identity Wallet mandate, verifiable credentials, DIDs, and zero-knowledge proofs.
Open Source CIAM - When and How to Go Self-Hosted
Keycloak, Ory, ZITADEL, Authentik, and FusionAuth compared - with a framework for deciding between open source and commercial.
CIAM Market Analysis - M&A, Investment, and What It Means for Buyers
The $14B CIAM market, key acquisitions from Okta/Auth0 to Twilio/Stytch, and how consolidation affects your vendor decisions.