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Applies to: 
External tenants (learn more)
Services and integration partners for Microsoft Entra External ID
Partners listed below can help you plan and execute migrations from Azure AD B2C to Microsoft Entra External ID. Use this page to identify and contact partners based on your migration needs, including advisory, implementation, and engineering support. Each partner has published additional content outlining their approach and capabilities.
How to use this list
- Identify partners aligned to your needs (for example: advisory, implementation, or engineering-led delivery)
- Review partner descriptions and linked resources
- Contact partners directly to begin migration planning and execution
| Name | Description | Contact |
|---|---|---|
| Avanade | "Avanade is excited to be a launch partner with Microsoft for migrating clients from Entra B2C to Entra External ID. Our deep expertise on both Entra B2C and Entra External ID has led to the development of unique assets that accelerate the migration to Entra External ID, reducing migration risk and improving the end user experience. Avanade provides both greenfield deployment and migration services for Entra External ID and works hand in hand with our clients to tailor the service to meet their needs and provide the best possible experience for consumer sign-in, without compromising on security." | identity@avanade.com |
| Edgile, a Wipro company | "Edgile, a Wipro company is excited to be a Microsoft Migration Partner for Microsoft Entra External ID. We have spent many years helping customers deploy and manage their customer identity environments including with Azure AD B2C. Our deep and broad experience in customer identity management, Azure AD B2C, and Microsoft's successor Entra External ID makes us uniquely positioned to ensure your program is a success. Our project accelerators will reduce your risk and deliver results faster." | info@edgile.com |
| EY | "The EY organization applies deep industry insight and a refined, human-centered approach to help enterprises reimagine external identity with Microsoft Entra External ID. Through the EY-Microsoft Alliance, proven accelerators and delivery methods streamline transitions from Azure AD B2C and simplify complex integrations, enabling a secure, scalable identity foundation that enhances trust across customer, partner, and developer communities." | americasmicrosoftallianceteam@ey.com |
| Grit | "Grit Software has deep expertise in consumer identity and access management, with a strong track record of helping Fortune 500 and mid-market companies execute complex transformation projects successfully and on time. For Azure AD B2C to Microsoft Entra External ID migrations, Grit's AI-powered migration service uses advanced coding agents to deliver accurate migrations in days, while ensuring customer data isn't sent to the underlying AI models." | info@gritsoftwaresystems.com |
| Modern 42 | "Modern 42 is a specialist identity consultancy delivering enterprise-grade identity advisory and engineering services across Australia. With Microsoft Entra External ID experience for government and private sector customers, Modern 42 has both the technical expertise and experience required to assist any organization to transition from Azure AD B2C to Microsoft Entra External ID, no matter how complex or simple. Modern 42's approach combines strategic consulting with hands-on technical implementation, ensuring CIAM solutions align with your business objectives, regulatory requirements, customer experience expectations, and security best practices." | hello@modern42.com |
| PlanB. | "PlanB. combines deep identity and security expertise with a strong focus on measurable business outcomes. As an experienced partner within the Microsoft Entra ecosystem, we help organizations securely integrate and manage external identities at scale—customers, agents, partners, and suppliers—across their digital platforms. From identity strategy and architecture through hands-on implementation of Microsoft Entra External ID, we ensure security, governance, compliance, and user experience work seamlessly together. Our mission is to simplify complex identity scenarios, reduce risk, and enable sustainable digital growth built on trusted identity foundations." | Felix Rohmeier (Solution Expert for Identity), Identity@plan-b-gmbh.com |
| Slalom | "Slalom is a trusted Microsoft partner that helps organizations modernize identity systems at scale. As an integration partner for Entra External ID migrations, Slalom offers practical experience in identity migrations, organizational change management, and secure customer access. Their B2C to Entra External ID migration approach combines strategic planning, architectural expertise, and proven delivery tools to simplify complex migrations and reduce risk. This empowers organizations to provide secure, scalable customer identity solutions and fully leverage the Microsoft Entra platform." | MoreTogether@Slalom.com |
| WhoIAM | "WhoIAM is a trusted specialist in Microsoft customer identity, uniquely positioned to guide organizations through the transition from Azure AD B2C to Microsoft Entra External ID. Founded by former Microsoft identity engineering leaders, WhoIAM brings deep, hands-on expertise across Azure AD B2C, Entra, and large-scale CIAM platforms. Through purpose-built migration tooling, proven just-in-time and bulk migration patterns, and close collaboration with customer engineering and security teams, WhoIAM helps organizations modernize identity with minimal disruption—ensuring continuity today while building a future-ready external identity foundation on Microsoft Entra." | Info@whoiam.ai |
Next steps
- Contact a partner from the list above to begin your migration
- Engage your Microsoft account team for alignment and support
- Review migration guidance for Microsoft Entra External ID: