OneID Becomes First DIATF-Certified Holder Service Provider

Published Date : 9/5/2025 

OneID, a UK-based identity service, has become the first certified Holder Service Provider (HSP) under the Digital Identity and Attributes Trust Framework (DIATF) 0.4 Gamma version. This certification marks a significant step in the UK’s digital economy, enhancing user control over identity and attribute information. 

OneID, a UK-based identity service, has announced its certification under the newly authorized Digital Identity and Attributes Trust Framework (DIATF) 0.4 Gamma version. This framework, which came into effect on July 1, 2025, empowers UKAS-accredited Conformity Assessment Bodies (CABs) to certify digital verification services under strengthened standards.

OneID’s certification recognizes it as an Identity Service Provider (IDSP), Orchestration Service Provider (OSP), and the very first certified Holder Service Provider (HSP). HSPs allow users to store and manage their identity and attribute information for future reuse, making digital wallets a key component of this service. This certification paves the way for OneID’s identity wallet, enhancing user control and data privacy.

Adrian Field, Director of Market Development at OneID, calls this certification a significant step not only for OneID but for the UK’s digital economy. “By becoming one of the first certified providers under DIATF v0.4, we’re helping to set the bar for what secure, user-friendly, and privacy-preserving digital identity should look like,” he said.

For customers, this certification means seamless verification across borders, more control over data, and easier onboarding. This achievement comes as OneID embarks on a new chapter with the appointment of Karl MacGregor as its new CEO, expected to lead the next stage of expansion.

The firm has been at the forefront of the DIATF framework from the beginning. It was the first OSP certified under the Alpha version of the framework in 2022 and was recertified as an IDSP and OSP in June 2024. The addition of the HSP certification further solidifies OneID’s position as a leader in digital identity services.

For those interested in getting their service onto the GOV.UK register of digital identity and attribute services, the Office for Digital Identities and Attributes (OfDIA) provides guidance on the registration process. The first step is to have one’s service certified by a CAB, which judges the service against the DIATF. Once OfDIA validates the certificate, the service can file an application to appear on the register. The process can take up to 20 working days from the time the certificate is issued and received by OfDIA. 

Frequently Asked Questions (FAQS): 

Q: What is the Digital Identity and Attributes Trust Framework (DIATF)?

A: The Digital Identity and Attributes Trust Framework (DIATF) is a set of standards and guidelines for digital verification services in the UK. It ensures that these services meet high levels of security, privacy, and user-friendliness. The DIATF is managed by the Office for Digital Identities and Attributes (OfDIA).

Q: What is a Holder Service Provider (HSP)?

A: A Holder Service Provider (HSP) is a service that allows users to store and manage their identity and attribute information for future reuse. This can include digital wallets, which provide a secure and convenient way for users to control their data.

Q: Why is OneID’s certification significant?

A: OneID’s certification as the first Holder Service Provider (HSP) under the DIATF 0.4 Gamma version is significant because it sets a new standard for secure, user-friendly, and privacy-preserving digital identity services in the UK. It also enhances user control over their data and facilitates seamless verification across borders.

Q: How can a service be listed on the GOV.UK register of digital identity and attribute services?

A: To be listed on the GOV.UK register of digital identity and attribute services, a service must first be certified by a UKAS-accredited Conformity Assessment Body (CAB) according to the DIATF. Once validated by the Office for Digital Identities and Attributes (OfDIA), the service can apply to appear on the register. The process can take up to 20 working days.

Q: What is the role of the Office for Digital Identities and Attributes (OfDIA)?

A: The Office for Digital Identities and Attributes (OfDIA) is responsible for managing the Digital Identity and Attributes Trust Framework (DIATF) in the UK. It ensures that digital verification services meet high standards of security, privacy, and user-friendliness and oversees the certification and registration process for these services. 

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