Use Cases
Discover real-world examples of digital wallets and verifiable credentials in action — passwordless login, age verification, digital travel, cross-border and public services, and more. Learn from proven patterns, compare approaches, and reuse what works instead of starting from scratch.
inGo - Digital, Verifiable and Secure Subcontractor Management Including Physical Access
by esatus AG
Checking documents, monitoring deadlines, and granting site access for subcontractors is still often handled manually, with paper folders and spreadsheets - on construction sites, in logistics, and in technical services alike. inGo digitalizes this process using decentralized identities (DIDs), digital wallets, and Verifiable Credentials (VCs), built on open standards (OpenID4VCI/VP, EUDI Wallet ARF) so it interoperates with other EUDI-ARF-conformant wallets rather than locking participants into a single vendor. Employees receive credentials - such as site certificates, ID cards, work permits, or safety training - directly in their personal wallet. Using selective disclosure (SD-JWT VC), they can prove only what's required for a check, e.g. a valid access permit, without revealing unrelated personal data. General contractors gain a real-time, cryptographically verifiable overview of credentials, deadlines, and site access. Subcontractors manage documents and credentials for their employees once and reuse them across projects - replacing manual paper checks with instant, auditable verification, on a secure, privacy-preserving, GDPR-compliant foundation.
- Sector
- Construction
- Country
- Germany
- Production deployment
- Yes
- More information
- https://www.ingo-id.com
- Last updated
How it works
inGo enables a range of processes built on wallets and Verifiable Credentials:
1. Onboarding: General contractors and subcontractors set up business wallets to manage employees and share project access.
2. Issuance: Subcontractors and general contractors issue credentials (site certificates, ID cards, work permits, safety training) as Verifiable Credentials into each employee's personal wallet.
3. Verification: The credentials are used to gain a verified site access, at site entrances (e.g. turnstiles) or during inspections inGo can tell if all required documents are available and valid in seconds - no paper, no manual lookup.
4. Selective disclosure: Employees share only the specific attribute needed (e.g. "valid access permit: yes"), not full documents.
5. Audit trail: Every verification is logged in an auditable, GDPR-compliant record.
External trusted issuers - e.g. government authorities, insurance companies, or certification bodies - are planned as additional issuers (e.g. state-verified identity, insurance proof).
Tags
- construction
- subcontractor management
- access control
- verifiable credentials
- EUDI wallet
- compliance
- business wallet
Interaction modes
- Remote flow
VC formats
- AnonCreds
- ISO mDoc
- SD-JWT VC
Issuance protocols
- OpenID4VCI
- Other
Presentation protocols
- DIDComm v2
- OpenID4VP
Interop profiles
- EUDI Wallet ARF
- HAIP v1
Personal wallets used
- inGo Wallet App
Business wallets used
- inGo Business Wallet
Issuers involved
- General contractors and subcontractors (issuing site and access credentials); external trusted issuers such as government authorities, insurance companies, or certification bodies (planned)
Credential types used
- Site Certificate, ID Card, Work Allowance, Visa, Social Security, Minimum Wage. The inGo system allows additional credential types like Safety Training and many more.
Relying parties
- General contractors / site management, access control systems (turnstiles), authorities/customs during inspections
Showing 24 of 101 items
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The FIDES Use Case Catalog aims to provide a clear and up-to-date overview of how verifiable credentials and digital wallets are used in the real world. While FIDES Labs BV does not assume responsibility or liability for the completeness, accuracy, or timeliness of the information presented, we have made a best effort to compile a representative overview. The data is aggregated from publicly available sources and from information published by the organisations themselves.
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