Keys + wallets
Key Infrastructure
MPC and HSM architecture, key lifecycle, custody models, wallet infrastructure, signing policies, and transaction controls.
Digital Asset Infrastructure
Build the rails.Securely.At scale.
Architecture and engineering for infrastructure that secures, issues, moves and settles digital assets—across custody, payments, tokenisation and banking rails.
What 21Lab builds
Control every layer.From keys to settlement.
Architecture and engineering across the critical layers of digital asset infrastructure—for teams building custody, payments, tokenisation, and treasury products.
Assets
Asset Infrastructure
Token models, issuance and redemption, smart contracts, lifecycle management, and ledger representation.
Transactions + settlement
Transaction Infrastructure
Transaction orchestration, blockchain and banking integrations, balance integrity, reconciliation, liquidity, and settlement.
Used across
Custody
Payments
Tokenisation
Treasury
Custody
Payments
Tokenisation
Treasury
How 21Lab works
Security, architecture, and operations.Designed together.
01
Clarify
Map asset flows, trust boundaries, regulatory requirements, operating responsibilities, and failure modes—creating a clear basis for engagement with compliance teams and regulators.
02
Architect
Translate regulatory obligations into system architecture, controls, and integrations across keys, wallets, assets, transactions, and settlement.
03
Deliver
Build, integrate, and harden the infrastructure for production, audit, and ongoing operation.
Why 21Lab
Infrastructure depth.Product judgement.Operator mindset.
21Lab brings hands-on experience designing, building, and operating digital asset infrastructure where security, regulatory expectations, and production realities meet.
Full lifecycle
End-to-End Systems
Architecture across the full digital asset lifecycle—designed around one operating model rather than disconnected components.
Since 2019
Applied Experience
Building production infrastructure for crypto payments and digital assets in regulated environments since 2019—backed by more than 20 years in mission-critical systems.
Secure + operable
Production Discipline
Security, resilience, auditability, and operational control engineered in from the beginning.
Work with 21Lab
If the infrastructure has to work,let’s talk.
21Lab supports focused engagements spanning architecture, regulatory readiness, implementation, integration, and production hardening.