Finish the paperwork before your coffee gets cold
Tungsten is certification software purpose-built for EASA Part 21J design offices. Structured document workflows, approvals, and audit trails — so your engineers can focus on engineering, not pushing paper.
Still drowning in the paperwork labyrinth?
Still drowning in the paperwork labyrinth?
If any of this sounds familiar, you're not alone. Most Part 21J offices are still fighting the same battles.
Printing, signing, scanning — repeat
Endless cycles of printing documents for wet signatures, scanning them back in, and hoping nothing got missed along the way.
That sinking feeling on page 87
One misplaced reference, one wrong revision number — and the whole submission gets bounced. Hours of rework for a preventable mistake.
Your best hours, wasted
Airworthiness engineers with years of specialist knowledge, spending their days reformatting spreadsheets and chasing signatures instead of engineering.
Designed for Part 21J Design Offices
Designed for Part 21J Design Offices
Tungsten isn't another system to learn — it's purpose-built for the regulatory landscape your team navigates every day. Structured compliance without rigid tools getting in the way.
- StreamlinedStandardise and automate the repetitive data collation process. Step by step processes guide you through the certification maze to produce high quality data packages ready for submission.
- FlexibleUse Tungsten on the go — create a project while surveying the aircraft. Web-based and platform independent, it runs equally well on any modern browser, tablet or mobile device.
- RewardingA highly structured method for creating and storing project data allows you to benefit from submissions that are easy to read, more compliant, and lead to a trustworthy certification system.

Built for aerospace engineers, by aerospace engineers.
Everything your design office needs
Everything your design office needs
Individually written reports and repetitive data collation can lead to incoherent and untrustworthy submissions. Tungsten replaces spreadsheets, shared drives, and disconnected tools with one purpose-built platform.
- Document ManagementVersion-controlled documents with structured approval workflows. Upload, review, approve, and publish — all in one place.
- Snapshot ReviewsCapture project state at any point for formal review. Compare snapshots to track progress and ensure nothing was missed.
- Task TrackingAssign certification tasks to team members with deadlines, priorities, and status tracking. Never lose sight of what needs doing.
- Activity LogsEvery action is recorded in an organisation-scoped audit trail. Know who did what, when, and on which project.
- Role-Based AccessFine-grained permissions ensure engineers see what they need and approvers control what they should. Configurable per organisation.
- Powerful SearchSearch by type of project, classification, or keyword descriptions. Project data can be entered or reviewed in multiple ways, giving you complete flexibility and control.
The engineer's shortcut to EASA compliance
The engineer's shortcut to EASA compliance
Tungsten replaces the chaos with a clear, structured path from project creation to authority submission.
01
Create Your ProjectSet up a certification project, define the scope, and invite your team. Tungsten creates the structure — you focus on the engineering.
02
Manage Documents & TasksUpload documents, assign review tasks, and track approvals through structured workflows. Real-time collaboration keeps everyone aligned.
03
Review, Approve & DeliverTake snapshots for formal review, capture approvals with audit trails, and deliver compliant documentation packages to authorities. Reports are digitally signed, saved and secured for future reference.
Simple, transparent pricing
Simple, transparent pricing
One plan, one price. No per-seat charges, no feature gates. Your entire design office gets full access.
Design Office
Full platform access for your entire EASA Part 21J organisation.
£500
/monthBilled annually
- Unlimited users and projects
- Document management with approval workflows
- Snapshot reviews and audit trails
- Task tracking and assignment
- Role-based access control
- Full-text search across all data
- Priority email support
Enterprise
For large organisations needing custom deployment or integrations.
£1,000
/monthBilled annually
- Everything in Design Office
- Dedicated account manager
- Custom integrations and API access
- On-premise deployment option
- SSO / SAML authentication
- Custom training and onboarding
- SLA with guaranteed uptime
Trusted by certification teams
Trusted by certification teams
Hear from airworthiness engineers who rely on Tungsten to keep their certification programmes on track.
We cut our certification admin time by over 60%. Our team now focuses on engineering, not chasing paperwork across shared drives and overflowing inboxes.
James Hartley
Chief Engineer, Part 21J Design Office
Having everything in one place — projects, documents, tasks, audit trails — means we spend less time chasing paperwork and more time engineering.
Sophie Laurent
Airworthiness Engineer
The snapshot review feature is brilliant. We can freeze project state for EASA submissions and compare progress between milestones effortlessly.
Marcus Weber
Head of Design Organisation
Frequently asked questions
Frequently asked questions
Everything you need to know about getting started with Tungsten.
Ready to escape the paperwork labyrinth?
Ready to escape the paperwork labyrinth?
Stop fighting with documents. Start engineering again.
No credit card required Up and running in a day EASA Part 21J compliant