About us
We turn proof of work into a few taps.
1 Sign was built by people who know the frustration of lost paperwork, illegible job sheets and chasing customers for confirmation. We set out to make proof of completed work effortless.
Our mission
Every trade and service business needs a simple, reliable way to show a job was completed and signed off by the customer. Paper gets lost, photos get buried, and disputes cost time and money.
1 Sign gives field teams a fast, professional, mobile-first way to capture that proof — a signed, branded certificate delivered the moment the work is done, and a permanent record in your control panel.
Fast
A sign-off takes under a minute on site.
Professional
Branded certificates that reflect your business.
Reliable
Secure storage and a clear audit trail for every job.