General and contract work
Questions about the company, and projects to discuss.
contact@hyperionlabs.rsContact
Write to Hyperion Labs
Every message is read and answered by a person. Email is the only channel; the site has no forms to fill in.
Sigil sales and support
Licenses, invoices for Sigil, and help with a server.
support@sigilchat.comVulnerability reports
The reporting policy is on Sigil's security advisories page.
security@sigilchat.comOrganizations
Quotes, purchase orders and data processing agreements go to the address for the matter, Sigil or contract work.
Company details
The registration number and tax ID for invoices are on the About page.
Where mail is kept
Mail to hyperionlabs.rs and sigilchat.com is hosted by Proton in Switzerland.