If you are not sure where your message belongs, write to hello@meridian.fi and we will route it. Every channel is monitored. Every message gets a reply.
For organizations applying for a private-preview slot. Use the application form for the fastest path. Acknowledgement within one business day.
For active design partners working through SDK or integration questions. Engineers respond directly. Every cohort 02 workspace has a paired solutions engineer for the first 90 days.
PGP key on file. Acknowledgement within 24h, initial triage within 72h. See the bug bounty for scope, payouts, and safe-harbor terms.
For interviews, embargoed briefings, and background. Founders are available Tuesdays and Thursdays via the press contact. Brand assets at press.html.
Open roles listed at careers.html. If you do not see your role but think you would be a fit, write a short note about what you have built.
For data subject requests, legal process, and partner contracting. We respond to legitimate process within statutory deadlines. Privacy and terms at legal.html.
Postal addresses listed above are correct for service of process and registered mail. Postal mail is digitized and routed to the relevant team within two business days. Do not send physical media containing sensitive information; use security@meridian.fi with PGP instead.
Meridian's only official Telegram is t.me/Meridianton and only X / Twitter is @Meridianton_xyz. We do not maintain Discord or WhatsApp accounts during the private-preview period. Anyone messaging you on those platforms claiming to be Meridian is not. Phishing attempts impersonating the protocol are tracked at security.meridian.fi.