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Contact

Talk to the people who would do the work

One inbox, one phone number, answered by engineers during Tallinn office hours. For a scoped project enquiry, the consultation form gets you a more specific reply.

Direct contact

  • Emailadmin@zero21ou.com
  • Phone+372 5123-4567
  • Registered office
    Kaupmehe tn 7-115
    10144 Tallinn, Kesklinna linnaosa
    Harju maakond, Estonia (EU)
  • Office hoursMon–Fri, 09:00–18:00 Europe/TallinnReplies within one business day.

Invoicing & legal entity

Legal name
021 OÜ
Registry code
11728851
EU VAT number
EE101488194
Registered address
Kaupmehe tn 7-115, 10144 Tallinn, Kesklinna linnaosa, Harju maakond, Estonia
Invoicing currency
EUR
VAT treatment
Reverse charge for VAT-registered business customers in other EU member states.
Verify these details in the public register

Optional

Scoping a specific project? The IT consultation form captures the technical detail we would otherwise have to ask for, and produces an indicative engagement shape before you send it.