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App Development Company

ERRNA

Blockchain development company building crypto exchanges, tokens, smart contracts and decentralised applications

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About ERRNA

Errna is a company that develops blockchain and cryptocurrency software for businesses. Its team builds decentralised applications, digital tokens and smart contracts, on public, private or mixed blockchains. It says it uses AI in its engineering work and holds a CMMI level 5 appraisal.

What Errna offers

  • Cryptocurrency exchange software — for firms setting up their own exchange platform.
  • Alternative coins and tokens — creation of new cryptocurrencies and digital tokens for asset ownership.
  • Smart contracts — for agreeing and running business contracts across borders.
  • Custom blockchain applications — public, private or hybrid networks.
  • Blockchain consulting — appointments for businesses unsure what the technology can do for them.

Who it works with

Enterprises and start-ups that want blockchain or crypto products, with clients worldwide.

Key facts

  • Certification: CMMI level 5
  • Approach: full lifecycle delivery, with clients owning the code

Profile written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

What the business tells TrustList

Certifications and partner status
Other recognised certification evidence sent

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