Green Coin for Sustainable Technologies.

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DANNA Coin

4.3

Profile Overview
About Us
Locations
Services
Rating Overview
Reviews

Green Coin for Sustainable Technologies.

Profile Overview

ATTRACTIVE PRICING

Minimum Budget: > €1,000

Hour Rate: < €25

Company Size: 2-10

Founding Year: 2022

About DANNA Coin

Researchers working on sustainable technologies can use this blockchain platform to connect with a community focused on improving the environment and human health. Its token is designed to help fund green initiatives and scientific publications, combining cryptocurrency-based financial incentives with the measurable impact associated with green bonds. Those bonds will take the form of smart contracts linking projects that adopt the DANNA token.

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Locations

Barcelona

Parc Científic de Barcelona, 14

08028 Barcelona (ES)

+34935142218

Services

50%

Blockchain & Web3: 50 %
Digital Marketing: 50 %

Please note: The assignment of these data is based on estimates by Feedbax. These benefits are subject to change at any time at the discretion of the provider once it has adopted this company profile.

Social Media Marketing

50%

Instagram : 50 %
Influencer: 50%

Blockchain Applications

50%

Crypto Currencies: 50%
Auditing: 50%

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Rating Overview

Overall Rating

4.3

19 reviews

Rating distribution

RATING	PERCENTAGE	DISTRIBUTION
5 stars	80%
4 stars	0%
3 stars	0%
2 stars	0%
1 star	20%

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Reviews

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All Reviews

Mireia Bernaus August 2026

1.0

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Warning!! They don't update their hours on Google!! Call ahead to make sure they're open.

Google

Mark August 2026

5.0

The service was very friendly and professional! I highly recommend it.

Google

Knessed June 2026

5.0

Friendly staff and a good selection of coins. The prices are very reasonable.

Google

alba VB March 2026

1.0

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I won't be coming back—terrible service. Watch your wallet.

Google

Paweł R August 2025

5.0

The staff was very friendly and helpful. A very large selection of banknotes

Google

Gabriel Lopez August 2025

5.0

Google

Half July 2025

5.0

Brutal, yet friendly and kind service. He took the time to go through an entire box of coins to see if there was anything of value—without any ulterior motive and with complete sincerity. He provides appraisals with no obligation and does so thoroughly, even if it means “wasting” time, only to find that nothing of value is there (as was the case with me). Without a doubt, if I ever need to see a professional in the future, I’ll go to his store without a second thought.

Google

That's not right May 2025

5.0

A great family. Just like home. Excellent service. Top-notch professionals. Congratulations!!!!!!

Google

Javier Martínez Marchamalo (Visnú Alalah) April 2025

5.0

Very well signposted and easy to get to.

Google

Nicolas QUENTIN April 2025

5.0

Excellent, bon service, sympas

Google

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DANNA Coin

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About DANNA Coin