Blockchain Development

Blockchain Consulting, technical development for Initial Coin Offerings and Decentralized Applications, Public and Private Blockchain Development. We provide the best possible service using the latest and top-notch technology stack.

Blockchain Development Practice Highlights


We are experts in developing distributed applications (dapps). Being part of the technological revolution is allowing us to build the technologies of the future. Our team is passionate, motivated, fully distributed international and fast growing.

Private and Public Blockchain Development

Implement cryptography-based technologies to store immutable data.


Smart Contracts Development and Audit

We develop and audit smart contracts which are cost-saving, verifiable, self-executable and auto-enforcing.

Crowdsale Services

We offer our blockchain and smart contract development expertise building the technical part of your ICOs/STOs to help you fundraise your business endeavor.

Blockchain Consulting

Our consulting services are helping projects define their decentralized application or blockchain architecture, smart contracts utilization, crystallize the use-case idea they have.

Industries is Likely to Disrupt


Blockchain tech has come a long way from just being a buzzword to a real-world solution that is being widely adopted & used across a diverse set of industry verticals. Fueled with secure and decentralized protocols, Blockchain has the potential to trigger rapid progress across virtually every industry. Mentioned below are some of the industries Blockchain is set to disrupt in the coming future.

Real Estate

Retail & E-Commerce

Transportation & Logistics

Media & Entertainment


Travel & Hospitality


Blockchain Software Development



Whether through the creation of decentralized applications or support of a private blockchain, our experienced blockchain developers help clients take advantage of the numerous opportunities that the emerging technology has to offer.


Blockchain provides alternative options for digital security, using familiar cryptography but with unchangeable data. Work with us to understand how your company can use blockchain as a means to secure data and enhance the trust verification processes.


Smart contracts are programmed contracts that utilize execution in a distributed environment for enforceability. These can variously be used to support crowdfunding, blind auctions, multi-signature wallets, and more.


Companies are turning to Ethereum, a blockchain-based platform, for broader applications of trust verification beyond just cryptocurrency including smart contracts (powered by the programming language Solidity).


Aeternity allows the development of smart contracts interacting with real-world facing data. It is a scalable blockchain providing state channels and oracles as first-class objects.


Created by the Linux Foundation, Hyperledger is a project of open-source blockchains and related tools. We have experience in Hyperledger blockchain platforms like Fabric and Sawtooth, and tools such as Cello.

Smart Contract Development


One of the key social and economic problems that blockchain solves is that it removes the need to use and pay intermediaries or other middlemen involved in a transaction. It is a decentralized system and it exists between all permitted parties, and it saves time, effort, and conflicts. Blockchains also have their problems, but they are faster, cheaper, and more transparent and secure than traditional systems that we’ve used to use. This is why big enterprises, governments, and banks are starting to see its potential and incorporating their usage.



  • Self-executable and auto-enforcing – as agreement terms are stored in the code, the smart contract automatically enforces the execution of the rules after being triggered by action from parties involved
  • Immutable – being stored on a blockchain they are immutable
  • Verifiable and Safe – the code is transparent and can be verified and it is cryptographically safe
  • Cost saving – removing intermediaries leads to saving costs and fees
  • Speed – smart contracts can be used for automating business tasks, thus saving hours of paperwork
  • Autonomy – removes the need of third parties or escrow/broker agents


Initial Coin Offering


Initial Coin Offering (ICO) or initial currency offering is a way for a company, startup or individual to raise money by crowdfunding for a blockchain-based project they are developing. Investors are invited to assist the project by purchasing coins or tokens that they will use in the future after the project’s idea is developed and ready to use.

This type of crowdfunding – ICO is currently still in its early stages, but it revolutionizes and disrupts the traditional VC industry. Startups are allowed to present their idea and publicly attract investors.

Initial Coin Offering emerged as a term with the first token sale of Mastercoin back in 2013, and later Ethereum raised money with a token sale in 2014. Nowadays it’s popular, and looks fairly easy, to raise money through ICO, but there is a lot to be considered and taken note of before taking this road

We provide development services for Initial Coin Offerings. If you have the next big idea – drop us a line and schedule a FREE consultation to discuss the potential benefits and virtues of ICO and validate your idea!


Blockchain Consulting


As the primer company offering blockchain development services in Bulgaria, we have large and extensive experience in the field of decentralized blockchain-based applications.

We at Passion4Tech specialize in advisory and consulting for small, medium and large enterprise companies interested in blockchain technology. Our company is a pioneer in driving business adoption in blockchain and distributed ledger technologies across industries.

Our blockchain consulting services are helping projects define their decentralized application architecture, smart contracts utilization, crystallize the idea behind the particular use case they have, and advise on the token economy (tokenomy) behind their product. We’ve got to work closely with members, core-developers as well as founders of some of the biggest public and/or private blockchain networks, infrastructures, and solutions such as Hyperledger Foundation, Ethereum, and Aeternity blockchain, which are actively involved in the whole blockchain ecosystem and community.

This experience allows us to provide our clients with an expert insight into the space of blockchain and determine the most valuable blockchain solution and implementation for their business needs.

We work closely with our clients to help them define and achieve a successful strategy with a focus on blockchain development, implementation, and adoption.

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