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25+ best blockchain development companies in 2020

Anna Geletska

Anna Geletska is a senior IT analyst and eCommerce marketing expert. She’s happy to provide qualitative software estimation or compile a company profile when it is deserving.


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Looking for best blockchain companies to hire or to invest in? If you are a business owner or Chief Technology Officer, it could be a good strategy. Bitcoin and blockchain technology remain the red hot topic and brand new phenomena with the potential to change the financial sector for years to come.

To explain blockchain we would have to a whole separate article or two, and our purpose here is to list top blockchain developers. Though, to jam it in briefly, Blockchain is a software platform for digital financial assets, where you can store, send and receive cryptocurrencies, like Bitcoin. It all started with Bitcoin.

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A brief introduction to blockchain

Blockchain is the high-end technology that verifies digital transactions. In technical terms, blockchain is a series of records/data (blocks), linked in a chronological order and encrypted. This way, data inside is secure, decentralized and impossible to modify.

In other words, online security and resistance to changes are two pillars of blockchain. Every transaction has a key, thus any efforts to alter a transaction sound an alarm by default. Mining is the process of verification and adding new transactions.

 A blockchain developer is typically someone who is a software programmer, first, with knowledge of data structures and architectures, plus some of the blockchain tools, like Ethereum, Hyper Ledger, etc. To help you out and save you time, we’ve prepared a list of best blockchain companies.

Top blockchain developers list

01 of 26


Itransition is one of the leading blockchain development and consulting companies, with over 2200 experts on board. The team aims to provide profitable blockchain and ICO solutions for healthcare, eCommerce, banking and finance, e-learning, and manufacturing businesses.

Itransition Blockchain development

Itransition is highly experienced with over 20 years on market and portfolio with more than 800 satisfied clients. The main company specification covered blockchain development and consulting services, as well as smart contract implementation and audit. The Itransition team works with Ethereum, Bitcoin, Ripple, Hyperledger, Chain, MultiChain, and TIERION Blockchain platforms.

Specialty: blockchain development, blockchain consulting, smart contracts
HQ: Colorado, USA / Founded: 1998 / Employees: 2,200+ / Contact:

02 of 26


Modex is a trusted blockchain development company that delivers fast, robust, and easy to integrate solutions. Modex’s experts provide development, customization, and integration of blockchain-based solutions. The company offers blockchain consulting and technology support for smart contract implementation and development of Blockchain database solutions for enterprises. The team of over 80 professionals provides services for clients from such industries as tech, telecom, eCommerce, retail, and entertainment. 

Modex blockchain developmentSpecialty:  blockchain development, smart contracts, blockchain database solutions.
HQ:  London, UK / Founded: 2017 / Employees: 80+ / Contact:

100% blockchain-devoted company from Norway, helping other businesses comprehend and use the technology, with “the Nordic” approach. What does it mean? In short, while blockchain emerged out of Bitcoins in Silicon Valley with the aim of removing governmental control and regulation, Scandinavians do believe in a functioning state apparatus and, in fact, await the regulations to be put in place by governments.

The team of Blockchangers works to promote blockchain and cooperates with private and public institutions to define the future ideology of it. So, according to such strategy, they provide advisory, lectures and workshops (Oslo blockchain day), as well as development services to clients. Those are DNB Bank, Lyse, Datatilsynet, Trigger, Kantega, and more.

Specialty: blockchain development, Ethereum, Truffle, banking software, front-end services.
HQ: Oslo, Norway / Founded: 2015 / Employees: 6 / Contact: +4740870027.

04 of 26


Exyte is a team of ambitious developers from the USA, one of the main areas of expertise of which is blockchain. They are experts in Solidity, JavaScript and Python, which allows them to work freely with many frameworks, including Ethereum JavaScript API, OpenZeppelinOS, Truffle and others. Their portfolio includes dozens of successfully completed projects, including web games and cryptocurrency applications. They also use blockchain technologies to create smart contracts based on ERC20, ERC223 and ERC721 standards.

Specialty: smart contracts, cryptocurrency, blockchain development, mobile development.

HQ: New-York, USA / Founded: 2014 / Employees: 100+ / Contact:


05 of 26


Altoros is a one-stop provider for those who are looking for private blockchain professional services and training to be delivered by a trusted service partner. With vast expertise in delivering workable solutions for blockchain implementation, the company helps organizations deploy private blockchain networks built on Hyperledger frameworks.

As a Hyperledger Trusted Training Provider, Altoros trains business and technical people to let them get maximum value from the technology.

If you are looking for a PoC, MVP or a production-grade solution for finance, insurance, supply chain, healthcare, and other industries, Altoros is the right choice.


Specialty: private permissioned blockchain, training, technical and business consulting, blockchain architecture design, smart contracts, chain code, blockchain-based product development, fabric, sawtooth, indy, Ursa, cryptography

HQ: Sunnyvale, CA / Founded: 2001 / Employees: 500+ / Contact: +1(650)265-2266.

06 of 26


LeewayHertz has been recognized as IBM Blockchain Development Partner for deploying over 5 blockchain platforms and 80 plus smart contracts. They are also known as Hedera Hashgraph Ambassador and Hyperledger Core Team Member.

LeewayHertz development company

They provide end to end solutions to build enterprise-grade blockchain applications. They are experienced in the development of multiple blockchain applications for Global Supply Chain, Identity Solution on blockchain and utility bill generation using blockchain and many more.

LeewayHertz has 10 years of experience building over 100 enterprise-grade digital platforms that are being used by millions of users across the world. An experienced blockchain development company with a deep understanding of AI, IoT, and cloud services.

Specialty: Blockchain development on different frameworks, smart contracts, dApp.
HQ: USA / Founded: 2007 / Employees: 250 / Contact:

07 of 26


Ezetech is a web development agency from NY helping founders get their blockchain off the ground. The scope of their services covers initial planning and product scoping, software architecture, compliance, digital strategy, developing MVPs, further product development (iteration), and maintenance. While their team has deep expertise in a broad range of technologies, they are nonetheless focused on a given client’s business case, developing the most practical and award-winning blockchain solutions.

Custom Ezetech development company

Specialty: blockchain, cryptocurrency, web development, crypto-exchange, wallets.
HQ: New York, USA / Founded: 2015 / Employees: 35 / Contact: 855-323-3722.

08 of 26


TheBlockBox is a US-based company that provides high-performance blockchain solutions for a wide range of industries, such as AI, IoT, healthcare, gaming, transportation, finance and more. Its team of security & blockchain specialists has strong expertise in developing Smart Contracts, MVP, CTO, Crypto Wallets, Crypto Exchanges, and Private Blockchain applications.

blockchain company USA

As well the company provides services in Blockchain consulting such as Use case analysis, Blockchain training, and Product design. The company’s proprietary framework helps them to design, develop and deploy blockchain code faster, qualitative, and efficiently. Moreover, TheBlockBox also offers security & auditing services as well as blockchain consulting.

Specialty: blockchain, cryptocurrency, crypto-exchange, wallets, CTO, smart contracts, auditing, security, consulting.
HQ: San Francisco, USA / Founded: 2018 / Employees: 11-50 / Contact: +1(415)779-3341,

Treehouse Technology Group’s (TTG)’s world-class Blockchain services team is at the forefront of this revolutionary technology poised to transform the world of business. TTG leverages its years of enterprise-wide data and application development that supports thousands of users from start-up to Fortune 500 companies by developing highly secure and reliable Smart Contracts using Solidity, Ethereum, and Proof of Stake Algorithm.

TTG also offers comprehensive token services for companies at any stage of development. They work with clients on the development of white papers for ICOs, offering robust knowledge on the underlying technology that supports the service’s capabilities. TTG specializes in the architectural planning of tokens, from building out a plan and conducting a technical feasibility study to feature set documentation and best practice implementation.

development company TTTG

TTG’s security, auditing and consultation services provide clients with unit testing and code review to ensure alignment with best practices and compliance with ERC-20 token standards. They also create test cases, run automated and manual tests, and document results.

Specialty: software development, blockchain development, smart contracts, Ethereum.
HQ: Boston, MA / Founded: 2014 / Employees: 20 / Contact:

10 of 26


Chain is a US-based blockchain development company creating cryptographic ledger systems for the financial sector specifically. They have pretty solid support from strategic partners like Capital One, Citigroup, Nasdaq, and clients such as Visa, Orange, Fiserv, RRE Ventures, as well as numerous startups.

And they have things to be proud to showcase, for instance, Sequence ledger-as-a-service for secure tokens transactions. It works both for private ledgers and public networks, and it is currently used for mobile wallets, a crypto exchange platform, a ride-sharing app. Another example is a virtual transaction machine called TxVM – also a blockchain ledger service aimed at eligible state changes throughout different blockchains.

Specialty: blockchain, distributed systems, cryptography, payment systems, ledger technology.
HQ: San Francisco, USA / Founded: 2014 / Employees: 40 / Contact: not specified.

11 of 26


ChromaWay started in 2014 with headquarters in Stockholm houses blockchain experts working with financial institutions, real estate companies, governmental agencies to provide smart contract solutions. Abiding by their motto is “the era of digital government is here” Chromaway’s main focus is blockchain as a database.

Thus, they introduced Postchain – a consortium database which is a distributed database management tool with distributed control. But that’s not all, as those guys are really creative and skilled.

Other great work includes E-Krona – a brand new e-currency (project by the Swedish Central Bank), SofiWay – a blockchain network for immediate and direct payments between individuals, the Universal Identity Hub – a project for gender equality and safety, Green Assets Wallet – a platform for “green”  investors to improve deals on the Paris Climate Agreement, via verification and validation infrastructure, in particular.

Specialty: blockchain development, tokenization, digital currencies, consortium databases.
HQ: Stockholm, Sweden / Founded: 2014 / Employees: 13 / Contact: +460850636338.

Quest Global Technologies is a software consulting firm working in blockchain. A team of blockchain developers with expertise in POW, POS, DPOS, ERC20, EOS, SHA256.

Specialties: cryptocurrency development, Bitcoin app development, Altcoin, Hyperledger, Ethereum, ICO, exchange software.


HQ: Indore, India / Founded:2013 / Employees: 50 / Contact:

13 of 26


LimeChain is a blockchain development and consulting studio based in Sofia (Bulgaria) with extensive experience in building blockchain solutions for startups and corporate clients. The company is founded by four friends, who are driven by the philosophy that results speak for themselves.

LimeChain is determined to help pioneer the development of blockchain technology not only locally but also on a global level. Founded in November 2017, LimeChain already has established a solid client base with a portfolio of companies which include P&G, Raiffeisen BANK, SEED, Propy, Arxum, Mogul, Steel Trace, Celo, and more. Since December 2019, LimeChain is a Hyperledger certified partner.


Specialty: public and private blockchain development, smart contracts development and audits, decentralized application development, tools development, DAOs and DOs, token and wallet creation.
HQ: Sofia, Bulgaria / London, UK / Founded: 2017 / Employees: 35 / Contact:

14 of 26


One of the largest software companies, literally – with over eight hundred people and offices around the globe, Dotsquares’ work includes mobile apps, websites, CRMs, blockchain, digital marketing, big data, etc. They service to industries such as automotive, retail and e-commerce, financial sector, healthcare, media, manufacturing, logistics. As proof of high-quality work, they have certifications from Google, Microsoft, Salesforce, ISO 9001, Association of outsourcing professionals, Agile Alliance.

Concerning blockchain, it is now the company’s second top priority field after mobile apps. They have jumped into a fast-moving wagon, realizing a huge potential in today’s trending tech like IoT, Augmented Reality and Virtual Reality, and blockchain. Their experts are also trying to solve an issue with supply chain automation with the use of blockchain technology. So let’s give them a benefit of trust to be included in the list of top blockchain developers. For now 🙂  

Specialty: mobile apps, IoT, web development, blockchain, e-commerce, Java, Flash, PHP.
HQ: Albourne, UK / Founded: 2002 / Employees: 834 / Contact: +441273575190.

CryptoSoftwares by iOSS is a leading blockchain and cryptocurrency development service provider based in India serving globally with extensive experience in blockchain applications for startups and MNCs around the globe, who concentrates on different sectors like finance, healthcare, etc. Our team of experienced professionals has in-depth knowledge of building Decentralized Blockchain applications on various frameworks like Hyperledger, Ethereum, etc.

SpecialtyBlockchain application, ERC20 token, cryptocurrencies and exchange platforms, ICO.
HQ: Calicut, India / Founded: 2009 / Employees: 100 / Contact:

30% of all efforts and work devoted to blockchain – that’s the quite impressive focus along with developing and designing mobile apps and web solutions. FreshWorks Studio from Canada (Victoria and Vancouver) claims to be enthusiastically working in areas of blockchain development and artificial intelligence (AI).

So they try to incorporate a decentralized app approach into software products, helping clients implement up-to-speed smart technologies. Those clients mostly are local Canadian institutions like CGI, City of Victoria, Lifecare, Quartech, Ministry of forests and lands.

blockchain developers

Specialty: mobile/web development, blockchain, Bitcoin, Ethereum, Zoho, e-commerce.
HQ: Victoria, Canada / Founded: 2014 / Employees: 42 / Contact: +2504123470.

17 of 26


Kamtor is a Blockchain-focused company that provides advanced solutions based on private and public blockchains such as Hyperledger, R3, EOS, Ethereum, and others. Kamtor was founded in 2017 in a response to very high demand for developers in the technologically complex and trending sector – Blockchain. For a relatively short period of the company’s existence, Kamtor’s team has built a high-class infrastructure, focused on results and clients’ satisfaction.

Kamtor - IT Development Company

Specialty:  Blockchain development, smart contract audit, ICO, cryptocurrencies.
HQ: Tallinn, Estonia / Founded: 2017 / Employees: 30-40 / Contact: +372 880 45 47.

Mobile development, design, IoT, cloud computing, AI, Augmented Reality and, clearly, blockchain – all these innovative areas of work definitely make IntellectSoft one of the top blockchain companies as of 2018. They employ blockchain experts to help clients build secure business tech products via ‘ledger distribution’ technologies of blockchain and smart contract protocols.

They work in both private and public blockchain development, as well as create decentralized applications, smart contracts, e-commerce solutions, cryptocurrencies. Tools of choice are Hyperledger, Ethereum, Parity, Exonum, NXT, MultiChain.

For instance, they’ve successfully developed apps such as “Virtual Currency” (blockchain-based virtual currency), “Cryptocurrency Wallet” (peer-to-peer payments platform for Ethereum and Bitcoin), “Online E-Commerce Marketplace”, a blockchain online marketplace.

Specialty: blockchain consulting, public and private blockchain, dApps, smart contracts.
HQ: Palo Alto, USA / Founded: 2007 / Employees: 255 / Contact: +16503004335.

Ftechiz Solutions is a blockchain development company, mobile app development company, based in India. Established in 2016, Ftechiz Solutions, with it’s dedicated and skilled team of professionals, is able to launch cost-effective solutions.


Specialty: Ethereum, blockchain, cryptocurrency, mobile developers, web developers.
HQ: Uttarakhand, India / Founded: 2016 / Employees: 50 / Contact: +917534078989

20 of 26


ABES is the dedicated lab of R&D experts for blockchain technologies of Philadelphia based software development company Aplana Software Inc. The company is focusing on researching and implementing blockchain solutions for enterprise customers worldwide.

ABES Lab offers a unique set of integrated blockchain solutions helping to modernize business areas where Blockchain technology has the most value: contracts management and execution; payments inside the ecosystem of partners and suppliers; sourcing and tendering; digital supply chain management.

The consultants of ABES Lab get into the details of customers’ business and offer the best blockchain-based solution that makes business processes the most effective. The current solutions of ABES lab help to transform the contract management process from time-consuming manual work into a fully standardized automatic process of creation, approval and execution tracking; to upgrade internal budget planning, distribution, and execution by using innovative digital currency approach; to make sourcing process completely transparent.

Specialty: Blockchain consulting, architecture design, smart contracts, app development.
Technology areas: Blockchain (Ethereum, Solidity, Hyperledger,  DApps), Mobile (iOS, Android, React native), IoT & Analytics, Cloud (Amazon, Microsoft).
HQ: Philadelphia, USA / Founded: 2017 / Employees: 18 / Contact: +1 (267) 669-0669.

Sofocle Technologies is a leading player in the Blockchain space. Established in 2016, the company is focused on building innovative blockchain-based enterprise solutions for businesses across different industry verticals primarily Finance, Health, and Manufacturing.

The company works on developing custom blockchain solutions for enabling enterprises to streamline their business processes by enhancing security, authenticity, and transparency of every transaction happening within the business ecosystem.

Apart from Blockchain consulting and Blockchain development services, Sofocle also offers robust solutions that are designed to deal with the pain points of the supply chain financing (sofoCap), supply chain tracking (sofochain) and automated claim settlement (sofoinsure) industry.
HQ: Mumbai, India / Founded: 2016 / Employees: 45 / Contact+91-9821769996

An offshore software development company with a focus on high-end technologies that include blockchain, of course, AI, enterprise resource planning programs, live video streaming, etc. But their prime focus is a cryptocurrency and all things related.

This ranges from ICO development and campaigns, cryptographic apps to escrow services, tokens, secured networks. Industry focus is clearly fin-tech – working on secure communication, authentication, and financial transactions.

Specialty: Bitcoin development, SaaS, Groovy Grails, Node.js, jQuery, Apache, Hadoop.
HQ: Gurgaon, India / Founded: 2009 / Employees: 250 / Contact: +911244368395.

Believing in open-source technologies, this US agency adopts the agile methodology and work on blockchain software solutions, as part of the so-called “hybrid software development model”. They can be proud of 12 years of market experience, the team of over 100 certified developers, and inclusion into the Fortune 500 list.

Based on successful projects in 10 key industries, Sphere Software provides end-to-end blockchain solutions. Buzzfeed, Tumblr, Nokia, Sears, Groupon, ING Bank, Chicago Stock Exchange and many more entrusted projects to this company.

Five major services you can expect from this blockchain company are as follows. First, typical blockchain development – consulting, building and maintaining. Second, Hyperledger consulting, advising on best practices of blockchain tools and especially the one aforementioned, its capabilities, features, advantages.

Third, tokens – numbers generated by special algorithms to protect your company from fraud. How to substitute sensitive data with tokens, how to transmit it online, etc. Fourth, creating cryptocurrencies, and fifth, smart contracts – to implement agreements with Ethereum protocol.

Specialty: blockchain, Hyperledger consulting, Agile mobile apps, web apps, chatbots.
HQ: Chicago, USA / Founded: 2005 / Employees: 101 / Contact: +8886774373.

Truly one of the best blockchain companies and one of the most devoted to this modern technology. In addition to mobile app development, the Sybite engineering team is tightly focused on blockchain, initial coin offering, smart contract, and all other related services.

They work both for enterprises and startups – for which they apply a specially dedicated team, they call it “incubation cell”. What is also impressive, is that Sybite claims a 100% performance guarantee and offers 12 months free support period. Key clients are and were Pfizer, Reebok, World Countryside, JCI.

Specialty: blockchain, smart contracts, ICO, Solidity, e-wallets, crypto-exchange, smart tokens.
HQ: Bristol, UK / Founded: 2010 / Employees: 25 / Contact: +442081232329.

25 of 26


Unicsoft, based in the United Kingdom and the USA, is a blockchain development company, though they predominantly hire experts from Eastern European countries. With 12 years of experience and hundreds of projects, the company offers a wide range of services related to blockchain and digital currencies.

They’ve worked for industries like automotive, e-commerce, fitness/healthcare, entertainment, games, marketing. If you’re looking to hire a competent agency to implement blockchain, they’ve got all you need: from ICO consultation, tokens, digital wallets, smart contracts to tools like Hyperledger, Parity, Solidity, MultiChain, Ethereum.

blockchain development company

Specialty: ICO consulting, blockchain, smart contracts, AI, tokens, cryptocurrencies.
HQ: Edinburgh, UK / Founded: 2005 / Employees: 54 / Contact: +16504511106.

26 of 26


Brights is a Ukrainian software development agency that consists of over 70 team members, 30 of which are focused on blockchain projects. As a company, that provides best-in-class services, Brights specializes in creating advanced blockchain solutions using its own technologies and plugins. At the same time, Brights can unite blockchain solutions with AI and ML implementation, responsive UI/UX, notification system, chatbots.

The company creates all types of web and mobile products from scratch for large companies as well for startups. By the way, Brights had already implemented more than 350 projects. By providing a customer-oriented approach, the company aims to serve consumer products/services, finance/fin-tech, health, education, advertising, marketing industries.

Brights blockchain company Ukraine

As an example of blockchain development by Brights, see Cryptonomics – an investment platform resistant to high-loads. It contains a large number of investment tools and is designed to sustain transaction data integrity. Lots of analytical features were implemented as well, e.g. investment package selection, performance tracking, referrals tree, timeframes analysis, etc.

Specialty: mobile/web development, blockchain, AI, ML.
HQ: Ukraine, Kyiv / Founded: 2011 / Employees: 70+ / Contact: +38044- 2274262.

Final words

The list is neither ultimate nor objectively accurate. Each company is different and evolving, its 100% up to you to choose the best blockchain company according to your exact business requirements. 

Want your company listed and get more qualified leads? Contact us:
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About author

Anna Geletska
Anna Geletska

Anna Geletska is a senior IT analyst and eCommerce marketing expert. She’s happy to provide qualitative software estimation or compile a company profile when it is deserving.

Anna Geletska is a senior IT analyst and eCommerce marketing expert with a bright analytical mind and attention to detail. She is constantly booked to provide profound software evaluation and market research for promising and prosperous companies from various IT fields. Anna’s publications on ThinkMobiles blog are related to top lists and best companies’ selections.