Development of secure, decentralized applications including smart contracts, NFT platforms, DeFi protocols, supply-chain traceability systems, token economies, private/permissioned blockchains, and Web3 solutions using Ethereum, Solana, Polygon, Hyperledger, and other leading blockchain frameworks.
RedDuck
Premier Verified
8 Reviews
$10000+
$50 - $99 / hr
10-49
Kyiv, Ukraine
RedDuck is a blockchain development company specializing in delivering comprehensive blockchain solutions, including smart contract development, distributed ledger technology, and decentralized application (DApp) development. Clients consistently praise their technical precision, proactive communication, and ability to deliver projects on time, with a 100% satisfaction rate highlighted across multiple reviews. Their expertise in blockchain technology and strategic product development is noteworthy.
Hola Tech
Premier Verified
8 Reviews
$5000+
$25 - $49 / hr
50-249
Ha Noi, Vietnam
Hola Tech is a blockchain development company that offers services like blockchain solutions, decentralized application development, and smart contract development. Their clients commend their ability to merge blockchain technology with industry-specific needs, achieving goals such as increased transparency and security. Reviewers consistently highlight Hola Tech's effective project management and timely delivery, with approximately 90% expressing satisfaction with their services and outcomes.
PixelPlex
Premier Verified
10 Reviews
$25000+
$50 - $99 / hr
50-249
New York, NY
PixelPlex is a Blockchain Development company specializing in Blockchain Solutions, Smart Contract Development, and Decentralized Application (DApp) Development. Reviews indicate a high level of expertise, with 100% positive feedback highlighting their professionalism, timely delivery, and exceptional communication. Approximately 60% of reviewers commend their innovative solutions and technical proficiency in the Blockchain space.
OmiSoft
Premier Verified
8 Reviews
$5000+
$25 - $49 / hr
50-249
Kyiv, Ukraine
OmiSoft is a Blockchain Development company specializing in Distributed Ledger Technology, Smart Contract Development, and Decentralized Application Development. The firm consistently receives high praise for its technical expertise, with 100% of reviewers noting OmiSoft's exceptional project management and timely delivery. Their commitment to security and user experience is frequently highlighted, with a transaction success rate above 91% and less than 1% account compromise reported.
K.R.O.K
Premier Verified
9 Reviews
$10000+
$25 - $49 / hr
10-49
L'viv, Ukraine
K.R.O.K is a Blockchain Development company offering services in smart contract development and backend integration, with notable expertise in Solana-based projects. The company consistently receives positive feedback, with 100% of reviewers highlighting their technical proficiency, seamless project management, and cost-effectiveness. Clients specifically commend K.R.O.K for delivering high-quality solutions on time and maintaining transparent communication throughout the project lifecycle.
Aegas
Premier Verified
10 Reviews
$25000+
$50 - $99 / hr
10-49
Kyiv, Ukraine
Aegas is a specialized company focusing on blockchain and distributed ledger technology, offering services such as cryptocurrency and decentralized application development. Their reviews highlight a 90% positive feedback rate, emphasizing seamless integration, strong project management, and expertise in Web3 solutions. Clients appreciate their value for cost and ability to enhance existing platforms with advanced blockchain features.
Superscript Systems Ltd
Premier Verified
9 Reviews
$50000+
$50 - $99 / hr
10-49
Langhorne, PA
Superscript Systems Ltd specializes in Blockchain Development and provides comprehensive Blockchain Solutions, including Smart Contract Development and Decentralized Application Development. Their client feedback is overwhelmingly positive, highlighting their adaptability, excellent project management, and ability to integrate complex technologies. Superscript Systems Ltd is commended for their capability to expand and enhance projects seamlessly, with 100% of reviewers praising their expertise and communication.
Webisoft
Premier Verified
10 Reviews
$5000+
$50 - $99 / hr
10-49
Montreal, Canada
Webisoft is a Blockchain Development company known for its expertise in creating scalable blockchain infrastructures and decentralized applications. They have received 100% positive feedback, with reviewers praising their technical fluency and strategic collaboration. Notably, 67% of reviews highlighted their ability to align blockchain technology with business needs, and 33% commended their proactive project management and adaptability.
NADCAB LABS
Premier Verified
10 Reviews
$1000+
$25 - $49 / hr
50-249
Prayagraj, India
NADCAB LABS is a blockchain development company specializing in blockchain solutions, smart contract development, and decentralized system development. Reviews indicate high client satisfaction with timely delivery, responsive project management, and tailored blockchain technology solutions. Notably, 100% of reviews highlight their expertise and client-focused approach, with no negative feedback reported.
Synodus
Premier Verified
9 Reviews
$5000+
$<25 / hr
250-999
Hanoi, Vietnam
Synodus is a Blockchain Development company specializing in Distributed Ledger Technology, Smart Contract Development, and Decentralized Application (DApp) Development. They have received 100% positive reviews, emphasizing their transparent delivery process, exceptional project management, and strong alignment with client values. Clients praise their expertise in developing customized blockchain solutions, consistently meeting deadlines and exceeding expectations.
Creating secure, decentralized systems for transactions, smart contracts, NFTs, or supply chains using blockchain tech like Ethereum or Hyperledger.
Finance for crypto/DeFi, supply chain for traceability, healthcare for secure records, gaming for NFTs, and voting for tamper-proof systems.
Simple smart contracts take 2–5 months; full DApps or platforms often 6–12 months.
Basic projects range from $40,000–$100,000; advanced solutions commonly cost $150,000–$500,000+.
Yes — immutable ledgers prevent tampering, with cryptography ensuring data integrity and public visibility where needed.
Yes — in supply chains or finance, it verifies authenticity and tracks every step, reducing counterfeits or disputes.
Yes — via APIs or wallets, connecting to web/mobile apps for seamless user experiences.
Modern solutions use layer-2 tech or sharding to handle high transactions without high costs or delays.