Leave a Review For Providers 0 0
  • Post a Project
Home Blockchain Smart Contract Development Croatia Zagreb

Top Smart Contract Development Companies in Zagreb

Ratings Updated: April 3, 2026
We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust
Get Matched

4 Leaders 4 Contenders

8 Companies

Country: Croatia
City: Zagreb
Blockchain Focus: Smart Contract Development

List of the Top Zagreb Smart Contract Developers

  • Thespian Logotype

    4.9 7 reviews
    Premier Verified
    $10,000+
    $50 - $99 / hr
    10 - 49
    Zagreb, Croatia

    Services provided

    15% Blockchain
    30% Custom Software Development
    25% Web Development +2
    15% Enterprise App Modernization
    15% UX/UI Design

    Focus Areas

    30% Smart Contract Development
    30% Ethereum Development
    30% Web3 +1
    10% Initial Coin Offering Consulting

    Thespian is a Blockchain Development company specializing in Smart Contract Development and Blockchain Solutions, particularly on the Cardano blockchain. They are praised for their professionalism and clear communication, achieving a 100% positive feedback rate. Notably, 100% of reviewers emphasized the team's transparency and effective project management.

    See all 7 projects
    1 of 1 Smart Contract Development reviews is 5 stars
    $50,000 – $199,999 avg. project cost

    Smart Contract Development Experience

    Thespian has received overwhelmingly positive feedback for their Smart Contract Development services, with clients noting clear communication and professionalism. 100% of reviewers highlighted the team's ability to deliver projects on time and effectively manage transitions during development. Expertise in Cardano blockchain smart contracts and creating a robust online publishing platform were particularly praised. Clients valued their cultural alignment and budget-friendly pricing, indicating a strong overall satisfaction with 90% of feedback being positive.

    Read Most Recent Review

    Industry Experience

    Thespian has successfully delivered software solutions across various industries, including Non-profit, Education, Supply Chain, and blockchain technologies. Clients commend their professionalism, timely delivery, and proactive partnership approach, particularly in developing custom applications and platforms. In the Education sector, they have significantly contributed to revenue growth and customer satisfaction. The overall sentiment reflects high satisfaction with the provider's dedication and expertise, making them well-suited for organizations seeking reliable and innovative software development services.

    Read All Reviews

    Select Industry to see insights

    Software IT Services Healthcare Education Supply Chain, Logistics, and Transport Non-profit

    More responsive than most other service providers

    Thespian is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch

    View projects from:

    Croatia (2) Norway (2) Canada (1) Germany (1) Switzerland (1)

    This provider is fluent in 3 languages:

    • English
    • Croatian
    • Serbian
    View Profile Visit Website
  • SENLA Logotype

    4.9 19 reviews
    $10,000+
    $25 - $49 / hr
    250 - 999
    Zagreb, Croatia

    Services provided

    15% Blockchain
    20% Custom Software Development
    20% Web Development +4
    15% Mobile App Development
    10% BI & Big Data Consulting & SI
    10% E-Commerce Development
    10% IT Staff Augmentation

    Focus Areas

    80% Smart Contract Development
    20% Web3

    SENLA is a software development company specializing in custom software solutions, data management, and mobile and web applications. The reviews reflect a 100% positive sentiment, highlighting SENLA's technical expertise, reliable delivery, and strong alignment with client business needs. Approximately 40% of reviewers appreciated their project management and communication skills, emphasizing the company’s ability to adapt to client processes and requirements.

    See all 19 projects

    Industry Experience

    SENLA has demonstrated strong expertise across diverse industries including Insurance, Agriculture, Consumer Products, Advertising & Marketing, Financial Services, Gambling, Real Estate, Healthcare, IT Services, and Gaming. Their strengths lie in custom software solutions, data management, and agile project execution, with positive feedback highlighting their responsiveness, technical proficiency, and effective communication. Overall sentiment is favorable, particularly in Financial Services, where they excel in integration and quality assurance, making them a suitable partner for clients seeking tailored technological solutions.

    Read All Reviews

    Select Industry to see insights

    Gambling Insurance Agriculture Consumer Products Advertising & marketing Financial services Real estate Information technology IT Services Engineering Gaming Healthcare

    Average Project Cost Breakdown

    $50,000 to $199,999 (7) $200,000 to $999,999 (3) $1,000,000 to $9,999,999 (1)

    What Clients Have Said

    Clients generally perceive SENLA as offering good value for money, with many noting that their pricing aligns well with budgetary constraints. For instance, one client highlighted that SENLA's pricing fit their budget while providing great customer service and cultural alignment. Another client mentioned that their costs were about half of what an onshore provider would charge. Overall, the sentiment reflects satisfaction with the balance between cost and the quality of service delivered.
    Read All Reviews

    More responsive than most other service providers

    SENLA is very responsive

    They are a great candidate to start a conversation with. Send them a short message or project inquiry.
    Get in Touch

    Zagreb, Croatia

    Zaharova, 9, Zagreb
    Zagreb, Croatia 10000

    101 - 150

    See All Locations (3)
    View Profile
  • Async Labs Logotype

    5.0 15 reviews
    $5,000+
    $50 - $99 / hr
    10 - 49
    Zagreb, Croatia

    Services provided

    10% Blockchain
    20% UX/UI Design
    15% Custom Software Development +5
    15% Mobile App Development
    10% Content Marketing
    10% Digital Strategy
    10% Social Media Marketing
    10% Web Design

    Focus Areas

    50% Smart Contract Development
    50% Ethereum Development

    Async Labs is a versatile digital agency known for its expertise in brand development, web design, social media management, and digital marketing. Consistently praised for their professionalism, creativity, and project management skills, they maintain a high client satisfaction rate with a focus on delivering timely, tailored solutions. Notably, 100% of reviewers highlight their effective communication and client-focused approach, with no significant areas for improvement mentioned.

    See all 15 projects

    Industry Experience

    Async Labs has demonstrated expertise across various industries, including Construction, Beauty & Cosmetics, Arts & Entertainment, Sports, Education, IT Services, and Financial Services. Clients commend their strengths in branding, digital marketing, and application development. Feedback highlights their ability to enhance brand visibility, foster user engagement, and deliver user-friendly solutions. Overall, the sentiment is highly positive, indicating that Async Labs is well-suited for companies seeking innovative digital solutions in these sectors.

    Read All Reviews

    Select Industry to see insights

    Construction Beauty & Cosmetics Arts, entertainment & music Sports Education IT Services Other Industry Consulting Advertising & marketing Financial services

    Average Project Cost Breakdown

    $10,000 to $49,000 (6) $50,000 to $199,999 (5) Less than $10,000 (4)

    What Clients Have Said

    Clients consistently highlight Async Labs as providing excellent value for money, often citing their high level of service relative to cost. One client noted they chose Async Labs for their 'good value for cost' and reported flawless service, while another emphasized the company's 'individual approach and professionalism.' Despite some feedback suggesting that prices could be lower, the overwhelming sentiment is that the quality of deliverables justifies the investment, with several clients expressing satisfaction with the outcomes and ongoing support.
    Read All Reviews

    View projects from:

    Croatia (12) Estonia (2) Ireland (1)
    View Profile

    • Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

    Get My Matches
  • Dream Factory Logotype

    5.0 4 reviews
    $25,000+
    $50 - $99 / hr
    2 - 9
    Zagreb, Croatia

    Services provided

    15% Blockchain
    50% Custom Software Development
    10% BI & Big Data Consulting & SI +3
    10% Cloud Consulting & SI
    10% Web Development
    5% IT Strategy Consulting

    Focus Areas

    20% Smart Contract Development
    60% Ethereum Development
    20% Initial Coin Offering Consulting

    Dream Factory is a technology company specializing in software development with expertise in JavaScript, Java, Solidity, and smart contracts. Across various projects, 100% of clients reported satisfaction with their technical knowledge and project management. Clients highlight Dream Factory's ability to deliver high-quality solutions, meet project timelines, and offer valuable recommendations, making them a reliable partner for complex software development needs.

    See all 4 projects

    Reviews mention Reasonable pricing

    Client feedback highlights Dream Factory's reasonable pricing, particularly noting that their costs are competitive for the region. One client mentioned, 'Things could always be more affordable, but I wouldn’t mention that as a negative. They’re actually reasonably-priced for this part of Europe.' Overall, the sentiment regarding pricing is positive, with clients expressing satisfaction with the value received for their investment in the services provided.
    • Software Development for Organization Application
      5.0 Oct 21, 2020

      Everything was as we agreed, including the cost and timeframe. Since they were knowledgeable in this area, we appreciated Dream Factory’s input on how to solve certain problems. We’re satisfied with their advice and general ability to lead the project. Things could always be more affordable, but I wouldn’t mention that as a negative. They’re actually reasonably-priced for this part of Europe.

      Read Full Review
    Read All Reviews

    Industry Experience

    Dream Factory has demonstrated strong expertise in the Information Technology, IT Services, and Software industries. Clients highlight their proficiency in Java, JavaScript, and C++, particularly in building microservices, backend solutions, and SDKs. Overall sentiment across reviews is positive, emphasizing their technical knowledge, effective project management, and ability to enhance product functionality. Companies in need of advanced development services, particularly in software and web platforms, would find Dream Factory a suitable partner.

    Read All Reviews

    Select Industry to see insights

    Information technology IT Services Software

    Average Project Cost Breakdown

    $10,000 to $49,000 (3) $50,000 to $199,999 (1)

    What Clients Have Said

    Clients generally perceive Dream Factory as offering reasonable pricing relative to the quality of work delivered. For instance, one client noted that while costs could always be more affordable, they found Dream Factory's prices to be fair for the region, citing a project investment of approximately €50,000. Another client, who spent around $30,000, expressed satisfaction with the value received, highlighting the impressive quality of the MVP developed. Overall, feedback indicates a positive sentiment regarding the company's cost-effectiveness and value for money.
    Read All Reviews

    View projects from:

    United States (2) Canada (1) Slovenia (1)
    View Profile
  • Meliorate Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Zagreb, Croatia

    Services provided

    20% Blockchain
    15% Digital Strategy
    15% IT Strategy Consulting +6
    15% Video Production
    10% Branding
    10% Social Media Marketing
    5% UX/UI Design
    5% Web Design
    5% Web Development

    Focus Areas

    70% Smart Contract Development
    15% Ethereum Development
    15% Initial Coin Offering Consulting

    Meliorate is a Blockchain company. Their team is based in Zagreb, Croatia. The agency specializes in Blockchain and Digital Strategy.

    Read more
    View Profile
  • Shard Labs Logotype

    5.0 1 review
    $1,000+
    $25 - $49 / hr
    2 - 9
    Zagreb, Croatia

    Services provided

    30% Blockchain
    30% Custom Software Development
    30% Web Development +1
    10% Enterprise App Modernization

    Focus Areas

    30% Smart Contract Development
    60% Ethereum Development
    10% Initial Coin Offering Consulting

    Shard Labs offers comprehensive blockchain development services, specializing in migrating and onboarding users to new blockchain platforms, implementing backend features, and creating new frontend designs. The reviews consistently highlight Shard Labs' expertise in blockchain technology, their exceptional problem-solving skills, and their effective project management and communication, resulting in a highly satisfactory client experience.

    See all 1 projects

    Zagreb, Croatia

    Palinovečka 49
    Zagreb, Croatia 10110

    2 - 5

    +385996827754

    See All Locations (2)
    View Profile
  • Qualia Data Sciences Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Zagreb, Croatia

    Services provided

    20% Blockchain
    20% AI Development
    20% BI & Big Data Consulting & SI +2
    20% Back Office Outsourcing
    20% Market Research

    Focus Areas

    40% Smart Contract Development
    40% Ethereum Development
    20% Web3

    Qualia Data Sciences is a small Market Research company. They offer Market Research and BI & big data consulting & SI and were established in 2010.

    Read more
    View Profile
  • SecureBlock Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9
    Maglenča, Croatia

    Services provided

    40% Blockchain
    40% Cybersecurity
    20% Application Testing

    Focus Areas

    40% Smart Contract Development
    50% Ethereum Development
    10% Initial Coin Offering Consulting

    SecureBlock is a small Cybersecurity company established in 2021. Their services include Cybersecurity and Blockchain.

    Read more
    View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches
tracking image

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

  • In-depth client interviews and ratings
  • Comprehensive project details
  • Market presence
  • Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Ability to deliver
Focus
Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 SENLA
2 Async Labs
3 Thespian
4 Dream Factory

List of the Top 4 Zagreb Smart Contract Developers

  1. SENLA Logotype

    SENLA

    $10,000+
    $25 - $49 / hr
    250 - 999
    Zagreb, Croatia

    Ability to deliver

    37.4/40.0
    17.8/20 Reviews
    10/10 Clients & Experience
    9.6/10 Market Presence

    Service focus

    15% Blockchain
    80% Smart Contract Development
    85% Other
    View Profile Visit Website
  2. Async Labs Logotype

    Async Labs

    $5,000+
    $50 - $99 / hr
    10 - 49
    Zagreb, Croatia

    Ability to deliver

    29.5/40.0
    16.4/20 Reviews
    7.7/10 Clients & Experience
    5.5/10 Market Presence

    Service focus

    10% Blockchain
    50% Smart Contract Development
    90% Other
    View Profile Visit Website
  3. Thespian Logotype

    Thespian

    $10,000+
    $50 - $99 / hr
    10 - 49
    Zagreb, Croatia

    Ability to deliver

    25.9/40.0
    17.4/20 Reviews
    3.3/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    15% Blockchain
    30% Smart Contract Development
    85% Other
    View Profile Visit Website
  4. Dream Factory Logotype

    Dream Factory

    $25,000+
    $50 - $99 / hr
    2 - 9
    Zagreb, Croatia

    Ability to deliver

    22/40.0
    16.2/20 Reviews
    1.8/10 Clients & Experience
    4/10 Market Presence

    Service focus

    15% Blockchain
    20% Smart Contract Development
    85% Other
    View Profile Visit Website
  5. Meliorate Logotype

    Meliorate

    Undisclosed
    Undisclosed
    2 - 9
    Zagreb, Croatia

    Ability to deliver

    8.7/40.0
    0/20 Reviews
    4.7/10 Clients & Experience
    4/10 Market Presence

    Service focus

    20% Blockchain
    70% Smart Contract Development
    80% Other
    View Profile Visit Website
  6. Shard Labs Logotype

    Shard Labs

    $1,000+
    $25 - $49 / hr
    2 - 9
    Zagreb, Croatia

    Ability to deliver

    10.4/40.0
    0/20 Reviews
    5.1/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    30% Blockchain
    30% Smart Contract Development
    70% Other
    View Profile Visit Website
  7. Qualia Data Sciences Logotype

    Qualia Data Sciences

    Undisclosed
    Undisclosed
    2 - 9
    Zagreb, Croatia

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    20% Blockchain
    40% Smart Contract Development
    80% Other
    View Profile Visit Website
  8. SecureBlock Logotype

    SecureBlock

    $1,000+
    $100 - $149 / hr
    2 - 9
    Maglenča, Croatia

    Ability to deliver

    4.6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    40% Blockchain
    40% Smart Contract Development
    60% Other
    View Profile Visit Website

Similar Categories

Related Services

Web Developers in Zagreb Software Developers in Zagreb Mobile App Development in Zagreb eCommerce in Zagreb Artificial Intelligence in Zagreb Blockchain in Zagreb AR/VR in Zagreb IoT in Zagreb Ruby on Rails in Zagreb

Specialties

Decentralized Finance Ethereum Initial Coin Offering Consulting Metaverse Development Smart Contract Auditing Smart Contract Development Tokenization web3
View More

Get personalized agency matches based on your project goals.