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Top Blockchain Companies & Developers in Helsinki

Ratings Updated: July 31, 2026
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8 Companies

Country: Finland
City: Helsinki

List of the Top Helsinki Blockchain Development Companies

  • Featured

    What are Featured Providers?

    Nextrope Logotype

    Nextrope

    5.0 18 reviews
    Premier Verified
    $25,000+
    $50 - $99 / hr
    10 - 49
    Serves Helsinki, Finland

    Services provided

    70% Blockchain
    30% Custom Software Development

    Nextrope is a Blockchain Development company specializing in Blockchain Solutions, Smart Contract Development, and Crypto Application Development. All reviews highlight their proactive approach, adaptability, and strong sense of ownership, with 100% positive feedback on their ability to align technological and business strategies effectively. Their expertise contributed to a 60% reduction in manual work and faster investment processes.

    See all 18 projects
    1 of 1 Blockchain reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain Platform Dev for Real Estate Investment Platform

    5.0 — Nextrope developed a blockchain-based real estate tokenization platform for a real estate investment platform. The team designed the system's core architecture and developed the front- and backend. Read more
    Read 1 Review

    Industry Experience

    Nextrope has garnered positive feedback across multiple industries, including Real Estate, Business Services, Financial Services, Education, and Information Technology. Their expertise in blockchain solutions, project management, and adaptability has been highlighted, particularly for developing platforms and consulting on tokenization processes. Clients praised their proactive communication, timely delivery, and ability to provide tailored solutions. Overall, sentiments are highly favorable, suggesting that they are well-suited for projects in technology-driven sectors, particularly those involving blockchain and digital platforms.

    Read All Reviews

    Select Industry to see insights

    Information technology Financial services IT Services Education Engineering Retail Media Business services Real estate Manufacturing

    Average Project Cost Breakdown

    $10,000 to $49,000 (10) Less than $10,000 (4) $50,000 to $199,999 (2)

    What Clients Have Said

    Nextrope is frequently noted for providing excellent value for money, with clients highlighting their cost-effectiveness relative to the quality of service delivered. For instance, one CEO mentioned selecting Nextrope for their 'good value for cost,' while another emphasized the 'high quality of work' achieved within a 'reasonable budget.' Overall, clients express strong satisfaction with Nextrope's pricing, describing their services as both affordable and of high quality, contributing to successful project outcomes.
    Read All Reviews

    View projects from:

    Poland (11) United Arab Emirates (2) Estonia (1) Norway (1) England (1)
    View Profile Visit Website
    RedDuck Logotype

    RedDuck

    5.0 14 reviews
    Verified
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Helsinki, Finland

    Services provided

    100% Blockchain

    RedDuck is a prominent Blockchain Development company specializing in Smart Contract Development, Decentralized Application (DApp) Development, and Blockchain Solutions. With a 100% positive feedback rate from reviewers, clients commend RedDuck for their technical precision, strategic product delivery, and exceptional project management. Approximately 80% of reviews highlight their responsive communication and ability to exceed expectations within budget constraints.

    See all 14 projects

    Reviews mention Well-organized projects

    Clients consistently praised RedDuck for their well-organized project management, highlighting timely deliverables and proactive communication. One client noted their impressive responsiveness, often addressing queries within an hour. Another remarked on the team's efficiency and ability to enhance product quality through organized efforts. Overall, sentiment towards RedDuck's project organization is overwhelmingly positive, with clients expressing satisfaction in meeting deadlines and maintaining high standards throughout the project lifecycle.
    • Smart Contract Development for Blockchain Company
      5.0 May 17, 2023

      How organized and efficient they are. These guys were the best! Smart and efficient they brought great ideas to make our product even better! I highly recommend and will certainly be working with them again.

      Read Full Review
    • Platform Development for Financial Services Company
      5.0 Jul 31, 2023

      RedDuck has been very productive in their time management and has always delivered on time. They have been very proactive in communication with daily stand-ups and managers holding the junior devs responsible for the delivery timeline promised.

      Read Full Review
    Read All Reviews
    1 of 1 reviews is 5 stars
    Unknown avg. project cost

    Reviewed 1 time in the past 6 months

    Recent client feedback on RedDuck highlights their effective delivery of an API interface, with one client noting they met all requirements and delivered on time. The COO of NYM Technologies praised RedDuck for their good value and direct communication style, indicating satisfaction with the project management process. Overall, the sentiment is highly positive, with no identified areas for improvement.
    Read 1 Recent Review

    Industry Experience

    RedDuck has demonstrated expertise across telecommunications, financial services, gaming, and other industries. In telecommunications, they efficiently developed an API interface, enhancing client satisfaction with on-time delivery. In financial services, their comprehensive development capabilities for DeFi projects garnered positive feedback for strong project management and effective communication. Clients from gaming appreciated their ability to deliver complex projects swiftly. Overall, RedDuck is well-regarded for its technical precision, strong project management, and adaptability, making them a suitable partner for tech-driven initiatives in these sectors.

    Read All Reviews

    Select Industry to see insights

    Other Industry Logistics & Supply Chain Gaming Financial services

    Average Project Cost Breakdown

    $50,000 to $199,999 (5) $10,000 to $49,000 (1)

    What Clients Have Said

    RedDuck is consistently recognized for providing good value for money across various projects. Clients noted that their pricing fit within budget constraints while delivering high-quality outcomes. For example, one client appreciated RedDuck's 'good value for cost' and timely delivery, while another highlighted their 'excellent project management' and responsiveness. Overall, feedback reflects a positive sentiment regarding the company's cost efficiency and commitment to meeting client expectations.
    Read All Reviews
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  • Altoros Logotype

    4.8 34 reviews
    $25,000+
    $50 - $99 / hr
    250 - 999
    Helsinki, Finland

    Services provided

    40% Blockchain
    25% Custom Software Development
    10% Enterprise App Modernization +4 services
    10% Web Development
    5% IT Staff Augmentation
    5% Microservices Architecture Services
    5% Mobile App Development

    Altoros is a software development company specializing in custom software solutions, including web and mobile development, UX design, and staff augmentation. The reviews are overwhelmingly positive, with 90% highlighting their professionalism and effective communication. Clients commend Altoros for their timely delivery, adaptability, and high-quality work, although there is a suggestion for improved transparency in cybersecurity compliance.

    See all 34 projects

    Industry Experience

    Altoros has garnered positive feedback across various industries, notably in Financial Services, Software Development, and Media. Clients commend their expertise in fintech solutions and mobile app development, highlighting timely communication, project management, and technical proficiency. In Financial Services, they excel in creating automated workflows and SaaS applications. In Software Development, their team complements existing resources effectively, while in Media, they contribute significantly to user-centric tools. Overall, Altoros is recommended for clients seeking reliable technology partners across these sectors.

    Read All Reviews

    Select Industry to see insights

    Financial services Agriculture Food & Beverages Engineering Healthcare Advertising & marketing Other Industry Information technology Consumer Products Research Software Media IT Services

    Average Project Cost Breakdown

    $200,000 to $999,999 (8) $50,000 to $199,999 (6) $10,000 to $49,000 (4) $1,000,000 to $9,999,999 (4) Less than $10,000 (1)

    What Clients Have Said

    Clients consistently express satisfaction with Altoros' pricing and overall value. Feedback highlights 'good value for cost' and 'impressive pricing' as significant factors for selecting Altoros. One client noted that Altoros delivered quality work under budget and ahead of schedule, while another emphasized their ability to provide high-quality engineers at reasonable rates. Overall, clients appreciate the balance of cost and quality, often remarking that Altoros offers exceptional service compared to competitors.
    Read All Reviews

    View projects from:

    United States (15) Norway (2) Switzerland (2) Australia (2) Germany (2) Finland (1) Israel (1) Poland (1) Singapore (1) South Africa (1) Sweden (1) Denmark (1) Canada (1) England (1)

    Review Rating from Clients

    5.0/5.0

    Quality

    4.5

    Schedule

    4.5

    Cost

    4.5

    Willing to Refer

    5.0

    Local clients praise Altoros for delivering tailored SaaS and mobile solutions on time, emphasizing their high technical skills and flexible approach. They value open communication and innovative development methods, resulting in successful project outcomes and timely launches.
    Read Local Reviews
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  • TX Tomorrow Explored Oy Logotype

    5.0 3 reviews
    Undisclosed
    $100 - $149 / hr
    10 - 49
    Helsinki, Finland

    Services provided

    50% Blockchain
    25% Blockchain Marketing
    25% UX/UI Design

    TX Tomorrow Explored Oy is a Blockchain Development company specializing in blockchain solutions, tokenomics, and smart contract development. Client feedback highlights their meticulous project management and quality of deliverables, with 100% of reviews praising their attention to detail and effective communication. Clients appreciate their structured discovery process, leading to successful outcomes in decentralized system development.

    See all 3 projects

    Reviews mention Open to feedback

    Clients have expressed a positive sentiment regarding TX Tomorrow Explored Oy's openness to feedback. One client noted their diligence in documenting conversations and their responsiveness to changes, highlighting a quick turnaround on iterations. The company's structured discovery process was praised for its effectiveness in understanding client needs, resulting in a superb final product. Overall, clients appreciate the collaborative approach and adaptability displayed throughout the project.
    • Blockchain Development for Blockchain Company
      5.0 Mar 31, 2023

      They kept diligent notes of our conversations, made changes according to feedback, and had a quick turn around on iterations.

      Read Full Review
    Read All Reviews

    Industry Experience

    TX Tomorrow Explored Oy has garnered positive feedback across several industries, including blockchain logistics, AI platforms, and software development. Clients commend their expertise in Web3 design, tokenomics, and project management, emphasizing their detail-oriented approach and strong collaboration skills. Overall sentiment is highly favorable, particularly in blockchain-related sectors, where their impact is noted for enhancing project clarity and quality. Potential clients in tech-focused industries, especially those involving decentralized solutions, would find them a fitting partner.

    Read All Reviews

    Select Industry to see insights

    IT Services Software

    Average Project Cost Breakdown

    What Clients Have Said

    Clients consistently praise TX Tomorrow Explored Oy for their excellent value for money and cost-effectiveness. One client highlighted the company's 'good value for cost,' while another noted the significant savings achieved through their expertise. Overall, the sentiment reflects satisfaction with the pricing relative to the quality of service provided, with clients emphasizing timely delivery and attention to detail as key factors enhancing the perceived value.
    Read All Reviews

    View projects from:

    United States (2) Switzerland (1)
    View Profile
  • Keytech OY Logotype

    5.0 1 review
    $10,000+
    $50 - $99 / hr
    10 - 49
    Helsinki, Finland

    Services provided

    10% Blockchain
    50% Mobile App Development
    20% IoT Development +2 services
    10% E-Commerce Development
    10% Web Development

    Keytech OY is a web and mobile app development company known for its effective project management and cost-efficient services. With a small team of 2-5 employees, 100% of reviewers highlight their experienced team and ability to integrate with existing software. However, 100% of reviewers also suggest improving communication regarding project updates.

    See all 1 projects

    Industry Experience

    Keytech OY has garnered positive feedback in the automotive industry, specifically for their web and mobile application development services. Clients highlight their expertise in enhancing operational efficiency and communication within car service companies. The overall sentiment reflects satisfaction with their project management and value for cost, though suggestions for improving communication on deliverables were noted. This indicates that potential clients in the automotive sector can expect a reliable partnership focused on technological improvements.

    Read All Reviews

    Select Industry to see insights

    Automotive

    Average Project Cost Breakdown

    $50,000 to $199,999 (1)

    What Clients Have Said

    Keytech OY is noted for providing good value for cost, as highlighted by a client who appreciated their pricing fitting within budget constraints. The client emphasized the company's effective project management and the positive outcomes, including time and cost savings. Overall, sentiment regarding pricing and value indicates satisfaction, though there is a suggestion for improved communication about project updates.
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  • Oivan Logotype

    4.5 13 reviews
    $10,000+
    $50 - $99 / hr
    50 - 249
    Helsingfors, Finland

    Services provided

    10% Blockchain
    25% Web Development
    15% Custom Software Development +5 services
    15% Cybersecurity
    15% Mobile App Development
    10% Application Management & Support
    5% Cloud Consulting & SI
    5% UX/UI Design

    Oivan, a versatile IT services company, specializes in IT infrastructure, operations, and software development. The majority of reviews highlight Oivan's exceptional expertise and flexibility, with 100% of clients praising their project management and communication skills. Their ability to customize solutions to meet specific business needs is frequently noted, making them a respected partner in technology-driven projects.

    See all 13 projects

    Reviews mention Results-oriented

    Clients have consistently praised Oivan for their results-oriented approach, specifically highlighting their ability to understand business needs and translate them into actionable IT requirements. One client noted, "I appreciated their ability to understand our business needs and formalize them to IT requirements," emphasizing the effective communication and planning throughout the project. Overall, the sentiment reflects a high level of satisfaction with Oivan's performance and project management capabilities.
    • Property Management System Architecture Design for Real Estate Firm
      5.0 May 16, 2018

      IWA performed really well over the project. They understood the business and helped us crystallize and codify our requirements. Furthermore, they were very good at putting all of this down on paper and defining a plan to develop the system. I appreciated their ability to understand our business needs and formalize them to IT requirements. They excel at communicating the system’s needs and the limitations and development challenges caused by them.

      Read Full Review
    Read All Reviews

    Industry Experience

    Oivan has demonstrated strong expertise across various industries, including Financial Services, Real Estate, Education, and Arts & Entertainment. Clients commend Oivan for their clear, practical recommendations, reliability, and ability to understand business needs. Overall sentiment is positive, especially in Financial Services and Real Estate, where Oivan's technical skills and project management have received high praise. Their adaptability and collaborative approach make them a suitable partner for startups and established businesses alike.

    Read All Reviews

    Select Industry to see insights

    Financial services IT Services Real estate Education Arts, entertainment & music Nonprofit Other Industry

    Average Project Cost Breakdown

    $10,000 to $49,000 (4) $50,000 to $199,999 (4) Less than $10,000 (2) $200,000 to $999,999 (1)

    What Clients Have Said

    Oivan's clients generally express satisfaction with the company's cost and value for money. Feedback highlights that their pricing is reasonable, with one client noting a project cost of around $6,000, which they deemed a very good deal. Another client mentioned being on budget and on schedule, emphasizing the fair pricing for the services provided. Overall, clients appreciate the clarity and practicality of Oivan's recommendations, indicating that they receive good value relative to their investment.
    Read All Reviews

    Review Rating from Clients

    4.4/5.0

    Quality

    4.5

    Schedule

    4.2

    Cost

    4.4

    Willing to Refer

    4.8

    Helsinki clients praise IWA for their expertise across diverse projects, including app development, digital services, and complex software solutions. They emphasize strong project management, clear communication, and the ability to understand and deliver on intricate requirements, resulting in positive user feedback and impactful outcomes.
    Read Local Reviews
    View Profile
  • Blockchain Business Security Solutions Finland Logotype

    Not yet reviewed

    $100,000+
    $300+ / hr
    2 - 9
    Helsinki, Finland

    Services provided

    100% Blockchain

    Blockchain company Blockchain Business Security Solutions Finland was founded in 2022. The team focuses on Blockchain and is based in Helsinki, Finland.

    Read more
    View Profile
  • Nordivo Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    10 - 49
    Helsinki, Finland

    Services provided

    100% Blockchain

    Nordivo is a small Helsinki, Finland-based Blockchain company. Their services include Blockchain.

    Read more
    View Profile
  • Seita Technologies Oy Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Helsinki, Finland

    Services provided

    40% Blockchain
    20% Custom Software Development
    10% E-Commerce Development +3 services
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development

    Seita Technologies Oy is a Helsinki, Finland-based Blockchain company. Launched in 2012, the team provides Blockchain and Custom Software Development.

    Read more
    View Profile
  • HeyDay Pro Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Helsinki, Finland

    Services provided

    25% Blockchain
    25% AR/VR Development
    20% BI & Big Data Consulting & SI +2 services
    15% AI Development
    15% IoT Development

    Established in 2000, HeyDay Pro is a small Helsinki, Finland-based AR/VR development company. Their team provides AR/VR development and Blockchain.

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

1 Altoros
2 TX Tomorrow Explored Oy
3 Keytech OY
4 Oivan

List of the Top 4 Helsinki Blockchain Development Companies

  1. Altoros Logotype

    Altoros

    $25,000+
    $50 - $99 / hr
    250 - 999
    Helsinki, Finland

    Ability to deliver

    35.7/40.0
    16.2/20 Reviews
    10/10 Clients & Experience
    9.5/10 Market Presence

    Service focus

    40% Blockchain
    60% Other
    View Profile Visit Website
  2. TX Tomorrow Explored Oy Logotype

    TX Tomorrow Explored Oy

    Undisclosed
    $100 - $149 / hr
    10 - 49
    Helsinki, Finland

    Ability to deliver

    31.4/40.0
    16.2/20 Reviews
    9.9/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    50% Blockchain
    50% Other
    View Profile Visit Website
  3. Keytech OY Logotype

    Keytech OY

    $10,000+
    $50 - $99 / hr
    10 - 49
    Helsinki, Finland

    Ability to deliver

    23.7/40.0
    16.2/20 Reviews
    2.2/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  4. Oivan Logotype

    Oivan

    $10,000+
    $50 - $99 / hr
    50 - 249
    Helsingfors, Finland

    Ability to deliver

    23.4/40.0
    14.6/20 Reviews
    3.6/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  5. Blockchain Business Security Solutions Finland Logotype

    Blockchain Business Security Solutions Finland

    $100,000+
    $300+ / hr
    2 - 9
    Helsinki, Finland

    Ability to deliver

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

    Service focus

    100% Blockchain
    View Profile Visit Website
  6. Nordivo Logotype

    Nordivo

    $10,000+
    $50 - $99 / hr
    10 - 49
    Helsinki, Finland

    Ability to deliver

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

    Service focus

    100% Blockchain
    View Profile Visit Website
  7. Seita Technologies Oy Logotype

    Seita Technologies Oy

    Undisclosed
    Undisclosed
    10 - 49
    Helsinki, Finland

    Ability to deliver

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

    Service focus

    40% Blockchain
    60% Other
    View Profile Visit Website
  8. HeyDay Pro Logotype

    HeyDay Pro

    $5,000+
    $100 - $149 / hr
    10 - 49
    Helsinki, Finland

    Ability to deliver

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

    Service focus

    25% Blockchain
    75% Other
    View Profile Visit Website

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