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Home Blockchain Sweden Stockholm

Top Blockchain Companies & Developers in Stockholm

Ratings Updated: September 23, 2026
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11 Companies

Country: Sweden
City: Stockholm

List of the Top Stockholm 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 Stockholm, Sweden

    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

    Reviews mention Well-organized projects

    Clients have expressed high satisfaction with Nextrope's project organization, noting their well-coordinated team and adherence to deadlines. One client highlighted the effective communication with the Project Manager, stating they felt consistently involved throughout the process. The integration of front-end and back-end development was described as seamless, with one client remarking that the final product exceeded expectations. Overall, the sentiment reflects a strong appreciation for Nextrope's structured approach to project management.
    • Business Dev Consultancy for Construction Services Startup
      5.0 May 27, 2022

      The Nextrope team was very quick in first organizing the introductory meeting, understanding our needs, coming up with a workshop proposal, and finally doing the analysis. Then, they were flexible in logistics of planning our workshop, and delivered high-quality materials from the consultancy.

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    • Tokenization Platform for IT Service Provider
      5.0 Mar 17, 2022

      The Nextrope team was very well coordinated. They were serious about deadlines and were very proactive when it came to reporting. From their communication to project management, everything was properly organized.

      Read Full Review
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    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

    More responsive than most other service providers

    Nextrope 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:

    Poland (11) United Arab Emirates (2) Estonia (1) Norway (1) England (1)
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    RedDuck Logotype

    RedDuck

    5.0 16 reviews
    Verified Clutch Guarantee
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Stockholm, Sweden

    Services provided

    90% Blockchain
    10% Web Development

    RedDuck is a Blockchain Development firm specializing in Smart Contract Development, Distributed Ledger Technology, and Decentralized Application Development. They consistently receive positive feedback for their technical proficiency, with approximately 95% of reviewers commending their project management and responsiveness. Clients particularly appreciate their strategic vision and ability to deliver comprehensive blockchain solutions that align with business objectives.

    See all 16 projects

    Reviews mention Exceptional performance

    RedDuck has received exceptional feedback for its outstanding performance in contract development and advisory services. A client noted that the team delivered an 'impeccable experience and deliverable product in an extremely timely manner.' They praised RedDuck for being organized, efficient, and for bringing innovative ideas to enhance the project. The overall sentiment reflects high satisfaction, with the client expressing a strong intention to collaborate with RedDuck again, underscoring their exceptional capabilities.
    • Smart Contract Development for Blockchain Company
      5.0 May 17, 2023

      Mark and his team delivered an impeccable experience and deliverable product in an extremely timely manner. 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.

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    3 of 3 reviews are 5 stars
    2 new reviews for Blockchain services
    $50,000 – $199,999 avg. project cost

    Reviewed 3 times in the past 6 months

    RedDuck has received positive feedback over the past six months, with clients highlighting their effective communication and timely project delivery. One client praised their ability to meet deadlines while being attentive to needs, and another noted RedDuck's proactive problem-solving approach. Additionally, a client emphasized the successful deployment of complex blockchain solutions, showcasing RedDuck's technical expertise. Overall, clients express satisfaction with RedDuck's performance and the quality of their deliverables, indicating a strong fit for collaborative projects.
    Read 3 Recent Reviews

    Industry Experience

    RedDuck has demonstrated expertise across various industries including Information Technology, Telecommunications, Financial Services, Gaming, and Manufacturing. Clients commend RedDuck for their strong project management, timely delivery, and adaptability in meeting client needs. Positive sentiment is particularly noted in Financial Services, where their proficiency in blockchain solutions and smart contract development has been highly praised. Their collaborative approach and commitment to quality make them a suitable partner for projects in tech-driven sectors.

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    Select Industry to see insights

    Manufacturing Logistics & Supply Chain Gaming Other Industry Financial services Information technology

    More responsive than most other service providers

    RedDuck 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 Profile Visit Website
  • ERRNA Logotype

    4.8 2 reviews
    $5,000+
    < $25 / hr
    1,000 - 9,999
    Stockholm, Sweden

    Services provided

    60% Blockchain
    10% Cybersecurity
    10% Marketing Strategy +2 services
    10% Mobile App Development
    10% Web Design

    ERRNA offers services including Blockchain Development, Smart Contract Development, and Decentralized Application (DApp) Development. The client feedback highlights ERRNA's ability to deliver secure and effective blockchain solutions on time and within budget. Clients appreciate their professionalism, project management, and the high quality of their developed applications.

    See all 2 projects

    Industry Experience

    ERRNA has received positive feedback primarily from the education industry, with clients highlighting their strengths in product development and project management. Their expertise in managing product roadmaps and backlog prioritization has been beneficial for educational platforms like MyTutor. Overall sentiment reflects strong satisfaction, particularly in communication and alignment with client values, making ERRNA a suitable choice for projects focused on educational technology and development.

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    Select Industry to see insights

    Education

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have expressed satisfaction with ERRNA's pricing structure, highlighting it as a good fit for their budget and noting the overall value for money. One client emphasized that the company aligned with their values and provided effective project management. Additionally, the quality of team communication and transparency was praised, reinforcing the perception of ERRNA as a cost-effective choice for product development needs.
    Read All Reviews

    Stockholm, Sweden

    61 Sandhamnsgatan
    Stockholm, Sweden 115 28

    2 - 5

    +1-435-800-0086

    See All Locations (33)
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  • OpenGeeksLab Logotype

    4.9 17 reviews
    $10,000+
    $25 - $49 / hr
    50 - 249
    Stockholm, Sweden

    Services provided

    30% Blockchain
    30% Custom Software Development
    20% Mobile App Development +1 service
    20% Web Development

    OpenGeeksLab is a blockchain development company specializing in integrating blockchain technology to enhance security, transparency, and efficiency. The company has received 100% positive feedback for its expertise in smart contract development and project management. Clients commend OpenGeeksLab for its professionalism and ability to tailor blockchain solutions to specific business needs, ensuring successful project delivery.

    See all 17 projects

    Industry Experience

    OpenGeeksLab has demonstrated expertise across various industries, including retail apparel and fashion, cryptocurrency, education, and business services. Clients consistently highlight the company's strengths in web and mobile application development, effective project management, and strong communication. Positive feedback emphasizes their ability to enhance user experience, increase sales, and deliver projects on time. Overall, OpenGeeksLab is well-suited for businesses seeking robust digital solutions in dynamic sectors such as e-commerce, technology, and education.

    Read All Reviews

    Select Industry to see insights

    Beauty & Cosmetics Logistics & Supply Chain Advertising & marketing Other Industry Education Software Business services

    Average Project Cost Breakdown

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

    What Clients Have Said

    OpenGeeksLab is recognized for delivering strong value for money, with several clients highlighting their cost-effectiveness and quality of service. For instance, one client noted that their pricing fit the budget and provided great value, while another emphasized their flexibility and cost-efficiency compared to competitors. Overall, feedback reflects a positive sentiment regarding the company's pricing structure, with many clients expressing satisfaction with the outcomes relative to their investment.
    Read All Reviews

    View projects from:

    Canada (3) United States (2) England (2) France (1) United Arab Emirates (1) Ukraine (1)
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  • Slashdev Logotype

    5.0 19 reviews
    $5,000+
    $50 - $99 / hr
    10 - 49
    Stockholm, Sweden

    Services provided

    10% Blockchain
    20% Custom Software Development
    20% Mobile App Development +4 services
    20% Web Development
    10% AI Development
    10% E-Commerce Development
    10% IT Staff Augmentation

    Slashdev is a versatile software development company specializing in app development, web services, and recruitment of tech specialists. The company is praised for its strong communication, timely delivery, and high-quality outputs, with around 90% of reviews reflecting positive experiences. Clients frequently commend Slashdev's flexibility, technical insight, and commitment to exceeding expectations, with 70% noting their effective project management and problem-solving capabilities.

    See all 19 projects
    1 of 1 reviews is 5 stars
    $50,000 – $199,999 avg. project cost

    Reviewed 1 time in the past 6 months

    Recent feedback for Slashdev highlights exceptional communication and project management, with clients noting their responsiveness and commitment to problem-solving. One client praised the company's ability to streamline engineering processes and integrate new tools effectively, resulting in a significant improvement compared to previous experiences. Overall, the sentiment is overwhelmingly positive, with clients expressing high satisfaction with the quality of work and collaboration, indicating that Slashdev is a reliable partner for development projects.
    Read 1 Recent Review

    Industry Experience

    Slashdev has demonstrated expertise across various industries, including real estate, education, information technology, and utilities. Clients have praised their strong project management, technical skills, and ability to deliver innovative solutions that enhance operational efficiency. Overall sentiment is highly positive, particularly in the real estate and education sectors, where Slashdev's contributions led to significant improvements in user experience and codebase stability. This makes Slashdev a strong candidate for projects in these fields, as well as others requiring custom software development.

    Read All Reviews

    Select Industry to see insights

    Utilities Business services Other Industry Retail IT Services Software Information technology Education Healthcare Real estate

    Average Project Cost Breakdown

    $10,000 to $49,000 (4) Less than $10,000 (3) $50,000 to $199,999 (2)

    What Clients Have Said

    Slashdev is frequently praised for its cost-effectiveness and value for money. Clients noted that their pricing was competitive and fit within budget constraints while still delivering high-quality results. One client mentioned that Slashdev offered 'great value for cost,' and another highlighted the company's ability to deliver quality work at a 'fraction of the price' compared to competitors. Overall, the sentiment reflects a strong appreciation for the balance of quality and affordability provided by Slashdev.
    Read All Reviews

    View projects from:

    United States (4) England (4) Sweden (2) Armenia (1) Brazil (1) Canada (1) Greece (1)
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  • Blocksism Logotype

    4.0 1 review
    $5,000+
    $25 - $49 / hr
    Freelancer
    Stockholm, Sweden

    Services provided

    80% Blockchain
    10% Custom Software Development
    10% Web Development

    Blocksism is a blockchain development company specializing in creating smart contracts and utilizing Hyperledger technology. Reviews highlight their agility, responsiveness, and effective communication, with 100% of feedback emphasizing a successful prototype completion. Clients appreciate their competitive pricing, although suggestions include exploring frameworks beyond Ethereum. Overall, Blocksism delivers efficiently on niche blockchain solutions with a clear emphasis on client collaboration.

    See all 1 projects

    Industry Experience

    Blocksism has demonstrated expertise in the blockchain sector, particularly within the staffing and recruiting industry. Their strengths include effective communication, responsiveness, and agile project management, as noted in client feedback. They successfully developed a blockchain prototype using Hyperledger technology, validating all project requirements. Overall sentiment is positive, with clients appreciating their approachability and niche focus, although they could benefit from diversifying their technical frameworks beyond Ethereum.

    Read All Reviews

    Select Industry to see insights

    Other Industry

    Average Project Cost Breakdown

    What Clients Have Said

    Clients have expressed satisfaction with Blocksism's pricing, noting it as 'good' and reflecting strong value for money. One client mentioned spending $2,000 on a blockchain prototype, which met all validation goals. They appreciated Blocksism's responsiveness and adaptability to changing requirements, enhancing their overall experience. However, potential clients are advised to clarify costs and project scope upfront, and to consider starting with smaller projects to gauge the company’s capabilities.
    Read All Reviews
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  • More Digital Studios Sweden AB Logotype

    Not yet reviewed

    $5,000+
    $100 - $149 / hr
    10 - 49
    Stockholm, Sweden

    Services provided

    15% Blockchain
    30% Digital Strategy
    25% Advertising +3 services
    10% AR/VR Development
    10% UX/UI Design
    10% Web Development

    Headquartered in Piteå, Sweden and Stockholm, Sweden, More Digital Studios Sweden AB is a Digital Strategy company. Their services include Digital Strategy and Advertising.

    Read more

    Stockholm, Sweden

    7 Nybrogatan
    Stockholm, Sweden 114 34

    6 - 9

    +46703983649

    See All Locations (2)
    View Profile
  • Erlang Solutions Logotype

    Not yet reviewed

    $10,000+
    Undisclosed
    50 - 249
    Stockholm, Sweden

    Services provided

    10% Blockchain
    40% Custom Software Development
    20% IT Strategy Consulting +4 services
    10% IoT Development
    10% Other Application Development
    5% Computer Engineering
    5% Mobile App Development

    Erlang Solutions is a software development company. The London, England-based team specializes in Custom Software Development and IT strategy consulting.

    Read more

    Stockholm, Sweden

    Blekholmstorget 30 F
    Stockholm, Sweden 111 64

    21 - 30

    +44 (0) 20 7456 1020

    See All Locations (5)
    View Profile
  • skilledpeople. Logotype

    Not yet reviewed

    $10,000+
    $100 - $149 / hr
    2 - 9
    Stockholm, Sweden

    Services provided

    40% Blockchain
    40% Business Consulting
    20% Digital Strategy

    Skilledpeople. Is a small Blockchain company located in Stockholm, Sweden. Their services include Blockchain and Business Consulting.

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  • Clever Compliance Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Stockholm, Sweden

    Services provided

    40% Blockchain
    60% Custom Software Development

    Clever Compliance is a software development firm. Their small team is based in Stockholm, Sweden and Sollentuna, Sweden. Their services include Custom Software Development and Blockchain.

    Read more
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  • Sierratech Logotype

    5.0 1 review
    $5,000+
    $50 - $99 / hr
    50 - 249
    Stockholm, Sweden

    Services provided

    20% Blockchain
    30% Web Development
    20% AI Development +3 services
    10% AR/VR Development
    10% Custom Software Development
    10% Low/No Code Development

    Sierratech offers services in Blockchain Development, focusing on secure platform development, user interface creation, and cryptocurrency integration. Reviews highlight Sierratech's cutting-edge expertise in blockchain technology, exemplary project management, and robust security measures. Clients commend their proactive communication and tailored solutions, ensuring projects are delivered on time with high standards of quality and compliance.

    See all 1 projects
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  • Inc Dev Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    10 - 49
    Stockholm, Sweden

    Services provided

    17% Blockchain
    17% Custom Software Development
    17% UX/UI Design +3 services
    17% Web Development
    16% DevOps Managed Services
    16% Mobile App Development

    Inc Dev is a Stockholm, Sweden-based UX company. They focus on UX/UI Design and Custom Software Development.

    Read more
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  • Dwellir Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Uppsala, Sweden

    Services provided

    100% Blockchain

    Dwellir is a Blockchain company. The team is located in Uppsala, Sweden, and their services include Blockchain.

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

1 ERRNA
2 OpenGeeksLab
3 Slashdev
4 Blocksism

List of the Top 4 Stockholm Blockchain Development Companies

  1. ERRNA Logotype

    ERRNA

    $5,000+
    < $25 / hr
    1,000 - 9,999
    Stockholm, Sweden

    Ability to deliver

    32.9/40.0
    16.2/20 Reviews
    9.7/10 Clients & Experience
    7/10 Market Presence

    Service focus

    60% Blockchain
    40% Other
    View Profile Visit Website
  2. OpenGeeksLab Logotype

    OpenGeeksLab

    $10,000+
    $25 - $49 / hr
    50 - 249
    Stockholm, Sweden

    Ability to deliver

    33.4/40.0
    15.6/20 Reviews
    10/10 Clients & Experience
    7.8/10 Market Presence

    Service focus

    30% Blockchain
    70% Other
    View Profile Visit Website
  3. Slashdev Logotype

    Slashdev

    $5,000+
    $50 - $99 / hr
    10 - 49
    Stockholm, Sweden

    Ability to deliver

    35.1/40.0
    16.6/20 Reviews
    10/10 Clients & Experience
    8.5/10 Market Presence

    Service focus

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

    Blocksism

    $5,000+
    $25 - $49 / hr
    Freelancer
    Stockholm, Sweden

    Ability to deliver

    19.4/40.0
    13/20 Reviews
    1.8/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    80% Blockchain
    20% Other
    View Profile Visit Website
  5. More Digital Studios Sweden AB Logotype

    More Digital Studios Sweden AB

    $5,000+
    $100 - $149 / hr
    10 - 49
    Stockholm, Sweden

    Ability to deliver

    14.3/40.0
    0/20 Reviews
    9/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    15% Blockchain
    85% Other
    View Profile Visit Website
  6. Erlang Solutions Logotype

    Erlang Solutions

    $10,000+
    Undisclosed
    50 - 249
    Stockholm, Sweden

    Ability to deliver

    12.2/40.0
    0/20 Reviews
    4.8/10 Clients & Experience
    7.4/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  7. skilledpeople. Logotype

    skilledpeople.

    $10,000+
    $100 - $149 / hr
    2 - 9
    Stockholm, Sweden

    Ability to deliver

    8.4/40.0
    0/20 Reviews
    3.8/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    40% Blockchain
    60% Other
    View Profile Visit Website
  8. Clever Compliance Logotype

    Clever Compliance

    Undisclosed
    Undisclosed
    2 - 9
    Stockholm, Sweden

    Ability to deliver

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

    Service focus

    40% Blockchain
    60% Other
    View Profile Visit Website
  9. Sierratech Logotype

    Sierratech

    $5,000+
    $50 - $99 / hr
    50 - 249
    Stockholm, Sweden

    Ability to deliver

    4.9/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    20% Blockchain
    80% Other
    View Profile Visit Website
  10. Inc Dev Logotype

    Inc Dev

    $1,000+
    $25 - $49 / hr
    10 - 49
    Stockholm, Sweden

    Ability to deliver

    6.1/40.0
    0/20 Reviews
    2.1/10 Clients & Experience
    4/10 Market Presence

    Service focus

    17% Blockchain
    83% Other
    View Profile Visit Website
  11. Dwellir Logotype

    Dwellir

    Undisclosed
    Undisclosed
    10 - 49
    Uppsala, Sweden

    Ability to deliver

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

    Service focus

    100% Blockchain
    View Profile Visit Website

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