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Top Blockchain Companies & Developers in Oslo

Ratings Updated: August 17, 2026
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3 Companies

Country: Norway
City: Oslo

List of the Top Oslo 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 Oslo, Norway

    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 Efficient

    Nextrope has consistently received positive feedback regarding their efficiency in project execution. Clients noted their 'great efficiency and speed' in conducting audits and delivering services without delays. For instance, one client praised the team for their 'fantastic ability to recognize our needs,' which facilitated a smooth workflow. Another emphasized the 'attention to detail' coupled with rapid delivery of materials, highlighting Nextrope's commitment to timely and effective project management.
    • Cybersecurity Audit for Blockchain-Based Company
      5.0 Dec 8, 2021

      Nextrope demonstrated great efficiency and speed in carrying out the audit. There were no unnecessary delays.

      Read Full Review
    • Digital Marketing for Blockchain Conference
      4.5 Apr 1, 2020

      Attention to detail in delivering materials, with the simultaneous efficiency in doing so very quickly.

      Read Full Review
    • Research & Design for Blockchain Music Streaming Service
      5.0 Apr 1, 2020

      Nextrope works extremely efficiently and pragmatically. The Nextrope team understood our hosting needs perfectly and recognized the importance of the smart contracts.

      Read Full Review
    Read All Reviews
    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

    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

    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 Profile Visit Website
    RedDuck Logotype

    RedDuck

    5.0 15 reviews
    Verified
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Oslo, Norway

    Services provided

    90% Blockchain
    10% Web Development

    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 15 projects

    Reviews mention Transparent

    Clients have expressed high satisfaction with RedDuck's transparency throughout their projects. One CEO noted that RedDuck provided regular progress updates and was open about any necessary adjustments, fostering clear communication. The project management was characterized by responsiveness to feedback and adherence to timelines, which contributed to the overall success of the project. This level of transparency and professionalism has been highlighted as a key factor in establishing trust and ensuring a smooth collaboration.
    • Blockchain Development for FinTech Company
      5.0 Apr 23, 2025

      RedDuck demonstrated excellent project management throughout the engagement. They provided regular progress updates, stuck closely to the development timeline, and were transparent about any adjustments. Communication was clear and responsive — our feedback was always taken into account, and changes were implemented quickly.

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    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 significant expertise across various industries, notably Telecommunications, Financial Services, Gaming, and other tech-driven sectors. Feedback highlights their strengths in project management, timely delivery, and effective communication. Clients appreciate their ability to navigate complex development needs, particularly in blockchain and fintech environments. Overall, sentiment remains highly positive, suggesting RedDuck is particularly well-suited for projects in Financial Services and Blockchain-related industries, where their technical skills and strategic insight can drive impactful outcomes.

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    Select Industry to see insights

    Financial services Logistics & Supply Chain Gaming Other Industry
    $6,400 Allocation of an ethereum smart-contract developer $9,600 Allocation of a senior ethereum developer RWA/DeFi $12,800 Allocation of a tech-lead developer RWA/DeFi/Web3

    Software Development (Ethereum/EVM)

    Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.
    View Packages
    View Profile Visit Website
  • Altoros Logotype

    4.8 34 reviews
    $25,000+
    $50 - $99 / hr
    250 - 999
    Oslo, Norway

    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

    Reviews mention Flexible

    Clients consistently commend Altoros for their flexibility in adapting to project needs and communication styles. One client highlighted their willingness to accommodate changes, stating, 'they are very flexible in this regard.' Another noted that Altoros does not impose specific tools, instead aligning with client preferences, demonstrating their commitment to client satisfaction. Overall, feedback reflects a strong sentiment of appreciation for Altoros's adaptability and responsiveness to evolving project requirements.
    • Custom Dev for Software Agency
      5.0 Apr 28, 2021

      They’re excellent. They don’t force us to use any specific tools, as they’re happy to go with whatever we want. We go with whatever fits our client’s needs. Altoros is extremely flexible and performs well with whatever tools we give them.

      Read Full Review
    • Product Deployment for Digitalized Commodity Company
      5.0 Mar 25, 2021

      In general, they react very quickly. As a startup, we have often some changes, and they are very flexible in this regard.

      Read Full Review
    • Retirement Plan Tool Development for Financial Services Co
      5.0 Oct 10, 2019

      Altoros works quickly, and the team is flexible about scheduling. We don’t use a formal Gantt chart because my schedule is very busy, and it’s difficult for me to carve out dedicated time to work on this unique project. However, if I did require a formal Gantt chart with a schedule, I know Altoros would adhere to it because they’ve already asked me about it.

      Read Full Review
    • iOS Consulting & App Dev for IT Services Company
      5.0 Dec 30, 2020

      Very effective! The new resources are found quickly upon request. The management staff is very flexible in solving any issues that might arise. Our experience with Altoros is without a doubt the best one yet.

      Read Full Review
    Read All Reviews

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

    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)

    Oslo, Norway

    2 Tordenskiolds gate
    Oslo, Norway 0160

    16 - 20

    +47 21 92 93 00

    See All Locations (11)
    View Profile
  • IdeaSoft.io Logotype

    4.9 27 reviews
    $50,000+
    $50 - $99 / hr
    50 - 249
    Oslo, Norway

    Services provided

    75% Blockchain
    5% AI Development
    5% Custom Software Development +3 services
    5% Mobile App Development
    5% UX/UI Design
    5% Web Development

    IdeaSoft.io is a Blockchain Development company specializing in services such as Smart Contract Development, Decentralized Application (DApp) Development, and Crypto Application Development. With a 100% positive feedback rate, their clients highlight the team's unmatched expertise in blockchain technology, timely project delivery, and strong cultural fit alongside excellent project management and communication.

    See all 27 projects

    Reviews mention Helpful

    Overall sentiment regarding IdeaSoft.io's helpfulness is highly positive. Clients have noted their exceptional support during critical project phases, with one executive highlighting their assistance in managing a complex infrastructure transition and providing weekly updates. Additionally, a CEO praised their flexibility and advice on technical aspects, contributing to a 30% increase in sales. Clients appreciate the team's commitment and proactive communication, reinforcing the perception of IdeaSoft as a partner rather than just a vendor.
    • Marketing Website for Events Marketing Agency
      5.0 Mar 23, 2020

      I liked their flexibility a lot and also that we discussed all the points from the start. + they were quite helpful in giving advice on the technical and design parts.

      Read Full Review
    Read All Reviews
    4 of 5 Blockchain reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Frontend Design for NFT Marketplace

    5.0 — An NFT marketplace hired IdeaSoft.io to build Smart Contracts on the front end. Read more
    Read 5 Reviews
    $6,000 Idea Validation $15,000 MVP Discovery $20,000 Go-to-market Product Discovery

    Discovery Phase in Blockchain Development

    Our Discovery Phase offers a comprehensive initial stage, where we collaborate with our clients to precisely define project objectives, requirements, and scope. Through thorough research and strategic planning, we establish a robust development strategy before proceeding to the implementation of your solution.
    View Packages

    Oslo, Norway

    Nedre Vollgate 3 c/o, The Factory
    Oslo, Norway 0158

    2 - 5

    See All Locations (6)
    View Profile
  • BitSpace Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Oslo, Norway

    Services provided

    40% Blockchain
    40% IoT Development
    20% AI Development

    BitSpace, an IoT development company, is based in Oslo, Norway. Their services include IoT development and Blockchain.

    Read more
    View Profile

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1 Altoros
2 IdeaSoft.io

List of the Top 2 Oslo Blockchain Development Companies

  1. Altoros Logotype

    Altoros

    $25,000+
    $50 - $99 / hr
    250 - 999
    Oslo, Norway

    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. IdeaSoft.io Logotype

    IdeaSoft.io

    $50,000+
    $50 - $99 / hr
    50 - 249
    Oslo, Norway

    Ability to deliver

    32.2/40.0
    16.4/20 Reviews
    9.8/10 Clients & Experience
    6.1/10 Market Presence

    Service focus

    75% Blockchain
    25% Other
    View Profile Visit Website
  3. BitSpace Logotype

    BitSpace

    Undisclosed
    Undisclosed
    10 - 49
    Oslo, Norway

    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

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