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Top Blockchain Companies & Developers in Oslo

Ratings Updated: July 27, 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 Flexible

    Nextrope has received consistently positive feedback regarding their flexibility across multiple projects. Clients highlighted how the team adeptly adapted to evolving requirements, such as in the case of PropEdge Ventures, where they embraced changes with agility and commitment. Similarly, Proxy Partners noted their remarkable responsiveness to changing demands. Overall, the sentiment reflects a strong appreciation for Nextrope’s ability to accommodate client needs and provide timely solutions, enhancing project outcomes.
    • 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.

      Read Full Review
    • EIP-20 Ethereum Token for Web3 Solution Provider
      5.0 Mar 12, 2022

      It was a pleasure to work with a competent team. The cooperation went smooth and they followed through on their promises. Also, the Nextrope team was very flexible and prepared to go above and beyond to complete the project.

      Read Full Review
    • Blockchain Platform Dev for Real Estate Investment Platform
      5.0 Dec 5, 2025

      Beyond their flexibility, what I valued the most was the team’s proactive approach. Nextrope does not focus solely on the technology itself; they take the time to understand the broader business context and continuously advise on whether certain technical decisions will positively impact the overall product and protocol. Whenever new requirements emerged even if they went beyond the original scope the team responded quickly, responsibly, and with genuine commitment. Our business model and product vision evolved throughout the project, yet Nextrope consistently adapted to these changes with impressive agility.

      Read Full Review
    • Software Development for Interim CFO Company
      5.0 Jul 16, 2020

      It’s amazing how much we achieved with such reasonable budget and time! Nextrope team's flexibility and responsiveness to changing requirements on our side is remarkable.

      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
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    RedDuck Logotype

    RedDuck

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

    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
    5 of 5 Blockchain reviews are 5 stars
    $50,000 – $199,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Custom Software Dev for Crypto Development Company

    5.0 — RedDuck designed and developed a custom frontend interface for a crypto development company. The scope included conceptualizing and building an advanced algorithmic bot to interact with the Read more
    Read 5 Reviews

    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

    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 projects from:

    Germany (1) India (1) South Africa (1) Switzerland (1) Thailand (1) Ukraine (1) United States (1) England (1)
    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

    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

    Oslo, Norway

    2 Tordenskiolds gate
    Oslo, Norway 0160

    16 - 20

    +47 21 92 93 00

    See All Locations (11)

    Review Rating from Clients

    4.8/5.0

    Quality

    4.8

    Schedule

    4.8

    Cost

    4.5

    Willing to Refer

    5.0

    Clients in Oslo praise Altoros for their expertise in native iOS app development, successfully implementing complex features like electronic signing and security solutions. They highlight strong project management, clear communication, and reliable delivery over long-term collaborations.
    Read Local Reviews
    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
    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

    Average Project Cost Breakdown

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

    What Clients Have Said

    Clients consistently praise IdeaSoft.io for their competitive pricing and overall value for money. For instance, one client noted that their pricing fit within budget while delivering high-quality results, stating it was a 'great culture fit.' Another client highlighted a 75% cost reduction achieved through IdeaSoft's cost optimization efforts. Overall, the sentiment reflects satisfaction with the cost-effectiveness of services provided, emphasizing the company's ability to deliver quality solutions at reasonable prices.
    Read All 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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