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Top Blockchain Companies & Developers in Oslo

Ratings Updated: March 7, 2026
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2 Leaders 1 Contenders

3 Companies

Country: Norway
City: Oslo

List of the Top Oslo Blockchain Development Companies

  • Featured

    What are Featured Providers?

    RedDuck Logotype

    RedDuck

    5.0 13 reviews
    Verified
    $10,000+
    $50 - $99 / hr
    10 - 49
    Serves Oslo, Norway

    Services provided

    100% Blockchain

    RedDuck is a blockchain development company specializing in delivering comprehensive blockchain solutions, including smart contract development, distributed ledger technology, and decentralized application (DApp) development. Clients consistently praise their technical precision, proactive communication, and ability to deliver projects on time, with a 100% satisfaction rate highlighted across multiple reviews. Their expertise in blockchain technology and strategic product development is noteworthy.

    See all 13 projects
    5 of 5 Blockchain reviews are 5 stars
    2 new reviews for Blockchain in past 6 months
    $50,000 – $199,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain Development for FinTech Company

    5.0 — RedDuck developed a DeFi platform for a financial technology company. The team built the client's smart contracts, backend infrastructure, frontend app, user dashboard, landing website, and a Read more
    Read 5 Reviews

    Industry Experience

    RedDuck demonstrates significant expertise in the Financial Services, Gaming, and Logistics industries, with strong feedback highlighting their proficiency in blockchain development, smart contracts, and project management. Clients praised their ability to deliver secure, efficient solutions tailored to complex requirements, particularly in DeFi and tokenization projects. Overall sentiment is highly positive, particularly within Financial Services, where they are recognized for their innovative approaches and strategic insights, making them a suitable partner for companies in these sectors.

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    Select Industry to see insights

    Financial services Other Industry Logistics & Supply Chain Gaming

    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
  • 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 versatile software development company offering a range of services, including custom software development, web development, and UX design. Client reviews highlight their high-quality work, effective communication, and ability to integrate seamlessly with in-house teams. Approximately 80% of reviewers commend their professionalism and timely delivery, while some suggest room for improvement in language proficiency.

    See all 34 projects

    Reviews mention Easy to reach

    Clients have consistently praised Altoros for their accessibility and responsiveness throughout the project. One CEO highlighted that the team is ‘available to meet whenever needed’ and exceeds expectations in project management. They noted the team’s ability to track details effectively and provide follow-ups, which enhances communication. Overall, the sentiment regarding Altoros's ease of reach is highly positive, with clients appreciating the team's flexibility and proactive approach in managing projects.
    • Retirement Plan Tool Development for Financial Services Co
      5.0 Oct 10, 2019

      From a project management standpoint, they’ve exceeded my expectations. They’re available to meet whenever I need to. The team also keeps track of details; all of our calls end with them determining who is going to do what and sending follow-ups and to-dos. Altoros works quickly, and the team is flexible about scheduling.

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    Industry Experience

    Altoros has demonstrated expertise across diverse industries, including Financial Services, Agriculture, Food & Beverages, Software, and Healthcare. Client feedback highlights their strengths in staff augmentation, project management, and technical capabilities, with a strong emphasis on timely delivery and effective communication. Overall sentiment is positive, indicating their ability to scale solutions and enhance project outcomes, making them a suitable partner for organizations seeking robust development support.

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    Select Industry to see insights

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

    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 highlight Altoros' value for money, noting their competitive pricing relative to the quality of work delivered. For instance, one client emphasized Altoros as a 'great culture fit' and 'good value for cost,' while another praised their pricing as fitting within budget. Overall, feedback indicates satisfaction with the cost-effectiveness of their services, with many clients expressing that Altoros exceeds expectations while maintaining reasonable rates.
    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)
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  • 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 is a Blockchain Development company specializing in smart contract development, decentralized application development, and cryptocurrency solutions. They have received overwhelmingly positive feedback, with 100% of reviewers highlighting their expertise, timely delivery, and cultural fit. Clients commend IdeaSoft for their deep knowledge in the blockchain space and their ability to act as true partners in project development.

    See all 27 projects
    4 of 5 Blockchain reviews are 5 stars
    2 new reviews for Blockchain in past 6 months
    $50,000 – $199,999 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Proof of Concept Development for Financial Services Company

    5.0 — IdeaSoft developed a proof of concept for a CBDC for a financial services company. The team was responsible for building a wallet within a new banking app and handling the banking backend. Read more
    Read 5 Reviews

    Industry Experience

    IdeaSoft.io has demonstrated significant expertise across various industries, particularly in Financial Services, Engineering, Nonprofit, and IT Services. Clients have praised their strong project management, technical proficiency, and ability to deliver on innovative projects. In Financial Services, they excelled in blockchain and digital wallet solutions. Their engineering capabilities were noted in smart contract development, while their nonprofit collaborations showcased effective product design. Overall, feedback reflects high satisfaction, highlighting IdeaSoft's commitment to quality and strong client relationships across these sectors.

    Read All Reviews

    Select Industry to see insights

    Financial services Engineering Nonprofit Arts, entertainment & music Consulting Real estate Telecommunications Other Industry IT Services Business services Software Transportation Advertising & marketing Information technology

    View projects from:

    Ukraine (7) United States (4) Estonia (2) Germany (1) Cyprus (1) France (1) Bahamas (1) Israel (1) Panama (1) Saudi Arabia (1) Switzerland (1) Colombia (1) Canada (1)
    $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.
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  • 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
    Pleasanton, CA

    Ability to deliver

    36.7/40.0
    17.2/20 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
    Tallinn, Estonia

    Ability to deliver

    32.4/40.0
    16.6/20 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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