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Top Blockchain Companies & Developers in Oslo

Ratings Updated: February 15, 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?

    Innowise Logotype

    Innowise

    4.9 72 reviews
    Premier Verified
    $10,000+
    $50 - $99 / hr
    1,000 - 9,999
    Serves Oslo, Norway

    Services provided

    10% Blockchain
    10% AI Development
    10% AR/VR Development +7 services
    10% Cloud Consulting & SI
    10% Custom Software Development
    10% E-Commerce Development
    10% IT Staff Augmentation
    10% Mobile App Development
    10% Robotics Process Automation
    10% Web Development

    Innowise is a Blockchain Development company noted for its expertise in Blockchain Technology, Smart Contract Development, and Decentralized System Development. Across their reviews, 100% of clients highlight their professionalism, responsiveness, and ability to meet deadlines. Additionally, 80% of reviewers commend their strategic consulting, further emphasizing their depth of expertise and commitment to delivering high-quality blockchain solutions.

    See all 72 projects

    Reviews mention Great team

    Overall, clients express a strong sentiment regarding Innowise's team, highlighting their professionalism and integration into client operations. Feedback emphasizes their technical expertise, with one client noting their 'can-do attitude' and effective communication. Another client remarked on the team's ability to quickly adapt and deliver solutions, stating, 'They feel like part of our team, not just a vendor.' The team's commitment and maturity were frequently recognized, contributing to positive ongoing collaborations.
    • IT Consulting & Software Dev for Insurance Company
      4.5 Feb 7, 2023

      We’ve enjoyed working with them. Innowise Group’s team is full of good people; they’re kind and professional. They’re part of our team, and the team environment we’ve created works quite nicely.

      Read Full Review
    • Custom Software Development for Gas Manufacturing Company
      5.0 Apr 28, 2022

      The kind of support we received from their team was remarkable. They treated us like their partners and not one from many ‘clients’. They ensured the project was handled carefully and things were delivered on time.

      Read Full Review
    Read All Reviews
    5 of 5 Blockchain reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain & Custom Software Dev for Art Management System

    5.0 — Innowise provided blockchain and custom software development services for an art management system. The team developed the MVP of an art certificate tokenization system, managing front- and backend Read more
    Read 5 Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (24) $50,000 to $199,999 (17) $200,000 to $999,999 (10) Less than $10,000 (1)

    What Clients Have Said

    Clients consistently praised Innowise Group for their competitive pricing and excellent value for money. Feedback highlighted that their services fit various budgets while delivering high-quality results, as noted by multiple clients who emphasized good cost-to-value ratios. For instance, a CEO mentioned that Innowise's pricing fit their budget and provided great value, while another client appreciated the fair pricing during their ongoing engagement. Overall, the sentiment towards Innowise's cost-effectiveness is overwhelmingly positive, suggesting a strong alignment between quality and affordability.
    Read All Reviews

    Berlin, Germany

    63 Kronenstraße
    Berlin, Germany 10117

    16 - 20

    +49 30 520 158 80

    See All Locations (11)
    View Profile Visit Website
    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

    Reviews mention Open to feedback

    The reviews consistently highlight RedDuck's openness to feedback and adaptability. Clients noted their quick responses to inquiries and willingness to implement changes, with one client stating, "When I gave RedDuck negative feedback, I never got excuses... I got adjusted behavior." Another emphasized their transparent communication and responsiveness to evolving requirements, stating, "Our feedback was always taken into account, and changes were implemented quickly." Overall, the sentiment is highly positive, reflecting a strong alignment with client needs.
    • Custom Software Development for Blockchain Company
      5.0 Mar 18, 2022

      When I gave RedDuck negative feedback, I never got excuses from them — I got adjusted behavior. They were able to take criticism from us and adjust their approach versus blaming the circumstance. RedDuck is on the right track; they should keep doing what they’re doing, and I’m sure they’ll be incredible in a few years.

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    • Cryptocurrency & Blockchain Dev for Asset Tokenization Co
      5.0 Apr 21, 2025

      Always quick response to questions, very open to changes and suggestions. Excellent project management.

      Read Full Review
    • 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. Overall, they showed a high level of professionalism and adaptability to our evolving requirements.

      Read Full Review
    Read All Reviews
    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.

    Read All Reviews

    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
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  • 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 Understands their clients' needs

    Clients express strong satisfaction with Altoros's ability to understand their specific needs and challenges. One CTO emphasized their effective collaboration and knowledge in Big Data, stating that Altoros often provides innovative solutions to complex problems. Another review highlighted Altoros's proactive communication and adaptability, affirming their understanding of technology stacks and project requirements. Overall, the sentiment reflects a high level of confidence in Altoros's capacity to align with client objectives.
    • Big Data Work for IT Corporation
      5.0 Jan 30, 2014

      We have achieved our goals from clients. They understand data and have come through many times. They have a lot of data knowledge, and their innovation is great. They always find new ideas and tell me things that I never knew.

      Read Full Review
    Read All Reviews

    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.

    Read All Reviews

    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

    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

    4.8/5.0

    Quality

    4.8

    Schedule

    4.8

    Cost

    4.5

    Willing to Refer

    5.0

    Reviewers in Oslo commend Altoros for their deep iOS consulting, maintaining and enhancing apps with security and functionality. The team is noted for meeting deadlines, providing valuable insights, and fostering effective collaboration, reflecting extensive experience and high-quality service.
    Read All 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 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

    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.
    View Packages

    Oslo, Norway

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

    2 - 5

    See All Locations (5)
    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
    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

    32.6/40.0
    16.8/20 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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