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Top Blockchain Companies & Developers in Oslo

Ratings Updated: April 19, 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?

    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 Adaptable

    The overall sentiment regarding Nextrope's adaptability is highly positive. Clients noted their impressive agility in responding to evolving project requirements, with one CEO highlighting the team's commitment to understanding broader business contexts. They provided timely updates and implemented changes swiftly after alignment calls, demonstrating flexibility and a proactive approach throughout the project's lifecycle. This adaptability significantly contributed to the overall success of the engagement, aligning with the client's evolving business model and product vision.
    • Blockchain Platform Dev for Real Estate Investment Platform
      5.0 Dec 5, 2025

      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. Many updates were implemented ad hoc, often directly after a short alignment call.

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    Read All Reviews
    1 of 1 Blockchain reviews are 5 stars
    1 new review for Blockchain in past 6 months
    $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

    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 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

    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

    Average Project Cost Breakdown

    $50,000 to $199,999 (5) $10,000 to $49,000 (1)

    What Clients Have Said

    Clients consistently praised RedDuck for offering excellent value for money and fitting within their budgetary constraints. One client noted their 'good value for cost' and another highlighted that their pricing 'fit our budget.' Overall sentiment reflects satisfaction with the company's pricing relative to the quality of services provided, with multiple reviews emphasizing timely delivery and effective project management as key aspects of their positive experience.
    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) 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 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 Collaborative

    The reviews indicate a strong sentiment of collaboration between clients and Altoros. Clients highlighted the team's ability to integrate seamlessly with their existing teams, noting the friendly and professional manner in which Altoros engages in project discussions. One client remarked on their 'very close collaboration' that facilitates solving complex problems together, while another praised their 'openness' in the development process. Overall, clients express high satisfaction with Altoros' collaborative approach.
    • React & Java Dev for AgtTech Company
      5.0 Mar 13, 2024

      The team demonstrated professional and innovative work, in a very friendly and collaborative manner with the existing team. Fast learning, quick onboarding, and assimilation into existing teams were impressive.

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    • Web Dev for Toll Collection Company
      5.0 May 4, 2023

      The most impressive aspect is the collaboration with the company. Our collaboration has been very consistent, and no unexpected items have been encountered so far.

      Read Full Review
    • Development Outsourcing Services for Media Web Tool
      5.0 Dec 3, 2019

      We have been able to work as one team despite the distance between us. We don’t use a ticket system; we have a very close collaboration, which has been key. Altoros has an openness when it comes to development. They listen to us and are part of the conversations that we have. They participate and give us their opinions. We are very pleased with the collaboration.

      Read Full Review
    • Web & App Dev for Interactive Social Platform
      5.0 May 20, 2019

      They’re more than just a hired company; they collaborate to make the best product possible. We’ve had a great experience since day one, and I couldn’t imagine working with any other firm.

      Read Full Review
    Read All Reviews

    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)

    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 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

    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

    Client feedback regarding IdeaSoft.io indicates a positive sentiment towards the company's cost and value for money. Multiple reviewers highlighted that IdeaSoft's pricing was competitive and aligned well with their budgets. For instance, a COO noted 'pricing fit our budget' while another client appreciated the 'good value for cost.' Overall, clients expressed satisfaction with the quality of deliverables received relative to the investment made, reinforcing the perception of IdeaSoft as a cost-effective partner.
    Read All 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)
    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

    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
    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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