Top Blockchain Companies & Developers in Sweden
15 Companies
List of the Top Sweden Blockchain Development Companies
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$10,000+$50 - $99 / hr10 - 49Serves SwedenServices provided
100% BlockchainSee all 13 projectsRedDuck 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.
Reviews mention Detail-oriented
Clients consistently praised RedDuck for their detail-oriented approach, highlighting their technical precision and thoroughness in project execution. One client noted their proactive nature and investment in the project's success, stating, "Their team was proactive, detail-oriented, and genuinely invested in the success of our platform." Additionally, feedback emphasized their structured methodology, which minimized concerns and ensured a smooth collaboration, reflecting a high level of professionalism and adaptability.-
Smart Contract Development for Metaverse
5.0 May 26, 2023The RedDuck team responses extremely in-time. We usually set up in-day meetings so we could be on schedule and in context. Their ability to take a deep look at a subject is impressive.
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Blockchain Development for FinTech Company
5.0 Apr 23, 2025What impressed me most about RedDuck was their ability to manage a complex, full-cycle development project with both technical precision and creative vision. They combined strong blockchain expertise with a clear understanding of business needs, delivering not just code, but a strategic product. Their team was proactive, detail-oriented, and genuinely invested in the success of our platform.
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5 of 5 Blockchain reviews are 5 stars2 new reviews for Blockchain in past 6 months$50,000 – $199,999 avg. project costRead 5 ReviewsBlockchain 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 moreWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat 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.Was this helpful?
More responsive than most other service providers
Get in TouchRedDuck is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
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Slashdev
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$5,000+$50 - $99 / hr10 - 49Stockholm, SwedenServices provided
10% Blockchain20% Custom Software Development20% Mobile App Development +4 services20% Web Development10% AI Development10% E-Commerce Development10% IT Staff AugmentationSee all 18 projectsSlashdev is a versatile software development and recruitment company specializing in web and mobile application development, as well as providing skilled developers for clients’ specific project needs. Overall, the feedback is highly positive, with approximately 90% of reviews highlighting their efficiency, strong project management, and technical expertise. Clients commend their quick recruitment process and flexibility, although some suggest improvements in deliverables clarity and payment systems.
2 of 2 reviews are 5 stars$10,000 – $49,000 avg. project costRead 2 Recent ReviewsReviewed 2 times in the past 6 months
In the past six months, client feedback for Slashdev has been overwhelmingly positive. Reliable Storage noted a 50% reduction in onboarding time and a 15% increase in Google reviews, praising Slashdev's strong project management and flexibility. College Prep System highlighted the successful refactoring of 90% of their codebase, emphasizing the team's ownership and efficient communication. While some clients suggested clearer deliverables and early infrastructure planning, overall sentiment reflects satisfaction and a strong recommendation for future collaborations.Was this helpful?
Industry Experience
Slashdev has demonstrated expertise across various industries, including Education, Information Technology, Software, Healthcare, Business Services, Real Estate, and Retail. Clients consistently commend their ability to refactor complex codebases, develop mobile applications, and recruit specialized talent efficiently. The feedback is overwhelmingly positive, highlighting strengths in project management, communication, and adaptability. Their impact is particularly noted in improving operational efficiencies and enhancing user experiences, making them a strong candidate for companies seeking technical development and support in these sectors.
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Healthcare IT Services Business services Other Industry Retail Software Information technology Education Real estateWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlight Slashdev's competitive pricing and excellent value for money. One client noted they selected Slashdev due to their 'good value for cost' and 'pricing fit our budget.' Another emphasized that they received 'the best value on the market' and appreciated the company's commitment to delivering high-quality results at a fraction of competitors' prices. Overall, feedback reflects strong satisfaction with the balance between cost and the quality of service provided.Was this helpful?
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$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
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30% Blockchain30% Custom Software Development20% Mobile App Development +1 service20% Web DevelopmentSee all 17 projectsOpenGeeksLab is a blockchain development company specializing in integrating blockchain technology to enhance security, transparency, and efficiency. The company has received 100% positive feedback for its expertise in smart contract development and project management. Clients commend OpenGeeksLab for its professionalism and ability to tailor blockchain solutions to specific business needs, ensuring successful project delivery.
Reviews mention Great project management
Clients have consistently praised OpenGeeksLab for their exemplary project management skills. One client highlighted their ability to deliver items on time and effectively address specific needs, ensuring the project met expectations. Another noted the developers' self-motivation and knowledge in planning timelines, which instilled confidence. Overall, the sentiment reflects strong satisfaction with OpenGeeksLab's proactive communication and commitment to delivering high-quality results.-
Web Revamp for Apparel & Accessories Shop
5.0 May 20, 2023OpenGeekslab exhibited excellent project management throughout the engagement. They consistently delivered items on time, adhering to the agreed-upon milestones and deadlines. Whenever I had any specific needs or concerns, their team promptly addressed them, providing effective solutions and keeping me informed about the progress. Their strong communication and proactive approach ensured that the project stayed on track and met our expectations.
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Web & App Dev for Medical Education Advisory Services Company
4.0 Feb 12, 2018They are meticulous. I was impressed by the fact that after our meetings, the project manager sends me a transcript of the conversation just to make sure he understood our point.
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Industry Experience
OpenGeeksLab has demonstrated expertise across multiple industries, including Beauty & Cosmetics, Advertising & Marketing, Software, Logistics & Supply Chain, Education, and Business Services. Clients consistently commend their professionalism, timely delivery, and ability to create tailored web solutions that enhance user engagement. Positive feedback highlights their strengths in project management and communication, particularly in developing user-friendly platforms and e-commerce systems. Overall, they are well-suited for projects in retail, software development, and educational platforms.
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Beauty & Cosmetics Advertising & marketing Software Logistics & Supply Chain Other Industry Business services EducationWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlight OpenGeeksLab's competitive pricing and excellent value for money. One client noted that their pricing 'fit our budget' while another emphasized their 'good value for cost.' Overall sentiment reflects satisfaction with the affordability of services, suggesting that clients perceive a strong return on investment. Despite some minor suggestions for improvement, the majority of feedback underscores the company's ability to deliver high-quality results within budget constraints.Was this helpful?
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$5,000+$25 - $49 / hrFreelancerStockholm, Sweden
Services provided
80% Blockchain10% Custom Software Development10% Web DevelopmentSee all 1 projectsBlocksism is a blockchain development company specializing in creating smart contracts and blockchain prototypes, particularly within Hyperledger and Ethereum environments. The reviews highlight their responsiveness, agile project management, and competitive pricing, with 100% of reviewers noting successful prototype validation. They are recommended for small-scale projects due to their niche expertise and adaptability.
Industry Experience
Blocksism has demonstrated expertise in the blockchain sector, particularly within the staffing and recruiting industry. Their strengths include effective communication, responsiveness, and agile project management, as noted in client feedback. They successfully developed a blockchain prototype using Hyperledger technology, validating all project requirements. Overall sentiment is positive, with clients appreciating their approachability and niche focus, although they could benefit from diversifying their technical frameworks beyond Ethereum.
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Other IndustryWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have expressed satisfaction with Blocksism's pricing, noting it as 'good' and reflecting strong value for money. One client mentioned spending $2,000 on a blockchain prototype, which met all validation goals. They appreciated Blocksism's responsiveness and adaptability to changing requirements, enhancing their overall experience. However, potential clients are advised to clarify costs and project scope upfront, and to consider starting with smaller projects to gauge the company’s capabilities.Was this helpful?
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$5,000+$100 - $149 / hr10 - 49Piteå, Sweden
Services provided
15% Blockchain30% Digital Strategy25% Advertising +3 services10% AR/VR Development10% UX/UI Design10% Web DevelopmentHeadquartered in Piteå, Sweden and Stockholm, Sweden, More Digital Studios Sweden AB is a Digital Strategy company. Their services include Digital Strategy and Advertising.
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$10,000+$100 - $149 / hr2 - 9Stockholm, Sweden
Services provided
40% Blockchain40% Business Consulting20% Digital StrategySkilledpeople. Is a small Blockchain company located in Stockholm, Sweden. Their services include Blockchain and Business Consulting.
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UndisclosedUndisclosed2 - 9Stockholm, Sweden
Services provided
40% Blockchain60% Custom Software DevelopmentClever Compliance is a software development firm. Their small team is based in Stockholm, Sweden and Sollentuna, Sweden. Their services include Custom Software Development and Blockchain.
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UndisclosedUndisclosed10 - 49Uppsala, Sweden
Services provided
100% BlockchainDwellir is a Blockchain company. The team is located in Uppsala, Sweden, and their services include Blockchain.
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$5,000+$50 - $99 / hr50 - 249Stockholm, Sweden
Services provided
20% Blockchain30% Web Development20% AI Development +3 services10% AR/VR Development10% Custom Software Development10% Low/No Code DevelopmentSee all 1 projectsSierratech offers services in Blockchain Development, focusing on secure platform development, user interface creation, and cryptocurrency integration. Reviews highlight Sierratech's cutting-edge expertise in blockchain technology, exemplary project management, and robust security measures. Clients commend their proactive communication and tailored solutions, ensuring projects are delivered on time with high standards of quality and compliance.
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$1,000+$25 - $49 / hr10 - 49Stockholm, Sweden
Services provided
17% Blockchain17% Custom Software Development17% UX/UI Design +3 services17% Web Development16% DevOps Managed Services16% Mobile App DevelopmentInc Dev is a Stockholm, Sweden-based UX company. They focus on UX/UI Design and Custom Software Development.
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Undisclosed$100 - $149 / hr10 - 49Laholm, Sweden
Services provided
10% Blockchain25% Custom Software Development20% AI Development +4 services20% IT Strategy Consulting15% Other IT Consulting and SI5% Mobile App Development5% Product DesignCustom software development firm Meta Bytes is headquartered in Laholm, Sweden. They specialize in Custom Software Development and IT strategy consulting.
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$10,000+Undisclosed50 - 249Stockholm, Sweden
Services provided
10% Blockchain40% Custom Software Development20% IT Strategy Consulting +4 services10% IoT Development10% Other Application Development5% Computer Engineering5% Mobile App DevelopmentErlang Solutions is a software development company. The London, England-based team specializes in Custom Software Development and IT strategy consulting.
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$25,000+$50 - $99 / hr50 - 249Malmo, Sweden
Services provided
30% Blockchain60% IT Managed Services10% Custom Software DevelopmentSee all 16 projectsRite NRG is a blockchain development company recognized for its proficient Smart Contract Development and comprehensive blockchain solutions. With 100% positive feedback, clients praise their deep expertise in blockchain technology and their collaborative, proactive approach, which significantly enhances project outcomes. Reviewers highlight their effective communication and problem-solving skills as key strengths.
Reviews mention Transparent
Client feedback highlights Rite NRG's transparency as a key strength. They consistently communicate any potential issues, such as delays or budget overruns, before they arise, fostering a collaborative environment. One client noted, 'Rite NRG has been very transparent with everything they've done,' emphasizing their proactive approach to project management. Additionally, their willingness to share knowledge and improve internal processes further underscores their commitment to transparency, making them a reliable partner for technology transformation.-
Custom Software Dev for Security & Time Mgmt Solutions Co
5.0 Mar 6, 2024Rite NRG has been very transparent with everything they've done. We've worked on an agile model, collaborating on making pre-estimations. Still, as complexity arises compromising our first assumptions, they're very transparent about it, which is nice. For example, if it looks like we won't be on time or over budget, they escalate the issue with us before it happens.
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0 of 1 Blockchain reviews are 5 stars$50,000 – $199,999 avg. project costRead 1 ReviewBlockchain PROJECT HIGHLIGHT
Web3 Solution & Mobile App Dev for Mobile App Design Agency
4.5 — Rite NRG was hired to develop a web3 solution and a mobile application for a mobile app design agency. Rite NRG developed an app anchored on blockchain technology, crafting smart contracts using Read moreWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently commend Rite NRG for delivering strong value for money, highlighting that their pricing aligns well with project budgets. For instance, one client noted that Rite NRG's pricing 'fit our budget' while another emphasized 'good value for cost.' Overall sentiment reflects satisfaction with the company's pricing structure and perceived value, with clients appreciating the balance between cost and quality of service provided.Was this helpful?
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$10,000+$25 - $49 / hr10 - 49Malmö, Sweden
Services provided
85% Blockchain5% Custom Software Development5% Mobile App Development +1 service5% Web DevelopmentSee all 9 projectsilink is a reliable outsourcing company known for providing qualified specialists, particularly in Blockchain Development. With 100% positive feedback, clients commend their timely delivery and meeting of all KPIs. Their high ratings, budget-friendly pricing, and cultural alignment make them a preferred choice for project needs.
Reviews mention Knowledgeable
The feedback indicates a strong sentiment of knowledgeability regarding ilink. Clients commend their technical expertise, particularly in integrating complex systems such as banking solutions and cryptocurrency features. One client noted their impressive customer focus and quality of work, stating, 'They are extremely responsive' and 'everything we asked for was completed.' Overall, the reviews reflect a high level of satisfaction with ilink's knowledgeable approach to project execution.-
Crypto Wallet Development for Cryptocurrency Company
5.0 Oct 28, 2022We're impressed with their customer focus, quality of work, and technical knowledge. We also appreciate their willingness to go above and beyond for the client are their greatest strengths.
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Industry Experience
Ilink has demonstrated strong expertise across multiple industries, including Information Technology, Financial Services, and Business Services. Clients have praised their responsiveness, quality of work, and ability to meet project deadlines. In the Financial Services sector, they excelled in developing innovative payment solutions, while in Business Services, they facilitated the creation of transparent hiring platforms and cryptocurrency wallets. Overall, sentiment is highly positive, indicating that Ilink is a valuable partner for projects in these industries.
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Information technology Financial services Business services SoftwareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently praise ilink for providing excellent value for money, noting that their pricing aligns well with budget expectations. One CEO highlighted that ilink's pricing fit their budget while delivering good value for the cost. Another client emphasized that ilink's expertise resulted in a significantly lower cost for international transactions. Overall, the sentiment reflects satisfaction with the balance of cost and quality, with clients feeling they received substantial returns on their investments.Was this helpful?
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$5,000+< $25 / hr1,000 - 9,999Stockholm, Sweden
Services provided
60% Blockchain10% Cybersecurity10% Marketing Strategy +2 services10% Mobile App Development10% Web DesignSee all 2 projectsERRNA offers services including Blockchain Development, Smart Contract Development, and Decentralized Application (DApp) Development. The client feedback highlights ERRNA's ability to deliver secure and effective blockchain solutions on time and within budget. Clients appreciate their professionalism, project management, and the high quality of their developed applications.
Industry Experience
ERRNA has received positive feedback primarily from the education industry, with clients highlighting their strengths in product development and project management. Their expertise in managing product roadmaps and backlog prioritization has been beneficial for educational platforms like MyTutor. Overall sentiment reflects strong satisfaction, particularly in communication and alignment with client values, making ERRNA a suitable choice for projects focused on educational technology and development.
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EducationWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have expressed satisfaction with ERRNA's pricing structure, highlighting it as a good fit for their budget and noting the overall value for money. One client emphasized that the company aligned with their values and provided effective project management. Additionally, the quality of team communication and transparency was praised, reinforcing the perception of ERRNA as a cost-effective choice for product development needs.Was this helpful?
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$10,000+$25 - $49 / hr50 - 249Göteborg, Sweden
Services provided
15% Blockchain30% AR/VR Development25% Mobile App Development +3 services15% Low/No Code Development10% Web Development5% BrandingSee all 1 projectsVirtual Dive Studios offers comprehensive game development services, including ideation, 3D modeling, UI/UX design, programming, optimization, and post-launch support. Reviews highlight their exceptional project management, attention to detail, and ability to transform visions into high-quality, engaging mobile games. Clients commend their professionalism, seamless communication, and successful project outcomes, such as high user engagement and significant revenue generation.
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List of the Top 2 Sweden Blockchain Development Companies
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$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
Ability to deliver
33.6/40.015.8/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
30% Blockchain70% Other -
$5,000+$25 - $49 / hrFreelancerStockholm, Sweden
Ability to deliver
19.4/40.013/20 Reviews1.8/10 Clients & Experience4.6/10 Market PresenceService focus
80% Blockchain20% Other -
$5,000+$100 - $149 / hr10 - 49Piteå, Sweden
Ability to deliver
14.3/40.00/20 Reviews9/10 Clients & Experience5.3/10 Market PresenceService focus
15% Blockchain85% Other -
$10,000+$100 - $149 / hr2 - 9Stockholm, Sweden
Ability to deliver
8.4/40.00/20 Reviews3.8/10 Clients & Experience4.6/10 Market PresenceService focus
40% Blockchain60% Other -
UndisclosedUndisclosed2 - 9Stockholm, Sweden
Ability to deliver
5.3/40.00/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
40% Blockchain60% Other -
UndisclosedUndisclosed10 - 49Uppsala, Sweden
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Blockchain -
$5,000+$50 - $99 / hr50 - 249Stockholm, Sweden
Ability to deliver
4.9/40.00/20 Reviews0/10 Clients & Experience4.9/10 Market PresenceService focus
20% Blockchain80% Other -
$1,000+$25 - $49 / hr10 - 49Stockholm, Sweden
Ability to deliver
6.1/40.00/20 Reviews2.1/10 Clients & Experience4/10 Market PresenceService focus
17% Blockchain83% Other -
Undisclosed$100 - $149 / hr10 - 49Laholm, Sweden
Ability to deliver
5.3/40.00/20 Reviews0/10 Clients & Experience5.3/10 Market PresenceService focus
10% Blockchain90% Other -
$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Ability to deliver
35.7/40.017.2/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
10% Blockchain90% Other -
$10,000+Undisclosed50 - 249Stockholm, Sweden
Ability to deliver
12.2/40.00/20 Reviews4.8/10 Clients & Experience7.4/10 Market PresenceService focus
10% Blockchain90% Other -
$25,000+$50 - $99 / hr50 - 249Malmo, Sweden
Ability to deliver
32.5/40.017.4/20 Reviews9.5/10 Clients & Experience5.5/10 Market PresenceService focus
30% Blockchain70% Other -
$10,000+$25 - $49 / hr10 - 49Malmö, Sweden
Ability to deliver
27.5/40.016.4/20 Reviews4.8/10 Clients & Experience6.3/10 Market PresenceService focus
85% Blockchain15% Other -
$5,000+< $25 / hr1,000 - 9,999Stockholm, Sweden
Ability to deliver
32.9/40.016.2/20 Reviews9.7/10 Clients & Experience7/10 Market PresenceService focus
60% Blockchain40% Other -
$10,000+$25 - $49 / hr50 - 249Göteborg, Sweden
Ability to deliver
12.5/40.00/20 Reviews8.5/10 Clients & Experience4/10 Market PresenceService focus
15% Blockchain85% Other
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