Top Blockchain Companies & Developers in Stockholm
5 Leaders 7 Contenders
12 Companies
List of the Top Stockholm Blockchain Development Companies
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Featured
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$25,000+$50 - $99 / hr10 - 49Serves Stockholm, SwedenServices provided
70% Blockchain30% Custom Software DevelopmentSee all 18 projectsNextrope 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.
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, 2022The 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.
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EIP-20 Ethereum Token for Web3 Solution Provider
5.0 Mar 12, 2022It 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.
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Blockchain Platform Dev for Real Estate Investment Platform
5.0 Dec 5, 2025Beyond 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.
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Software Development for Interim CFO Company
5.0 Jul 16, 2020It’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.
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1 of 1 Blockchain reviews are 5 stars$10,000 – $49,000 avg. project costRead 1 ReviewBlockchain 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 moreWas this helpful?
Industry Experience
Nextrope has garnered positive feedback across multiple industries, including Real Estate, Business Services, Financial Services, Education, and Information Technology. Their expertise in blockchain solutions, project management, and adaptability has been highlighted, particularly for developing platforms and consulting on tokenization processes. Clients praised their proactive communication, timely delivery, and ability to provide tailored solutions. Overall, sentiments are highly favorable, suggesting that they are well-suited for projects in technology-driven sectors, particularly those involving blockchain and digital platforms.
Read All ReviewsSelect Industry to see insights
Information technology Financial services IT Services Education Engineering Retail Media Business services Real estate ManufacturingWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat 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.Was this helpful?
$5,000+$50 - $99 / hr10 - 49Serves Stockholm, SwedenServices provided
90% Blockchain10% Web DevelopmentSee all 17 projectsRedDuck is a Blockchain Development firm specializing in Smart Contract Development, Distributed Ledger Technology, and Decentralized Application Development. They consistently receive positive feedback for their technical proficiency, with approximately 95% of reviewers commending their project management and responsiveness. Clients particularly appreciate their strategic vision and ability to deliver comprehensive blockchain solutions that align with business objectives.
4 of 4 reviews are 5 stars3 new reviews for Blockchain services$50,000 – $199,999 avg. project costRead 4 Recent ReviewsReviewed 4 times in the past 6 months
RedDuck has received positive feedback over the last six months, highlighting their effective problem-solving and timely delivery. Clients appreciate their responsiveness and ability to clarify assumptions during projects. For instance, one client noted that RedDuck's architectural advice significantly influenced their project direction. Another client praised their creative approach in developing smart contracts and dApps, emphasizing the company's commitment to innovation. Overall, clients express satisfaction with RedDuck's performance and communication, with no major areas for improvement identified.Was this helpful?
8 of 8 Blockchain reviews are 5 stars3 new reviews for Blockchain in past 6 months$50,000 – $199,999 avg. project costRead 8 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?
Industry Experience
RedDuck has demonstrated notable expertise across various industries, including Manufacturing, Information Technology, Telecommunications, Financial Services, and Gaming. Clients commend RedDuck for their strong project management, responsive communication, and ability to deliver complex blockchain solutions, particularly in Financial Services where they excelled in DeFi projects. The overall sentiment is highly positive, highlighting RedDuck's capacity for innovative problem-solving and adaptability, making them a suitable partner for projects in technology-driven sectors.
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Manufacturing Information technology Logistics & Supply Chain Gaming Other Industry Financial servicesWas this helpful?
$6,400 Allocation of an ethereum smart-contract developer $9,600 Allocation of a senior ethereum developer RWA/DeFi $12,800 Allocation of a tech-lead developer RWA/DeFi/Web3View PackagesSoftware Development (Ethereum/EVM)
Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.Was this helpful?
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$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
Services provided
10% Blockchain20% AI Development15% Custom Software Development +4 services15% Mobile App Development15% UX/UI Design15% Web Development10% IT Staff AugmentationSee all 44 projectsTallium Inc. is a multifaceted software development and UX/UI design company noted for delivering comprehensive digital solutions, including mobile and web applications, product audits, and AI consulting. Across various reviews, 100% of clients commend their excellent project management, strong technical expertise, and exceptional communication, with no significant areas for improvement mentioned. Tallium Inc.'s ability to deliver high-quality work on time consistently earns them high praise from diverse industries.
4 of 4 reviews are 5 stars$50,000 – $199,999 avg. project costRead 4 Recent ReviewsReviewed 4 times in the past 6 months
Tallium Inc. has received positive feedback from clients in the past six months, highlighting their expertise in mobile and web development. Clients praised the team's project management and communication skills, noting timely deliveries and a strong culture fit. One client emphasized the impressive design quality and thoroughness in addressing project needs. Overall, sentiment is highly favorable, with clients reporting successful project outcomes and no significant areas for improvement mentioned.Was this helpful?
Industry Experience
Tallium Inc. has demonstrated strong capabilities across several industries, including Medical, Education, Home Services, Information Technology, and Financial Services. Feedback highlights their expertise in mobile and web development, UX/UI design, and project management, with clients praising their professionalism, timely delivery, and ability to understand complex requirements. Overall sentiment is positive, particularly in Medical and Education sectors, where their contributions significantly enhanced clients' service delivery and product quality.
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Advertising & marketing Financial services Medical Information technology Retail Publishing Nonprofit Education Hospitality & leisure Software Design Gambling Healthcare Environmental Services Automotive Consumer Products Arts, entertainment & music Other Industry IT Services Home Services Gaming Business servicesWas this helpful?
More responsive than most other service providers
Get in TouchTallium Inc. is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
Review Rating from Clients
4.8/5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
Reviewers in Stockholm highlight Tallium Inc.'s technical proficiency in web and app development, noting their commitment to understanding client needs and delivering on time. They value their grit, cost-efficiency, and effective remote communication, which supports successful project outcomes and future growth.Read Local ReviewsWas 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?
See All Locations (33)Stockholm, Sweden
61 Sandhamnsgatan
Stockholm, Sweden 115 282 - 5
+1-435-800-0086
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$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
Services provided
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 Collaborative
Clients have expressed a high level of satisfaction with OpenGeeksLab's collaborative approach. Feedback highlights the seamless integration of their software engineer into existing teams, promoting clear and efficient communication through tools like Slack and Jira. Clients noted the developer's responsiveness and engagement, as well as their commitment to understanding project requirements. One client specifically appreciated the developer's assistance in interviewing other candidates, showcasing a dedication to finding the best fit for the team.-
Staff Augmentation for Custom Software Dev Company
5.0 Mar 16, 2023The staff augmentation model works well for our project, as we are able to integrate OpenGeeksLab's software engineer seamlessly into our existing team. The communication is clear and efficient, and we are able to work collaboratively with their specialist to define project requirements, set deadlines, and track progress. We are impressed with their experience and credentials, as well as their responsiveness and willingness to work collaboratively with our team.
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Industry Experience
OpenGeeksLab has demonstrated expertise across various industries, including retail apparel and fashion, cryptocurrency, education, and business services. Clients consistently highlight the company's strengths in web and mobile application development, effective project management, and strong communication. Positive feedback emphasizes their ability to enhance user experience, increase sales, and deliver projects on time. Overall, OpenGeeksLab is well-suited for businesses seeking robust digital solutions in dynamic sectors such as e-commerce, technology, and education.
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Beauty & Cosmetics Logistics & Supply Chain Advertising & marketing Other Industry Education Software Business servicesWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
OpenGeeksLab is recognized for delivering strong value for money, with several clients highlighting their cost-effectiveness and quality of service. For instance, one client noted that their pricing fit the budget and provided great value, while another emphasized their flexibility and cost-efficiency compared to competitors. Overall, feedback reflects a positive sentiment regarding the company's pricing structure, with many clients expressing satisfaction with the outcomes relative to their investment.Was this helpful?
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$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Services provided
10% Blockchain20% Custom Software Development20% Mobile App Development +4 services20% Web Development10% AI Development10% E-Commerce Development10% IT Staff AugmentationSee all 19 projectsSlashdev is a versatile software development company specializing in app development, web services, and recruitment of tech specialists. The company is praised for its strong communication, timely delivery, and high-quality outputs, with around 90% of reviews reflecting positive experiences. Clients frequently commend Slashdev's flexibility, technical insight, and commitment to exceeding expectations, with 70% noting their effective project management and problem-solving capabilities.
Industry Experience
Slashdev has demonstrated expertise across various industries, including real estate, education, information technology, and utilities. Clients have praised their strong project management, technical skills, and ability to deliver innovative solutions that enhance operational efficiency. Overall sentiment is highly positive, particularly in the real estate and education sectors, where Slashdev's contributions led to significant improvements in user experience and codebase stability. This makes Slashdev a strong candidate for projects in these fields, as well as others requiring custom software development.
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Utilities Business services Other Industry Retail IT Services Software Information technology Education Healthcare Real estateWas this helpful?
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See All Locations (8)Stockholm, Sweden
Mäster Samuelsgatan 36
Stockholm, Sweden 111 572 - 5
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Review Rating from Clients
5.0/5.0
Quality
5.0
Schedule
5.0
Cost
5.0
Willing to Refer
5.0
Reviewers in Stockholm praise Slashdev for their expertise in mobile app development, including iOS and React Native, delivering high-quality, timely results for banking and EdTech projects. Clients highlight their transparency, professionalism, and ability to match talented senior engineers quickly.Read Local ReviewsWas 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 utilizing Hyperledger technology. Reviews highlight their agility, responsiveness, and effective communication, with 100% of feedback emphasizing a successful prototype completion. Clients appreciate their competitive pricing, although suggestions include exploring frameworks beyond Ethereum. Overall, Blocksism delivers efficiently on niche blockchain solutions with a clear emphasis on client collaboration.
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 - 49Stockholm, 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.
Read moreSee All Locations (2)Stockholm, Sweden
7 Nybrogatan
Stockholm, Sweden 114 346 - 9
+46703983649
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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.
Read moreSee All Locations (5)Stockholm, Sweden
Blekholmstorget 30 F
Stockholm, Sweden 111 6421 - 30
+44 (0) 20 7456 1020
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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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$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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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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List of the Top 5 Stockholm Blockchain Development Companies
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$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 - 249Stockholm, Sweden
Ability to deliver
33.4/40.015.6/20 Reviews10/10 Clients & Experience7.8/10 Market PresenceService focus
30% Blockchain70% Other -
$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
Ability to deliver
36.1/40.019.8/20 Reviews10/10 Clients & Experience6.3/10 Market PresenceService focus
10% Blockchain90% Other -
$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Ability to deliver
35.9/40.017.4/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
10% Blockchain90% 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 - 49Stockholm, Sweden
Ability to deliver
14.3/40.00/20 Reviews9/10 Clients & Experience5.3/10 Market PresenceService focus
15% Blockchain85% 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 -
$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 -
$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 -
UndisclosedUndisclosed10 - 49Uppsala, Sweden
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Blockchain
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