Top Blockchain Companies & Developers in Stockholm
11 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 Reasonable pricing
Clients frequently commend Nextrope for their reasonable pricing and flexibility. One CEO noted, "It’s amazing how much we achieved with such reasonable budget and time!" This sentiment reflects a broader appreciation for the cost-effectiveness of their services, emphasizing the value delivered within budget constraints. Overall, clients perceive Nextrope as a cost-efficient partner that supports project goals without compromising quality.-
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 reviews is 5 stars1 new review for Blockchain services$10,000 – $49,000 avg. project costRead 1 Recent ReviewReviewed 1 time in the past 6 months
In recent reviews, clients highlighted Nextrope's proactive approach and flexibility in adapting to evolving project requirements. A CEO noted significant outcomes, including a 60% reduction in manual work and automated onboarding processes. The team's commitment to understanding the broader business context and providing thoughtful recommendations was particularly praised. Overall, the sentiment is highly positive, with clients appreciating Nextrope's ownership and agility, although minor areas for improvement were mentioned.Was this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently regard Nextrope as providing excellent value for money, often highlighting the high quality of deliverables relative to costs. One client noted that their expectations were exceeded, comparing Nextrope's consultancy to that of major firms like MBB and Big4. Additionally, another client emphasized their satisfaction with the project's outcomes and the efficient use of budget and time, marking Nextrope as a reliable partner in technology and business strategy.Was this helpful?
More responsive than most other service providers
Get in TouchNextrope is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
$5,000+$50 - $99 / hr10 - 49Serves Stockholm, 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.
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?
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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Financial services Other Industry Logistics & Supply Chain GamingWas 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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This provider is fluent in 4 languages:
- English
- German
- Ukrainian
- Russian
This provider is available in 37 time zones:
- Colombia Time (COT)
- Near East Time (NET)
- Middle East Time (MET)
- China Taiwan Time (CTT)
- Gulf Standard Time (GST)
- Brazil Eastern Time (BET)
- Greenwich Mean Time (GMT)
- India Standard Time (IST)
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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 IT services company offering tailored solutions for software development, web and mobile app development, and recruitment of specialized developers. Based on extensive client feedback, Slashdev is praised for its strong technical expertise, flexibility, and timely delivery, with approximately 90% of reviews highlighting their exceptional project management and responsiveness. Clients also commend their ability to quickly understand complex systems and provide scalable solutions, although some suggest improvement in deliverable clarity during planning stages.
Reviews mention Proactive
The overall sentiment regarding Slashdev's proactive approach is highly positive. Clients highlighted their ability to quickly internalize product logic and user requirements, with one stating, "They think beyond tickets, take real ownership, and communicate like partners." Another client noted that Michael was "proactive and professional in all regards," facilitating quick responses and seamless project management. This proactive stance not only ensured timely delivery but also fostered a collaborative environment, significantly enhancing project outcomes.-
Frontend Development for Educational Mobile App
5.0 May 6, 2022Michael was proactive and professional in all regards.
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Web Development Services for Education Company
5.0 May 19, 2025Milestones were delivered on or ahead of schedule, and when scope shifted, they flagged trade-offs early and helped re-prioritize so critical dates stayed intact. Response times were strong (same day for routine items; near-immediate for urgent issues), and they were proactive about risks and handoffs. The net effect: work got done, on time, with minimal ceremony.
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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?
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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
Stockholm clients value Slashdev's proficiency in mobile app solutions, from banking to EdTech, emphasizing rapid talent placement and expert support. They highlight seamless workflows, knowledgeable teams, and fair pricing, demonstrating their ability to handle diverse, complex projects efficiently.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 Timely
OpenGeeksLab consistently received positive feedback regarding their timeliness in project delivery. Clients praised their adherence to deadlines, with one stating they 'consistently delivered items on time' and another highlighting their ability to meet tight deadlines for a project with IKEA. Overall, the sentiment is overwhelmingly favorable, with clients appreciating the proactive communication and responsive nature of the team, which contributed to the successful and timely completion of projects.-
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.
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Web-Based NFT App Dev for Metaverse Platform
5.0 Oct 19, 2022I admire the overall approach and workflow: thoughtful planning, software architecture, well-established communication, timely delivery, and well-coordinated teamwork. Also, I’d like to mention high-quality post-release support and adding new features.
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Cross Platform App Dev for Tech Consultant
5.0 Aug 1, 2018Internally, everything is going perfectly. We are projected to finish on time and use this app as an asset for our business. It is very rare to find a team of developers that deliver on time, which we appreciate.
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App Development for Sports Services Company
5.0 Jul 21, 2018The company met all the deadlines and the project was completed on time. The app is now available on the App Store and Play Market, and the final cost was within the original estimates.
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Mobile App Dev for MCQ & Aptitude Test Platform
5.0 Mar 30, 2018He updated us on a regular basis and worked efficiently to meet deadlines. They never missed a deadline, even when we delayed payment due to bank issues.
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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 - 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 4 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 -
$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Ability to deliver
35.3/40.016.8/20 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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