Top Smart Contract Development Companies in Sweden
12 Companies
List of the Top Sweden Smart Contract Developers
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Infograins Software Solutions
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$5,000+$50 - $99 / hr250 - 999Örebro, SwedenServices provided
30% Blockchain20% AI Development15% Custom Software Development +315% Mobile App Development10% IT Staff Augmentation10% Web DevelopmentFocus Areas
20% Smart Contract Development30% Web320% Ethereum Development +220% Metaverse Development10% Initial Coin Offering ConsultingSee all 89 projectsInfograins Software Solutions is a Blockchain Development company that excels in integrating advanced technologies like AI, blockchain, and smart contracts into practical solutions. The company consistently receives high ratings for its structured project management, timely delivery, and strategic insights, with approximately 67% of reviewers highlighting their exceptional communication and technical expertise. Clients frequently commend their innovative approach and value for cost.
Reviews mention Easy to work with
Clients consistently commend Infograins Software Solutions for their ease of collaboration and effective communication. For instance, one client noted their project management team's proactive engagement and timely responses, stating, 'They are really good into this; the team... always connected with us to discuss plans.' Another client highlighted their straightforward communication, emphasizing, 'They were straightforward to talk to and kept us informed.' Overall, sentiment reflects a high level of satisfaction with their cooperative approach.-
Web Design & Dev for Food Firm
5.0 Jun 13, 2023They were straightforward to talk to and kept us informed as the job progressed. Skype was our primary method of contact, and they were able to finish on time. We had a wonderful experience working with them; thus, they are now our preferred web design company.
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Blockchain Services for Blockchain Company
5.0 Jun 5, 2023Easy to get in touch with them anytime, We have direct flight too, so visiting to there headquarter is very easy for me. They use SDLC process, they Used proper tools, They assign different project manager's, They create several group for communication that's how they do project management.
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2 of 2 reviews are 5 stars2 new reviews for Blockchain services$10,000 – $49,000 avg. project costRead 2 Recent ReviewsReviewed 2 times in the past 6 months
Recent reviews of Infograins Software Solutions reflect a strong overall sentiment, highlighting their expertise in integrating AI and blockchain technologies. Clients praised their structured project management, timely delivery, and proactive communication, noting significant improvements in operational efficiency and user engagement. One client specifically mentioned a 60% reduction in loan approval times and a 35% improvement in credit risk prediction accuracy. Overall, clients found them to be a strategic partner, with no major areas for improvement identified.Was this helpful?
4 of 4 Smart Contract Development reviews are 5 stars$1,000,000 – $9,999,999 avg. project costSmart Contract Development Experience
Infograins Software Solutions has garnered predominantly positive feedback in Smart Contract Development, with approximately 85% of reviews highlighting their expertise and timely delivery. Clients particularly commend their responsive communication and project management skills, with 90% satisfaction regarding outcomes. Specific strengths include the quality of their AI-powered tools and their capability to enhance blockchain security. While general feedback is favorable, a few clients suggested the potential for increased resource allocation to maximize project impact.
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Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients have frequently praised Infograins Software Solutions for their competitive pricing and excellent value for money. Many noted that the company provided high-quality deliverables within budget constraints, with one client stating they chose them due to 'pricing that fit our budget' and 'good value for the cost.' Overall, the sentiment is overwhelmingly positive, with clients expressing satisfaction with the balance between cost and the quality of services received, while acknowledging the company's commitment to meeting project deadlines.Was this helpful?
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$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Services provided
10% Blockchain20% Custom Software Development20% Mobile App Development +420% Web Development10% AI Development10% E-Commerce Development10% IT Staff AugmentationFocus Areas
25% Smart Contract Development50% Ethereum Development25% Initial Coin Offering ConsultingSee 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.
Reviews mention Transparent
Client feedback highlights a strong sentiment of transparency when working with Slashdev. One client noted the absence of gatekeeping, allowing direct communication with developers, which significantly enhanced accountability and reduced misinterpretation. Another client emphasized their 'impeccable' attention to detail and transparency. Overall, clients appreciate the clear communication and access to resources, which fosters a collaborative environment conducive to project success.-
Custom Software Dev for Luxury Footwear & Apparel Retailer
5.0 Jun 1, 2022The company demonstrates an impressive level of care and attention to detail. Their transparency is impeccable, ensuring that clients are well-informed throughout the project. This approach fosters trust and confidence in their ability to deliver results.
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Web Development Services for Education Company
5.0 May 19, 2025Project management was lean and effective. Michael was consistently attentive and quick to internalize requirements, and his updates were clear without adding process for process’s sake. We chose to manage most of the project ourselves, and Slashdev adapted seamlessly - no ticket-wall, no layers to wade through. We had direct, unfettered access to the developers, which let us iterate quickly and keep momentum. Milestones 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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Web Development Services for Education Company
5.0 May 19, 2025What stood out most is their no-gatekeeping model. Slashdev let us manage resources directly and never walled us off from the engineers doing the work. We set direction, spoke to developers in real time, and iterated fast - which is essential for a complex learning platform like ours. After dealing with the “PM → dev lead → dev → new dev” blame-game with our prior vendor, this level of transparency and access was a breath of fresh air. It eliminated misinterpretation, cut cycle time, and kept accountability crystal clear.
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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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See All Locations (8)Stockholm, Sweden
Mäster Samuelsgatan 36
Stockholm, Sweden 111 572 - 5
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$10,000+$25 - $49 / hr50 - 249Stockholm, Sweden
Services provided
30% Blockchain30% Custom Software Development20% Mobile App Development +120% Web DevelopmentFocus Areas
50% Smart Contract Development35% Initial Coin Offering Consulting15% Ethereum 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.
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 DevelopmentFocus Areas
20% Smart Contract Development20% Web315% Ethereum Development +315% Initial Coin Offering Consulting15% Smart Contract Auditing15% TokenizationSee 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 +310% AR/VR Development10% UX/UI Design10% Web DevelopmentFocus Areas
100% Smart Contract 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 StrategyFocus Areas
70% Smart Contract Development30% Ethereum DevelopmentSkilledpeople. Is a small Blockchain company located in Stockholm, Sweden. Their services include Blockchain and Business Consulting.
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$5,000+$50 - $99 / hr50 - 249Stockholm, Sweden
Services provided
20% Blockchain30% Web Development20% AI Development +310% AR/VR Development10% Custom Software Development10% Low/No Code DevelopmentFocus Areas
50% Smart Contract Development50% Web3See 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 +317% Web Development16% DevOps Managed Services16% Mobile App DevelopmentFocus Areas
45% Smart Contract Development40% Web315% Ethereum DevelopmentInc Dev is a Stockholm, Sweden-based UX company. They focus on UX/UI Design and Custom Software Development.
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$10,000+Undisclosed50 - 249Stockholm, Sweden
Services provided
10% Blockchain40% Custom Software Development20% IT Strategy Consulting +410% IoT Development10% Other Application Development5% Computer Engineering5% Mobile App DevelopmentFocus Areas
50% Smart Contract Development50% Ethereum 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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$25,000+$50 - $99 / hr50 - 249Malmo, Sweden
Services provided
30% Blockchain60% IT Managed Services10% Custom Software DevelopmentFocus Areas
10% Smart Contract Development90% Web3See 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 Honest
Clients have praised Rite NRG for their honesty and transparency throughout the project lifecycle. One client specifically noted their 'promptness, professionalism, honesty, and openness, even in difficult situations.' This sentiment reflects a strong trust in Rite NRG’s communication and problem-solving abilities, contributing to a positive working relationship. Overall, the feedback suggests a consistent commitment to integrity in their client interactions.-
Staff Augmentation for Travel & Tech Company
5.0 Oct 27, 2021What I appreciate the most is their promptness, professionalism, honesty, and openness, even in difficult situations.
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Industry Experience
Rite NRG has demonstrated strong expertise across diverse industries including Consulting, Consumer Products, IT Services, Gaming, Software, Real Estate, and Financial Services. Clients commend their commitment to tailored solutions, adaptability, and effective project management. The overall sentiment reflects satisfaction, particularly in enhancing operational efficiency and client engagement. Companies seeking development and staffing solutions in these sectors may find Rite NRG particularly beneficial, given their proven ability to deliver results and foster collaboration.
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Consulting Consumer products & services IT Services Gaming Software Information technology Real estate Financial services Consumer ProductsWas this helpful?
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See All Locations (3)Malmo, Sweden
Sodergatan 22
Malmo, Sweden 211 342 - 5
+46 70 381 70 80
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$10,000+$25 - $49 / hr10 - 49Malmö, Sweden
Services provided
85% Blockchain5% Custom Software Development5% Mobile App Development +15% Web DevelopmentFocus Areas
45% Smart Contract Development30% Ethereum Development25% Initial Coin Offering ConsultingSee all 10 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 Reliable
Clients consistently describe ilink as a reliable outsourcing partner, highlighting their ability to deliver qualified specialists promptly. One CEO noted that ilink met every KPI and provided exactly what was requested on schedule. Additionally, the efficiency in hiring a developer within a week and the seamless project management further underscores their dependable service. Overall, the sentiment reflects strong satisfaction and trust in ilink's reliability.-
Custom Software Development for AI Fashion Company
5.0 Aug 15, 2024They provide just what is requested and on schedule. Every KPI is met by them. Ilink is a reliable outsourcing company that can provide qualified specialists.
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1 of 1 Blockchain reviews are 5 stars1 new review for Blockchain in past 6 months$10,000 – $49,000 avg. project costRead 1 ReviewBlockchain PROJECT HIGHLIGHT
Custom Software Development for AI Fashion Company
5.0 — ilink provided a frontend engineer to provide custom software development for an AI fashion company. Read moreWas 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?
See All Locations (8)Malmö, Sweden
Hyllie Boulevard
Malmö, Sweden 216 252 - 5
+79293028880
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$5,000+< $25 / hr1,000 - 9,999Stockholm, Sweden
Services provided
60% Blockchain10% Cybersecurity10% Marketing Strategy +210% Mobile App Development10% Web DesignFocus Areas
20% Smart Contract Development20% Ethereum Development20% Initial Coin Offering Consulting +220% Metaverse Development20% Web3See 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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List of the Top 2 Sweden Smart Contract Developers
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$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% Blockchain50% Smart Contract Development70% 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% Smart Contract Development20% 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% Blockchain100% Smart Contract Development85% 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% Blockchain70% Smart Contract Development60% 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% Blockchain50% Smart Contract Development80% 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% Blockchain45% Smart Contract Development83% 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% Blockchain50% Smart Contract Development90% Other -
$5,000+$50 - $99 / hr10 - 49Stockholm, Sweden
Ability to deliver
35.5/40.017/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
10% Blockchain25% Smart Contract Development90% Other -
$25,000+$50 - $99 / hr50 - 249Malmo, Sweden
Ability to deliver
32.3/40.017.2/20 Reviews9.5/10 Clients & Experience5.5/10 Market PresenceService focus
30% Blockchain10% Smart Contract Development70% 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% Blockchain45% Smart Contract Development15% 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% Blockchain20% Smart Contract Development40% Other -
$5,000+$50 - $99 / hr250 - 999Örebro, Sweden
Ability to deliver
39.4/40.020/20 Reviews10/10 Clients & Experience9.4/10 Market PresenceService focus
30% Blockchain20% Smart Contract Development70% Other
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