Top Blockchain Companies & Developers in Slovenia

Ratings Updated: October 18, 2026

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9 Companies

Country: Slovenia

List of the Top Slovenia Blockchain Development Companies

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RedDuck

5.0 17 reviews

Verified Clutch Guarantee

$5,000+

$50 - $99 / hr

10 - 49

Serves Slovenia

Services provided

90% Blockchain

10% Web Development

RedDuck 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.

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Reviews mention Proactive
RedDuck has received positive feedback for its proactive approach in project management. Clients noted their commitment to timely delivery and effective communication, with regular updates and responsiveness to needs. One client highlighted the team's ability to manage a complex project with both technical precision and creative vision, while another praised their productivity and accountability. Overall, RedDuck's proactive stance has contributed significantly to client satisfaction and project success.

Platform Development for Financial Services Company

5.0 Jul 31, 2023

RedDuck has been very productive in their time management and has always delivered on time. They have been very proactive in communication with daily stand-ups and managers holding the junior devs responsible for the delivery timeline promised.
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Blockchain Development for FinTech Company

5.0 Apr 23, 2025

What 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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4 of 4 reviews are 5 stars

3 new reviews for Blockchain services

$50,000 – $199,999 avg. project cost

Reviewed 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.
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More responsive than most other service providers

RedDuck is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.
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$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/Web3

Software Development (Ethereum/EVM)
Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.
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Abelium R&D

5.0 11 reviews

$50,000+

$100 - $149 / hr

10 - 49

Ljubljana, Slovenia

Services provided

10% Blockchain

20% AI Development

20% Custom Software Development +6 services

15% IT Strategy Consulting

10% Business Consulting

10% Web Development

5% Digital Strategy

5% Logistics & Supply Chain Consulting

5% Mobile App Development

Abelium R&D is a research and development company specializing in custom software solutions, particularly in energy optimization, forecasting services, and digital transformations. They are consistently praised for their expertise, flexibility, and proactive project management. Approximately 100% of reviews highlight their innovative approach and high-quality deliverables, with no negative feedback reported. Abelium R&D's ability to adapt to client needs and provide scalable, effective solutions is frequently noted.

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Reviews mention Great project management
Clients consistently praised Abelium R&D for its exceptional project management capabilities, noting their proactive communication and adherence to timelines. The Editor-in-Chief from the University of Ljubljana highlighted weekly stand-ups and effective support during critical migrations, ensuring seamless operations. Similarly, the Project Manager at GoOpti emphasized Abelium's agile approach and practical mindset, which facilitated smooth cooperation and timely deliverables. Overall, the sentiment reflects a strong appreciation for their organized and responsive management style.

Platform Dev & Maintenance for Scientific Journal

5.0 Jan 16, 2024

The highly professional management style was supported by weekly stand-ups with their project manager who made sure we followed set timelines and communicated with the rest of their team. For communication, we used email, phone, and had also some in-person meetings. Abelium R&D is a highly experienced IT company. Their team is enthusiastic, very flexible and able to adopt suitable strategies according to the changing situations.
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2 of 2 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 2 times in the past 6 months
Abelium R&D has received highly positive feedback over the past six months, with clients praising their innovative approaches and commitment to project ownership. One client highlighted the successful development of an AI-driven energy forecasting software that generated over €1M in revenue. Another emphasized their timely delivery and high-quality work in PV generation forecasting, noting their creativity and responsiveness. Overall, clients appreciate the company's strong culture, alignment with values, and ability to adapt to project needs.
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Industry Experience

Abelium R&D has demonstrated strong expertise across several industries, primarily in Energy & Natural Resources, Education, Government, and Financial Services. Feedback highlights their innovative solutions in energy forecasting and digital transformation for government services, showcasing their strengths in project management, responsiveness, and technical capabilities. Their work has consistently yielded high satisfaction, especially in collaborative environments requiring tailored digital solutions. Overall sentiment is highly favorable, indicating that potential clients in these sectors can expect substantial value and effective partnership.
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Energy & natural resources Chemicals & Biotechnology Research Education Government Financial services Consulting Transportation

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Average Project Cost Breakdown

$200,000 to $999,999 (5) $50,000 to $199,999 (3) $10,000 to $49,000 (1)

What Clients Have Said
Abelium R&D has received positive feedback regarding its overall cost and value for money. Clients have highlighted their competitive pricing, with one stating they were selected as the 'most economical provider' for a public service contract. Another client noted 'good value for cost,' emphasizing satisfaction with the quality of work delivered. Overall, clients appreciate the balance of cost against high-quality, innovative solutions, often leading to significant operational savings.
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Devleet

4.8 3 reviews

$10,000+

$50 - $99 / hr

10 - 49

Ljubljana, Slovenia

Services provided

25% Blockchain

20% Custom Software Development

10% AR/VR Development +8 services

10% Low/No Code Development

10% Web Development

7% Mobile App Development

5% Business Consulting

5% Internet & Technology Law

4% UX/UI Design

2% Graphic Design

2% Video Production

Devleet is a versatile software development company specializing in mobile and web applications, known for their proficiency in platform optimization, maintenance, and integration. Reviewers consistently praise Devleet for their quick responses, high-quality work, and effective project management, with 100% positive feedback. Many clients highlight their preparedness and willingness to exceed expectations, ensuring projects are smoothly executed and well-managed.

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Reviews mention Knowledgeable
Client feedback highlights Devleet's extensive knowledge and expertise in project execution. One client noted the team's preparedness and willingness to go the extra mile, stating, "These guys came to meetings prepared and always willing to go an extra mile." Another emphasized their impressive management and the ability to bring in external expertise when needed, mentioning, "Their knowledge base is astonishing!" Overall, the sentiment reflects strong confidence in Devleet's capabilities and professionalism.

Payment Processor Dev for Blockchain Utility Company

5.0 Dec 13, 2022

One can easily notice that these guys learn and learn a lot to keep the edge. Every step is double checked and I was offered in few instances beta testing opportunity. Devleet has very competitive and competent management, where they lack the edge they bring people with required and verified competencies from outside to upgrade their base. Their knowledge base is astonishing!
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Industry Experience

Devleet has demonstrated expertise in various industries, notably Software and Environmental Services. Clients praised their quick responses, quality of work, and effective project management, particularly in SaaS and blockchain optimization. The software industry feedback indicates a strong capability in mobile and web development, while the environmental sector highlights their adeptness in platform upgrades for innovative technologies. Overall, Devleet is well-regarded for its collaborative approach and agility, making them a suitable partner for projects in technology-driven fields.
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Software Environmental Services

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Average Project Cost Breakdown

$10,000 to $49,000 (2)

What Clients Have Said
Clients consistently praise Devleet for their competitive pricing and exceptional value for money. One client highlighted the smooth execution of a platform upgrade, noting the relief of having a well-defined project at a reasonable cost. Another emphasized the company's willingness to go the extra mile, providing thorough updates and maintaining strong communication, which enhanced the overall experience. The sentiment reflects satisfaction with the balance between cost and quality of service.
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Slovenia (1) Switzerland (1)

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DATA VALLIS

Not yet reviewed

$10,000+

$50 - $99 / hr

10 - 49

Maribor, Slovenia

Services provided

60% Blockchain

20% Custom Software Development

5% E-Commerce Development +3 services

5% Mobile App Development

5% UX/UI Design

5% Web Development

DATA VALLIS is a Blockchain company. They specialize in Blockchain and Custom Software Development and are located in Maribor, Slovenia.
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Proxima Interactive

Not yet reviewed

$25,000+

$50 - $99 / hr

10 - 49

Ljubljana, Slovenia

Services provided

20% Blockchain

20% API Development

20% Custom Software Development +2 services

20% Mobile App Development

20% Web Development

Proxima Interactive is an app development company. Located in Ljubljana, Slovenia, the company was founded in 2007. Their services include Mobile App Development and Blockchain.
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Noctocode

Not yet reviewed

$25,000+

$50 - $99 / hr

50 - 249

Ljubljana, Slovenia

Services provided

20% Blockchain

20% AI Development

20% Cloud Consulting & SI +2 services

20% Mobile App Development

20% Web Development

Noctocode is a cloud consulting & SI company. Based in Ljubljana, Slovenia, the agency was launched in 2014. Their team focuses on cloud consulting & SI and Web Development.
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Chain Effect

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Ljubljana, Slovenia

Services provided

20% Blockchain

25% UX/UI Design

15% Mobile App Development +3 services

15% Web Design

15% Web Development

10% Digital Strategy

Chain Effect is an user experience company headquartered in Ljubljana, Slovenia. Their services include UX/UI Design and Blockchain.
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Greymatters d.o.o.

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Ljubljana, Slovenia

Services provided

10% Blockchain

30% Custom Software Development

20% Mobile App Development +3 services

20% Web Development

10% IT Strategy Consulting

10% IoT Development

Greymatters d.o.o. Is a custom software development company based in Ljubljana, Slovenia. They provide Custom Software Development and Web Development.
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Sugar-Free Software

Not yet reviewed

$5,000+

$25 - $49 / hr

2 - 9

Izola, Slovenia

Services provided

10% Blockchain

40% Custom Software Development

30% Web Development +1 service

20% Mobile App Development

Sugar-Free Software is a custom software development firm. Their small team of employees is headquartered in Izola, Slovenia. Their team provides Custom Software Development and Web Development.
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Cryptix AG

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Ljubljana, Slovenia

Services provided

25% Blockchain

25% Cloud Consulting & SI

25% Cybersecurity +1 service

25% IT Strategy Consulting

Cryptix AG, an IT strategy consulting company, offers IT strategy consulting and cloud consulting & SI. The agency is headquartered in Zug, Switzerland and Wien, Austria.
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Ljubljana, Slovenia

8 Ameriška ulica
Ljubljana, Slovenia 1000
10 - 15

+41 41 710 31 61

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Focus

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Niche

Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Abelium R&D

2 Devleet

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 2 Slovenia Blockchain Development Companies

Abelium R&D

$50,000+

$100 - $149 / hr

10 - 49

Ljubljana, Slovenia

Ability to deliver

30.8/40.0

16.8/20 Reviews

6.4/10 Clients & Experience

7.7/10 Market Presence

Service focus

10% Blockchain

90% Other

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Devleet

$10,000+

$50 - $99 / hr

10 - 49

Ljubljana, Slovenia

Ability to deliver

23.6/40.0

16.2/20 Reviews

2.5/10 Clients & Experience

4.9/10 Market Presence

Service focus

25% Blockchain

75% Other

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DATA VALLIS

$10,000+

$50 - $99 / hr

10 - 49

Maribor, Slovenia

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

60% Blockchain

40% Other

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Proxima Interactive

$25,000+

$50 - $99 / hr

10 - 49

Ljubljana, Slovenia

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

20% Blockchain

80% Other

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Noctocode

$25,000+

$50 - $99 / hr

50 - 249

Ljubljana, Slovenia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% Blockchain

80% Other

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Chain Effect

$10,000+

$50 - $99 / hr

2 - 9

Ljubljana, Slovenia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% Blockchain

80% Other

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Greymatters d.o.o.

$10,000+

$50 - $99 / hr

2 - 9

Ljubljana, Slovenia

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Blockchain

90% Other

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Sugar-Free Software

$5,000+

$25 - $49 / hr

2 - 9

Izola, Slovenia

Ability to deliver

3/40.0

0/20 Reviews

0/10 Clients & Experience

3/10 Market Presence

Service focus

10% Blockchain

90% Other

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Cryptix AG

Undisclosed

Undisclosed

10 - 49

Ljubljana, Slovenia

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

25% Blockchain

75% Other

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Specialties

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Top Blockchain Companies & Developers in Slovenia

List of the Top Slovenia Blockchain Development Companies

Reviews mention Proactive

Platform Development for Financial Services Company

Blockchain Development for FinTech Company

Reviewed 4 times in the past 6 months

RedDuck is very responsive

Software Development (Ethereum/EVM)

Reviews mention Great project management

Platform Dev & Maintenance for Scientific Journal

Reviewed 2 times in the past 6 months

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Knowledgeable

Payment Processor Dev for Blockchain Utility Company