Top Blockchain Companies & Developers in Vienna

Ratings Updated: July 13, 2026

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2 Leaders 8 Contenders

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10 Companies

Country: Austria

City: Vienna

List of the Top Vienna Blockchain Development Companies

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Nextrope

5.0 18 reviews
Premier Verified

$25,000+

$50 - $99 / hr

10 - 49

Serves Vienna, Austria

Services provided

70% Blockchain

30% Custom Software Development

Nextrope 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.

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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.
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Information technology Financial services IT Services Education Engineering Retail Media Business services Real estate Manufacturing

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Average Project Cost Breakdown

$10,000 to $49,000 (10) Less than $10,000 (4) $50,000 to $199,999 (2)

What 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.
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More responsive than most other service providers

Nextrope 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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Poland (11) United Arab Emirates (2) Estonia (1) Norway (1) England (1)

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RedDuck

5.0 14 reviews
Verified

$5,000+

$50 - $99 / hr

10 - 49

Serves Vienna, Austria

Services provided

100% Blockchain

RedDuck is a Blockchain Development company specializing in Blockchain Technology, Smart Contract Development, and Cryptocurrency Development. Across multiple reviews, clients consistently commend their technical precision, strategic vision, and timely delivery. Approximately 100% of feedback highlights RedDuck's exceptional project management and responsiveness, while 80% emphasize their ability to handle complex projects and deliver secure, user-friendly solutions.

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Reviews mention Detail-oriented
Clients consistently highlight RedDuck's detail-oriented approach, particularly in managing complex development projects. One client praised their 'technical precision and creative vision,' noting their proactive engagement and investment in project success. The team demonstrated exceptional project management, providing regular updates and adapting swiftly to feedback. Overall, clients expressed high satisfaction with RedDuck's meticulousness, professionalism, and ability to deliver quality solutions, reinforcing their reputation as a reliable development partner.

Smart Contract Development for Metaverse

5.0 May 26, 2023

The 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, 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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5 of 5 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Software Dev for Crypto Development Company
5.0 — RedDuck designed and developed a custom frontend interface for a crypto development company. The scope included conceptualizing and building an advanced algorithmic bot to interact with the Read more
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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.
Get in Touch

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View projects from:

Germany (1) India (1) South Africa (1) Switzerland (1) Thailand (1) Ukraine (1) United States (1) England (1)

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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Vention

4.9 101 reviews

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Premier Verified

$50,000+

$50 - $99 / hr

1,000 - 9,999

Wien, Austria

Services provided

10% Blockchain

10% AI Development

10% Application Testing +7 services

10% Cloud Consulting & SI

10% Custom Software Development

10% DevOps Managed Services

10% Enterprise App Modernization

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

Vention is a versatile software development company renowned for providing embedded engineering talent across various domains including backend, frontend, QA, and AI engineering. Their exceptional account management, strong partnership culture, and high-quality talent pool are frequently highlighted in client reviews. Approximately 90% of the feedback is positive, with clients lauding their responsiveness, project management, and cultural alignment.

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3 of 3 reviews are 5 stars

$50,000 – $199,999 avg. project cost

Reviewed 3 times in the past 6 months
Recent reviews of Vention indicate a strong overall sentiment, highlighting their effective project management and seamless integration with client teams. Clients praised the responsiveness and partnership-oriented approach of account managers, particularly noting the proactive support provided. Specific examples include successful delivery of a mobile MVP within four months and the embedding of engineers in existing teams, which facilitated timely feature releases. Areas for improvement were minimal, suggesting high client satisfaction.
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Industry Experience

Vention has garnered positive feedback across various industries, predominantly in Information Technology, Consumer Products & Services, Financial Services, and Education. Clients praise their responsive account management, quality of engineering talent, and ability to integrate seamlessly into existing teams. The overall sentiment is favorable, highlighting their adaptability and collaborative approach, especially in IT and financial service projects. Clients in education and consumer sectors particularly noted Vention’s effective communication and technical skills, making them a strong candidate for projects requiring deep technical expertise and innovative solutions.
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Education Business services Financial services Food & Beverage eCommerce Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Real estate Media Utilities Chemicals & Biotechnology Consumer Products Advertising & marketing Software Healthcare Logistics & Supply Chain Transportation Arts, entertainment & music Other Industry Consumer products & services IT Services Information technology

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View projects from:

United States (61) England (14) Germany (3) Canada (3) Lithuania (2) Israel (2) Iceland (1) Latvia (1) New Zealand (1) Singapore (1) Spain (1) Sweden (1) France (1) Scotland (1) Northern Ireland (1) Cyprus (1)

This provider is fluent in 2 languages:

English

German

This provider is available in 5 time zones:

Greenwich Mean Time (GMT)

Central Standard Time (CST)

Eastern Standard Time (EST)

Pacific Standard Time (PST)

Mountain Standard Time (MST)

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Wien, Austria

2 Gertrude-Fröhlich-Sandner-Straße
Wien, Austria 1100
2 - 5

+43 664 1410056

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Altasoft Software Solutions

4.5 1 review

$5,000+

$50 - $99 / hr

10 - 49

Wien, Austria

Services provided

10% Blockchain

20% IT Staff Augmentation

20% Mobile App Development +4 services

20% Web Development

10% AR/VR Development

10% Custom Software Development

10% E-Commerce Development

Altasoft Software Solutions is an IT outsourcing company that specializes in bridging personnel gaps with skilled software developers, primarily in backend and frontend development. With 100% positive feedback, clients commend their ability to adapt and deliver project needs while providing mid to senior-level developers. Their connections in hard-to-reach countries and expertise in various technologies are highlighted across reviews.

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Industry Experience

Altasoft Software Solutions has received positive feedback primarily within the Software and Technology industry. Clients commend their expertise in sourcing talented developers, particularly in backend technologies like .NET Core and microservices. Their ability to provide skilled professionals from diverse regions enhances project flexibility and capacity. Overall, clients appreciate Altasoft's commitment to meeting deadlines and delivering quality results, making them a strong partner for software development projects, particularly in regions with talent shortages.
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Software

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Average Project Cost Breakdown

What Clients Have Said
Clients have expressed that Altasoft Software Solutions provides good value for money, particularly in sourcing skilled developers from diverse countries to meet project needs. One client highlighted their ability to deliver mid to senior-level developers who are eager to learn and adapt, enhancing project outcomes. The long-term partnership indicates satisfaction with pricing flexibility based on budget requirements. Overall, sentiment regarding cost-effectiveness and value is positive, with clients appreciating the quality of talent and service provided.
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Wien, Austria

Johann Strauss Gasse 3-15
Wien, Austria 1040
2 - 5

+436766112310

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THE SWARM DEVELOPMENT GmbH

Not yet reviewed

$5,000+

$100 - $149 / hr

10 - 49

Wien, Austria

Services provided

20% Blockchain

20% Custom Software Development

15% E-Commerce Development +7 services

10% AR/VR Development

10% Web Design

5% Cybersecurity

5% IT Strategy Consulting

5% Mobile App Development

5% UX/UI Design

5% Web Development

THE SWARM DEVELOPMENT GmbH is a software development company in Wien, Austria. They specialize in Custom Software Development and Blockchain.
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Cryptix AG

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Wien, Austria

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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Wien, Austria

1 Opernring
Wien, Austria 1010
16 - 20

+43 1 2089895

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CryptIT GmbH

Not yet reviewed

$5,000+

$150 - $199 / hr

10 - 49

Wien, Austria

Services provided

20% Blockchain

35% Enterprise App Modernization

20% AI Agents +2 services

15% Custom Software Development

10% AI Consulting

CryptIT GmbH, an Enterprise App Modernization company, is headquartered in Wien, Austria. They provide Enterprise App Modernization and Blockchain and were founded in 2021.
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OG Technologies EU

Not yet reviewed

$25,000+

$50 - $99 / hr

2 - 9

Wien, Austria

Services provided

10% Blockchain

12% IT Strategy Consulting

10% AI Development +7 services

10% API Development

10% Cloud Consulting & SI

10% Custom Software Development

10% Cybersecurity

10% Enterprise App Modernization

10% Web Development

8% IT Managed Services

OG Technologies EU is an IT strategy consulting company. The Wien, Austria-based agency was founded in 2021. Their services include IT strategy consulting and cloud consulting & SI.
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$499 Embark on your Web3 journey $999 Elevate your business with Web3 innovation $1,499 Unleash the full potential of your enterprise.

I will ignite your business with Web3 innovation
Welcome to OG Technologies EU, your gateway to cutting-edge technology solutions! As the founder, Olvis E. Gil Ríos, I bring a wealth of expertise to elevate your digital experience. Our gig specializes in Web3 development, smart contracts, blockchain solutions, DApp development, and decentralized applications (DApps).
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Alpine Blockchain

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Brunn am Gebirge, Austria

Services provided

30% Blockchain

30% Blockchain Marketing

20% Application Testing +1 service

20% Cybersecurity

Alpine Blockchain is a Blockchain company. The Brunn am Gebirge, Austria-based team provides Blockchain and Blockchain Marketing.
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OpenValue

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Wien, Austria

Services provided

20% Blockchain

60% Custom Software Development

20% AI Development

OpenValue is a software development firm. The Wien, Austria-based team offers Custom Software Development and Artificial Intelligence.
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Parsition GmbH

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Wien, Austria

Services provided

10% Blockchain

30% Mobile App Development

20% Web Development +8 services

5% Custom Software Development

5% Digital Strategy

5% E-Commerce Development

5% Graphic Design

5% Social Media Marketing

5% UX/UI Design

5% Video Production

5% Web Design

Parsition GmbH is a mobile application development company. Their small team is headquartered in Wien, Austria. Their team specializes in Mobile App Development and Web Development.
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A.R. Merkeleon GmbH

Not yet reviewed

$5,000+

$50 - $99 / hr

50 - 249

Pöttelsdorf, Austria

Services provided

30% Blockchain

20% Custom Software Development

20% E-Commerce Development +4 services

10% Other Application Development

10% Web Development

5% IT Managed Services

5% Mobile App Development

A.R. Merkeleon GmbH, a Blockchain company, provide Blockchain and Custom Software Development. They were launched in 2009.
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Ability to deliver

Focus

Proven

Market Leaders

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Niche

Clutch Leaders Matrix

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

1 Vention

2 Altasoft Software Solutions

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 Vienna Blockchain Development Companies

Vention

$50,000+

$50 - $99 / hr

1,000 - 9,999

Wien, Austria

Ability to deliver

39.8/40.0

20/20 Reviews

10/10 Clients & Experience

9.8/10 Market Presence

Service focus

10% Blockchain

90% Other

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Altasoft Software Solutions

$5,000+

$50 - $99 / hr

10 - 49

Wien, Austria

Ability to deliver

20.8/40.0

14.6/20 Reviews

1.7/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% Blockchain

90% Other

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THE SWARM DEVELOPMENT GmbH

$5,000+

$100 - $149 / hr

10 - 49

Wien, Austria

Ability to deliver

10.5/40.0

0/20 Reviews

5.9/10 Clients & Experience

4.6/10 Market Presence

Service focus

20% Blockchain

80% Other

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Cryptix AG

Undisclosed

Undisclosed

10 - 49

Wien, Austria

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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CryptIT GmbH

$5,000+

$150 - $199 / hr

10 - 49

Wien, Austria

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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OG Technologies EU

$25,000+

$50 - $99 / hr

2 - 9

Wien, Austria

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% Blockchain

90% Other

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Alpine Blockchain

Undisclosed

Undisclosed

2 - 9

Brunn am Gebirge, Austria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

30% Blockchain

70% Other

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OpenValue

Undisclosed

Undisclosed

50 - 249

Wien, Austria

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% Blockchain

80% Other

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Parsition GmbH

Undisclosed

Undisclosed

10 - 49

Wien, Austria

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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A.R. Merkeleon GmbH

$5,000+

$50 - $99 / hr

50 - 249

Pöttelsdorf, Austria

Ability to deliver

6.5/40.0

0/20 Reviews

0/10 Clients & Experience

6.5/10 Market Presence

Service focus

30% Blockchain

70% Other

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Specialties

Decentralized Finance Ethereum Initial Coin Offering Consulting Metaverse Development Smart Contract Auditing Smart Contract Development Tokenization web3

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Top Blockchain Companies & Developers in Vienna

List of the Top Vienna Blockchain Development Companies

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Nextrope is very responsive

Reviews mention Detail-oriented

Smart Contract Development for Metaverse

Blockchain Development for FinTech Company

Custom Software Dev for Crypto Development Company

RedDuck is very responsive

Reviewed 3 times in the past 6 months

Industry Experience

Select Industry to see insights

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

I will ignite your business with Web3 innovation

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List of the Top 2 Vienna Blockchain Development Companies

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Related Services

Specialties