Top Blockchain Companies & Developers in Vienna

Ratings Updated: June 2, 2026

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2 Leaders 8 Contenders

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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1 of 1 reviews is 5 stars

1 new review for Blockchain services

$10,000 – $49,000 avg. project cost

Reviewed 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.
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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
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.
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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 13 reviews

$5,000+

$50 - $99 / hr

10 - 49

Serves Vienna, Austria

Services provided

100% Blockchain

RedDuck 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.

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5 of 5 Blockchain reviews are 5 stars

2 new reviews for Blockchain in past 6 months

$50,000 – $199,999 avg. project cost

Blockchain 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 more
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Average Project Cost Breakdown

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

What Clients Have Said
Clients consistently praised RedDuck for offering excellent value for money and fitting within their budgetary constraints. One client noted their 'good value for cost' and another highlighted that their pricing 'fit our budget.' Overall sentiment reflects satisfaction with the company's pricing relative to the quality of services provided, with multiple reviews emphasizing timely delivery and effective project management as key aspects of their positive experience.
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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) 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 software development company specializing in providing engineering and staff augmentation services. Reviews emphasize their strong project management, responsiveness, and high-quality talent, with over 80% highlighting their reliable communication and partnership approach. Clients appreciate their ability to integrate seamlessly with in-house teams, adding flexibility and expertise across various technological domains.

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Reviews mention Passionate about their work
Clients consistently highlight iTechArt Group's passion for their work, noting that their developers often go above and beyond, working extra hours to ensure project success. One client remarked that iTechArt’s team is not merely completing tasks but actively building a product alongside them. Another emphasized the company's ability to attract high-quality engineers who are genuinely interested in engaging with startup projects. Overall, the sentiment reflects strong appreciation for the team's dedication and commitment to delivering high-quality results.

Web & Software Development for Online Real Estate Portal

5.0 Dec 13, 2021

Compared to other companies I’ve worked with, iTechArt Group’s developers are more experienced and passionate about their work. There are a lot of teammates who make the extra effort and work past contracted hours to deliver for us. It makes our entire partnership work smoothly — iTechArt Group isn’t just there to complete a task, they’re building a product with us.
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App Dev for Security System

5.0 May 10, 2017

In terms of passion and what their people are really interested in, iTechArt does a good job of making assignments. They work a lot with startups, which is a more interesting field than working for a bank, for example. They can attract a good level of high-quality engineers, who want to get involved.
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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 for Vention reflect a strong overall sentiment, highlighting their responsive account management and effective collaboration. Clients appreciated the seamless integration of Vention's engineers into their teams, which fostered a sense of partnership. Specific feedback noted the quick ramp-up of productivity and timely delivery of features. A client praised the proactive support from their account manager, while another emphasized the strong team spirit and commitment from Vention's staff. Minor areas for improvement were mentioned but did not significantly detract from the positive experiences.
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Average Project Cost Breakdown

$50,000 to $199,999 (19) $200,000 to $999,999 (17) $10,000 to $49,000 (11) $1,000,000 to $9,999,999 (7) $10,000,000 + (1)

What Clients Have Said
Client feedback regarding the company's overall cost and value for money is predominantly positive. Clients frequently highlight Vention's competitive pricing and alignment with budgetary constraints, with comments like 'pricing fit our budget' and 'good value for cost.' A client noted that Vention's services resulted in a 50% reduction in Salesforce license costs, indicating strong value. Overall, clients appreciate the quality of work delivered relative to the costs incurred, often stating that the investment has yielded significant returns.
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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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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 specializing in providing skilled software developers from various countries to meet specific project needs. They are highly praised for their adept professionals and ability to adapt to new technologies, with clients expressing over 90% positive feedback. Altasoft is noted for their successful track record in meeting deadlines and delivering high-quality work in complex projects.

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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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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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Top Blockchain Companies & Developers in Vienna

List of the Top Vienna Blockchain Development Companies

Reviewed 1 time in the past 6 months

Average Project Cost Breakdown

What Clients Have Said

Nextrope is very responsive

Blockchain Development for FinTech Company

Average Project Cost Breakdown

What Clients Have Said

RedDuck is very responsive

Reviews mention Passionate about their work

Web & Software Development for Online Real Estate Portal

App Dev for Security System

Reviewed 3 times in the past 6 months

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

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List of the Top 2 Vienna Blockchain Development Companies

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