Top Blockchain Companies & Developers in Vienna

Ratings Updated: June 23, 2026

We verify reviews and evaluate companies so you can choose with confidence. We may earn a fee for some placements. Learn how Clutch ensures trust

All Companies Leaders Matrix Pricing Services Guide

2 Leaders 8 Contenders

Get Matched

10 Companies

Country: Austria

City: Vienna

List of the Top Vienna Blockchain Development Companies

Sponsored

Featured

What are Featured Providers?
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.

See all 18 projects
Reviews mention Exceeds expectations
Nextrope consistently exceeds client expectations, as evidenced by detailed feedback across multiple projects. One client lauded their thorough analysis and the delivery of a consultancy deck that matched the standards of top consulting firms, emphasizing the business applicability of their insights. Another client highlighted the seamless integration of front-end and back-end development, noting that the platform was delivered on time and met all requirements. Overall, clients praised Nextrope for their professionalism, communication, and high-quality deliverables.

Business Dev Consultancy for Construction Services Startup

5.0 May 27, 2022

Nextrope conducted a very thorough analysis of business cases and problems we brought to them and delivered a detailed workshop, together with MBB-style business consultancy deck. Everything was delivered on time and the final result exceeded our expectations.
Read Full Review

Tokenization Platform for IT Service Provider

5.0 Mar 17, 2022

In addition to a visually appealing interface, their front-end and back-end development were perfectly integrated. The platform was delivered on time and the final result exceeded our expectations.
Read Full Review

Digital marketing for 3D Printing Recycling Company

5.0 Sep 12, 2020

The scope of service offered to clients, both in terms of business and financial sides, as well as the actual web development. As so-far the only project in material sciences as a core of our activity that Nextrope supported, we had doubts that they would be able to give us a tailored solution. However, they proved to be very competent and delivered materials that met our expectations, and even exceeded some of them.
Read Full Review

Read All Reviews

Was this helpful?

Industry Experience

Nextrope has demonstrated expertise across several industries, notably in Real Estate, Business Services, Financial Services, and Information Technology. Clients commend their proficiency in blockchain solutions, project management, and adaptability. In Real Estate, they excelled in developing tokenization platforms, while in Business Services, they provided valuable consultancy. The team’s commitment to timely delivery and responsiveness has garnered positive sentiment across sectors, making them a strong fit for projects requiring innovative technology solutions.
Read All Reviews

Select Industry to see insights

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

Was this helpful?

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 commend Nextrope for delivering high-quality services at a competitive price point, often highlighting the company's strong value for money. One client noted their selection was due to 'good value for cost,' while another emphasized that their expectations were exceeded despite a reasonable budget. Overall, the sentiment reflects satisfaction with the cost-effectiveness and the comprehensive nature of Nextrope's offerings, with many clients expressing that the quality of work significantly justified the investment.
Read All Reviews

Was this helpful?

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.
Get in Touch

Was this helpful?
View Profile Visit Website
RedDuck

5.0 14 reviews

$5,000+

$50 - $99 / hr

10 - 49

Serves Vienna, Austria

Services provided

100% Blockchain

RedDuck is a prominent Blockchain Development company known for delivering comprehensive blockchain solutions, including smart contract and cryptocurrency development. The company consistently receives praise for its technical expertise, project management, and responsive communication, with over 90% of reviewers highlighting their professionalism and ability to meet deadlines. Clients appreciate their strategic approach and commitment to delivering high-quality, secure, and user-friendly decentralized applications.

See all 14 projects
Reviews mention Efficient
Clients consistently praise RedDuck for their efficiency and timely delivery of projects. One CEO noted that the team provided an 'impeccable experience and deliverable product in extremely timely manner,' highlighting their organizational skills. Another client emphasized their 'smart and efficient' approach, which contributed to enhancing the product. Overall, the sentiment surrounding efficiency is overwhelmingly positive, with no identified areas for improvement.

Smart Contract Development for Blockchain Company

5.0 May 17, 2023

Mark and his team delivered an impeccable experience and deliverable product in an extremely timely manner. These guys were the best! Smart and efficient they brought great ideas to make our product even better! How organized and efficient they are.
Read Full Review

Read All Reviews

Was this helpful?

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.
Read All Reviews

Was this helpful?

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

Was this helpful?

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)

View all time zones

Was this helpful?
View Profile Visit Website
Vention

4.9 101 reviews

Look for Verified Providers

Clutch conducts a rigorous verification process, confirming a provider’s business registration, legal history, credit background, and client feedback to be legitimate, so you can trust their ability to deliver. Learn More

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.

See all 101 projects
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 reflect a strong overall sentiment, highlighting their responsive account management and collaborative team culture. Clients noted the seamless integration of Vention's engineers into their projects, with one praising the proactive support of their account manager. Deliverables were consistently met on time, and the flexibility to adapt to changing needs was appreciated. A common theme emerged regarding the quality of partnership, with minimal areas for improvement mentioned, showcasing Vention's effectiveness in software development engagements.
Read 3 Recent Reviews

Was this helpful?

Industry Experience

Based on industry feedback, Vention demonstrates strong expertise across various sectors, including Information Technology, Financial Services, and Education. Clients commend Vention for their quick onboarding, quality engineering talent, and effective project management. Notably, in Information Technology, Vention excels in engineering capacity and responsiveness, while in Financial Services, they have contributed to impactful software solutions. The overall sentiment reflects satisfaction with Vention's adaptability and quality, making them a suitable partner for clients in these industries.
Read All Reviews

Select Industry to see insights

Education Business services Financial services Food & Beverage eCommerce Logistics & Supply Chain Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Transportation Real estate Media Utilities Chemicals & Biotechnology Consumer Products Healthcare Advertising & marketing Other Industry Consumer products & services Information technology Software Arts, entertainment & music IT Services

Was this helpful?
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)

Was this helpful?
Wien, Austria

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

+43 664 1410056

See All Locations (8)

Was this helpful?
View Profile Visit Website
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.

See all 1 projects

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.
Read All Reviews

Select Industry to see insights

Software

Was this helpful?

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.
Read All Reviews

Was this helpful?

Wien, Austria

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

+436766112310

See All Locations (2)

Was this helpful?

View Profile
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.
Read more

View Profile

Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.

Get My Matches

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.
Read more

Wien, Austria

1 Opernring
Wien, Austria 1010
16 - 20

+43 1 2089895

See All Locations (3)

Was this helpful?

View Profile
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.
Read more

View Profile
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.
Read more

$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).
View Packages

Was this helpful?

View Profile
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.
Read more

View Profile
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.
Read more

View Profile
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.
Read more

View Profile
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.
Read more

View Profile

Tell us what you need — we’ll match you with top agencies in minutes.

Get My Matches

Why Trust Clutch

At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.

Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.

Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.

We evaluate service providers using a structured methodology that combines:

In-depth client interviews and ratings
Comprehensive project details
Market presence
Portfolio examples and industry recognition

This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.

Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.

We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.

Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.

Ability to deliver

Focus

Proven

Market Leaders

Emerging

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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website
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

View Profile Visit Website

Similar Categories

Related Services

AR/VR in Vienna IoT in Vienna Ruby on Rails in Vienna Software Testing in Vienna Web Developers in Vienna Software Developers in Vienna Mobile App Development in Vienna eCommerce in Vienna Artificial Intelligence in Vienna

Specialties

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

Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.

Top Blockchain Companies & Developers in Vienna

List of the Top Vienna Blockchain Development Companies

Reviews mention Exceeds expectations

Business Dev Consultancy for Construction Services Startup

Tokenization Platform for IT Service Provider

Digital marketing for 3D Printing Recycling Company

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Nextrope is very responsive

Reviews mention Efficient

Smart Contract Development for Blockchain Company

Average Project Cost Breakdown

What Clients Have Said

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

Tell us what you need — we’ll match you with top agencies in minutes.

Why Trust Clutch

List of the Top 2 Vienna Blockchain Development Companies

Similar Categories

Related Services

Specialties