Top Blockchain Companies & Developers in Vienna

Ratings Updated: January 13, 2026

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Featured

What are Featured Providers?
Vention

4.9 98 reviews

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Premier Verified

$25,000+

$50 - $99 / hr

1,000 - 9,999

Serves Vienna, Austria

Services provided

10% Blockchain

30% Custom Software Development

10% AI Agents +5 services

10% AI Development

10% AR/VR Development

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

Vention is a versatile software development company specializing in AI, software development, and staff augmentation. With a consistent record of delivering projects on time and high-quality work, Vention has received overwhelmingly positive feedback from clients (approximately 100% satisfaction), who praise their talented engineers, effective collaboration, and impressive project management. They are noted for their flexibility, responsiveness, and alignment with client needs.

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0 of 2 reviews are 5 stars

Unknown avg. project cost

Reviewed 2 times in the past 6 months
In the past six months, client feedback for Vention has been overwhelmingly positive, highlighting their high-quality engineering talent and responsive account management. One client noted that Vention's engineers consistently met sprint goals, while another praised their timely delivery and effective communication. Both clients, referred through trusted sources, reported no areas for improvement, indicating strong satisfaction with Vention's services and their ability to quickly meet project demands.
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Industry Experience

Vention has demonstrated expertise across diverse industries, including Fintech, IT, Education, Marketing, and Healthcare. In Fintech, they excel in software development and team augmentation, receiving praise for responsiveness and timely deliveries. In IT, clients commend their problem-solving skills and technical proficiency, while in Education, their collaborative approach has improved project outcomes. Overall sentiment is positive, with a consistent emphasis on quality, flexibility, and effective communication across all sectors.
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Advertising & marketing Education Business services Financial services Food & Beverage Software eCommerce Healthcare Logistics & Supply Chain Hospitality & leisure Consulting Social Networking Energy & natural resources Wellness & Fitness Transportation IT Services Real estate Media Arts, entertainment & music Utilities Chemicals & Biotechnology Consumer Products Information technology Other Industry

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Average Project Cost Breakdown

$50,000 to $199,999 (18) $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
Clients consistently report that Vention offers excellent value for money, with pricing fitting within their budgets while delivering high-quality results. For instance, one client highlighted that Vention's pricing was a significant factor in their decision to partner with the company, while another noted a 50% reduction in Salesforce license costs due to Vention's optimizations. Overall, feedback indicates strong satisfaction with Vention’s cost-effectiveness and the quality of service provided.
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View projects from:

United States (61) England (13) Canada (3) Germany (2) Lithuania (2) Israel (2) Latvia (1) Iceland (1) New Zealand (1) Singapore (1) Spain (1) Sweden (1) France (1) Scotland (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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Innowise

4.9 72 reviews
Premier Verified

$10,000+

$50 - $99 / hr

1,000 - 9,999

Serves Vienna, Austria

Services provided

10% Blockchain

10% AI Development

10% AR/VR Development +7 services

10% Cloud Consulting & SI

10% Custom Software Development

10% E-Commerce Development

10% IT Staff Augmentation

10% Mobile App Development

10% Robotics Process Automation

10% Web Development

Innowise is a Blockchain Development company noted for its expertise in Blockchain Technology, Smart Contract Development, and Decentralized System Development. Across their reviews, 100% of clients highlight their professionalism, responsiveness, and ability to meet deadlines. Additionally, 80% of reviewers commend their strategic consulting, further emphasizing their depth of expertise and commitment to delivering high-quality blockchain solutions.

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Reviews mention Communicative
The sentiment regarding Innowise Group's communication is overwhelmingly positive. Clients consistently praise their responsiveness and proactive engagement. For instance, one client noted, "Innowise delivers on time and on budget, and they communicate well with me," while another highlighted, "Their project management style was highly organized and professional, with a focus on delivering results." Additionally, clients appreciated the ease of communication, with one stating, "Communication was easy and straightforward." Overall, Innowise Group is recognized for its effective and clear communication practices.

DevOps Services for Real Estate-Oriented AI-Driven Platform

5.0 Aug 19, 2024

Innowise delivers on time and on budget, and they communicate well with me. We generally communicate via Google Chat and emails. We also have periodic video calls via Google Meet or Zoom.
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Web3 Interface & Solidity Contracts Dev for Blockchain Co

5.0 Jan 23, 2024

Project management was very responsive and communicative. We had on average several calls per week, and more during critical development phases. Industry standard project management methods were used and they were very easy to interact with.
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Mobile App Dev for Construction Company

5.0 Oct 31, 2023

easy communication and agreeing on specifications and requirements. No. We would like to continue working with them.
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Mobile Application Development for Gaming Company

5.0 Sep 25, 2023

Communication was easy and straightforward. If questions arose from their team for ours those were quickly handled via messaging app. If changes arose on our side (api) or on theirs, communication was easy and straightforward.
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IT Staff Augmentation for IT Services Company

5.0 Sep 8, 2023

Innowise Group’s team was always quick to respond and resolve any issues we faced. The communication was pleasant and efficient, if we asked for something we always quickly received the message that their team is working on the task.
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1 of 1 reviews is 5 stars

Unknown avg. project cost

Reviewed 1 time in the past 6 months
In the past six months, client feedback for Innowise has been overwhelmingly positive. A private school president noted their successful creation of a custom database that streamlined reporting processes, highlighting Innowise's strong project management and effective communication. The client appreciated the company’s ability to deliver on time and within budget, especially after transitioning from a previous firm that failed to meet expectations. Overall, clients commend Innowise for their professionalism and cost-effectiveness.
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Industry Experience

Innowise Group has demonstrated extensive expertise across various industries, including healthcare, information technology, financial services, and advertising & marketing. Clients praised their technical proficiency, project management skills, and ability to deliver solutions that enhance operational efficiency. Feedback reveals a consistent sentiment of satisfaction, particularly in healthcare and IT services, with notable improvements in workflow and compliance. Businesses in need of software development, data management, or digital transformation in these sectors would benefit significantly from engaging Innowise.
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Design Information technology Advertising & marketing Arts, entertainment & music Software Financial services Energy & natural resources Healthcare Construction Gaming Business services IT Services Consulting Other Industry Consumer Products Telecommunications Human Resources Wellness & Fitness Manufacturing Education

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Average Project Cost Breakdown

$10,000 to $49,000 (24) $50,000 to $199,999 (17) $200,000 to $999,999 (10) Less than $10,000 (1)

What Clients Have Said
Clients consistently praised Innowise Group for their competitive pricing and excellent value for money. Feedback highlighted that their services fit various budgets while delivering high-quality results, as noted by multiple clients who emphasized good cost-to-value ratios. For instance, a CEO mentioned that Innowise's pricing fit their budget and provided great value, while another client appreciated the fair pricing during their ongoing engagement. Overall, the sentiment towards Innowise's cost-effectiveness is overwhelmingly positive, suggesting a strong alignment between quality and affordability.
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S-PRO

4.9 46 reviews
Verified

$25,000+

$25 - $49 / hr

50 - 249

Serves Vienna, Austria

Services provided

10% Blockchain

35% Web Development

25% AI Development +4 services

15% Mobile App Development

10% Custom Software Development

3% AI Consulting

2% IT Strategy Consulting

S-PRO is a company specializing in Blockchain Development and custom software solutions. Reviews indicate a high level of satisfaction, with 100% of clients highlighting their professionalism and reliability. Clients appreciate S-PRO's flexibility and communication, though some suggest improvements in project management transparency. Overall, S-PRO's commitment to delivering quality and integrating with client teams is consistently praised.

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Reviews mention Honest
Clients consistently commend S-PRO for their honesty and transparency throughout the development process. One client highlighted their accommodating nature and the clarity of invoices, emphasizing that S-PRO provides detailed breakdowns of work completed. Another client noted S-PRO's willingness to learn new technologies without additional costs, demonstrating their commitment to client needs. Overall, the sentiment reflects a strong appreciation for S-PRO's integrity and reliability in managing projects.

Web Development for Mobile Application Company

5.0 Jul 6, 2018

I'd encourage potential clients to get in touch with S-PRO. They are accommodating and consistently honest across the board. When I have budget meetings with clients, it's helpful to have detailed invoices that show us the exact work that's been done.
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Web & Mobile App Dev for Healthcare Company

5.0 May 22, 2018

I’ve appreciated their honesty. We were their first client to ask for Vue.js, a technology they lacked the expertise for in-house. Even though it wasn’t featured in S-PRO’s scope, they agreed to have one of their resources learn it. They assigned him to us at a lower price, and he did a great job regardless.
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1 of 2 Blockchain reviews are 5 stars

$50,000 – $199,999 avg. project cost

Blockchain PROJECT HIGHLIGHT

Custom Software Dev for FinTech Company
5.0 — S-PRO has developed a web application for a fintech startup. The app is intended to do product marketing in the financial sector; they’ve built it based on a previous MVP. Read more
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Average Project Cost Breakdown

$50,000 to $199,999 (17) $10,000 to $49,000 (13) $200,000 to $999,999 (9) Less than $10,000 (3) $1,000,000 to $9,999,999 (1)

What Clients Have Said
S-PRO is frequently praised for offering good value for money, with clients noting their competitive pricing relative to the quality of service provided. For instance, one client highlighted that S-PRO delivered great results within budget constraints, while another remarked on their flexibility and responsiveness to project needs. Overall sentiment reflects satisfaction with the cost-effectiveness of their services, as multiple clients indicated that S-PRO's pricing was reasonable given the high caliber of their work.
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View projects from:

United States (9) Germany (5) England (5) Switzerland (3) Canada (3) Australia (3) France (2) Ireland (2) Norway (2) Ukraine (2) Latvia (1) Poland (1) Lithuania (1) Jordan (1)

This provider is fluent in 3 languages:

English

German

Ukrainian

This provider is available in 32 time zones:

Near East Time (NET)

Middle East Time (MET)

China Taiwan Time (CTT)

Brazil Eastern Time (BET)

Greenwich Mean Time (GMT)

India Standard Time (IST)

Japan Standard Time (JST)

Midway Islands Time (MIT)

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Vention

4.9 98 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

$25,000+

$50 - $99 / hr

1,000 - 9,999

Łódź, Poland

Services provided

10% Blockchain

30% Custom Software Development

10% AI Agents +5 services

10% AI Development

10% AR/VR Development

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

Vention is a versatile software development company specializing in AI, software development, and staff augmentation. With a consistent record of delivering projects on time and high-quality work, Vention has received overwhelmingly positive feedback from clients (approximately 100% satisfaction), who praise their talented engineers, effective collaboration, and impressive project management. They are noted for their flexibility, responsiveness, and alignment with client needs.

See all 98 projects
0 of 2 reviews are 5 stars

Unknown avg. project cost

Reviewed 2 times in the past 6 months
In the past six months, client feedback for Vention has been overwhelmingly positive, highlighting their high-quality engineering talent and responsive account management. One client noted that Vention's engineers consistently met sprint goals, while another praised their timely delivery and effective communication. Both clients, referred through trusted sources, reported no areas for improvement, indicating strong satisfaction with Vention's services and their ability to quickly meet project demands.
Read 2 Recent Reviews

Was this helpful?

Industry Experience

Vention has demonstrated expertise across diverse industries, including Fintech, IT, Education, Marketing, and Healthcare. In Fintech, they excel in software development and team augmentation, receiving praise for responsiveness and timely deliveries. In IT, clients commend their problem-solving skills and technical proficiency, while in Education, their collaborative approach has improved project outcomes. Overall sentiment is positive, with a consistent emphasis on quality, flexibility, and effective communication across all sectors.
Read All Reviews

Select Industry to see insights

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

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Average Project Cost Breakdown

$50,000 to $199,999 (18) $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
Clients consistently report that Vention offers excellent value for money, with pricing fitting within their budgets while delivering high-quality results. For instance, one client highlighted that Vention's pricing was a significant factor in their decision to partner with the company, while another noted a 50% reduction in Salesforce license costs due to Vention's optimizations. Overall, feedback indicates strong satisfaction with Vention’s cost-effectiveness and the quality of service provided.
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View projects from:

United States (61) England (13) Canada (3) Germany (2) Lithuania (2) Israel (2) Latvia (1) Iceland (1) New Zealand (1) Singapore (1) Spain (1) Sweden (1) France (1) Scotland (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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Featured

What are Featured Providers?
RedDuck

5.0 13 reviews
Verified

$10,000+

$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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Reviews mention Experienced
Clients express a highly positive sentiment regarding RedDuck's expertise and project management. One client highlighted their 'excellent project management' and 'quick response to questions,' noting the team's 'very good experience' and understanding of development needs. The ability to implement complex functionalities like multi-chain interoperability and integrated swaps was particularly praised, with overall satisfaction indicating RedDuck's strong fit for technical projects.

Smart Contract Development for Blockchain Company

5.0 May 17, 2023

Mark and his team delivered an impeccable experience and deliverable product in extremely timely manner. These guys were the best! Smart and efficient they brought great ideas to make our product even better! I highly recommend and will certainly be working with them again.
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Cryptocurrency & Blockchain Dev for Asset Tokenization Co

5.0 Apr 21, 2025

The extremely good understanding of our development wishes, as well as the very good experience of the team in all matters, stood out.
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Industry Experience

RedDuck demonstrates significant expertise in the Financial Services, Gaming, and Logistics industries, with strong feedback highlighting their proficiency in blockchain development, smart contracts, and project management. Clients praised their ability to deliver secure, efficient solutions tailored to complex requirements, particularly in DeFi and tokenization projects. Overall sentiment is highly positive, particularly within Financial Services, where they are recognized for their innovative approaches and strategic insights, making them a suitable partner for companies in these sectors.
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Financial services Other Industry Logistics & Supply Chain Gaming

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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.
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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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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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iteratec

Not yet reviewed

Undisclosed

Undisclosed

250 - 999

Wien, Austria

Services provided

15% Blockchain

25% Custom Software Development

15% AI Development +5 services

10% Cloud Consulting & SI

10% Cybersecurity

10% Mobile App Development

10% Web Development

5% IT Strategy Consulting

Iteratec is a München, Germany-based custom software development company. They provide Custom Software Development and Artificial Intelligence and were established in 1996.
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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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Top Blockchain Companies & Developers in Vienna

List of the Top Vienna Blockchain Development Companies

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 Communicative

DevOps Services for Real Estate-Oriented AI-Driven Platform

Web3 Interface & Solidity Contracts Dev for Blockchain Co

Mobile App Dev for Construction Company

Mobile Application Development for Gaming Company

IT Staff Augmentation for IT Services Company

Reviewed 1 time in the past 6 months

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Honest

Web Development for Mobile Application Company

Web & Mobile App Dev for Healthcare Company

Custom Software Dev for FinTech Company

Average Project Cost Breakdown

What Clients Have Said

Reviewed 2 times in the past 6 months

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Experienced

Smart Contract Development for Blockchain Company

Cryptocurrency & Blockchain Dev for Asset Tokenization Co

Industry Experience

Select Industry to see insights

Average Project Cost Breakdown

What Clients Have Said

RedDuck is very responsive

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List of the Top 2 Vienna Blockchain Development Companies

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