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Home Blockchain South Africa Johannesburg

Top Blockchain Companies & Developers in Johannesburg

Ratings Updated: September 27, 2026
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9 Companies

Country: South Africa
City: Johannesburg

List of the Top Johannesburg Blockchain Development Companies

  • Featured

    What are Featured Providers?

    Nextrope Logotype

    Nextrope

    5.0 18 reviews
    Premier Verified
    $25,000+
    $50 - $99 / hr
    10 - 49
    Serves Johannesburg, South Africa

    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 Efficient

    Nextrope has consistently received positive feedback regarding their efficiency in project execution. Clients noted their 'great efficiency and speed' in conducting audits and delivering services without delays. For instance, one client praised the team for their 'fantastic ability to recognize our needs,' which facilitated a smooth workflow. Another emphasized the 'attention to detail' coupled with rapid delivery of materials, highlighting Nextrope's commitment to timely and effective project management.
    • Cybersecurity Audit for Blockchain-Based Company
      5.0 Dec 8, 2021

      Nextrope demonstrated great efficiency and speed in carrying out the audit. There were no unnecessary delays.

      Read Full Review
    • Digital Marketing for Blockchain Conference
      4.5 Apr 1, 2020

      Attention to detail in delivering materials, with the simultaneous efficiency in doing so very quickly.

      Read Full Review
    • Research & Design for Blockchain Music Streaming Service
      5.0 Apr 1, 2020

      Nextrope works extremely efficiently and pragmatically. The Nextrope team understood our hosting needs perfectly and recognized the importance of the smart contracts.

      Read Full Review
    Read All Reviews
    1 of 1 Blockchain reviews are 5 stars
    $10,000 – $49,000 avg. project cost

    Blockchain PROJECT HIGHLIGHT

    Blockchain Platform Dev for Real Estate Investment Platform

    5.0 — Nextrope developed a blockchain-based real estate tokenization platform for a real estate investment platform. The team designed the system's core architecture and developed the front- and backend. Read more
    Read 1 Review

    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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    View projects from:

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

    RedDuck

    5.0 16 reviews
    Verified Clutch Guarantee
    $5,000+
    $50 - $99 / hr
    10 - 49
    Serves Johannesburg, South Africa

    Services provided

    90% Blockchain
    10% Web Development

    RedDuck is a Blockchain Development firm specializing in Smart Contract Development, Distributed Ledger Technology, and Decentralized Application Development. They consistently receive positive feedback for their technical proficiency, with approximately 95% of reviewers commending their project management and responsiveness. Clients particularly appreciate their strategic vision and ability to deliver comprehensive blockchain solutions that align with business objectives.

    See all 16 projects

    Reviews mention Great project management

    RedDuck has received commendations for its excellent project management capabilities. Clients highlighted their ability to provide regular progress updates, adhere to timelines, and maintain clear communication throughout the project. One client noted that RedDuck was highly responsive to feedback and changes, demonstrating professionalism and adaptability. Another client praised their quick responses and openness to suggestions, further emphasizing their strong project management skills, which contributed significantly to the successful outcomes of their projects.
    • Cryptocurrency & Blockchain Dev for Asset Tokenization Co
      5.0 Apr 21, 2025

      Always quick response to questions, very open to changes and suggestions. Excellent project management.

      Read Full Review
    • Blockchain Development for FinTech Company
      5.0 Apr 23, 2025

      RedDuck demonstrated excellent project management throughout the engagement. They provided regular progress updates, stuck closely to the development timeline, and were transparent about any adjustments. Communication was clear and responsive — our feedback was always taken into account, and changes were implemented quickly.

      Read Full Review
    Read All Reviews
    3 of 3 reviews are 5 stars
    2 new reviews for Blockchain services
    $50,000 – $199,999 avg. project cost

    Reviewed 3 times in the past 6 months

    RedDuck has received positive feedback over the past six months, with clients highlighting their effective communication and timely project delivery. One client praised their ability to meet deadlines while being attentive to needs, and another noted RedDuck's proactive problem-solving approach. Additionally, a client emphasized the successful deployment of complex blockchain solutions, showcasing RedDuck's technical expertise. Overall, clients express satisfaction with RedDuck's performance and the quality of their deliverables, indicating a strong fit for collaborative projects.
    Read 3 Recent Reviews
    7 of 7 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
    Read 7 Reviews
    $6,400 Allocation of an ethereum smart-contract developer $9,600 Allocation of a senior ethereum developer RWA/DeFi $12,800 Allocation of a tech-lead developer RWA/DeFi/Web3

    Software Development (Ethereum/EVM)

    Development of Blockchain/Web3 software focusing on smart-contracts / DeFi / RWA on Ethereum network.
    View Packages
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    DESH.Group Logotype

    DESH.Group

    5.0 6 reviews
    $5,000+
    $25 - $49 / hr
    10 - 49
    Serves Johannesburg, South Africa

    Services provided

    40% Blockchain
    25% AI Development
    25% UX/UI Design +1 service
    10% Blockchain Marketing

    DESH Team specializes in brand identity, UX/UI design, and no-code website development, including 3D elements for diverse industries such as e-commerce and cryptocurrency. Overall feedback highlights their timely delivery, excellent communication, and client-centric approach, with clients appreciating their professional insights and the ability to improve user experiences. Some suggestions for improvement include adding a marketing manager for broader services.

    See all 6 projects

    Industry Experience

    DESH.Group has demonstrated expertise in the telecommunications industry, particularly in UI/UX redesign and frontend development. Clients have praised their ability to enhance user experience through improved navigation and simplified workflows, resulting in increased customer satisfaction and reduced support requests. Overall sentiment is positive, highlighting DESH.Group's proactive approach, effective communication, and timely project delivery. Their strengths in creating scalable, intuitive digital solutions make them a suitable partner for projects within the telecommunications sector.

    Read All Reviews

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have expressed that DESH.Group offers excellent value for money, with one review highlighting a successful collaboration where the company's pricing fit the client's budget and provided good value for the cost. Overall sentiment indicates satisfaction with the cost-effectiveness of their services, as evidenced by timely project delivery and positive outcomes, including a notable improvement in customer satisfaction post-redesign.
    Read All Reviews
    $5,000 Web3 startups building an MVP $12,000 Companies launching Web3 products $25,000 Businesses building complex Web3 ecosystems

    Blockchain MVP Development

    End-to-end blockchain development for startups and businesses - from product discovery and architecture to smart contracts, dApps, wallet integrations and production launch. Ideal for teams building secure, scalable Web3 products on Ethereum and other EVM-compatible networks.
    View Packages
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  • KB Consulting Logotype

    5.0 1 review
    Undisclosed
    < $25 / hr
    50 - 249
    Sandton, South Africa

    Services provided

    12% Blockchain
    16% Custom Software Development
    12% Application Testing +5 services
    12% E-Commerce Development
    12% Enterprise App Modernization
    12% Mobile App Development
    12% Other Application Development
    12% Web Development

    KB Consulting is a bespoke web application development company specializing in advanced systems with Business Intelligence reporting. They received 100% positive feedback for their efficient project management and remarkable turnaround time, with clients highlighting cost-effectiveness as a significant benefit. All reviewers indicated satisfaction with no areas for improvement mentioned.

    See all 1 projects

    Industry Experience

    KB Consulting has received positive feedback primarily within the Advertising & Marketing industry. Clients have highlighted their expertise in bespoke web application development and Business Intelligence reporting integration. Their strengths include effective project management with a focus on timely delivery and cost efficiency. Overall sentiment reflects satisfaction with their collaborative approach and the successful implementation of systems that cater to diverse user bases, making them a strong fit for companies seeking innovative tech solutions in this sector.

    Read All Reviews

    Select Industry to see insights

    Advertising & marketing

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have noted that KB Consulting offers significant value for money, with one Operations Manager highlighting the 'huge benefit' of their cost structure. The company's efficient turnaround time further enhances their appeal, making them a favorable choice for bespoke development projects. Overall, the sentiment regarding pricing and value is positive, indicating that clients feel they receive quality service relative to the financial investment.
    Read All Reviews

    Review Rating from Clients

    5.0/5.0

    Quality

    5.0

    Schedule

    5.0

    Cost

    5.0

    Willing to Refer

    5.0

    Local clients describe KB Consulting as highly responsive and affordable, successfully launching a complex knowledge base system used by diverse users, with no noted areas for improvement.
    Read Local Reviews
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  • Appstrax Technology Logotype

    5.0 2 reviews
    $10,000+
    $50 - $99 / hr
    10 - 49
    Sandton, South Africa

    Services provided

    10% Blockchain
    30% Custom Software Development
    20% Mobile App Development +3 services
    20% Web Development
    10% Enterprise App Modernization
    10% IoT Development

    Appstrax Technology is a versatile software development company specializing in web and mobile app solutions. The company is praised for its professionalism, flexibility, and comprehensive project management, with 100% of reviewers highlighting their effective communication and seamless integration of client vision into deliverables. Some areas for improvement include clearer timeline expectations and refining junior design capabilities.

    See all 2 projects

    Reviews mention High-quality work

    Appstrax Technology has received positive feedback for delivering high-quality work, particularly in the development of a mobile app for a startup. Clients highlighted their solid backend performance and flexibility in accommodating changes without altering contracts. One client noted the successful deployment of the app, which surpassed expectations by allowing for real-time testing with potential users. Overall, the sentiment indicates satisfaction with the team's expertise and commitment to client needs.
    • Mobile App Dev for Bar Ordering App
      5.0 Apr 20, 2020

      One of the things that mattered the most to me was how the backend looked. Because the product would be handling payment transactions, we couldn’t really afford to have bugs. Appstrax is very solid on the backend, and I know that Mikael worked on it personally. The deployment was really smooth on both app stores.

      Read Full Review
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    Industry Experience

    Appstrax Technology has garnered positive feedback across diverse industries, notably in Education and IT Services. In Education, clients highlighted their professionalism and ability to create impactful digital platforms, enhancing engagement and operational efficiency. In IT Services, their expertise in mobile app development, particularly for startups, was praised for flexibility and backend reliability, making them suitable for tech-driven projects. Overall, Appstrax is well-regarded for understanding client visions and delivering tailored solutions, making them a strong candidate for educational and technology-focused initiatives.

    Read All Reviews

    Select Industry to see insights

    Education IT Services

    Average Project Cost Breakdown

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

    What Clients Have Said

    Appstrax Technology has received positive feedback regarding their cost-effectiveness and overall value. Clients noted that the investment, such as the approximately $30,000 spent for a mobile app, yielded satisfactory results and met project goals. One client emphasized the flexibility and professionalism of the team, stating that they delivered a product that exceeded expectations. However, there were mentions of needing clearer timelines at the outset, indicating potential areas for improvement in communication regarding costs and project duration.
    Read All Reviews
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  • DIGITECH AFRICA LTD Logotype

    Not yet reviewed

    $10,000+
    $25 - $49 / hr
    10 - 49
    Sandton, South Africa

    Services provided

    10% Blockchain
    20% ERP Consulting and SI
    15% BI & Big Data Consulting & SI +4 services
    15% IT Strategy Consulting
    15% Mobile App Development
    15% Web Development
    10% AI Development

    Small ERP consulting and SI company DIGITECH AFRICA LTD, is located in Victoria, Seychelles and Abidjan, Côte d'Ivoire. Their services include ERP consulting and SI and BI & big data consulting &

    Read more

    Sandton, South Africa

    Michelangelo Towers, Sandton , JHB, Gauteng
    Sandton, South Africa 2146

    2 - 5

    See All Locations (3)
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  • Atlegang Digital Assets Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    2 - 9
    Midrand, South Africa

    Services provided

    40% Blockchain
    30% Blockchain Marketing
    30% Digital Asset Management

    Atlegang Digital Assets is a Blockchain company established in 2020. The team provides Blockchain and Blockchain Marketing.

    Read more
    View Profile
  • DevExec Logotype

    Not yet reviewed

    $1,000+
    $100 - $149 / hr
    2 - 9
    Benoni, South Africa

    Services provided

    10% Blockchain
    15% BI & Big Data Consulting & SI
    15% Cloud Consulting & SI +6 services
    10% AI Development
    10% Custom Software Development
    10% Cybersecurity
    10% IoT Development
    10% UX/UI Design
    10% Web Design

    DevExec is a big data analytics company in Benoni, South Africa. They focus on BI & big data consulting & SI and cloud consulting & SI and were established in 2004.

    Read more
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  • Mobiloitte Logotype

    4.5 20 reviews
    $1,000+
    $25 - $49 / hr
    250 - 999
    Centurion, South Africa

    Services provided

    10% Blockchain
    35% AI Development
    15% Mobile App Development +4 services
    10% DevOps Managed Services
    10% IoT Development
    10% Search Engine Optimization
    10% Web Development

    Mobiloitte is a technology company specializing in Blockchain Development, AI integration, and mobile app creation. Across reviews, 100% of clients expressed satisfaction, highlighting their innovative Blockchain Solutions and excellent project management. Approximately 40% noted the need for improved initial communication, but Mobiloitte's tailored approach and timely delivery were consistently praised.

    See all 20 projects

    Reviews mention Communicative

    Clients have consistently praised Mobiloitte for their effective communication throughout project development. One client noted the Project Manager's, Arvind's, proactive approach and clear updates, which significantly contributed to the project's success. Feedback highlighted responsiveness to feature requests and concerns, ensuring timely delivery of milestones. While there were suggestions for improving initial time estimations, the overall sentiment reflects a strong appreciation for Mobiloitte's commitment to maintaining open lines of communication and addressing client needs promptly.
    • Custom Mobile App Dev & Design for Financial Services Firm
      5.0 Feb 28, 2025

      Arvind maintained clear and consistent communication, regularly updating us on progress and promptly addressing any concerns or additional feature requests. His responsiveness and problem-solving skills helped streamline the development process, ensuring that any roadblocks were resolved quickly without affecting the overall timeline. Another unique aspect was their responsiveness and adaptability. Whether it was last-minute feature requests, security enhancements, or performance optimizations, they handled everything efficiently without compromising on deadlines.

      Read Full Review
    Read All Reviews

    View projects from:

    India (3) Canada (1) Ireland (1) United States (1)
    $4,000 Startup Small Business-Starter $100,000 Medium Size Business- Growth $150,000 Enterprises Large Business -Enterprise

    Custom Blockchain Development Services

    Mobiloitte provides a wide range of blockchain solutions, including AI-powered blockchain, public and private blockchain development, hybrid blockchain solutions, decentralized finance (DeFi) platforms, NFT marketplaces, crypto exchange development, and decentralized applications (DApps). We also specialize in tokenization, smart contract audit.
    View Packages

    Centurion, South Africa

    8 Ashwood Drive, Centurion 0185, South Africa
    Centurion, South Africa 0185

    76 - 100

    +1 7816706589

    See All Locations (7)
    View Profile
  • Exelia Technologies Logotype

    Not yet reviewed

    $5,000+
    $50 - $99 / hr
    10 - 49
    Johannesburg, South Africa

    Services provided

    10% Blockchain
    20% AI Development
    20% E-Commerce Development +4 services
    20% Mobile App Development
    16% Application Testing
    10% Web Design
    4% IoT Development

    Exelia Technologies is a small artificial intelligence firm. They provide Artificial Intelligence and E-Commerce Development and were launched in 2013.

    Read more

    Johannesburg, South Africa

    3 Oakmont Close, The Glades
    Johannesburg, South Africa 2000

    1

    0027(0)82907629

    See All Locations (2)
    View Profile
  • InfyStrat Software Services Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    50 - 249
    Johannesburg, South Africa

    Services provided

    10% Blockchain
    20% AI Development
    20% IoT Development +4 services
    20% Robotics Process Automation
    10% BI & Big Data Consulting & SI
    10% Cybersecurity
    10% DevOps Managed Services

    InfyStrat Software Services is an IoT development company. The Santa Clarita, California-based agency was established in 2015. Their services include IoT development and Artificial Intelligence.

    Read more

    Johannesburg, South Africa

    14, Eglin Road, Sunninghill, Sandton
    Johannesburg, South Africa 2191

    31 - 40

    See All Locations (2)
    View Profile
  • Mothore Foundry Logotype

    Not yet reviewed

    Undisclosed
    Undisclosed
    10 - 49
    Johannesburg, South Africa

    Services provided

    100% Blockchain

    Mothore Foundry is a Blockchain company in Denver, Colorado and Johannesburg, South Africa. They provide Blockchain.

    Read more

    Johannesburg, South Africa

    16 Main RdMelville,
    Johannesburg, South Africa 2109

    +1 (720) 778-1089

    See All Locations (2)
    View Profile

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1 KB Consulting
2 Appstrax Technology

List of the Top 2 Johannesburg Blockchain Development Companies

  1. KB Consulting Logotype

    KB Consulting

    Undisclosed
    < $25 / hr
    50 - 249
    Sandton, South Africa

    Ability to deliver

    22.1/40.0
    16.2/20 Reviews
    1.9/10 Clients & Experience
    4/10 Market Presence

    Service focus

    12% Blockchain
    88% Other
    View Profile Visit Website
  2. Appstrax Technology Logotype

    Appstrax Technology

    $10,000+
    $50 - $99 / hr
    10 - 49
    Sandton, South Africa

    Ability to deliver

    21.7/40.0
    16.2/20 Reviews
    0.6/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  3. DIGITECH AFRICA LTD Logotype

    DIGITECH AFRICA LTD

    $10,000+
    $25 - $49 / hr
    10 - 49
    Sandton, South Africa

    Ability to deliver

    5.9/40.0
    0/20 Reviews
    0.6/10 Clients & Experience
    5.3/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  4. Atlegang Digital Assets Logotype

    Atlegang Digital Assets

    Undisclosed
    Undisclosed
    2 - 9
    Midrand, South Africa

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    40% Blockchain
    60% Other
    View Profile Visit Website
  5. DevExec Logotype

    DevExec

    $1,000+
    $100 - $149 / hr
    2 - 9
    Benoni, South Africa

    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
  6. Mobiloitte Logotype

    Mobiloitte

    $1,000+
    $25 - $49 / hr
    250 - 999
    Centurion, South Africa

    Ability to deliver

    25.7/40.0
    13/20 Reviews
    6.9/10 Clients & Experience
    5.8/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  7. Exelia Technologies Logotype

    Exelia Technologies

    $5,000+
    $50 - $99 / hr
    10 - 49
    Johannesburg, South Africa

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  8. InfyStrat Software Services Logotype

    InfyStrat Software Services

    Undisclosed
    Undisclosed
    50 - 249
    Johannesburg, South Africa

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    10% Blockchain
    90% Other
    View Profile Visit Website
  9. Mothore Foundry Logotype

    Mothore Foundry

    Undisclosed
    Undisclosed
    10 - 49
    Johannesburg, South Africa

    Ability to deliver

    0/40.0
    0/20 Reviews
    0/10 Clients & Experience
    0/10 Market Presence

    Service focus

    100% Blockchain
    View Profile Visit Website

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