Top Blockchain Companies & Developers in London

Ratings Updated: September 1, 2026

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1 Leaders 6 Contenders

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7 Companies

Country: Canada

Province: Ontario

City: London

List of the Top London Blockchain Development Companies

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RedDuck

5.0 15 reviews

Verified

$5,000+

$50 - $99 / hr

10 - 49

Serves London, Canada

Services provided

90% Blockchain

10% Web Development

RedDuck is a Blockchain Development company specializing in Distributed Ledger Technology, Smart Contract Development, and Decentralized Application (DApp) Development. Reviews highlight their strong project management skills and responsiveness, with 100% positive feedback on their ability to meet deadlines and adapt to client needs. Clients frequently commend their technical precision and strategic approach, ensuring high-quality deliverables.

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6 of 6 Blockchain reviews are 5 stars

1 new review 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 (6) $10,000 to $49,000 (1)

What Clients Have Said
Clients consistently highlight RedDuck's competitive pricing and excellent value for money. For instance, one COO noted that they chose RedDuck for their 'good value for the cost,' while the CEO of InvariFi emphasized that their pricing fit the budget and offered 'great culture fit.' Overall sentiment reflects satisfaction with project outcomes delivered on time and within budget, reinforcing the perception of RedDuck as a reliable and cost-effective partner.
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More responsive than most other service providers

RedDuck is very responsive
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$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.
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DotStark Technologies LLP

4.7 3 reviews

$25,000+

$25 - $49 / hr

10 - 49

London, Canada

Services provided

10% Blockchain

40% Web Development

20% Mobile App Development +3 services

10% Cloud Consulting & SI

10% E-Commerce Development

10% Web Design

DotStark Technologies LLP is a web development company known for delivering well-designed websites and custom development projects. With 100% positive feedback, clients commend their professional, communicative approach and excellent customer service. Reviewers highlight their quick response times, cost-effective pricing, and alignment with client values.

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Reviews mention Professional
Clients have consistently praised DotStark Technologies LLP for their professionalism and effective communication. One client highlighted their 'quick and professional' approach during a website development project, noting that the team was 'well managed' and 'very communicative.' Additionally, the company was selected due to 'high ratings' and 'good value for cost,' reinforcing the overall positive sentiment regarding their professional conduct and project management.

Web Dev & Design for Food Service Manufacturer

4.5 Aug 14, 2023

The company was very communicative and managed the project well. They were quick and professional in their approach. There were no areas for improvement identified, indicating a high level of satisfaction with their professionalism.
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Average Project Cost Breakdown

Less than $10,000 (1)

What Clients Have Said
Clients consistently highlight DotStark Technologies LLP's competitive pricing and excellent value for money. One client noted that their pricing fit the budget while providing good value, leading to a well-designed website. Another client emphasized the company's responsiveness and helpfulness, indicating satisfaction with the investment made. Overall, the sentiment reflects a positive perception of cost-effectiveness and quality service.
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Canada (1) United States (1)

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London, Canada

26 Finch Crescent
London, Canada N6E 2E5
6 - 9

+1(647) 862-2190

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Reytech Infoways PVT LTD

Not yet reviewed

$5,000+

$50 - $99 / hr

10 - 49

London, Canada

Services provided

10% Blockchain

35% Web Development

30% Mobile App Development +2 services

15% UX/UI Design

10% Digital Strategy

Reytech Infoways PVT LTD is a web development company located in Dubai, United Arab Emirates and Muscat, Oman. Their services include Web Development and Mobile App Development.
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London, Canada

391 Fleming Drive
London, Canada N5V 4Y6
2 - 5

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Debut Infotech

4.9 45 reviews

$10,000+

$25 - $49 / hr

50 - 249

Kitchener, Canada

Services provided

20% Blockchain

30% AI Development

20% Custom Software Development +2 services

15% Mobile App Development

15% Web Development

Debut Infotech is a blockchain development company specializing in blockchain solutions, smart contract development, and decentralized application (dApp) development. With a 100% positive feedback rate across six reviews, clients commend their deep technical expertise, excellent project management, and proactive communication. They consistently deliver high-quality, scalable blockchain solutions, though some suggest enhancing the onboarding process for improved initial communication.

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Reviews mention Detail-oriented
Clients consistently praised Debut Infotech for their detail-oriented approach, highlighting their meticulous project management and commitment to quality. One client noted their 'impeccable attention to detail and quality' throughout the NFT marketplace development, while another appreciated their 'unwavering dedication' in crafting a blockchain-backed digital signing platform. The team's responsiveness to feedback and proactive communication were frequently mentioned, contributing to an overall sentiment of high satisfaction with their thoroughness and innovative solutions.

Blockchain Signing Platform for Document Authentication Firm

5.0 Jun 29, 2023

Debut Infotech allocated a specialized team consisting of iOS and Android developers, project managers, and consultants specifically dedicated to our project. This team meticulously oversaw all project phases, ensuring comprehensive management from initiation to completion. With their expertise and attention to detail, Debut Infotech diligently handled every aspect of the project life cycle, guaranteeing a seamless progression.
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Custom Software Development for Business Analysis Co

5.0 May 20, 2025

The team successfully adhered to the established timeline, meeting all project milestones as planned while maintaining high standards of quality. Their attentiveness to our feedback and proactive approach to adjustments facilitated a smooth and productive collaboration, ensuring we remained aligned with our project objectives at every stage. Furthermore, their proactive communication style and dedication to meeting deadlines distinguished them as a dependable and professional partner throughout the project. Their commitment to excellence sets them apart in the industry.
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AI Solution Development for Digital Marketing Agency

5.0 Jun 27, 2025

Debut Infotech demonstrated excellent project management throughout the engagement. They followed an agile methodology, breaking the project into well-defined sprints with regular progress updates. Communication was consistent and transparent, with weekly stand-up meetings and detailed status reports. All major deliverables were completed on or ahead of schedule, and they were very responsive to our feedback.
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AI Solution Development for Digital Marketing Agency

5.0 Jun 27, 2025

What stood out the most about Debut Infotech was their deep expertise in AI and their ability to translate complex technical concepts into practical business solutions. The level of personalization, attention to detail, and commitment to long-term success made them feel less like a vendor and more like a technology partner.
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AI Solution Development for Digital Marketing Agency

5.0 Jun 27, 2025

Overall, our experience with Debut Infotech was very positive. If there’s one area for improvement, it would be to provide more detailed technical documentation earlier in the development cycle. While they eventually delivered everything we needed, having clearer internal documentation from the start would have helped our non-technical team better understand the system architecture.
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7 of 7 Blockchain reviews are 5 stars

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

Blockchain Strategy for Simulation Attractions Company
5.0 — Debut Infotech is developing a Solana-based dApp for a simulation attractions company. The team creates the dApp's UI/UX, integrates tokenomics, develops smart contracts in Rust, and provides Read more
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Average Project Cost Breakdown

$10,000 to $49,000 (22) Less than $10,000 (5) $50,000 to $199,999 (3) $200,000 to $999,999 (2)

What Clients Have Said
Debut Infotech has received consistent praise for providing good value for money across various projects. Clients highlighted that their pricing fit within budgets while delivering quality work, with comments such as 'good value for cost' and 'pricing fit our budget'. However, there were a few negative experiences, with one client expressing dissatisfaction regarding quality and communication. Overall, sentiment leans positive, emphasizing the company's commitment to delivering high-quality solutions at competitive prices.
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More responsive than most other service providers

Debut Infotech 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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Inara consultancy services

4.5 2 reviews

$1,000+

$25 - $49 / hr

10 - 49

Waterloo, Canada

Services provided

20% Blockchain

30% Staffing

20% Web Development +2 services

15% Custom Software Development

15% Mobile App Development

Inara consultancy services is a Blockchain Development company known for delivering full-stack blockchain applications and blockchain technology solutions. They consistently exceed expectations, with 100% of reviewers highlighting their proactive approach and efficient project management. Clients appreciate their commitment to communication and timely delivery, often ahead of schedule, making them a reliable partner for blockchain projects.

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Reviews mention Hard working
Clients consistently praise Inara consultancy services for their exceptional work ethic and dedication. One client highlighted the team's 'incredible' communication and noted that they worked 'round the clock' to ensure project success. Another emphasized that the work ethic displayed was unmatched compared to previous vendors. Overall, the sentiment reflects a strong appreciation for the hard-working nature of Inara's team, leading to improved project outcomes and long-term partnerships.

Platform Dev & Security for Recruitment SaaS Platform

5.0 Sep 4, 2023

Firstly, the communication and work ethic from the whole team at ICS has been incredible right from the very start. Perfect communication and a work ethic that exceeded our expectations. The whole team have worked round the clock and even on the weekends to ensure our first 'sprint' went smoothly. Not only that but their work ethic is beyond what we have experienced with any third party vendor before.
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0 of 1 Blockchain reviews are 5 stars

1 new review for Blockchain in past 6 months

$10,000 – $49,000 avg. project cost

Blockchain PROJECT HIGHLIGHT

Web & Blockchain Development for Staff Augmentation Company
4.0 — Inara consultancy services built a full stack blockchain app for a staff augmentation company. They also handled the frontend development work for an end client's project. Read more
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Average Project Cost Breakdown

What Clients Have Said
Inara consultancy services is consistently praised for providing good value for money, with clients noting that their pricing fits within budget constraints while delivering high-quality results. One client highlighted their 'good value for cost' and another mentioned a 'dramatic increase in site and App performance,' reflecting satisfaction with the overall investment. The sentiment surrounding their pricing and value proposition is overwhelmingly positive, indicating that clients feel they receive substantial returns on their expenditures.
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Waterloo, Canada

521 Old Orchard Place
Waterloo, Canada N2T 1W2
2 - 5

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UREEQA Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Kitchener, Canada

Services provided

100% Blockchain

Blockchain company UREEQA Inc. Was established in 2020. The team specializes in Blockchain.
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Factr Limited

Not yet reviewed

$10,000+

$100 - $149 / hr

10 - 49

Brant, Canada

Services provided

30% Blockchain

30% AI Development

20% Custom Software Development +2 services

15% Web Development

5% Cybersecurity

Artificial intelligence company Factr Limited was launched in 2018. The team focuses on Artificial Intelligence and Blockchain.
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Cogdina Inc

Not yet reviewed

$10,000+

$50 - $99 / hr

2 - 9

Waterloo, Canada

Services provided

10% Blockchain

25% Web Development

20% Web Design +4 services

15% Mobile App Development

10% AI Development

10% IT Strategy Consulting

10% Logo

Cogdina Inc is a web development firm. Launched in 2018, the team provides Web Development and Web Design.
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Market Leaders

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Niche

Clutch Leaders Matrix

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1 DotStark Technologies LLP

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 1 London Blockchain Development Companies

DotStark Technologies LLP

$25,000+

$25 - $49 / hr

10 - 49

London, Canada

Ability to deliver

23.7/40.0

15.6/20 Reviews

2.1/10 Clients & Experience

6/10 Market Presence

Service focus

10% Blockchain

90% Other

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Reytech Infoways PVT LTD

$5,000+

$50 - $99 / hr

10 - 49

London, Canada

Ability to deliver

5.6/40.0

0/20 Reviews

0.7/10 Clients & Experience

4.9/10 Market Presence

Service focus

10% Blockchain

90% Other

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Debut Infotech

$10,000+

$25 - $49 / hr

50 - 249

Kitchener, Canada

Ability to deliver

34.7/40.0

16.6/20 Reviews

9.7/10 Clients & Experience

8.5/10 Market Presence

Service focus

20% Blockchain

80% Other

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Inara consultancy services

$1,000+

$25 - $49 / hr

10 - 49

Waterloo, Canada

Ability to deliver

28.3/40.0

14.6/20 Reviews

8.3/10 Clients & Experience

5.3/10 Market Presence

Service focus

20% Blockchain

80% Other

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UREEQA Inc.

Undisclosed

Undisclosed

10 - 49

Kitchener, Canada

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

100% Blockchain

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Factr Limited

$10,000+

$100 - $149 / hr

10 - 49

Brant, Canada

Ability to deliver

4.5/40.0

0/20 Reviews

0.5/10 Clients & Experience

4/10 Market Presence

Service focus

30% Blockchain

70% Other

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Cogdina Inc

$10,000+

$50 - $99 / hr

2 - 9

Waterloo, Canada

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

10% Blockchain

90% Other

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Top Blockchain Companies & Developers in London

List of the Top London Blockchain Development Companies

Blockchain Development for FinTech Company

Average Project Cost Breakdown

What Clients Have Said

RedDuck is very responsive

Software Development (Ethereum/EVM)

Reviews mention Professional

Web Dev & Design for Food Service Manufacturer

Average Project Cost Breakdown

What Clients Have Said

Reviews mention Detail-oriented

Blockchain Signing Platform for Document Authentication Firm

Custom Software Development for Business Analysis Co

AI Solution Development for Digital Marketing Agency

AI Solution Development for Digital Marketing Agency

AI Solution Development for Digital Marketing Agency

Blockchain Strategy for Simulation Attractions Company

Average Project Cost Breakdown

What Clients Have Said

Debut Infotech is very responsive

Reviews mention Hard working

Platform Dev & Security for Recruitment SaaS Platform

Web & Blockchain Development for Staff Augmentation Company

Average Project Cost Breakdown

What Clients Have Said

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List of the Top 1 London Blockchain Development Companies

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