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Top Blockchain Companies & Developers in Washington

Ratings Updated: October 4, 2026

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23 Companies

Country: United States

State: Washington

List of the Top Washington Blockchain Development Companies

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RedDuck

5.0 16 reviews

Verified Clutch Guarantee

$5,000+

$50 - $99 / hr

10 - 49

Serves Washington

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.

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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.
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Industry Experience

RedDuck has demonstrated expertise across various industries including Information Technology, Telecommunications, Financial Services, Gaming, and Manufacturing. Clients commend RedDuck for their strong project management, timely delivery, and adaptability in meeting client needs. Positive sentiment is particularly noted in Financial Services, where their proficiency in blockchain solutions and smart contract development has been highly praised. Their collaborative approach and commitment to quality make them a suitable partner for projects in tech-driven sectors.
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Manufacturing Logistics & Supply Chain Gaming Other Industry Financial services Information technology

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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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$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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Virtuosity Consulting

5.0 1 review

$10,000+

$25 - $49 / hr

50 - 249

Bellevue, WA

Services provided

10% Blockchain

25% Custom Software Development

20% IT Managed Services +4 services

15% CRM Consulting and SI

10% BI & Big Data Consulting & SI

10% Enterprise App Modernization

10% Web Development

Virtuosity Consulting is a consultancy firm specializing in providing program managers and developers to streamline release processes for enterprises. The company receives overwhelmingly positive feedback, with clients highlighting their ownership of projects, flexibility, and seamless integration as an extension of the team. Nearly all reviewers emphasize their excellent service quality and adaptability to changing demands.

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Industry Experience

Virtuosity Consulting has received positive feedback primarily from the software industry, highlighting their expertise in managing complex release processes and providing skilled program managers. Clients commend their ability to adapt to project demands, enhance efficiency, and deliver quality outcomes. Their proactive approach to ownership and process improvement stands out, leading to successful collaborations. Overall, the sentiment is highly favorable, indicating strong suitability for software development projects, particularly those requiring meticulous process management and flexible resource allocation.
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Software

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Average Project Cost Breakdown

$200,000 to $999,999 (1)

What Clients Have Said
Clients have consistently praised Virtuosity Consulting for their cost-effectiveness and high value for money. One client highlighted their decision to enter a multi-year contract based on favorable pricing and the quality of candidates provided. Additionally, the agency demonstrated flexibility in budget adjustments, successfully adapting to changing project demands while maintaining quality and efficiency, which further solidified their reputation as a valuable partner.
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Salvo Software

Not yet reviewed

$25,000+

$50 - $99 / hr

10 - 49

Vancouver, WA

Services provided

20% Blockchain

20% AI Development

20% IoT Development +4 services

10% AR/VR Development

10% Cloud Consulting & SI

10% Custom Software Development

10% Web Design

Cloud consulting & SI company Salvo Software was launched in 2017. The team offers cloud consulting & SI and IoT development and is in Vancouver, Washington and Guadalajara, Mexico.
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Niftmint

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Services provided

70% Blockchain

30% Custom Software Development

In Seattle, Washington, Niftmint is a small Blockchain company. Their services include Blockchain and Custom Software Development.
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New Alchemy

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Services provided

80% Blockchain

20% Business Consulting

New Alchemy is a Blockchain company launched in 2016. The agency focuses on Blockchain and Business Consulting.
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Mirai Blockchain Group

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Services provided

100% Blockchain

Mirai Blockchain Group, a Blockchain company, was launched in 2021. In Seattle, Washington, the team specializes in Blockchain.
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Futurism Technologies, Inc.

4.5 1 review

$10,000+

$25 - $49 / hr

250 - 999

Bellevue, WA

Services provided

10% Blockchain

10% AI Development

10% Custom Software Development +7 services

10% Cybersecurity

10% Digital Engineering

10% IT Managed Services

10% IT Strategy Consulting

10% IoT Development

10% Robotics Process Automation

10% UX/UI Design

Futurism Technologies offers digital marketing enhancements, eCommerce optimization, and IoT cybersecurity services. Client reviews highlight their effective solutions in increasing website traffic and sales, combined with robust security measures. Futurism Technologies is noted for their expertise, proactive communication, and timely project management, ensuring smooth and productive collaborations.

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Bellevue, WA

1400 112th Avenue Southeast
Bellevue, WA 98004
201 - 250

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Markup Designs

4.7 15 reviews

$25,000+

$50 - $99 / hr

50 - 249

Sammamish, WA

Services provided

10% Blockchain

10% AR/VR Development

10% Custom Software Development +9 services

10% E-Commerce Development

10% IoT Development

10% Mobile App Development

10% Other Application Development

10% Web Development

5% ERP Consulting and SI

5% Enterprise App Modernization

5% UX/UI Design

5% Web Design

Markup Designs is a versatile digital solutions company specializing in web development, SEO, and social media marketing. With over 85% of reviews highlighting their professionalism, creativity, and timely delivery, they are praised for their effective project management and customer-centric approach. Clients appreciate their ability to understand and meet business needs, though some suggest improvements in communication methods.

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Reviews mention Exceptional performance
Clients have expressed exceptional satisfaction with Markup Designs, highlighting their outstanding communication and understanding of project needs. One client noted the team's responsiveness and ability to accommodate challenging schedules, while another praised the clear explanations provided during the development process. Overall, clients feel that Markup Designs has been the best partner to work with, demonstrating a commitment to delivering quality results and a willingness to assist beyond the initial project scope.

Website Upgrade for Pilates Studio

5.0 Apr 6, 2022

I never worked with Wordpress because I thought it was very hard to. Nigel explained everything in a super easy way and still when I don't understand something he is there for us! This company has been the best to work with! Looking forward for them to do our SEO too.
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1 of 1 reviews is 5 stars

Unknown avg. project cost

Reviewed 1 time in the past 6 months
Markup Designs has received positive feedback from clients in the last six months, highlighting their effective communication and quality of work. A CEO from a consulting firm noted that Markup Designs met all project milestones and provided a modern, responsive website that enhanced the customer journey. The team was praised for their alignment with client values and culture, as well as their commitment to delivering high-quality results. No significant areas for improvement were identified.
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Average Project Cost Breakdown

Less than $10,000 (5)

What Clients Have Said
Clients consistently highlight Markup Designs' affordability and value for money. For instance, one client noted that their pricing fit within their budget, while another emphasized the company's effective strategy that aligned with their financial constraints. Overall, feedback reflects a positive sentiment regarding the cost-effectiveness of the services provided, with clients expressing satisfaction with timely delivery and high-quality outcomes, reinforcing the perception of excellent value relative to investment.
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United States (6) France (1) Germany (1)

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Omni212

Not yet reviewed

$1,000+

$100 - $149 / hr

10 - 49

Bellevue, WA

Services provided

10% Blockchain

25% AI Development

20% Cloud Consulting & SI +3 services

20% Cybersecurity

15% BI & Big Data Consulting & SI

10% CRM Consulting and SI

Omni212 is an AI firm. The Bellevue, Washington-based team focuses on Artificial Intelligence and cloud consulting & SI.
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AccelOne

4.9 12 reviews

$10,000+

$50 - $99 / hr

50 - 249

Kirkland, WA

Services provided

10% Blockchain

15% AI Development

15% Generative AI +6 services

10% AI Consulting

10% Custom Software Development

10% IT Managed Services

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

AccelOne is a software development company specializing in web and mobile app development, frontend engineering, and software augmentation. The reviews demonstrate overwhelmingly positive feedback, with about 90% highlighting their expertise in handling complex projects, responsive communication, and seamless integration with client teams. Clients frequently praise their competitive pricing, high-quality deliverables, and strong project management skills, with over 70% acknowledging their ability to adapt to changing needs and deliver on tight deadlines.

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Industry Experience

AccelOne has garnered positive feedback across various industries, including cybersecurity, gaming, fintech, information technology, media, and consumer products. Clients commend their expertise in web development, software engineering, and QA testing. In cybersecurity and fintech, they demonstrated reliability and responsiveness, while in gaming, their staffing solutions were highlighted. Overall, clients emphasize AccelOne’s strong communication, adaptability, and commitment to quality, making them a suitable partner for firms seeking technical expertise in software development and project management.
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IT Services Software Gaming Wellness & Fitness Information technology Business services Publishing Media Consumer Products

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Average Project Cost Breakdown

$50,000 to $199,999 (6) $200,000 to $999,999 (2) Less than $10,000 (1) $10,000 to $49,000 (1)

What Clients Have Said
Clients consistently commend AccelOne for their competitive pricing and strong value for money. One client noted, 'Their rates were very competitive, and they were a great partner to us,' highlighting their affordability without compromising quality. Another client emphasized the 'good value for cost' in their selection process. Overall, feedback indicates that clients feel they receive top-tier service and expertise at a reasonable price, making AccelOne a cost-effective choice for software development projects.
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More responsive than most other service providers

AccelOne 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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United States (10) Argentina (2)

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v37

Not yet reviewed

$5,000+

$100 - $149 / hr

2 - 9

Seattle, WA

Services provided

10% Blockchain

20% Custom Software Development

20% Enterprise App Modernization +3 services

20% Web Development

15% E-Commerce Development

15% Mobile App Development

V37 is a custom software development company located in Seattle, Washington. Launched in 2022, the team specializes in Custom Software Development and Web Development.
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Slashdev

5.0 19 reviews

$5,000+

$50 - $99 / hr

10 - 49

Seattle, WA

Services provided

10% Blockchain

20% Custom Software Development

20% Mobile App Development +4 services

20% Web Development

10% AI Development

10% E-Commerce Development

10% IT Staff Augmentation

Slashdev is a versatile software development company specializing in app development, web services, and recruitment of tech specialists. The company is praised for its strong communication, timely delivery, and high-quality outputs, with around 90% of reviews reflecting positive experiences. Clients frequently commend Slashdev's flexibility, technical insight, and commitment to exceeding expectations, with 70% noting their effective project management and problem-solving capabilities.

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Industry Experience

Slashdev has demonstrated expertise across various industries, including real estate, education, information technology, and utilities. Clients have praised their strong project management, technical skills, and ability to deliver innovative solutions that enhance operational efficiency. Overall sentiment is highly positive, particularly in the real estate and education sectors, where Slashdev's contributions led to significant improvements in user experience and codebase stability. This makes Slashdev a strong candidate for projects in these fields, as well as others requiring custom software development.
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Utilities Business services Other Industry Retail IT Services Software Information technology Education Healthcare Real estate

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United States (4) England (4) Sweden (2) Armenia (1) Brazil (1) Canada (1) Greece (1)

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Seattle, WA

1201 3rd Ave
Seattle, WA 98101
2 - 5

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Look Lateral Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Services provided

50% Blockchain

50% AI Development

Look Lateral Inc., a small AI company and Blockchain company, is located in Milano, Italy and Seattle, Washington. The team specializes in Artificial Intelligence and Blockchain.
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Seattle, WA

1200 Westlake Ave. N. Ste 802
Seattle, WA 98109
2 - 5

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Transparent Path

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Services provided

100% Blockchain

Founded in 2018, Transparent Path is a Blockchain company. The company focuses on Blockchain, and is small.
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Core Scientific

Not yet reviewed

Undisclosed

Undisclosed

50 - 249

Bellevue, WA

Services provided

50% Blockchain

50% AI Development

Core Scientific, an artificial intelligence development company and Blockchain company, offer Artificial Intelligence and Blockchain. They were established in 2017.
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TF Labs

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Services provided

20% Blockchain

20% AR/VR Development

20% Branding +2 services

20% Content Marketing

20% Generative AI

Branding firm TF Labs was established in 2017. The team specializes in Branding and Content Marketing and is headquartered in Seattle, Washington.
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Atonomi

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Services provided

50% Blockchain

50% IoT Development

Atonomi is a Blockchain and IoT development company. They are in Seattle, Washington and have small team. Their services include Blockchain and IoT development.
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Devscale

5.0 9 reviews

$25,000+

$100 - $149 / hr

10 - 49

Puyallup, WA

Services provided

10% Blockchain

30% Mobile App Development

15% AI Development +3 services

15% Custom Software Development

15% UX/UI Design

15% Web Development

Devscale is a software development company specializing in web development, custom software solutions, and product design. The company's reviews reflect a high level of client satisfaction, with approximately 90% of feedback being positive, highlighting their reliable project management and timely delivery. Clients frequently commend Devscale for their innovative solutions and personable approach, with 85% noting the company’s commitment to project ownership and collaboration.

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Industry Experience

Devscale has garnered positive feedback across various industries, including Education, Advertising & Marketing, SaaS, Legal, and Healthcare. Clients commend their expertise in user experience design, technical development, and project management, highlighting strong communication and attention to detail. The overall sentiment is favorable, with clients noting Devscale's ability to innovate and enhance product functionality. This makes them a strong fit for projects in tech-driven sectors where collaboration and quality are paramount.
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Education Advertising & marketing Other industries Legal Retail

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Average Project Cost Breakdown

$10,000 to $49,000 (3) $200,000 to $999,999 (3) $50,000 to $199,999 (2)

What Clients Have Said
Client feedback indicates that Devscale offers strong value for money, with many praising their ability to deliver high-quality work on time and within budget. One client noted, 'The real cost of a vendor isn’t what you pay for them, but the combination of price, time, and quality,' highlighting Devscale's excellence in all three areas. Another client mentioned their flexibility with payments, which is particularly beneficial for startups. Overall, sentiment is overwhelmingly positive regarding the company's pricing and value.
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Chicago, Illinois (5) St. Louis, Missouri (1) New York City, New York (1) Green Bay, Wisconsin (1) Los Angeles, California (1)

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Puyallup, WA

3103 31st Avenue Southeast
Puyallup, WA 98374
1

847-260-7174

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Leszynski Group, Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Bellevue, WA

Services provided

10% Blockchain

20% Business Consulting

20% Cloud Consulting & SI +5 services

10% AI Development

10% Custom Software Development

10% IoT Development

10% Mobile App Development

10% Web Development

Leszynski Group, Inc. Is a cloud consulting & SI company. Launched in 1990, the team specializes in cloud consulting & SI and Business Consulting.
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Marici Technology Solutions

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Services provided

10% Blockchain

10% API Development

10% Cloud Consulting & SI +7 services

10% Custom Software Development

10% DevOps Managed Services

10% E-Commerce Development

10% ECM Consulting and SI

10% ERP Consulting and SI

10% Enterprise App Modernization

10% IoT Development

Cloud consulting & SI company Marici Technology Solutions provides cloud consulting & SI and ECM consulting and SI. They are headquartered in Seattle, Washington.
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Karma Consulting, Inc.

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Federal Way, WA

Services provided

10% Blockchain

10% AI Consulting

10% AR/VR Development +7 services

10% CRM Consulting and SI

10% Cloud Consulting & SI

10% Custom Software Development

10% ERP Consulting and SI

10% IT Managed Services

10% IT Staff Augmentation

10% UX/UI Design

Karma Consulting, Inc. Is an UX design agency. They are in Federal Way, Washington. Their team provides UX/UI Design and cloud consulting & SI.
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Dom Cat Digital

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Services provided

10% Blockchain

20% Blockchain Marketing

20% Pay Per Click +4 services

20% Search Engine Optimization

10% Content Marketing

10% Corporate Training & Coaching

10% Social Media Marketing

Established in 2022, Dom Cat Digital is a small SEO services firm. Their team specializes in Search Engine Optimization and Pay Per Click.
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Abasys Technologies Inc

Not yet reviewed

Undisclosed

Undisclosed

10 - 49

Bellevue, WA

Services provided

20% Blockchain

20% Custom Software Development

20% E-Commerce Development +2 services

20% Mobile App Development

20% Web Development

Abasys Technologies Inc is a software development firm. Located in Bellevue, Washington, the firm was founded in 1987. Their services include Custom Software Development and Blockchain.
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Vinova

4.6 5 reviews

$1,000+

< $25 / hr

50 - 249

Seattle, WA

Services provided

10% Blockchain

15% Low/No Code Development

10% Custom Software Development +30 services

10% IT Staff Augmentation

10% Mobile App Development

10% Web Development

5% AI Development

5% IT Managed Services

1% AI Consulting

1% API Development

1% AR/VR Development

1% Application Management & Support

1% Application Testing

1% CRM Consulting and SI

1% Cloud Consulting & SI

1% Cybersecurity

1% DevOps Managed Services

1% Digital Strategy

1% E-Commerce Development

1% ECM Consulting and SI

1% ERP Consulting and SI

1% Email Marketing

1% Employer of Record (EOR) Services

1% Enterprise App Modernization

1% Generative AI

1% HR Outsourcing

1% IT Strategy Consulting

1% IoT Development

1% Microservices Architecture Services

1% Mobile & App Marketing

1% Robotics Process Automation

1% Wearable App Development

1% Web Design

Vinova is a versatile IT service provider specializing in mobile and web application development, IT support, and software development resources. They receive consistently positive feedback for their professional support, proactiveness, and effective communication, with more than 80% of reviews highlighting their project management skills and flexibility. Clients appreciate their ability to meet deadlines and tailor solutions to specific needs, with only minor suggestions for clearer scope definition.

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Reviews mention Communicative
Clients have consistently praised Vinova for their exceptional communication skills. A project director was dedicated to each client, attending all meetings to ensure clear messaging. Furthermore, their use of an online project management tool facilitated real-time updates and direct input from clients, minimizing email exchanges. Overall, the sentiment surrounding Vinova's communicative approach is highly positive, with clients expressing satisfaction and a desire to continue working with them.

Creative Application Development for Digital Media Company

4.0 Mar 24, 2015

The biggest thing that sticks out is their communication style. We were assigned a project director who worked very closely with our team. The project director was at every client meeting, which helped to ensure the same message was disseminated to our production teams.
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More responsive than most other service providers

Vinova 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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Singapore (4) United States (1)

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Seattle, WA

4751 12th Avenue Northeast
Seattle, WA 98105
16 - 20

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Clutch Leaders Matrix

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1 Virtuosity Consulting

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.

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List of the Top 1 Washington Blockchain Development Companies

Virtuosity Consulting

$10,000+

$25 - $49 / hr

50 - 249

Bellevue, WA

Ability to deliver

25.8/40.0

16.2/20 Reviews

3.1/10 Clients & Experience

6.5/10 Market Presence

Service focus

10% Blockchain

90% Other

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Salvo Software

$25,000+

$50 - $99 / hr

10 - 49

Vancouver, WA

Ability to deliver

7.5/40.0

0/20 Reviews

1.1/10 Clients & Experience

6.4/10 Market Presence

Service focus

20% Blockchain

80% Other

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Niftmint

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

70% Blockchain

30% Other

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New Alchemy

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

80% Blockchain

20% Other

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Mirai Blockchain Group

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Blockchain

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Futurism Technologies, Inc.

$10,000+

$25 - $49 / hr

250 - 999

Bellevue, WA

Ability to deliver

5.6/40.0

0/20 Reviews

0/10 Clients & Experience

5.6/10 Market Presence

Service focus

10% Blockchain

90% Other

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Markup Designs

$25,000+

$50 - $99 / hr

50 - 249

Sammamish, WA

Ability to deliver

25.7/40.0

17/20 Reviews

2.6/10 Clients & Experience

6.1/10 Market Presence

Service focus

10% Blockchain

90% Other

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Omni212

$1,000+

$100 - $149 / hr

10 - 49

Bellevue, WA

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

10% Blockchain

90% Other

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AccelOne

$10,000+

$50 - $99 / hr

50 - 249

Kirkland, WA

Ability to deliver

32.9/40.0

16/20 Reviews

8.6/10 Clients & Experience

8.3/10 Market Presence

Service focus

10% Blockchain

90% Other

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v37

$5,000+

$100 - $149 / hr

2 - 9

Seattle, WA

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

10% Blockchain

90% Other

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Slashdev

$5,000+

$50 - $99 / hr

10 - 49

Seattle, WA

Ability to deliver

35.9/40.0

17.4/20 Reviews

10/10 Clients & Experience

8.5/10 Market Presence

Service focus

10% Blockchain

90% Other

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Look Lateral Inc.

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Blockchain

50% Other

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Transparent Path

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

100% Blockchain

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Core Scientific

Undisclosed

Undisclosed

50 - 249

Bellevue, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Blockchain

50% Other

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TF Labs

Undisclosed

Undisclosed

2 - 9

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

20% Blockchain

80% Other

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Atonomi

Undisclosed

Undisclosed

10 - 49

Seattle, WA

Ability to deliver

0/40.0

0/20 Reviews

0/10 Clients & Experience

0/10 Market Presence

Service focus

50% Blockchain

50% Other

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