Top Blockchain Companies & Developers in Seattle
21 Companies
List of the Top Seattle Blockchain Development Companies
Sponsored
-
Featured
What are Featured Providers?
$5,000+$50 - $99 / hr10 - 49Serves Seattle, WAServices provided
100% BlockchainSee all 13 projectsRedDuck 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.
5 of 5 Blockchain reviews are 5 stars2 new reviews for Blockchain in past 6 months$50,000 – $199,999 avg. project costRead 5 ReviewsBlockchain 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 moreWas this helpful?
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.
Read All ReviewsSelect Industry to see insights
Financial services Other Industry Logistics & Supply Chain GamingWas this helpful?
More responsive than most other service providers
Get in TouchRedDuck is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
View projects from:
This provider is fluent in 4 languages:
- English
- German
- Ukrainian
- Russian
This provider is available in 37 time zones:
- Colombia Time (COT)
- Near East Time (NET)
- Middle East Time (MET)
- China Taiwan Time (CTT)
- Gulf Standard Time (GST)
- Brazil Eastern Time (BET)
- Greenwich Mean Time (GMT)
- India Standard Time (IST)
Was this helpful?
-
Slashdev
VerifiedLook 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
$5,000+$50 - $99 / hr10 - 49Seattle, WAServices provided
10% Blockchain20% Custom Software Development20% Mobile App Development +4 services20% Web Development10% AI Development10% E-Commerce Development10% IT Staff AugmentationSee all 18 projectsSlashdev is a versatile IT services company offering tailored solutions for software development, web and mobile app development, and recruitment of specialized developers. Based on extensive client feedback, Slashdev is praised for its strong technical expertise, flexibility, and timely delivery, with approximately 90% of reviews highlighting their exceptional project management and responsiveness. Clients also commend their ability to quickly understand complex systems and provide scalable solutions, although some suggest improvement in deliverable clarity during planning stages.
Reviews mention Reasonable pricing
Clients have reported a positive sentiment regarding Slashdev's pricing, describing it as "fair" and "impressive." One client noted that the company felt reasonable in their pricing structure while hiring a senior engineer, emphasizing the value provided. Another client, the CEO of a startup, highlighted their pricing as a significant positive aspect of the partnership. Overall, the feedback reflects satisfaction with the cost-effectiveness of their services.-
Dev Staff Augmentation for Software Development Company
5.0 Apr 5, 2023Hired a very competent developer in just three days, for a fair rate.
Read Full Review -
Mobile App Dev & Staff Augmentation for Banking Company
5.0 Sep 26, 2022They also felt very fair in their pricing.
Read Full Review -
Web Design for Staffing & Selection Company
4.5 Jun 29, 2022Their price is impressive.
Read Full Review
Was this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently highlight Slashdev's competitive pricing and excellent value for money. One client noted they selected Slashdev due to their 'good value for cost' and 'pricing fit our budget.' Another emphasized that they received 'the best value on the market' and appreciated the company's commitment to delivering high-quality results at a fraction of competitors' prices. Overall, feedback reflects strong satisfaction with the balance between cost and the quality of service provided.Was this helpful?
View projects from:
Was this helpful?
See All Locations (8)Seattle, WA
1201 3rd Ave
Seattle, WA 981012 - 5
Was this helpful?
-
-
$10,000+$50 - $99 / hr50 - 249Kirkland, WA
Services provided
10% Blockchain15% AI Development15% Generative AI +6 services10% AI Consulting10% Custom Software Development10% IT Managed Services10% IT Staff Augmentation10% Mobile App Development10% Web DevelopmentSee all 12 projectsAccelOne is a versatile software development company offering web and app development, custom software solutions, and staff augmentation services. Their reviews consistently highlight their adaptability, technical expertise, and strong project management skills, with over 90% of feedback being positive. Clients appreciate their transparency, responsiveness, and competitive rates, with 70% mentioning their high-quality deliverables and seamless integration with client teams.
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Clients consistently praised AccelOne for their competitive pricing and excellent value for money. One client highlighted their 'good value for cost' while another noted that their rates were 'very competitive.' Additionally, multiple reviews emphasized the high quality of work delivered, with one client stating AccelOne provided 'high-quality work comparable to major software development companies.' Overall, the sentiment reflects satisfaction with both the cost and the quality of services received.Was this helpful?
More responsive than most other service providers
Get in TouchAccelOne is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
View projects from:
Was this helpful?
Review Rating from Clients
5.0/5.0
Quality
4.9
Schedule
4.8
Cost
4.8
Willing to Refer
5.0
Washington clients commend AccelOne’s proficiency in app development, cloud solutions, and custom software, emphasizing their responsiveness and collaborative approach. Their experienced team supports startups and established companies with scalable, innovative tech solutions, ensuring timely, effective project execution.Read Local ReviewsWas this helpful?
-
$10,000+$25 - $49 / hr50 - 249Bellevue, WA
Services provided
10% Blockchain25% Custom Software Development20% IT Managed Services +4 services15% CRM Consulting and SI10% BI & Big Data Consulting & SI10% Enterprise App Modernization10% Web DevelopmentSee all 1 projectsVirtuosity 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.
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.
Read All ReviewsSelect Industry to see insights
SoftwareWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat 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.Was this helpful?
Review Rating from Clients
5.0/5.0
Quality
4.5
Schedule
5.0
Cost
4.5
Willing to Refer
5.0
Virtuosity Consulting in Redmond is highly regarded for their process-oriented approach, providing skilled project managers and tooling developers for large-scale software releases. Clients highlight their ownership, flexibility, and proactive contributions to improve workflows and project outcomes.Read Local ReviewsWas this helpful?
-
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
70% Blockchain30% Custom Software DevelopmentIn Seattle, Washington, Niftmint is a small Blockchain company. Their services include Blockchain and Custom Software Development.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
80% Blockchain20% Business ConsultingNew Alchemy is a Blockchain company launched in 2016. The agency focuses on Blockchain and Business Consulting.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
100% BlockchainMirai Blockchain Group, a Blockchain company, was launched in 2021. In Seattle, Washington, the team specializes in Blockchain.
Read more -
$10,000+$25 - $49 / hr250 - 999Bellevue, WA
Services provided
10% Blockchain10% AI Development10% Custom Software Development +7 services10% Cybersecurity10% Digital Engineering10% IT Managed Services10% IT Strategy Consulting10% IoT Development10% Robotics Process Automation10% UX/UI DesignSee all 1 projectsFuturism 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.
See All Locations (3)Bellevue, WA
1400 112th Avenue Southeast
Bellevue, WA 98004201 - 250
Was this helpful?
-
UndisclosedUndisclosed10 - 49Seattle, WA
Services provided
50% Blockchain50% AI DevelopmentLook 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.
Read moreSee All Locations (2)Seattle, WA
1200 Westlake Ave. N. Ste 802
Seattle, WA 981092 - 5
Was this helpful?
-
$1,000+$100 - $149 / hr10 - 49Bellevue, WA
Services provided
10% Blockchain25% AI Development20% Cloud Consulting & SI +3 services20% Cybersecurity15% BI & Big Data Consulting & SI10% CRM Consulting and SIOmni212 is an AI firm. The Bellevue, Washington-based team focuses on Artificial Intelligence and cloud consulting & SI.
Read more -
$5,000+$100 - $149 / hr2 - 9Seattle, WA
Services provided
10% Blockchain20% Custom Software Development20% Enterprise App Modernization +3 services20% Web Development15% E-Commerce Development15% Mobile App DevelopmentV37 is a custom software development company located in Seattle, Washington. Launched in 2022, the team specializes in Custom Software Development and Web Development.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
20% Blockchain20% AR/VR Development20% Branding +2 services20% Content Marketing20% Generative AIBranding firm TF Labs was established in 2017. The team specializes in Branding and Content Marketing and is headquartered in Seattle, Washington.
Read more -
$25,000+$100 - $149 / hr10 - 49Puyallup, WA
Services provided
10% Blockchain30% Mobile App Development15% AI Development +3 services15% Custom Software Development15% UX/UI Design15% Web DevelopmentSee all 9 projectsDevscale is a software development firm specializing in building and enhancing products, websites, and applications for a diverse range of industries. The reviews highlight their strong project management, consistent communication, and timely delivery, with 100% of the reviewers expressing satisfaction with their services. Numerous clients commend Devscale's creativity, leadership, and collaborative approach, while a few suggest improvements in communication on timelines. The company is praised for its personable and engaging team, fostering a fun yet professional working relationship.
Industry Experience
Devscale has demonstrated expertise across several industries, including Education, Advertising & Marketing, IT Services, Software, Legal, Healthcare, and Retail. Clients consistently praise their attention to detail, project management skills, and ability to improve product functionality and user experience. Overall sentiment is highly positive, highlighting strengths in collaboration, communication, and innovative solutions. Companies in need of technical development, design, or consulting in these sectors would find Devscale a fitting partner.
Read All ReviewsSelect Industry to see insights
Education Advertising & marketing IT Services Software Legal Healthcare RetailWas this helpful?
Average Project Cost Breakdown
Read All ReviewsWhat Clients Have Said
Devscale is consistently noted for delivering strong value for money, with clients expressing satisfaction regarding the quality of work relative to costs. One client highlighted, 'the real cost of a vendor isn’t what you pay for them, but the combination of price, time, and quality,' praising Devscale for excelling in all three areas. Another client appreciated their flexibility on payment, indicating a willingness to accommodate startups' financial constraints. Overall, feedback reflects a positive sentiment towards their pricing structure and the outcomes achieved.Was this helpful?
View projects from:
Was this helpful?
See All Locations (9)Puyallup, WA
3103 31st Avenue Southeast
Puyallup, WA 983741
847-260-7174
Was this helpful?
-
$1,000+< $25 / hr50 - 249Seattle, WA
Services provided
10% Blockchain15% Low/No Code Development10% Custom Software Development +30 services10% IT Staff Augmentation10% Mobile App Development10% Web Development5% AI Development5% IT Managed Services1% AI Consulting1% API Development1% AR/VR Development1% Application Management & Support1% Application Testing1% CRM Consulting and SI1% Cloud Consulting & SI1% Cybersecurity1% DevOps Managed Services1% Digital Strategy1% E-Commerce Development1% ECM Consulting and SI1% ERP Consulting and SI1% Email Marketing1% Employer of Record (EOR) Services1% Enterprise App Modernization1% Generative AI1% HR Outsourcing1% IT Strategy Consulting1% IoT Development1% Microservices Architecture Services1% Mobile & App Marketing1% Robotics Process Automation1% Wearable App Development1% Web DesignSee all 5 projectsVinova is a versatile development company specializing in mobile and web applications, IT support, and strategic market research. Across five reviews, 80% highlight their professionalism and timely delivery, while 60% commend their proactive communication and client understanding. However, 20% suggest a need for clearer scope definition. Overall, Vinova is praised for its flexibility, engagement, and capability to meet diverse client needs efficiently.
3 of 3 reviews are 5 starsUnknown avg. project costRead 3 Recent ReviewsReviewed 3 times in the past 6 months
Recent reviews for Vinova reflect a positive overall sentiment, highlighting their proactive communication and timely project delivery. A fintech CTO praised Vinova for actionable market research that informed their go-to-market strategy, while a client from an investment firm noted a significant time-saving of 30 hours per week due to Vinova's effective development support. The Director of IT at a K-12 school emphasized their high engagement and responsiveness to evolving needs, indicating strong client satisfaction across various sectors.Was this helpful?
More responsive than most other service providers
Get in TouchVinova is very responsive
They are a great candidate to start a conversation with. Send them a short message or project inquiry.Was this helpful?
View projects from:
Was this helpful?
-
UndisclosedUndisclosed10 - 49Bellevue, WA
Services provided
10% Blockchain20% Business Consulting20% Cloud Consulting & SI +5 services10% AI Development10% Custom Software Development10% IoT Development10% Mobile App Development10% Web DevelopmentLeszynski Group, Inc. Is a cloud consulting & SI company. Launched in 1990, the team specializes in cloud consulting & SI and Business Consulting.
Read more -
UndisclosedUndisclosed10 - 49Seattle, WA
Services provided
10% Blockchain10% API Development10% Cloud Consulting & SI +7 services10% Custom Software Development10% DevOps Managed Services10% E-Commerce Development10% ECM Consulting and SI10% ERP Consulting and SI10% Enterprise App Modernization10% IoT DevelopmentCloud consulting & SI company Marici Technology Solutions provides cloud consulting & SI and ECM consulting and SI. They are headquartered in Seattle, Washington.
Read more -
UndisclosedUndisclosed2 - 9Seattle, WA
Services provided
10% Blockchain20% Blockchain Marketing20% Pay Per Click +4 services20% Search Engine Optimization10% Content Marketing10% Corporate Training & Coaching10% Social Media MarketingEstablished in 2022, Dom Cat Digital is a small SEO services firm. Their team specializes in Search Engine Optimization and Pay Per Click.
Read more -
UndisclosedUndisclosed10 - 49Federal Way, WA
Services provided
10% Blockchain10% AI Consulting10% AR/VR Development +7 services10% CRM Consulting and SI10% Cloud Consulting & SI10% Custom Software Development10% ERP Consulting and SI10% IT Managed Services10% IT Staff Augmentation10% UX/UI DesignKarma Consulting, Inc. Is an UX design agency. They are in Federal Way, Washington. Their team provides UX/UI Design and cloud consulting & SI.
Read more -
UndisclosedUndisclosed10 - 49Seattle, WA
Services provided
100% BlockchainFounded in 2018, Transparent Path is a Blockchain company. The company focuses on Blockchain, and is small.
Read more -
UndisclosedUndisclosed50 - 249Bellevue, WA
Services provided
50% Blockchain50% AI DevelopmentCore Scientific, an artificial intelligence development company and Blockchain company, offer Artificial Intelligence and Blockchain. They were established in 2017.
Read more -
UndisclosedUndisclosed10 - 49Seattle, WA
Services provided
50% Blockchain50% IoT DevelopmentAtonomi is a Blockchain and IoT development company. They are in Seattle, Washington and have small team. Their services include Blockchain and IoT development.
Read more -
UndisclosedUndisclosed10 - 49Bellevue, WA
Services provided
20% Blockchain20% Custom Software Development20% E-Commerce Development +2 services20% Mobile App Development20% Web DevelopmentAbasys 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.
Read more
Share your project goals, and we’ll connect you with verified partners who fit your budget and timeline.
Get My MatchesTell us what you need — we’ll match you with top agencies in minutes.
Get My MatchesWhy Trust Clutch
At Clutch, we believe trust is the foundation of every business relationship. Our mission is to help buyers make confident, data-backed decisions informed by real client experiences.
Every review on Clutch undergoes a rigorous, human-led verification process to make sure it’s valid. Our team of specialists confirms the identity of each reviewer, ensures the project is legitimate, and only publishes reviews that meet our strict criteria.
Verification doesn’t stop at the point of publication. Our Trust & Safety team routinely audits older reviews against our guidelines. When reviews fall short of our standards, we remove them.
We evaluate service providers using a structured methodology that combines:
- In-depth client interviews and ratings
- Comprehensive project details
- Market presence
- Portfolio examples and industry recognition
This data powers tools like the Leaders Matrix, which helps you compare agencies directly. Our research team curates rankings by weighing verified reviews most heavily, so the most trusted and experienced providers rise to the top.
Using this unique combination of verified client feedback and provider-supplied insights, Clutch distills the most important details into clear, digestible summaries so you have everything you need to make confident, informed decisions quickly.
We take fraud seriously. Providers who violate our guidelines may face lower rankings, restricted visibility, or removal from the platform altogether.
Clutch’s commitment to transparency is ongoing. We’re constantly refining our systems to protect the integrity of reviews and support you in finding the right agency.
Rollover to see company insights or click a company below for more details.
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 3 Seattle Blockchain Development Companies
-
$5,000+$50 - $99 / hr10 - 49Seattle, WA
Ability to deliver
35.3/40.016.8/20 Reviews10/10 Clients & Experience8.5/10 Market PresenceService focus
10% Blockchain90% Other -
$10,000+$50 - $99 / hr50 - 249Kirkland, WA
Ability to deliver
32.9/40.016/20 Reviews8.6/10 Clients & Experience8.3/10 Market PresenceService focus
10% Blockchain90% Other -
$10,000+$25 - $49 / hr50 - 249Bellevue, WA
Ability to deliver
25.8/40.016.2/20 Reviews3.1/10 Clients & Experience6.5/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed2 - 9Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
70% Blockchain30% Other -
UndisclosedUndisclosed2 - 9Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
80% Blockchain20% Other -
UndisclosedUndisclosed2 - 9Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Blockchain -
$10,000+$25 - $49 / hr250 - 999Bellevue, WA
Ability to deliver
5.6/40.00/20 Reviews0/10 Clients & Experience5.6/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed10 - 49Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
50% Blockchain50% Other -
$1,000+$100 - $149 / hr10 - 49Bellevue, WA
Ability to deliver
5.5/40.00/20 Reviews0/10 Clients & Experience5.5/10 Market PresenceService focus
10% Blockchain90% Other -
$5,000+$100 - $149 / hr2 - 9Seattle, WA
Ability to deliver
4/40.00/20 Reviews0/10 Clients & Experience4/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed2 - 9Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
20% Blockchain80% Other -
$25,000+$100 - $149 / hr10 - 49Puyallup, WA
Ability to deliver
31.9/40.016.2/20 Reviews9.8/10 Clients & Experience6/10 Market PresenceService focus
10% Blockchain90% Other -
$1,000+< $25 / hr50 - 249Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed10 - 49Bellevue, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed10 - 49Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed2 - 9Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed10 - 49Federal Way, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
10% Blockchain90% Other -
UndisclosedUndisclosed10 - 49Seattle, WA
Ability to deliver
0/40.00/20 Reviews0/10 Clients & Experience0/10 Market PresenceService focus
100% Blockchain
Get matched with the 5 best-fit agencies for your project—in 4 minutes or less.