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Top Blockchain Development Companies in Seattle

Researched by:Goodfirms Research TeamUpdated:September 28, 2026

Goodfirms has reviewed 9 Blockchain Development Companies in Seattle as of September 2026. The top-ranked firm is Probey Services (5.0 stars, 122 verified reviews, < $25/hr, founded 2016, Seattle). Across the category, the median hourly rate is $37, median client rating is 5, and 44% of firms employ 50+ members. Explore the vetted Blockchain Development Companies in Seattle below, compare their strengths, and connect with the provider best suited to your requirements.

Are you looking for top blockchain development services in Seattle? Here is a list of blockchain development companies in Seattle, along with research and reviews. Every business bears a post-exchange settlement protocol, wherein blockchain can play a key role by permitting the faster settlement of transactions as it doesn't require a protracted procedure of check, compromise, and authorization. This is because a solitary form of settled information is currently accessible on a common record between financial institutions. Due to the absence of third parties, its highly secure nature through cryptography and cost-effectiveness are positive features of blockchain technology! Need it? Goodfirms is here with a list of the best blockchain development companies in Seattle below:

Goodfirms has verified 9 Blockchain Development Companies in Seattle - part of 3,247+ Blockchain Development Companies, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.

Top 10 at Glance

Compare the highest-ranked firms first side by side.

Rank
Company
Rating
Reviews
Hourly Rate
Team Size
Founded
Location
Action

List of Top Seattle Blockchain Developers & Companies

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Hourly Rate
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Client Type

  • Probey Services

    Pro Verified
    5.0122 Reviews

    Using AI Tools

    • ChatGPTChatGPT
    • ClaudeClaude
    • GeminiGemini
    • PerplexityPerplexity
    • GitHub CopilotGitHub Copilot
    • + 4 More

    Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, and growing organizations worldwide. With a strong presence in India and 11 global branches, we combine global reach with deep technical expertise.Our 320+ specialists have successfully delivered 1900+projects over the ... read Probey Services reviews & insights

    Probey Services is a renowned IT and digital solutions provider, powering innovation for startups, SMEs, ... read Probey Services reviews & insights

    < $25/hr
    250 - 999
    2016
    Seattle, United States
    A well-executed website project that gave us a stronger foundation for future growth. - Product Manager
    Visit Website

    Why Probey Services?

    • Delivered 1,800 projects in the last decade
    • Awarded, Most-reviewed, most-rated (122 reviews)
    • Reliable & scalable solution with 320 experts

  • Appsters

    4.913 Reviews

    Using AI Tools

    • ClaudeClaude
    • GitHub CopilotGitHub Copilot
    • CursorCursor

    Appsters delivers mobile app development solutions across more than 10 industries to drive business success and growth. Dedicated to crafting digital solutions that simplify complexities and boost efficiency, Appsters was born from a global collaboration of tech enthusiasts. Our mission is to transform your biggest ... read Appsters reviews & insights

    Appsters delivers mobile app development solutions across more than 10 industries to drive business success ... read Appsters reviews & insights

    $25 - $49/hr
    250 - 999
    2022
    Seattle, United States
    Appsters delivered a custom mobile app that made daily work smoother! - Product Director
    Visit Website

    Why Appsters?

    • Proven expertise in scalable app solutions
    • Transparent communication, start to finish
    • Fast delivery with quality-driven development

  • Post your project. Get proposals from PRO-verified firms.

    Goodfirms recommends the top 3. You pick the winner.

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  • Chop Dawg

    Pro Verified
    5.0171 Reviews

    Using AI Tools

    • ChatGPTChatGPT
    • ClaudeClaude
    • CursorCursor
    • GitHub CopilotGitHub Copilot
    • PerplexityPerplexity
    • + 3 More

    At Chop Dawg, we're more than an ordinary app development agency. We're your extended team, focused on delivering the results your business needs. For over 18 years, we've launched 500+ apps for startups, growing businesses, Fortune 500s, nonprofits, & government agencies. When you partner with ... read Chop Dawg reviews & insights

    At Chop Dawg, we're more than an ordinary app development agency. We're your extended team, ... read Chop Dawg reviews & insights

    $25 - $49/hr
    50 - 249
    2009
    Seattle, United States
    Chop Dawg went above and beyond to deliver a professional website while providing consistent updates, expertise, and exceptional service throughout the project. - CEO
    Visit Website

    Why Chop Dawg?

    • Over 500 apps launched in 18 years
    • 92 percent of partners return for more
    • Fixed monthly pricing, no surprises

  • Raft

    5.02 Reviews

    Raft provides you with the best tech talent backed by the company’s domain expertise, software development knowledge base, and extensive business network worldwide. Our Smart model is ideal for: • Series A and B startups. The company has an MVP and a small team. Recently ... read Raft reviews & insights

    Raft provides you with the best tech talent backed by the company’s domain expertise, software ... read Raft reviews & insights

    $25 - $49/hr
    50 - 249
    2019
    Seattle, United States
    Raft's team demonstrated a high level of professionalism and efficiency from the start, consistently exceeding expectations in terms of delivering th - Marketing Specialist
    Visit Website

  • Soft Galaxy

    Soft Galaxy is a romanian-israeli company based in Bucharest and Tel Aviv. We bring ideas to life by providing industry standard solutions to businesses, from start-up companies to multinational corporations.

    Soft Galaxy is a romanian-israeli company based in Bucharest and Tel Aviv. We bring ideas ... read Soft Galaxy reviews & insights

    $25 - $49/hr
    10 - 49
    2009
    Seattle, United States
    Visit Website

  • VirtualITme

    VirtualITme, LLC is a Seattle-based technology and IT consulting company focused on autonomous AI agents, cloud infrastructure, business process automation, and intelligent data solutions. The company develops AI-driven systems designed to connect with business applications, APIs, databases, SaaS platforms, and internal enterprise systems to automate complex workflows and improve operational efficiency.Its core capabilities include AI ... read VirtualITme reviews & insights

    VirtualITme, LLC is a Seattle-based technology and IT consulting company focused on autonomous AI agents, ... read VirtualITme reviews & insights

    $100 - $149/hr
    2 - 9
    2007
    Seattle, United States
    Visit Website

  • DevFactori

    DevFactori was founded in 2016 by experienced former Microsoft and VISA engineers, has marketing offices in Seattle and NYC, and boasts a state of the art offshore development center in Pakistan. Startups: We work closely with startups to conceptualize, design and develop ideas. DevFactori is committed to delivering quality products, providing a personalized experience, and ... read DevFactori reviews & insights

    DevFactori was founded in 2016 by experienced former Microsoft and VISA engineers, has marketing offices ... read DevFactori reviews & insights

    $25 - $49/hr
    2 - 9
    Seattle, United States
    Visit Website

  • GenUI

    The challenges of innovation must be met as a team. That’s why we don’t go it alone. We start with authentic listening. We focus on relationships instead of transactions, to establish trust that will serve as the foundation of our collaboration. The quality of our work is inseparable from the quality of our collaboration. We ... read GenUI reviews & insights

    The challenges of innovation must be met as a team. That’s why we don’t go ... read GenUI reviews & insights

    $25 - $49/hr
    10 - 49
    2009
    Seattle, United States
    Visit Website

  • DEV.co

    DEV.co brings brings over 12 years of successful leadership to custom software development projects, leading cross-functional teams through designing and refining new processes to generate real, actionable business solutions for our clients small and large. We combine senior-level software and technical support with practical real-world business applications in finance, marketing, sales and business operations. By ... read DEV.co reviews & insights

    DEV.co brings brings over 12 years of successful leadership to custom software development projects, leading ... read DEV.co reviews & insights

    $25 - $49/hr
    10 - 49
    2008
    Seattle, United States
    Visit Website

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1 cities with the best Value Score for hiring.

Ranked by a composite blending firm count (supply), average rating (quality), and average hourly rate (cost). Affordability is weighted highest (50%), so this surfaces genuinely affordable destinations - not just the biggest markets.

US★ TOP PICK

Seattle

Home to 9 vetted firms, with an average rate of $45/hr and a 5★ client rating.

Firms9
Avg Rate$45/hr
Avg Rating★ 5
Value Score78 / 100

Where the firms are.

Bubble size shows how many firms each country has; colour shows its average hourly rate. Tap any country for its firm count, average rate, rating, and Value Score.

Loading map…

All cities ranked by Value Score.

Every city in scope, ranked by Value Score.

CityFirmsAvg RateAvg RatingValue ScoreAction
USSeattle9$45/hr578View firms
USSeattle
9 firms$45/hr5
Value Score78 / 100
View firms

Match by work-hour overlap with your team.

Cost matters - but so does being able to actually talk to your developer during your workday. Here are the best destinations for each major hub.

If you're in US (PT/ET)Recommended

Look for nearshore LATAM partners - same-day collaboration, similar time zones, and 50-60% cost savings vs domestic.

MXMexico~7h overlap
ARArgentina~6h overlap
BRBrazil~5h overlap
CACanada~8h overlap
If you're in Europe (CET/GMT)Recommended

Eastern Europe is your sweet spot - 1-2h time zone shift, EU GDPR alignment, and 40-50% lower rates than Western Europe.

PLPoland~8h overlap
UAUkraine~7h overlap
RORomania~7h overlap
ZASouth Africa~8h overlap

How firms are placed on the matrix

Every position on this chart is the output of the Goodfirms ranking algorithm - a weighted composite of signals across two axes. The algorithm is recomputed regularly and is fully documented.

Sponsorship does not affect placement. PRO members receive visible badges and ad placements, but their algorithmic scores are calculated identically to free listings.

Read the full methodology
Algorithm at a glance
1
X-axis (Core Competencies): Service Focus Ratio + Portfolio Depth + Quality + Experience
2
Y-axis (360-Performance): Client Reviews + Market Presence + Goodfirms Score
3
Missing signals are excluded from a firm's score, not substituted with defaults - weights redistribute across remaining inputs
4
Recency decay over the last 18 months keeps stale reviews from dominating
5
Eligibility floor: ≥ 1 published review in this category scope

Found your target region?

Browse all firms in your chosen country - or let us hand-pick matches based on your project, budget, and time-zone preference.

Get matched firms

Cities with the best Value Score for blockchain development hiring.

Ranked by a composite score blending firm count (supply), average rating (quality), and median hourly rate (cost). Affordability is weighted highest (50%), so this list surfaces actually affordable destinations rather than just-big markets.

Budget leader
Seattle · $0-24/hr

1 firms in this tier - more than any other city, averaging 5.0 ★. Top picks: Probey Services.

Loading heatmap…
Cell intensity (firm density):
Low
High
Best Value marks the densest, highest-rated, most-affordable cell per row

Top 9 recommended companies by Value Score.

Ranked across all heatmap cells - each blends a low hourly rate, a strong rating, and sufficient review volume.

1
Probey Services
5.0122 reviews
92.4VALUE
United States< $25/hr250 - 999
✓ Best Value
2
Chop Dawg
5.0171 reviews
90.3VALUE
United States$25 - $49/hr50 - 249
✓ Best Value
3
Appsters
4.913 reviews
81.9VALUE
United States$25 - $49/hr250 - 999
✓ Best Value
4
Raft
5.02 reviews
78.9VALUE
United States$25 - $49/hr50 - 249
✓ Best Value
5
Soft Galaxy
62.7VALUE
United States$25 - $49/hr10 - 49
6
DevFactori
62.7VALUE
United States$25 - $49/hr2 - 9
7
GenUI
62.7VALUE
United States$25 - $49/hr10 - 49
8
DEV.co
62.7VALUE
United States$25 - $49/hr10 - 49
9
VirtualITme
28.8VALUE
United States$100 - $149/hr2 - 9

How the heatmap is built

Every cell in the grid above is the count of firms in (place × hourly-rate tier). Firms are placed by their published hourly rate; those without a disclosed rate are not plotted.

Top company names per cell are surfaced by Value Score - a weighted blend of affordability (50%) + rating (35%) + review volume (15%).

The "Best" ribbon marks the cell in each row where firm density, ratings, and affordability line up best - the densest, highest-quality combination.

Read the full methodology
Value Score · per firm
ValueScore = 0.50 × Affordability
+ 0.35 × Rating
+ 0.15 × Review Volume
// All sub-scores normalized 0-100
// Affordability = (1 - rate/$200) × 100
// Rating = (rating - 3) / 2 × 100
// Volume = log10(reviews+1)/log10(200) × 100

Found your target region?

Browse all blockchain development firms in your chosen country - or let our AI hand-pick 3 matches based on your project, budget, and time-zone preference.

Get 3 AI-Matched Firms