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Top Seattle, WA Blockchain Companies (33)

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Blockchain • Fintech • Financial Services • Cryptocurrency
190 Employees

TBD is Block’s business unit that’s building an open source developer platform to unlock the next wave of innovation in financial services. TBD embraces the open and permissionless nature of cryptocurrency and blockchain technologies. Join us in building the future and making the financial system accessible for all.

Blockchain • Fintech • Mobile • Payments • Software • Financial Services
Seattle, Washington, USA
3,500 Employees

Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic app, bringing a better way to send, spend, invest, borrow and save to our millions of monthly active users. With a mission to redefine the world's relationship with money by making it more relatable, instantly available and universally accessible.

Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Seattle, Washington, USA
12,000 Employees

Block, Inc. (NYSE: SQ) is a global technology company with a focus on financial services. Made up of Square, Cash App, Spiral, TIDAL, and TBD, we build tools to help more people access the economy. Square helps sellers run and grow their businesses with its integrated ecosystem of commerce solutions, business software, and banking services. With Cash App, anyone can easily send, spend, or invest their money in stocks or Bitcoin. Spiral (formerly Square Crypto) builds and funds free, open-source Bitcoin projects. Artists use TIDAL to help them succeed as entrepreneurs and connect more deeply with fans. TBD is building an open developer platform to make it easier to access Bitcoin and other blockchain technologies without having to go through an institution.

20 Employees

Dragonchain simplifies the integration of real business applications on a blockchain and provides features such as easy integration, protection of business data and operations, currency agnosticism, and multi-currency support. The company also provides professional services to build-out development and successful tokenization ecosystems with long t

3 Employees

Control of large quantities of low cost power and high-speed fiber optic connectivity, along with the expertise to build and manage data spaces, has fueled our rapid growth. Leveraging these assets, we have proven our ability to deploy and operate significant blockchain processing capacity. We specialize in global bitcoin blockchain processing capa


We exist to create a single source of truth about where your food comes from, how it got to you, and what happened to it along the way.

Blockchain • Greentech • Other • Retail • Social Impact
Seattle, Washington, USA
17 Employees

Nori is a carbon removal marketplace. We're on a mission to reverse climate change by making it easy to fund projects removing carbon dioxide from the atmosphere. We work with businesses and consumers to help them meet their climate goals through buying carbon removals. We work directly with farmers to get paid for their carbon removal projects on our marketplace. We've started with regenerative agriculture projects that store carbon in the soil and will expand to other methodologies.


The Atonomi Network is a blockchain-based security solution to protect the Internet of Things and enable secure device-to-device autonomous transactions. The Atonomi Security Protocol validates device identity, tracks device reputation, and provides immutable blockchain ledgering of all transactions.


Nodesmith is bringing the benefits of blockchain technology to the masses, by empowering developers to build fast and scalable applications

Blockchain • Logistics • 3PL: Third Party Logistics
90,843 Employees

DHL is the leading global brand in the logistics industry. Our divisions offer an unrivalled portfolio of logistics services ranging from national and international parcel delivery, e-commerce shipping and fulfillment solutions, international express, road, air and ocean transport to industrial supply chain management. With about 380,000 employees in more than 220 countries and territories worldwide, DHL connects people and businesses securely and reliably, enabling global sustainable trade flows. With specialized solutions for growth markets and industries including technology, life sciences and healthcare, engineering, manufacturing & energy, auto-mobility and retail, DHL is decisively positioned as “The logistics company for the world”. DHL is part of Deutsche Post DHL Group.

31 Employees

The RChain Cooperative is a open-source technology Cooperative who has formed in order to continually design and develop the RChain Platform, a next generation blockchain, designed from the work of Greg Meredith and Mike Stay(among others) on using mobile process calculi for programming the blockchain.

25 Employees

The SHOP CO-OP, the first brand and shopper consortium, is a ethereum based blockchain protocol that supports the free exchange of data across the retail supply chain, spanning suppliers, manufacturers, distributors, retailers, shoppers and logistics providers; the network of parties that make, move, and sell products shoppers enjoy. With the SHOP

10 Employees

ArcBlock, the world’s first blockchain ecosystem for building and deploying decentralized applications.

Blockchain • Fintech • Payments • Software
25 Employees

Transparent Systems is transforming financial infrastructure with on-demand settlement solutions. Leveraging cryptographically secured distributed networks, we’re reducing the friction in making and receiving payments. Our goal is to create a more inclusive economy that empowers your business and your money.

Agency • Blockchain • Internet of Things • Software

ITExpertsIndya has been providing services like Custom web application development, offshore Software Development, E-commerce and CMS development, web design and multimedia and (SEO) Internet marketing from the past 10 years.


DigitalTown delivers innovative web and mobile solutions to solve municipal challenges. We create new revenue streams, new efficiencies and advance the safety of citizens and communities. Our Smart City platform empowers cities to be more efficient, and more accessible while empowering residents and visitors to be more informed.

Blockchain • Cloud • Software • Database
Fully Remote

Vendia is the only real-time data cloud company that enables customers to free critical data stuck in traditional applications, data stores, cloud service providers, and other silos. We provide the undifferentiated services and infrastructure necessary to share data safely and securely. By combining serverless blockchains, ledgers, access control, smart APIs and more, Vendia delivers governance and compliance with industry standards, allowing companies to focus on what matters most: their customer experience. Our customers span sectors as diverse as Automotive, Food & Beverage, Travel, and Nonprofits. They use Vendia to solve their most challenging data sharing and data integration problems: real-time supply chain and logistics tracking, settlement of physical and digital contracts, consolidating the data needed to drive AI/ML inferencing, and more. Our employees helped create industry-changing services like AWS Lambda… and we’re continuing that tradition at Vendia, with disruptive, innovative technologies that combine the best of Serverless, distributed ledgers, and massively scaled cloud-based services that deliver business value to our customers. Vendia is short for ‘Venn Diagram’ our mission is to make data sharing as easy as 2 circles coming together to better each other. We were founded by Dr. Tim Wagner, the father of Serverless Computing, GM for AWS Lambda; and VP of Eng at Coinbase; and, Shruthi Rao who founded & ran the Blockchain category for AWS, and launched Amazon Managed Blockchain and Quantum Ledger Database (QLDB). We are a Series B startup based in SF, Venture funded by Tier 1 VCs, we have raised over $50M in funding to date. Our recent $30M Series B investment has enabled us to accelerate our vision of multi-party data sharing, and we are growing rapidly. We embrace remote workers but also love interactive development.

Artificial Intelligence • Big Data • Blockchain • Cloud
12 Employees

Making technology easier and more fun to use. Why use apps that are built for Windows or Mac? We build a place for all your data in the cloud. Secure, private and safe, all your data is at your fingertips with auto-AI analytics and graphs. Don't want to geek out like a Data Scientist, then just enjoy collecting and sharing your work! Knaxim.com

Artificial Intelligence • Blockchain • Information Technology

Core Scientific is a leader in Blockchain and Artificial Intelligence hosting, transaction processing and application development.

Blockchain • Fintech • Financial Services
44 Employees

Kava Labs is focused on democratizing financial services and making them openly accessible to anyone, anywhere in the world. We started out by building the Kava blockchain, a foundational platform designed to provide the most safe, secure, and reliable experience for accessing Decentralized Financial(DeFi) apps and services. Today that platform manages over $1B in assets on behalf of users and is growing rapidly. We are a remote-first, globally distributed team that values first principle thinking, experimentation, and learning to ensure long-term success. We are not dogmatic in our approach, but we are relentless in our pursuit to create impactful technology for the future. We have a diverse set of backgrounds, skills, and culture but we’re all united in our passion about building new open financial infrastructure — together, so that our efforts will make a real impact and create lasting change in the world.