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About us

A new business model for the decentralized internet.

We are TeamGreymass! Our world-class block production infrastructure ensures that your data is always secure, and available when you need it. Block rewards not only power our infrastructure, but also fuel the development of decentralized applications, services, and frameworks. These projects enrich blockchain ecosystems and deepen the engagement of creators and regular users alike.

We appreciate your consideration when selecting block producers to support with your vote.


The values that guide our efforts make the blockchain more compelling to new users, businesses and outside investors. Vote for Greymass to secure your cryptocurrency investment.


Our infrastructure is built around our enterprise-grade T3 data center in Michigan, augmented by backup data centers in Vancouver and Kentucky. In addition to maximizing uptime, we’re pursuing global node coverage for further resilience to regional outages, as well as localized attacks.


We enhance the blockchain experience for all users with cryptocurrency wallets, block explorers, and governance tools and we empower creators with software frameworks, content creation tools, and abuse prevention services. The value these projects create drives the network effect.


We believe in democratization of blockchain policy and that fair governance improves market capitalization. We empower token-holders to directly participate in blockchain governance and represent their interests when they can’t. We open source our software and welcome security audits.


In addition to years of combined block production experience with Steem, Golos, Decent, Peerplays, Muse, Karma, and now EOS, our team members have led a number of projects exploring the protection, utility, and social implications of the blockchain.

EOS Projects

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Block Producer Voting & Light Wallet (Desktop Application)

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STEEM Projects


Steem cleaners logo


Abuse Prevention (Service)

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Cheetah logo


Fraud Detection AI (Service)

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Guard logo


Fraud Prevention AI (Service)

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Light Wallet (Desktop Application)

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Block Explorer (Web Application)

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Transaction Streaming (Framework)

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Message Board Platform (Web Application)

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Website Creation Engine (Framework)

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Curation Management (Web Application)

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Aaron profile

Aaron Cox

Full Stack & Blockchain Developer

Aaron is a veteran web developer with over 20 years experience, specializing in publishing platforms, social/community engines, and data mining. Aaron has released all his efforts open-source, merged his past experiences with new Blockchain protocols, and has previously worked developing a crowd-sourced review platform and as the lead web developer for a number of tech companies, such as NCSOFT.

Aaron is incredibly fascinated by the impact Blockchain technologies will have on the Internet itself. Since devoting himself full-time to exploring this tech he has built a number of apps including wallets like Vessel, a number of block explorers, and prototypes for end users platforms such as chainBB and Reprint. Aaron is currently a top elected delegate as @jesta on the Steem, Decent, Muse, and Karma blockchains.

Scott profile

Scott Sallinen

Research Scientist

Scott is a Computer Engineering Ph.D. Candidate at the University of British Columbia, with research areas of High Performance Computing and Distributed Systems, Graph Processing, Machine Learning, and Blockchain technologies. Scott has published multiple peer-reviewed papers within these domains in top-tier research conferences such as Supercomputing, and has previously worked in the research divisions of top technology companies such as Intel and Facebook.

Scott has a passion for the application of Blockchain technologies in the real world. He has built and led the Steemcleaners and Cheetah projects on the Steem blockchain for several years, in an effort to address and reduce fraud and phishing on the social media platform. Scott also represents a top elected delegate as @anyx on the Steem blockchain.


Below is our conservative roadmap for 2018, focused exclusively on supporting our newest chain, EOS. This is the minimum commitment we’re making to the community and if all goes well, we plan to add much more to it.

  • Completed

    Q2 2018

    Infrastructure Block Production
    Redundant/secure block production servers with failover and monitoring.

    Infrastructure Public
    Publicly available API and P2P servers regionally distributed.

    "Desktop App" (Unnamed)
    Initial usage for voting for block producers

  • Q3 2018

    Infrastructure Block Production
    Open-sourcing of our tools and additional redundancy through supplemental global deployments.

    "Desktop App" (Unnamed)
    Advanced wallet features, such as deeper governance interactions and smart contract integrations.
    Basic block explorer + APIs.

  • Q4 2018

    Infrastructure Public
    Publicly available API and P2P servers globally.

    "Desktop App" (Unnamed)
    Complete integration of general GUI for cli (cleos) commands.
    "Smart Explorer" allowing various views into different smart contracts.

  • Q4 2019

    Supercomputing 2019
    Inclusion of EOS as a prime dataset for graph processing in conference (target of poster or paper).