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Our Tokenized Securities Offering is currently available to residents of the following countries: Australia, Canada, France, Germany, Israel, Russia, United Kingdom, United States

Siafunds Tokenized Securities Offering (TSO)

Nebulous, Inc. is offering 750 Siafunds to qualified investors in an auction expected to take place in March. Download the Private Placement Memorandum for more details.

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Sia is reinventing cloud storage. Our technology connects users who need file storage with hosts worldwide offering underutilized hard drive capacity. Blockchain technology secures their data and enables improved economics for users and hosts.

The Sia blockchain allows this marketplace to run without an intermediary. Sia secures storage transactions with smart contracts, creating a more reliable and affordable offering when compared to traditional cloud providers. No one person or organization can censor or deny access to data—not miners, not developers, nor any government. We believe Sia’s distributed, decentralized storage technology is stronger, more secure, more efficient, and more equitable for the entire ecosystem.

We believe that neither individuals nor institutions should be beholden to large corporations. Sia was created to promote and safeguard users’ freedoms. It’s our attempt to bring decentralized storage built on blockchain technology to the mainstream without sacrificing price or performance.

Our long term goal is for Sia to become the backbone storage layer of the Internet.

Nebulous, Inc. was established in 2014 and launched the Sia Storage Platform in 2015. Based in Boston, Nebulous is funded by Raptor Group, First Star Ventures, Fenbushi Capital and INBlockchain.


Blockchain technology is demanding new, innovative business models. When designing the Sia network, we worked to ensure that incentives are focused on long-term product development and growth.

This effort led us to build two complementary cryptocurrencies: Siacoin and Siafunds. Siacoin is a utility token that allows users to buy and sell storage space on the Sia network. It was never used for fundraising, and is mined via proof-of-work on ASICs to ensure security and decentralization.

Siafunds pay out a real-time transaction fee from all storage-related payments on the network. This means that, if you hold one of the 10,000 Siafunds in existence, you receive a piece of this transaction fee as users pay for storage space.The transaction fee is up to 20% of your Siafund purchase value per month and will be incremented.

Because Siafunds only generate revenue when users pay for storage, holders are incentivized to take a long-term view and directly contribute to product development and growth.


Up to 750 Siafunds will be made available to qualified investors through a modified Dutch auction, which is expected to take place in March. For information about the auction, click the Private Placement Memorandum button above. To determine if you are a qualified investor, and to register to participate in the auction, click on the Register button above.


David Vorick

CEO, Cofounder, Core DeveloperGithub

I like knowing that our technology is out there improving lives and changing the way people think about the world. I hope that what we build is inspirational to others; the desire to inspire is, in itself, an inspiration for me.

Luke Champine

Cofounder, Core DeveloperGithub

Sia captures that rebellious hacker spirit that spurns the current paradigm and, instead, builds something novel, powerful, esoteric. Code is eating the world; blockchains are just a continuation of that trend, extending it into the world of finance.

Chris Schinnerl

Core DeveloperGithub

My dream is a world of distributed storage with no downtime, no companies spying on your data, and no massive cloud leaks – where storage is faster, safer, and cheaper.

Zach Herbert

VP of OperationsLinkedIn

We are working to make Sia provide the best of all worlds – inexpensive, private, and ultra-redundant storage in users’ control. At Sia, we are constantly thinking long-term, putting product ahead of marketing, and building a strong technical foundation for future success.

Steve Funk

Head of SupportLinkedIn

Sia has a team that truly cares about the experience, and a passionate community that inspires us to do our best.


Beyond their technical skills, what attracted us to Sia is the team’s commitment to decentralization and a value proposition that aligns investors' economic goals with developers’ interests. Josh Langsam Managing Director, Raptor Capital Management








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Your country of residence is not currently on our whitelist, so for now you are unable to participate in the offering. If you would like to read the United States version of the Private Placement Memorandum for informational purposes, follow the link below.
If you want to be notified if or when the offering is available in your country of residence, please register from our homepage.
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