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Web3 Graveyard
InsolventInstitutional blockchain softwareAssembly2013–2022

Symbiont

Its software carried Vanguard’s index data

A company building permissioned blockchain systems for financial institutions.

Capital raised (announced)
Estimated

Funding

RoundDateAnnouncedInvestors
Series B23 January 2019
Earlier seed and Series A funding combinedUnknownNot disclosed

Announced is what was said at the time. Cash actually received is rarely disclosed and is not assumed to match.

People

NameRolePeriodNowLast checked
Mark Smith—Not establishedOct 2026

How it ended

CoinDesk reported a Chapter 11 filing. Ledger Insights later reported that a rescue attempt failed and the company’s blockchain intellectual property was offered for sale.

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Sources

3 sources behind this page.

  1. 1Nasdaq leads $20 million funding round for Symbiont · CoinDesk · Jan 2019
  2. 2Symbiont.io files for Chapter 11 · CoinDesk · Dec 2022
  3. 3Bankrupt Symbiont blockchain IP is up for sale · Ledger Insights · May 2023

Every figure above is clickable and opens the sources behind it. Copies were stored when each source was read, so a citation still resolves after the page it came from is gone.