# BlockSpaces: Information technology & services, Tampa, United States

> BlockSpaces: BlockSpaces' ARCC (Auto Reconciled Collateral Contracts) enables secure, programmable execution of Bitcoin-backed loans, derivatives, and other...

Source: https://millionrounds.com/startup/blockspaces (Millionrounds; every figure on the page links to its filing or article)

United States · [Information technology & services startup](https://millionrounds.com/companies)

# BlockSpaces

BlockSpaces' ARCC (Auto Reconciled Collateral Contracts) enables secure, programmable execution of Bitcoin-backed loans, derivatives, and other high-volume contracts.

Funding reported Last round: Seed

Information technology & services Tampa, United States

Company summary

- **Founded:** 2017 9 years old
- **Team:** 6 1 to 10 people
- **Funding reported:** $11M in dollars
- **Last round:** Seed May 2025

How sure we are

- ✓ **Listed** We know it exists and what it does
- 2 **Funding reported** A company dataset reports a raise
- 3 **Observed** A filing or a dated announcement confirms a round

No round for BlockSpaces has been confirmed by a filing or an announcement yet, so nothing here counts toward an investor's record. [How we decide](https://millionrounds.com/methodology)

## About BlockSpaces

BlockSpaces' ARCC (Auto Reconciled Collateral Contracts) enables secure, programmable execution of Bitcoin-backed loans, derivatives, and other high-volume contracts.

To learn more, visit blockspaces.com.

## What company datasets say BlockSpaces raised

Funding, as reported

Reported in all **$11M** in dollars

Rounds **4**

Last round **Seed**

Last round size **$2.0M**

Last round date **May 2025**

Investors listed **5**

SEC Form D **$8.2M sold, 5 filings, last Dec 2024**

## On 2 portfolio pages

Investors who name them

- [Leadout Capital](https://millionrounds.com/fund/leadout-capital)
- [Florida Funders](https://millionrounds.com/fund/florida-funders)

Each firm lists BlockSpaces on its own website. That is the firm's claim, a weaker thing than a round we watched, but a named source.

## The company, in detail

What they build

Known for

high-volume transaction processing blockchain services programmable risk controls bitcoin market liquidity market infrastructure posttrade settlement regulatory compliance support blockspace futures bitcoinbacked contracts bitcoin bond issuance middleware integration automated execution intraday margin settlement information technology & services programmable bitcoin layer 2 smart channels

Built with from their website

Google Tag Manager Amazon CloudFront Hotjar Bitcoin Typed.js YouTube Cloudflare DNS Google Workspace CloudFlare Viewport Meta

+8 more

Google Analytics HTTP/3 Hubspot Google Analytics 4 Amazon AWS Webflow Hosting Microsoft Exchange Online Apple Business Manager

- **Sector:** Information technology & services
- **Industry code:** NAICS 5231, 513210, 541512, SIC 6211, 7372, 7371
- **Region:** Florida
- **Part of:** CloudFit Software

## Information technology & services in United States

Startups like it

- [**Databricks** San Francisco · founded 2013 *Raised*](https://millionrounds.com/company/databricks)
- [**Waymo** Mountain View · founded 2009 *Raised*](https://millionrounds.com/company/waymo)
- [**Crusoe** Denver · founded 2018 *Raised*](https://millionrounds.com/company/crusoe)
- [**Cursor** San Francisco · founded 2017 *Raised*](https://millionrounds.com/company/cursor)
- [**Thinking Machines Lab** San Francisco *Raised*](https://millionrounds.com/company/thinking-machines-lab)
- [**Cognition** San Francisco *Raised*](https://millionrounds.com/company/cognition)
- [**Polymarket** New York · founded 2020 *Raised*](https://millionrounds.com/company/polymarket)
- [**Harvey** San Francisco · founded 2022 *Raised*](https://millionrounds.com/company/harvey)

## Is this your company?

Add your raise, your deck and your story, and put BlockSpaces in front of investors. Or tell us what we have wrong.

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