United States · 
Who invested in Arbsource?
Arbsource's investors include US Department of Energy, National Science Foundation and MassChallenge.
20132014
$150KGrant$150KGrantUnited States · Funded startup
Who invested in Arbsource
2 rounds we have observed, with the 3 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
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Funding summaryUpdated 15 Nov 2026
$300Kraised across 2 rounds since 2012, from 2 sources
$150KGrant$150KGrant
- Latest round
- Grant, $150KDec 2014
- Investors
- 3
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Grant, $150K Jun 2012
- Biggest round
- $150K Grant · Dec 2014
- Between rounds
- 2.5 years from the last two
The rounds
- Dec 2014Grant$150K2 new1 returning
From a historical funding record
- Jun 2012
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Arbsource
How much has Arbsource raised?
Arbsource has raised $300K across 2 rounds since 2012.
When did Arbsource last raise?
Arbsource's most recent round was a Grant of $150K in Dec 2014.
What was Arbsource's biggest round?
Its most recent round, $150K in Dec 2014, is also its largest on record.
Who backed Arbsource first?
Arbsource's first round on record, in Jun 2012, was backed by US Department of Energy.
What stage is Arbsource at?
Arbsource's latest named round is a Grant, in Dec 2014.
Where is Arbsource based?
Arbsource is based in the United States.
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