United States · 
Who invested in PeerJ?
PeerJ's investors include O'Reilly AlphaTech Ventures.
2013
$950KVenture$950KSeed
United States · Seed startup
Who invested in PeerJ
2 rounds we have observed, with the one investor 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
$1.9Mraised across 2 rounds since 2012, from 2 sources
$950KVenture$950KSeed
- Latest round
- Seed, $950KJun 2012
- Investors
- 1
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Venture, $950K Apr 2012
- Biggest round
- $950K Seed · Jun 2012
- Between rounds
- 2 months from the last two
The rounds
- Jun 2012
- Apr 2012
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about PeerJ
How much has PeerJ raised?
PeerJ has raised $1.9M across 2 rounds since 2012.
When did PeerJ last raise?
PeerJ's most recent round was a Seed of $950K in Jun 2012.
What was PeerJ's biggest round?
Its most recent round, $950K in Jun 2012, is also its largest on record.
Who backed PeerJ first?
PeerJ's first round on record, in Apr 2012, was backed by O'Reilly AlphaTech Ventures.
What stage is PeerJ at?
PeerJ's latest named round is a Seed, in Jun 2012.
Where is PeerJ based?
PeerJ is based in the United States.
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