United States · 
Who invested in Petra Labs?
Petra Labs's investors include Work-Bench, Afore Capital and Pathlight. Work-Bench led its latest round.
United States · Seed startup
Who invested in Petra Labs
One round we have observed, with the 3 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 3 months ago
Follow Petra Labs and see its new rounds in your feed. Start following
Funding summaryUpdated 5 Nov 2026
$5.2Mraised across 1 round since 2026, from 1 source
- Latest round
- Seed, $5.2MJul 2026
- Led by
- Work-Bench
- Investors
- 3 (1 led)
The rounds
- Jul 2026
Everyone who backed them
Missing a round, or an investor who was in one? Tell us.
Quick answers about Petra Labs
How much has Petra Labs raised?
Petra Labs has raised $5.2M across 1 round since 2026.
When did Petra Labs last raise?
Petra Labs's most recent round was a Seed of $5.2M in Jul 2026, led by Work-Bench.
What was Petra Labs's biggest round?
Its most recent round, $5.2M in Jul 2026, is also its largest on record.
Who backed Petra Labs first?
Petra Labs's first round on record, in Jul 2026, was backed by Work-Bench, Afore Capital and Pathlight.
What stage is Petra Labs at?
Petra Labs's latest named round is a Seed, in Jul 2026.
Where is Petra Labs based?
Petra Labs is based in the United States.
Who led Petra Labs's rounds?
Work-Bench led the Seed in 2026.
Companies like Petra Labs
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.