Outbrain Funding: $389M Raised, IPO (2021)

Outbrain is based in New York, NY. It has raised $389M in total funding. Latest round: IPO. Backed by Seth Klarman, IAN Lane, HarbourVest Partners.

Outbrain funding overview

Outbrain is based in New York, NY. Outbrain has raised $389M in total disclosed funding. That places its disclosed total in the $250M–$1B range. Its most recent disclosed round is an IPO announced in July 2021. The round record for Outbrain runs through 2021; nothing later has been disclosed. Investors on record include Seth Klarman, IAN Lane, HarbourVest Partners. 3 distinct backers are named across the disclosed rounds.

Outbrain at a glance

Total raised
$389M
Latest round
IPO
Latest round date
July 2021
Headquarters
New York, NY
Notable investors
Seth Klarman, IAN Lane, HarbourVest Partners

Frequently asked about Outbrain funding

How much has Outbrain raised?
Outbrain has raised $389M in total disclosed funding across the rounds on record.
Who has invested in Outbrain?
Seth Klarman, IAN Lane, HarbourVest Partners are named among the investors backing Outbrain.
What was the latest Outbrain funding round?
The most recent disclosed round is an IPO, announced in July 2021.
Where is Outbrain based?
Outbrain is based in New York, NY.
When did Outbrain last raise?
The last disclosed Outbrain round closed in July 2021 at IPO.

We update the Outbrain record whenever a new round is filed or announced, so the totals above track the public record rather than estimates. Related companies in New York and their backers are listed below.

Companies related to Outbrain (18)

Browse related funding lists (6)

Company funding database · Investor directory · Founder database · Mega-rounds 2026