Ona Therapeutics

Ona Therapeutics develops antibody-drug conjugates (ADCs) and antibody-based therapies.

Health and bio

Latest funding

$86.6M Series B+ · October 5, 2026

Led by Columbus Venture Partners · Source: irbbarcelona.org

Total raised: $120.52M across 2 sourced rounds

All 2 rounds ↓

Website: ona-therapeutics.com.

X: @OnaTherapeutics · 401 followers.

LinkedIn: ona-therapeutics.

Category: Health and bio.

Sectors: Biotechnology, Health Care, Life Science, Therapeutics.

Stage: Series B+.

Based in: Barcelona, Spain.

Founded: 2019.

Total raised: $120.52M in 2 sourced rounds.

Last round: Oct 5, 2026 · 41 days ago.

Headcount: 11–50 employees.

On Recent Funding since: Sep 29, 2026.

Signals

X account@OnaTherapeutics · created Jul 15, 2019 (7 years old) · 401 followers

Website registeredMar 26, 2019 (7 years old)

About Ona Therapeutics

It focuses on identifying novel therapeutic targets by studying the molecular characteristics of refractory cancers. The company aims to provide new treatments for patients with advanced cancer who have limited options.

TIMELINE · MONEY RAISED

Ona Therapeutics | 448 days from website to first raise on record

@OnaTherapeutics·Raised $121M in 2 sourced rounds·2 signals before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Oct 5, 2026	Series B+	$86.6M	CColumbus Venture Partners	irbbarcelona.org
Jun 16, 2020	Series A	$33.92M	—	prnewswire.com

Timeline

July 15, 2019
X account created
March 26, 2019
Website created

Founders and team

SA
Salvador Aznar Benitah scientific co-founder

@SalvadorAznar3 · LinkedIn · Founder profile · source: ona-therapeutics.com
VV
Valerie Vanhooren Co-founder and Chief Executive Officer

@valerievh001 · LinkedIn · Founder profile · source: ona-therapeutics.com
JM
Joel Mairet Director
JA
Jutta Amersdorffer Chief Medical Officer

Investors

Companies like Ona Therapeutics

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CCatalYm$150M Series B+ · Jul 2024
AAdcytherixSeries A · Oct 2025
PPhrontline Biopharma$40M Series A · Nov 2026

Other companies backed by Columbus Venture Partners

DDeepull$57M Series B+ · Apr 2025

Columbus Venture Partners portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/ona-therapeutics (get a free API key).