Company · AI & Data

Gretel

gretel.co ↗ ·San Diego ·Series B

Gretel (formerly Gretel.ai) was a San Diego-based multimodal synthetic data platform that let developers generate privacy-preserving, artificial datasets to train and test AI/ML models without exposing real sensitive data. It raised $65.5M across seed, Series A, and Series B rounds before being acquired by NVIDIA in March 2025 for a reported $320M+; the standalone product is now discontinued, with the technology folded into NVIDIA NeMo Data Designer and Safe Synthesizer.

Founded

2019

Founders

News

Rounds

Investors

SectorsAI & Data, Cybersecurity, Enterprise Software Start-up MapAI & Data › AI data infrastructure

Profile updated 1 Aug 2026

Founders

Alexander Watson

Co-founder & Chief Product Officer

Ali Golshan

Co-founder & CEO

John Myers

Co-founder & CTO

Laszlo Bock

Co-founder & Chairman

Global models 5

Datagen

Israel · datagen.tech ↗

Synthetic data generation platform (focused on computer vision) for training AI/ML models, the same core business model as Gretel.

$72MComparable

Tonic.ai

United States · www.tonic.ai ↗

AI-generated synthetic tabular/test data platform for engineering and analytics teams, directly comparable to Gretel's synthetic data tooling.

$45MComparable

MOSTLY AI

Austria · mostly.ai ↗

Generative AI platform producing synthetic structured/tabular data for privacy-safe model training, closely matching Gretel's product.

$25MComparable

Synthesis AI

United States · synthesis.ai ↗

Synthetic data generation platform for computer vision and AI training, same synthetic-data-as-a-service model.

$24MComparable

Hazy

United Kingdom · hazy.com ↗

Synthetic data generation platform for privacy-safe data sharing and AI training, a direct European peer to Gretel (acquired by Anonos in 2024).

$15.8MComparable

Investors 9

Anthos Capital

anthoscapital.com ↗

Investor United States

Greylock

Investor United States

Moonshots Capital

moonshotscapital.com ↗

Investor United States

Section 32 (S32)

s32.com ↗

Investor United States

Village Global

www.villageglobal.vc ↗

Investor United States

Funding rounds 5

Seed · €630K

Barcelona-based Gretel raised roughly €630K (about $700K) for its real-time anomaly detection software for digital marketing teams, which fl…

2023-04-14

Pre-seed · $150K

Gretel, founded in 2022 by Martí Gou and Alex Hughes to build software that centralises a company's internal information into a social-media…

2022-05-20

Series B · $50M

Gretel.ai closed a $50M Series B led by Anthos Capital, with Section 32 joining and existing backers Greylock and Moonshots Capital followin…

2021-10-07

Series A · $12M

Gretel announced a $12M Series A led by Greylock Partners, with Greylock partner Sridhar Ramaswamy backing the company, taking total funding…

2020-11-16

Seed · $3.5M

Gretel came out of stealth with a $3.5M seed round from Moonshots Capital, Greylock Partners, Village Global and a group of strategic angel …

2020-02-20

News & media 3

Published	Article
2023-07-07	Intelectium success story: Gretel obtains a loan of 180,000€ through the Enisa Entrepreneurs line ↗ Intelectium
2023-04-13	Barcelona-based Gretel bags over €634k for its digital marketing software ↗ EU-Startups
2022-09-30	Martí Gou (BBA '20 / MSc '21), co-founder and CEO of Gretel: "The entrepreneurial spirit is something that you carry inside you" ↗ ESADE Alumni