Best Synthetic Data AI Tools

5 tools compared · 2026

5 synthetic data startups tracked, with the largest concentration in US. Total tracked funding: $14.3B.

All (5) By country Top ranked By funding

Tracked

Total Raised

$14.3B

Countries

Active Deals

Top by score

View all 5 →

Scale AI San Francisco, US $14.3B

Synthesized London, GB $20M

MOSTLY AI — —

Tonic.ai — —

NVIDIA Synthetic Data Generation for Agentic AI Santa Clara, US —

Top countries

By startup count

US 2
GB 1

Stage breakdown

Latest round type

Strategic 1
Series A 1

Top investors backing Synthetic Data

Recent rounds in Synthetic Data

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Date	Startup	Round	Amount
Sep 2025	Synthesized	Series A	$20M
Jun 2025	Scale AI	Strategic	$14.3B

All Synthetic Data startups

Page 1

Scale AI

Verified

US est. 2016

Data labeling and AI infrastructure platform powering frontier models for enterprises and governments.

Synthesized

GB est. 2020

AI that automates software testing and test-data generation for the AI era

MOSTLY AI

Unlock the power of data with a platform for secure access, high-quality synthetic data generation, and seamless data analysis.

Tonic.ai

Unblock AI training, development, and testing workflows with safe, realistic synthetic data from your production patterns or from scratch.

NVIDIA Synthetic Data Generation for Agentic AI

Accelerate the development of agentic workflows with high-quality, domain-specific synthetic data.