What MOSTLY AI does

MOSTLY AI is an Austria-based (Vienna) synthetic data company founded in 2017, now operating under Syntho following the acquisition of its brand assets. It develops a GPU-powered, generative AI platform that creates privacy-safe synthetic datasets from structured, time-series, text, and geospatial source data, enabling organizations to share, analyze, and train AI models on data without exposing personal information. Its core technology is the proprietary TabularARGN model architecture, complemented by a patent-pending geo data synthesis method and an AI-native assistant workspace that orchestrates frontier language models (GPT-5, Claude, Gemini) alongside persistent Python sessions. The platform is delivered as a cloud SaaS product, on-premises/air-gapped enterprise deployments, and an Apache v2 open-source SDK (Synthetic Data SDK) on PyPI and GitHub, with native connectors to Snowflake, BigQuery, Databricks, AWS S3, Google Cloud Storage, Azure Blob Storage, and major relational databases.

MOSTLY AI sells to enterprise data teams and regulated verticals — financial services (JPMorgan, Erste Group, Swiss Post), insurance and healthcare (Anthem, Michigan Medicine), telecommunications (Telefónica), government and research (European Commission JRC, U.S. DHS S&T), and major data platforms (AWS, Databricks). Pricing is quote-based with a credit-based usage model on the cloud platform, a free tier for the first 100,000 rows, and direct enterprise sales for on-premises or air-gapped deployments; the open-source SDK functions as a freemium funnel. The company holds SOC 2 Type II and ISO 27001 certifications and claims compliance with GDPR, CCPA/CPRA, HIPAA, PDPA, and APPI. It has raised roughly $31 million across three funding rounds through a $25 million Series B in January 2022, led by Molten Ventures with Citi Ventures, 42CAP, and Earlybird.

The company's go-to-market blends product-led growth through the open-source SDK and self-serve cloud platform with enterprise field sales and strategic channel partnerships, notably an October 2024 embedding within the Databricks Data Intelligence Platform and a co-marketing relationship with AWS. Its product surface has expanded beyond synthetic data into agentic AI capabilities via the AI Assistant, behavioral simulation (Simulated Data), LLM-powered mock data, and a privacy-preserving clinical data platform launched in March 2026. Reported outcomes include Swiss Post increasing data access from 11% to 100% of its customer base, Michigan Medicine improving AI model accuracy from 68% to 96% on synthetic training data, and the European Commission JRC generating 2 million synthetic cancer patient records from 500,000 real-world records.

Name

MOSTLY AI

Legal name

Syntho

Website

https://mostly.ai

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

MOSTLY AI is a Vienna-based (Austria) synthetic data platform that uses proprietary generative AI (TabularARGN) to create privacy-safe datasets for enterprise data teams in financial services, healthcare, telecommunications, and government, distributed via SaaS, open-source SDK, and Databricks/AWS channel partnerships.

Ownership category

akta.pro rank

Product category

Synthetic Data Generation Platform

NAICS

Software Publishers (513210), Software Publishers (51321), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Custom Computer Programming Services (541511)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

Bias, Fairness & Representativeness Testing for Datasets (HDAAALAK)

akta.pro secondary industries

Responsible AI, Security & Privacy Platforms (Safety, Guardrails, PII) (HDAEANAG), AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), AI/ML Engineering & Model Development Services (BPAEAHAF)

Keywords

• Synthetic data generation
• Privacy-preserving data
• Tabular data synthesis
• Data anonymization platform
• AI training data

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Infrastructure, Operations

Revenue model

1. SaaS Platform Subscription: MOSTLY AI operates primarily as a SaaS platform offering synthetic data generation capabilities on a subscription basis. The platform supports both cloud-based (multi-tenant) and on-premises/private cloud deployment options. Organizations connect to their data within a secure environment, run on their own compute, and generate synthetic data through credit-based usage on the platform. Enterprise organizations get scalable, secure deployment on Kubernetes or OpenShift.
2. Open Source SDK (Community/Lead Generation): The open-source Synthetic Data SDK (Apache v2) is freely available for local use, serving as a lead generation and community-building tool. Local users can export trained generators to the MOSTLY AI cloud platform for sharing, creating a pathway to convert free users to paid platform subscribers.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

MOSTLY AI develops a GPU-powered synthetic data generation platform that produces high-fidelity, privacy-safe artificial datasets for AI/ML training, analytics, and cross-team data sharing. The platform uses a proprietary TabularARGN generative AI architecture to synthesize tabular, text, time-series, and geospatial data with built-in differential privacy, and is complemented by an open-source Python SDK and an AI-native workspace for data analysis.

Product overview

MOSTLY AI operates as a unified Data Intelligence Platform offering a comprehensive portfolio of products for synthetic data generation, data analysis, and simulation. The core offering includes the MOSTLY AI Data Intelligence Platform, the open-source Synthetic Data SDK (Python), the AI Assistant for natural language data interaction, Mock Data generation, Simulated Data for behavioral forecasting, and Real-World Data access. These products work together as a platform-plus-resources architecture: the platform provides the orchestration layer and user interface, the SDK enables programmatic/local access, Generators are the trained AI models at the core, and Synthetic Datasets are the outputs. The platform also offers native connectors to major cloud databases and warehouses (Snowflake, BigQuery, Databricks, PostgreSQL, MySQL, MariaDB, SQL Server, Oracle, AWS S3, GCS, Azure Blob, Apache Hive) for reading and writing data. The company is currently powered by Syntho following a brand acquisition.

Differentiator

Problem solved

Functional benefit

Brands

• MOSTLY AI Data Intelligence Platform: A platform for accessing production data securely, generating high-quality privacy-safe synthetic data, and analyzing and sharing data across teams
• Synthetic Data SDK
• AI Assistant
• Simulated Data
• Mock Data

Products and services

• MOSTLY AI Data Intelligence Platform A comprehensive data intelligence platform that enables enterprise organizations to securely access production data, generate high-quality privacy-safe synthetic data, analyze it, and share it across teams. Supports deployment on Kubernetes or OpenShift for enterprise customers.
• Synthetic Data SDK An open-source Python toolkit (Apache v2 license) for creating high-fidelity, privacy-safe synthetic data locally or connected to the platform. Powered by TabularARGN with built-in differential privacy and support for tabular and textual datasets.
• AI Assistant An AI-native workspace with persistent Python sessions, support for any Python library, access to frontier AI models (GPT-5, Claude, Gemini), and composable context-aware datasets that support team collaboration and shareable artifacts.
• Mock Data LLM-powered mock data generation that creates schema-compliant, multi-table datasets with referential integrity and realistic distributions without using real personal information. Designed for CI/CD pipelines, development, QA, and demos.
• Simulated Data Behavioral simulation capability using generative models trained on historical data to forecast outcomes, model customer journeys, simulate patient recoveries, or predict equipment failures through simple prompts.
• Synthetic Text Privacy-safe artificial text data generation capability for AI training and analytics, supporting fine-tuning of HuggingFace-based language models and LSTM for text synthesis from scratch.
• Privacy-Preserving Clinical Data Platform Healthcare-focused synthetic data platform enabling clinical research and medical AI development while maintaining HIPAA and GDPR compliance.

Quantifiable outcome

• Swiss Post increased data access from 11% to 100% of their customer base with synthetic data maintaining 100% privacy.
• +3 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration13 records

AI capability9 records

Feature7 records

Partnerships

Four partnerships are on record, tiered core, notable and flagship.

• DatabrickscoreTechnology or Integration · 1 October 2024In October 2024, Austria-based MOSTLY AI partnered with Databricks to embed its GenAI-driven synthetic data platform within the Databricks Data Intelligence Platform. This enables financial institutions to create privacy-preserving synthetic datasets for AI analytics and model development directly within the Databricks environment.
• DHS S&T (U.S. Department of Homeland Security Science and Technology Directorate)notableStrategic or Co-development Partner · 1 October 2024The DHS S&T awarded contracts to startups to develop privacy-enhancing synthetic data generation capabilities. MOSTLY AI was among the recipients of these contracts as part of DHS efforts to advance privacy-enhancing technologies for national security applications.
• AWSnotableGTM or Marketing PartnerAWS is a go-to-market and co-marketing partner for MOSTLY AI. AWS AI Strategy Lead Faris Haddad is featured in a customer testimonial on the MOSTLY AI website, highlighting synthetic data's role in breaking down data silos for organizations.
• SynthoflagshipOthersSyntho has acquired the Mostly AI brand assets. For all inquiries related to Mostly AI, including product, partnerships, media, or general questions, contacts are directed to the Syntho team. The MOSTLY AI product continues to operate under Syntho's ownership.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• SAS: Large analytics and data management software vendor with synthetic data capabilities as part of its broader data and AI portfolio. Identified as a market-consolidating player alongside MOSTLY AI and Gretel.
• Informatica: Enterprise data integration and data governance platform with privacy/masking capabilities. Competes in adjacent data privacy and governance territory where MOSTLY AI also sells to compliance-driven buyers.
• Collibra: Enterprise data intelligence and governance platform addressing data privacy, cataloging, and compliance. Competes for the same enterprise data leader budget against MOSTLY AI's Data Intelligence Platform positioning.

Direct peers

• Hazy: Enterprise synthetic data generation platform for financial services. Direct competitor targeting banks and insurers with synthetic tabular data for analytics and ML — overlapping with MOSTLY AI's financial services segment.
• Tonic.ai: Synthetic data platform focused on de-identification and test data management for engineering teams. Targets similar enterprise use cases (safe data sharing, dev/test environments) and is a direct competitor in the synthetic data market.
• YData: Synthetic data and data quality platform offering tabular data generation with a focus on data scientists. Competes in the same synthetic data tooling category with similar SDK-based delivery.
• Gretel.ai: Direct synthetic data competitor offering AI-generated synthetic datasets for developers and enterprises. Acquired by Snowflake in 2024, providing an in-platform alternative that competes head-to-head with MOSTLY AI's offering.
• Syntho: Parent company that acquired the MOSTLY AI brand assets and operates the synthetic data platform under its own brand. Operates the same product portfolio and customer base, making it the closest peer by definition.

Emerging players

• Betterdata: Early-stage synthetic data company focused on privacy-preserving data sharing, particularly in Asia. Competes in the same synthetic data category but with narrower geographic and segment focus.
• Synthetic Data Vault (SDV): Open-source Python library for synthetic data generation (CTGAN, TVAE, Gaussian Copula). Competes at the free/developer-tier end against MOSTLY AI's Apache v2 SDK and was included as a benchmark competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• GitHubgithub.com/mostly-ai/mostlyai
• Xx.com/mostly_ai

Compliance8 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 records

Funding overview

Funding rounds3 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about MOSTLY AI