This article covers a Series A on 24 September 2025 for Synthesized, an agentic AI-native test infrastructure and test data provider for enterprises, founded by Nicolai Baldin. The company raised £14.9m in a round led by Redalpine, with participation from IQ Capital.

What does Synthesized do?

Synthesized is an enterprise platform that automates generation of test data and testing setups using agentic AI. It speeds software testing for enterprise teams and provides built-in compliance controls and audit reporting for validation.

Why is Synthesized useful?

Problem

Enterprises face slow, costly and risky software testing because realistic, regulation-safe test data and environments take weeks to create. This delays releases, raises costs and increases compliance risk across large, regulated organisations modernising many applications.

Solution

Synthesized explains that it automates generation of lifelike, regulation-safe test data and full test environments in minutes at scale. It plugs into CI/CD, enforces privacy controls, and cuts testing time, spend and compliance burden for enterprises.

How much did Synthesized raise?

Synthesized has raised £14.9m ($20m) in a Series A round led by Redalpine, alongside IQ Capital and existing backers. This makes it the 21st largest funding round in September 2025 (52 recorded). It ranks 111th of the year (459 recorded) in the Startupmag database, as of 24 September 2025.

For details on how Startupmag compiles its rankings, view our Methodology.

Who invested in Synthesized?

Key investors include:

Redalpine: A European venture capital firm investing in seed and early-stage technology companies across Europe.
IQ Capital: A UK venture capital firm focusing on early-stage deep tech and AI investments.
Mercia Ventures: A UK investor that provides capital to technology and life sciences businesses at seed and growth stages.
Seedcamp: A European seed-stage fund investing across sectors in early-stage startups.
UBS: A global bank and corporate investor active in strategic technology investments for enterprise clients.
Deutsche Bank: A global bank that previously invested in the company and has deepened its relationship after deploying the platform.

In the funding announcement, Daniel Graf from Redalpine said:

Synthesized is tackling one of the most urgent and overlooked challenges in the age of AI: how to test, validate, and trust what we build. Their platform doesn’t just generate high-quality test data - it lays the foundation for a new class of autonomous QA agents that will transform how modern software is verified and shipped.

The investor said it believes Synthesized can become the infrastructure layer for intelligent, automated quality assurance across regulated and mission-critical systems.

If you're researching potential backers in this space:

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Who founded Synthesized?

Nicolai Baldin is the founder of Synthesized.

In the funding announcement, Nicolai Baldin said:

Test data infrastructure is the foundation for quality software. By embedding agentic AI into every layer of testing, we’re enabling organizations to modernize QA processes, accelerate digital transformation, and confidently adopt AI-native testing.

The company continued the funding will be used to scale the team and further its work to make AI-driven test data and infrastructure the foundation for modern enterprise QA and software delivery.

Where is Synthesized based?

Synthesized is co-headquartered in London, UK, and New York, NY, USA.

What sector is Synthesized in?

Synthesized operates in the software testing sector. The sector creates tools and processes to check and improve software before release. In plain terms, it helps teams find bugs and ensure software works safely.

Key trends and challenges in Healthtech:

AI-driven test automation adoption

Healthcare organisations increasingly use AI to generate realistic, privacy-safe test data, cutting setup times from weeks to minutes.

Compliance and data privacy pressure

Strict health regulations make realistic anonymised test data essential to avoid breaches and regulatory fines.

Testing bottlenecks and operational costs

Waiting for test data causes most delays; 80% of software holdups come from environment setup.

For a deeper look at innovation in this space, see the latest funded Healthtech startups in the UK

They've invested in Synthesized

Get to know these Healthtech investors

Investor	Activity	Team
Redalpine	6 investment(s) investment(s)	1 contact contact
IQ Capital	19 investment(s) investment(s)	9 contacts contacts
Mercia (Mercia Ventures)	76 investment(s) investment(s)	14 contacts contacts
UBS	5 investment(s) investment(s)	more info
Seedcamp	27 investment(s) investment(s)	7 contacts contacts
Deutsche Bank	4 investment(s) investment(s)	more info