Reson8

Reson8

Adapter-based ASR for European industries

Overview

Reson8 Labs builds customizable automatic speech recognition (ASR) tailored for European languages and regulated industries such as healthcare, legal, finance, and customer service. Its adapter-based ASR lets organizations adapt a base model to domain jargon by adding text-only context (up to about one million tokens) in under a minute, without full model retraining or audio fine-tuning. The system runs on company-owned GPUs in a Netherlands data center with GDPR-aligned data residency and a zero audio-retention policy. Compared with many competitors, Reson8 emphasizes domain-specific adaptation, strict data privacy, and local infrastructure to meet regulatory needs. The company’s goal is to scale Europe-based infrastructure and expand specialized models to more than 20 European languages, supported by funding from Balderton Capital and NP-Hard Ventures.

Launched Recently
Significant Headcount Growth

About Reson8

Simplify's Rating
Why Reson8 is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Enterprise Software

AI & Machine Learning

Healthcare

Company Size

1-10

Company Stage

Seed

Total Funding

$5.5M

Headquarters

Amsterdam, Netherlands

Founded

2026

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Simplify's Take

What believers are saying

  • Balderton led Reson8's €5 million pre-seed on March 19, 2026, validating the thesis.
  • Reson8.dev added self-serve pricing and Enterprise plans on September 22, 2026, widening funnel.
  • ISO 27001 certification and GDPR-compliant EU residency reduce procurement friction for hospitals and banks.

What critics are saying

  • ElevenLabs, Speechmatics, and Gladia already own multilingual speech budgets and customer trust.
  • Enterprise VPC deployment on September 22, 2026 signals buyers demand on-prem control Reson8 must match.
  • A single benchmark failure on Dutch or German destroys credibility and kills regulated-vertical sales.

What makes Reson8 unique

  • Adapter-based ASR customizes with text context in seconds, not retraining or audio fine-tuning.
  • Owns Dutch GPU infrastructure, zero audio retention, and EU processing for regulated customers.
  • Focuses on 20-plus European languages and domain jargon across healthcare, legal, finance.

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Funding

Total Funding

$5.5M

Above

Industry Average

Funded Over

1 Rounds

Seed funding is usually the first official round after pre-seed, when a startup has a prototype or concept. It’s typically used to develop the product, test the market, and start building the team. Investors here are often angel investors or early-stage venture capitalists.
Seed Funding Comparison
Above Average

Industry standards

$3.3M
$2M
Netflix
$2.3M
Instacart
$3M
Robinhood
$5.5M
Reson8

Benefits

Company Equity

Paid Vacation

Hybrid Work Options

Company News

Tech.eu
Mar 19th, 2026
Reson8 collects €5M to develop europe-focused speech AI.

Reson8 collects €5M to develop europe-focused speech AI. The Amsterdam-based speech AI startup is developing highly accurate, customisable speech recognition tools for European languages, available on demand. Amsterdam-based Reson8, a speech technology company developing hyper-customised automatic speech recognition (ASR), has raised €5 million in a pre-seed round led by Balderton Capital, with participation from NP Hard. The company aims to address limitations in existing speech recognition systems, where performance often declines across European languages, dialects, and domain-specific terminology. Instead of relying on generic models, Reson8 is building acoustically precise systems that can be adapted in real time using contextual data such as documents, websites, and calendars. Its approach uses lightweight, modular adapters to tailor recognition to specific conversations without increasing latency. Founded by Thomas Kluiters, Raoul Ritter, and Jarno Verhagen, the team brings experience in high-performance systems, AI, and speech technology. The company is focused on developing models that adapt to how language is used in real-world settings, particularly in professional environments where accuracy is critical. Reson8's technology is designed for applications in sectors such as healthcare, legal, and customer support, where specialised vocabulary and fast-paced communication can challenge traditional systems. By prioritising precision and adaptability, the platform aims to reduce errors in transcription and improve usability across different use cases. Generic speech models break the moment you leave English, and customers increasingly want control over where their data lives. We believe Europe can build its own speech infrastructure that is customisable, accurate, and operated locally, In contrast to providers reliant on US-based infrastructure, Reson8 is building and operating its own European infrastructure, offering greater control over data residency and compliance with regional requirements. At launch, the platform will support more than 20 European languages. The funding will be used to expand the company's infrastructure footprint in Europe, continue development of its speech models and inference stack, and grow the team. Follow the developments in the technology world. What would you like us to deliver to you?

The Next Web
Mar 18th, 2026
Reson8 raises €5m to build Europe-first speech AI

Amsterdam-based Reson8 has raised €5M in pre-seed funding to challenge US-centric speech platforms, building its own European infrastructure.

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