What Balthazar does

Balthazar Labs B.V. is an Amsterdam-based SaaS company that provides an R&D workflow orchestration platform for deep tech laboratories working on hardware technologies such as semiconductors, photonics, quantum systems, and energy storage. The platform is purpose-built to replace the spreadsheets, ad-hoc Python scripts, and fragmented databases that characterize hardware R&D, offering a single structured environment where physical or virtual devices (Devices), experimental protocols (Flows written in Python), and experimental results (Runs) are linked together, version-controlled via Git, and made queryable in real time.

The technical architecture consists of three core components: Flows (Python-based experiment workflows that run locally on a lightweight 'Balthazar Runner' application and communicate with the cloud backend), Devices and Samples (representing physical or virtual objects under test with searchable parameters and hierarchical relationships such as QPU-to-qubit), and the Balthazar Workbench (a browser-based IDE for writing and running Flows). The platform supports both cloud and on-prem deployment, integrates with lab instruments via PyVISA and with quantum control hardware via Zurich Instruments LabOne Q, and includes ML-driven capabilities for closed-loop optimization and design iteration. A roadmap LLM copilot ('Labthazar') is announced but not yet released.

Balthazar operates a SaaS subscription model with self-serve trial access and demo-based enterprise sales, targeting deep tech R&D labs as its primary segment and extending into the space/satellite vertical through a co-developed SpaceSilicon-AI testing platform with SPHERICAL. The company raised a €1.2M pre-seed round in July 2025 (total funding €1.85M) led by CapitalT with Antler, and reports powering 6,000+ experiments across labs including TU Delft, SPHERICAL, and the Walther-Meißner-Institut.

Name

Balthazar

Legal name

Balthazar Labs B.V.

Website

https://balthazar.app

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

Balthazar is an Amsterdam-based SaaS platform that provides Python-based R&D workflow orchestration for deep tech laboratories in semiconductors, quantum, photonics, and energy storage, replacing spreadsheets with structured experiment tracking, device management, version-controlled workflows, and ML-driven optimization. Founded in 2024.

Ownership category

akta.pro rank

Product category

R&D Laboratory Software

NAICS

Software Publishers (513210), Computer Systems Design and Related Services (5415)

SIC

Services-Prepackaged Software (7372), Services-Computer Integrated Systems Design (7373)

akta.pro primary industry

AI Integration & Orchestration Platforms (Connectors, Workflow, iPaaS for AI) (HDAEANAI)

akta.pro secondary industries

End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA), iPaaS & Workflow Automation (BPAMAOAB)

Keywords

• R&D experiment management
• Deep tech laboratory software
• Scientific workflow orchestration
• Lab data management
• Semiconductor testing platform

Headquarters

HQ city

Amsterdam

HQ country

Netherlands

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

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

Revenue model

1. SaaS Platform Subscription: Balthazar operates as a SaaS platform providing subscription-based access to its R&D management platform. The platform offers cloud or on-prem deployment options, suggesting enterprise licensing models.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

Balthazar provides an AI-enabled SaaS platform that serves as a central R&D hub for deep tech laboratories, tracking experiments, prototypes, devices, and results in a structured, searchable system. The platform combines Python-based Flows for experiment orchestration, a device entity model for sample management, GitHub-backed version control, real-time dashboards, and ML-powered optimization. It is offered via cloud or on-prem deployment and replaces fragmented spreadsheets and ad-hoc scripts with a single source of truth for hardware R&D teams.

Product overview

Balthazar offers an AI-enabled platform-as-a-service for deep tech R&D labs, described as an 'operating system for deep tech R&D labs.' The core product consists of the Balthazar Platform (the central intelligence hub), complemented by three key technical components: Flows (Python-based experiment definitions and workflows), Devices/Samples (device entity management), and the Balthazar Runner (local execution agent). The Workbench provides the browser-based IDE for script development, while Apps enable customizable task-specific GUIs. The platform integrates with Zurich Instruments LabOne Q for quantum computing applications and connects to physical lab instruments via PyVISA. A notable collaborative product is SpaceSilicon-AI (with SPHERICAL) for semiconductor testing optimization. The system supports cloud or on-prem deployment with GitHub-backed version control.

Differentiator

Problem solved

Functional benefit

Products and services

• Balthazar Platform AI-enabled SaaS intelligence platform for deep tech R&D labs that serves as a central R&D hub to track experiments, prototypes, devices, and results. Replaces spreadsheets with structured, searchable data linking prototypes to design, recipes, and test results, with role-based access control and optional on-prem deployment.
• Balthazar Runner Lightweight desktop application installed on customer machines that executes experiment workflows locally while securely communicating with the Balthazar backend. Connects to the workspace via Runner ID and Token authentication, enabling remote execution of any Python code with locally installed libraries.
• SpaceSilicon-AI Collaborative testing platform developed with SPHERICAL that integrates AI-driven semiconductor testing with a cloud-connected data pipeline and ML algorithms for component reliability classification and prediction. Designed to reduce semiconductor testing costs by 80% for space-industry applications.

Quantifiable outcome

• 80% reduction in semiconductor testing costs
• +1 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

AI capability6 records

Feature6 records

Partnerships

Three partnerships are on record, tiered core and supporting.

• SPHERICALcoreStrategic or Co-development Partner · 1 January 2025Official launch of SpaceSilicon-AI, a collaboration to revolutionize semiconductor testing in the space industry. SPHERICAL's semiconductor design expertise combines with Balthazar's AI and cloud-based testing capabilities. The partnership focuses on developing a modular, fully automated test platform that reduces semiconductor testing costs by 80%. Supported by RVO's MIT R&D collaboration grant.
• Zurich InstrumentscoreTechnology or Integration · 1 January 2025Integration combining Zurich Instruments QCCS hardware and LabOne Q measurement workflows with Balthazar for experiment orchestration, structured data management, and decision-aware parameter updates. Balthazar executes LabOne Q workflows, captures full experimental context, and links results to device entities in a persistent database.
• RVO (Netherlands Enterprise Agency)supportingOthers · 1 January 2025Provided MIT R&D collaboration grant to support the SpaceSilicon-AI partnership between SPHERICAL and Balthazar.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• SciNote: Cloud-based ELN with experiment tracking, sample management, and team collaboration. Comparable in serving structured R&D workflows, though it is a notebook-centric product with less deep ML and device-orchestration capability.
• Citrine Informatics: AI platform for materials and chemicals R&D, helping labs centralize data and apply ML to design and process optimization. Directly comparable to Balthazar in applying AI to physical R&D workflows, though focused on materials rather than devices.
• Dotmatics: Scientific informatics platform for chemistry and biology R&D, providing ELN, LIMS, and data management. Comparable as an enterprise R&D data backbone, though broader and more established across life sciences.
• Benchling: Cloud R&D platform for life sciences that centralizes experiments, samples, and results. Closest analog in product architecture (centralized R&D hub, structured data, workflow tracking), though focused on biotech rather than deep tech hardware.
• LabArchives: Electronic lab notebook (ELN) widely used in academic and industrial research labs to record experiments and protocols. Comparable as an experiment-tracking system, though it is a notebook-first product rather than an orchestration platform.
• eLabNext: Digital lab platform combining ELN, LIMS, and sample management for research labs. Comparable as a SaaS R&D data platform targeting experimental labs, though broader in domain and less specialized for hardware/device R&D.

Emerging players

• Strangeworks: Quantum computing platform that orchestrates access to multiple quantum hardware backends and manages experiment workflows. Comparable in serving experimental deep tech R&D (quantum) with workflow orchestration, but more hardware-access oriented than Balthazar's data-centric approach.

Broad incumbents

• LabVantage: Established LIMS platform for regulated and industrial labs, covering sample, instrument, and workflow management. Comparable as a broad lab data backbone for enterprise labs, though more compliance/QA oriented and less focused on hardware/device R&D.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/balthazar-labs

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Funding overview

Funding rounds2 records

Investors2 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 Balthazar